Seat System Cadillac SRX I

Fastener Tightening Specifications

Fastener Tightening Specifications

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Scheme 19

Folding Seat Horizontal Motor Assembly (AM0) Connector Part Information 968182-1 4-Way M Amp (BK) Pin Wire Color Circuit No. Function 1 YE 5464 Folding Seat Horizontal Motor Rearward Control 2 WH 5465 Folding Seat Horizontal Motor Forward Control 3 BN 5474 Folding Seat Position Sensor Low Reference 4 OG 5471 Folding Seat Horizontal Position Sensor Signal

Folding Seat Recline Motor Assembly (AM0) Connector Part Information 968182-1 4-Way M Amp (BK) Pin Wire Color Circuit No. Function 1 YE/BK 5468 Folding Seat Back Recline Motor Forward Control 2 GY 5469 Folding Seat Back Recline Motor Rearward Control 3 BN 5474 Folding Seat Position Sensor Low Reference 4 PK 5472 Folding Seat Recline Position Sensor Signal

Folding Seat Recline Switch (AM0) Connector Part Information 12047785 4-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A RD/WH 4540 Battery Positive Voltage B - - Not Used C L-BU 5368 Folding Seat Recline Switch Signal D - - Not Used

Folding Seat Rotation Motor Assembly (AM0) Connector Part Information 968182-1 4-Way M Amp (BK) Pin Wire Color Circuit No. Function 1 D-GN 5467 Folding Seat Back Rotation Motor Forward Control 2 D-BU 5466 Folding Seat Back Rotation Motor Rearward Control 3 BN 5474 Folding Seat Position Sensor Low Reference 4 PU/WH 5473 Folding Seat Rotation Position Sensor Signal

Folding Seat Stow Switch - Front (AM0) Connector Part Information 15419483 4-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A RD/WH 4540 Battery Positive Voltage B - - Not Used C D-BU 5366 Folding Seat Front Stow Switch Signal D - - Not Used

Folding Seat Stow Switch - Rear (AM0) Connector Part Information 15419483 4-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A RD/WH 4540 Battery Positive Voltage B - - Not Used C D-BU/WH 5367 Folding Seat Rear Stow Switch Signal D - - Not Used

Heated Seat Control Module - Driver C1 (KA1) Connector Part Information 12064769 10-Way F Metri-Pack 150 Series (WH) Pin Wire Color Circuit No. Function A RD/WH 2440 Battery Positive Voltage B BN 41 Ignition 3 Voltage C L-BU/WH 181 Heated Seat Control Module Status Signal D - - Not Used E PK 1501 Driver Heated Seat High/Low Signal F-J - - Not Used K BK 550 Ground

Heated Seat Control Module - Driver C2 (KA1) Connector Part Information 12064762 6-Way F Metri-Pack 150 Series (L-GY) Pin Wire Color Circuit No. Function A YE 9529 Heated Seat Element Supply Voltage B - - Not Used C YE 9530 Heated Seat Element Control D BK/RD 9534 Heated Seat Temperature Sensor Low Reference E - - Not Used F BK/RD 9533 Heated Seat Temperature Sensor Signal

Heated Seat Control Module - Passenger C1 (KA1) Connector Part Information 12064769 10-Way F Metri-Pack 150 Series (WH) Pin Wire Color Circuit No. Function A OG 2540 Battery Positive Voltage B BN 41 Ignition 3 Voltage C L-BU/WH 2181 Passenger Heated Seat Control Module Status Signal D - - Not Used E PK 1503 Passenger Heated Seat High/Low Signal F-J - - Not Used K BK 550 Ground

Heated Seat Control Module - Passenger C2 (KA1) Connector Part Information 12064762 6-Way F Metri-Pack 150 Series (L-GY) Pin Wire Color Circuit No. Function A YE 9529 Heated Seat Element Supply Voltage B - - Not Used C YE 9530 Heated Seat Element Control D BK/RD 9534 Heated Seat Temperature Sensor Low Reference E - - Not Used F BK/RD 9533 Heated Seat Temperature Sensor Signal

Memory Seat Module - Driver C1 (A45) Connector Part Information 12064749 2-Way F Metri-Pack 480 Series (BK) Pin Wire Color Circuit No. Function A RD/WH 3740 Battery Positive Voltage B BK 550 Ground

Memory Seat Module - Driver C2 (A45) Connector Part Information 12110113 32-Way F Micro-Pack 100 Series (RD) Pin Wire Color Circuit No. Function A1 D-GN 1518 Power Seat Front Vertical Up Switch Signal A2 YE 1519 Power Seat Rear Vertical Up Switch Signal A3 D-BU 1520 Power Seat Front Vertical Down Switch Signal A4 L-BU 1521 Power Seat Rear Vertical Down Switch Signal A5 TN 1522 Power Seat Horizontal Forward Switch Signal A6 L-GN 1523 Power Seat Horizontal Rearward Switch Signal A7 GY/BK 1269 Power Seat Recline Forward Switch Signal A8 D-GN/WH 1270 Power Seat Recline Rearward Switch Signal A9 D-BU 1064 Driver Seat Lumbar Rearward Switch Signal (AL2) A10 YE 1065 Driver Seat Lumbar Forward Switch Signal (AL2) A11-A12 - - Not Used A13 GY 788 5-Volt Reference A14 BN/WH 557 Front Vertical Seat Motor Position Sensor Signal A15 TN 782 Memory Seat/Mirror Sensor Low Reference A16 D-GN 569 Horizontal Seat Motor Position Sensor Signal B1 TN 568 Rear Vertical Seat Motor Position Sensor Signal B2 WH/BK 570 Driver Seat Recline Motor Position Sensor Signal B3 YE 1063 Driver Seat Lumbar Horizontal Position Sensor Signal (AL2) B4 D-GN 5953 Adjustable Accelerator Pedal Position Sensor Signal (JF4) B5 - - Not Used B6 D-BU 5952 Adjustable Brake Pedal Position Sensor Signal B7-B8 - - Not Used B9 PU 5286 Adjustable Pedals Motor Forward Control (JF4) B10 OG/BK 5285 Adjustable Pedals Motor Rearward Control (JF4) B11 RD/WH 2840 Battery Positive Voltage B12-B13 - - Not Used B14 PU 1807 Class 2 Serial Data B15-B16 - - Not Used

Memory Seat Module - Driver C3 (A45) Connector Part Information 12129431 16-Way F Metri-Pack 280 Series (BK) Pin Wire Color Circuit No. Function A D-GN 286 Driver Seat Front Vertical Motor Up Control B D-BU 611 Driver Seat Lumbar Motor Forward Control (AL2) C-E - - Not Used F L-GN 276 Driver Seat Recline Motor Forward Control G L-BU 277 Driver Seat Recline Motor Rearward Control H YE 5129 Adjustable Pedals Relay Rearward Control (JF4) J PU 5130 Adjustable Pedals Relay Forward Control (JF4) K - - Not Used L PK 610 Driver Seat Lumbar Motor Rearward Control (AL2) M D-BU 287 Driver Seat Front Vertical Motor Down Control N TN 285 Driver Seat Horizontal Motor Forward Control P L-BU 283 Driver Seat Rear Vertical Motor Down Control R YE 282 Driver Seat Rear Vertical Motor Up Control S L-GN 284 Driver Seat Horizontal Motor Rearward Control

Memory Seat Switch (A45) Connector Part Information 174966 4-Way F AMP Multi-Lock (BK) Pin Wire Color Circuit No. Function 1 YE 1491 Backlight Lamps Control 2 PU 616 Memory 2 Switch Signal 3 BK/WH 351 Ground 4 WH 615 Memory 1 Switch Signal

Rear Seat Module C1 (AM0) Connector Part Information 12064749 2-Way F Metri-Pack 480 Series (BK) Pin Wire Color Circuit No. Function A RD/WH 140 Battery Positive Voltage B BK 1050 Ground

Rear Seat Module C2 (AM0) Connector Part Information 12110114 32-Way F Micro-Pack 100 Series (WH) Pin Wire Color Circuit No. Function C1-C3 - - Not Used C4 PK 5472 Folding Seat Recline Position Sensor Signal C5 PU/WH 5473 Folding Seat Rotation Position Sensor Signal C6 - - Not Used C7 OG 5471 Folding Seat Horizontal Position Sensor Signal C8-C9 - - Not Used C10 L-GN 5698 Load Floor Position Switch Signal C11 PU 5470 Back Panel Position Switch Signal C12 D-BU 5366 Folding Seat Front Stow Switch Signal C13 L-BU 5368 Folding Seat Recline Switch Signal C14 - - Not Used C15 D-BU/WH 5367 Folding Seat Rear Stow Switch Signal C16 PU 1807 Class 2 Serial Data D1 YE/BK 5701 Load Floor Position Switch Supply Voltage D2 L-BU/WH 5700 Back Panel Position Switch Supply Voltage D3-D14 - - Not Used D15 BN 5474 Folding Seat Position Sensor Low Reference D16 - - Not Used

Rear Seat Module C3 (AM0) Connector Part Information 12129432 16-Way F Metri-Pack 280 Series (GY) Pin Wire Color Circuit No. Function A-B - - Not Used C YE/BK 5468 Folding Seat Back Recline Motor Forward Control D - - Not Used E D-BU 5466 Folding Seat Back Rotation Motor Rearward Control F-H - - Not Used J WH 5465 Folding Seat Horizontal Motor Forward Control K GY 5469 Folding Seat Back Recline Motor Rearward Control L D-GN 5467 Folding Seat Back Rotation Motor Forward Control M-N - - Not Used P YE 5494 Folding Seat Horizontal Motor Rearward Control R-S - - Not Used

Seat Adjuster Switch - Driver (w/o A45) Connector Part Information 15326110 12-Way F GT 280 Series (BK) Pin Wire Color Circuit No. Function A D-BU 77 Driver Seat Recline Motor Rearward B D-GN 76 Driver Seat Recline Motor Forward C BK 550 Ground D L-GN 290 Driver Seat Horizontal Motor Rearward Control E TN 296 Driver Seat Horizontal Motor Forward Control F RD/WH 3740 Battery Positive Voltage G-H - - Not Used J L-BU 289 Driver Seat Rear Vertical Motor Down Control K YE 288 Driver Seat Rear Vertical Motor Up Control L D-BU 298 Driver Seat Front Vertical Motor Down Control M D-GN 297 Driver Seat Front Vertical Motor Up Control

Seat Adjuster Switch - Driver (A45) Connector Part Information 15326110 12-Way F GT 280 Series (BK) Pin Wire Color Circuit No. Function A D-GN/WH 1270 Power Seat Recline Rearward Switch Signal B GY/BK 1269 Power Seat Recline Forward Switch Signal C - - Not Used D L-GN 1523 Power Seat Horizontal Rearward Switch Signal E TN 1522 Power Seat Horizontal Forward Switch Signal F RD/WH 2840 Battery Positive Voltage G-H - - Not Used J L-BU 1521 Power Seat Rear Vertical Down Switch Signal K YE 1519 Power Seat Rear Vertical Up Switch Signal L D-BU 1520 Power Seat Front Vertical Down Switch Signal M D-GN 1518 Power Seat Front Vertical Up Switch Signal

Seat Adjuster Switch - Passenger Connector Part Information 15326110 12-Way F GT 280 Series (BK) Pin Wire Color Circuit No. Function A OG 3740 Battery Positive Voltage B L-GN 290 Passenger Seat Horizontal Motor Rearward Control C TN 296 Passenger Seat Horizontal Motor Forward Control D BK 550 Ground E D-BU 77 Passenger Seat Recline Motor Rearward F D-GN 76 Passenger Seat Recline Motor Forward G D-BU 298 Passenger Seat Front Vertical Motor Down Control H D-GN 297 Passenger Seat Front Vertical Motor Up Control J L-BU 289 Passenger Seat Rear Vertical Motor Down Control K YE 288 Passenger Seat Rear Vertical Motor Up Control L-M - - Not Used

Seat Back Load Floor Position Switch (AM0) Connector Part Information 12059251 2-Way F Metri-Pack 150 Series (RD) Pin Wire Color Circuit No. Function A L-GN 5698 Load Floor Position Switch Signal B YE/BK 5701 Load Floor Position Switch Supply Voltage

Seat Back Panel Position Switch (AM0) Connector Part Information 12047662 2-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A PU 5470 Back Panel Position Switch Signal B L-BU/WH 5700 Back Panel Position Switch Supply Voltage

Seat Front Vertical Motor - Driver Connector Part Information 12129082 2-Way F Metri-Pack 280 Series, Flexlock (GY) Pin Wire Color Circuit No. Function A D-BU 287 Driver Seat Front Vertical Motor Down Control B D-GN 286 Driver Seat Front Vertical Motor Up Control

Seat Front Vertical Motor - Passenger Connector Part Information 12129081 2-Way F Metri-Pack 280 Series, Flexlock (BK) Pin Wire Color Circuit No. Function A D-GN 297 Passenger Seat Front Vertical Motor Up Control B D-BU 298 Passenger Seat Front Vertical Motor Down Control

Seat Front Vertical Position Sensor - Driver (A45) Connector Part Information 12059584 3-Way F Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A - - Not Available B TN 782 Memory Seat/Mirror Sensor Low Reference C BN/WH 557 Front Vertical Seat Motor Position Sensor Signal D GY 788 5-Volt Reference

Seat Horizontal Motor - Driver Connector Part Information 12064749 2-Way F Metri-Pack 480 Series (BK) Pin Wire Color Circuit No. Function A TN 285 Driver Seat Horizontal Motor Forward Control B L-GN 284 Driver Seat Horizontal Motor Rearward Control

Seat Horizontal Motor - Passenger Connector Part Information 12064749 2-Way F Metri-Pack 480 Series (BK) Pin Wire Color Circuit No. Function A L-GN 290 Passenger Seat Horizontal Motor Rearward Control B TN 296 Passenger Seat Horizontal Motor Forward Control

Seat Horizontal Position Sensor - Driver (A45) Connector Part Information 12059581 3-Way F Metri-Pack 150 Series (GY) Pin Wire Color Circuit No. Function A GY 788 5-Volt Reference B D-GN 569 Horizontal Seat Motor Position Sensor Signal C TN 782 Memory Seat/Mirror Sensor Low Reference D - - Not Available

Seat Lumbar Motor - Driver (AL2) Connector Part Information 12015199 2-Way F Metri-Pack 280 Series (BK) Pin Wire Color Circuit No. Function A D-BU 610 Driver Seat Lumbar Motor Rearward Control B PK 611 Driver Seat Lumbar Motor Forward Control

Seat Lumbar Motor - Passenger (AL2) Connector Part Information 12015199 2-Way F Metri-Pack 280 Series (BK) Pin Wire Color Circuit No. Function A D-BU 211 Passenger Seat Lumbar Motor Forward Control B WH 210 Passenger Seat Lumbar Motor Rearward Control

Seat Lumbar Switch - Driver (AL2) Connector Part Information 12041429 5-Way F Metri-Pack 280 Series (BK) Pin Wire Color Circuit No. Function A - - Not Used B YE 1065 Driver Seat Lumbar Forward Switch Signal C - - Not Used D RD/WH 2840 Battery Positive Voltage E D-BU 1064 Driver Seat Lumbar Rearward Switch Signal

Seat Lumbar Switch - Passenger (AL2) Connector Part Information 12041429 5-Way F Metri-Pack 280 Series (BK) Pin Wire Color Circuit No. Function A BK 550 Ground B D-BU 211 Passenger Seat Lumbar Motor Forward Control C BK 550 Ground D OG 3740 Battery Positive Voltage E WH 210 Passenger Seat Lumbar Motor Rearward Control

Seat Rear Vertical Motor - Driver Connector Part Information 12129081 2-Way F Metri-Pack 280 Series, Flexlock (BK) Pin Wire Color Circuit No. Function A YE 282 Driver Seat Rear Vertical Motor Up Control B L-BU 283 Driver Seat Rear Vertical Motor Down Control

Seat Rear Vertical Motor - Passenger Connector Part Information 12129082 2-Way F Metri-Pack 280 Series, Flexlock (GY) Pin Wire Color Circuit No. Function A L-BU 289 Passenger Seat Rear Vertical Motor Down Control B YE 288 Passenger Seat Rear Vertical Motor Up Control

Seat Rear Vertical Position Sensor - Driver (A45) Connector Part Information 12059582 3-Way F Metri-Pack 150 Series (BU) Pin Wire Color Circuit No. Function A GY 788 5-Volt Reference B TN 568 Rear Vertical Seat Motor Position Sensor Signal C - - Not Available D TN 782 Memory Seat/Mirror Sensor Low Reference

Seat Recline Motor - Driver Connector Part Information 12064749 2-Way F Metri-Pack 480 Series (BK) Pin Wire Color Circuit No. Function A L-GN 276 Driver Seat Recline Motor Forward Control B L-BU 277 Driver Seat Recline Motor Rearward Control

Seat Recline Motor - Passenger Connector Part Information 12064749 2-Way F Metri-Pack 480 Series (BK) Pin Wire Color Circuit No. Function A D-GN 76 Passenger Seat Recline Motor Forward Control B D-BU 77 Passenger Seat Recline Motor Rearward Control

Seat Recline Position Sensor - Driver (A45) Connector Part Information 39-01-4030 3-Way F Molex (NA) Pin Wire Color Circuit No. Function 1 TN 782 Memory Seat/Mirror Sensor Low Reference 2 GY 788 5-Volt Reference 3 WH/BK 570 Driver Seat Recline Motor Position Sensor Signal

Diagnostic Code Index

DIAGNOSTIC CODE INDEX

Diagnostic Starting Point - Seats

Always begin the diagnosis by reviewing the system Description and Operation. Reviewing the Description and Operation will help you determine the correct symptom diagnostic procedure. when a malfunction exists. Reviewing the Description and Operation will also help you determine if the condition described by the customer is normal operation.

For power seats without memory (A45), refer to Symptoms - Seats in order to identify the correct procedure for diagnosing the system and were the procedure is located.

For seats with memory (A45), heated seats, and for the rear folding seat, begin diagnosis with the Diagnostic System Check - Vehicle in Vehicle DTC Information. The Diagnostic System Check will provide the following information

1. The identification of the control modules which command the system.
2. The ability of the control modules to communicate through the serial data circuit.
3. The identification of any stored diagnostic trouble codes and their status.

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.

Scan Tool Output Controls

Memory Seat Module (MSM)

Rear Integration Module (RIM)

Rear Seat Module (RSM)

Scan Tool Data List

Memory Seat Module (MSM)

Driver Door Switch Assembly (DDSA)

Rear Integration Module (RIM)

Climate Control Panel

Rear Seat Module (RSM)

Circuit Description

Battery positive voltage is supplied to the memory seat module (MSM) from the seats circuit breaker located in the left rear fuse block. When commanded, this voltage is used by the MSM to power the seat motors through the motor control circuits. During memory recall functions and manual seat functions, the driven motor current is monitored through the motor control circuits by the MSM. When an overcurrent condition is detected, the MSM disables the sea motors in order to protect the internal MSM circuitry.

DTC Descriptor

This diagnostic procedure supports the following DTC

DTC B1336 Device Power 3 Circuit Range/Performance

Conditions for Running the DTC

The MSM monitors for overcurrent only when the seat motors are active.

Conditions for Setting the DTC

The MSM will set DTC B1336 when the measured current exceeds 81 amps for 100 milliseconds.

Action Taken When the DTC Sets

1. All memory recalls in progress are aborted.
2. The MSM will not respond to manual movements of the affected motor.

Conditions for Clearing the DTC

The MSM does not detect an overcurrent condition during seat movement.

Test Description

The numbers below refer to the step numbers on the diagnostic table.

1. 2: This test determines which directional motor exhibits excessive current.
2. 3: This test determines if the suspect motor has an internal short to ground.
3. 9: This test verifies the repair.

DTC B1336

Battery positive voltage is supplied at all times to the rear seat load floor switch and the rear seat position switch by the rear seat module (RSM). The RSM monitors these battery positive voltage supply circuits for the protection of internal circuitry of the module.

This diagnostic procedure supports the following DTC

DTC B1395 Device Voltage Reference Output 1 Circuit

The RSM must be powered and cannot have DTC B1327 - Battery Voltage Low as an active DTC for this DTC to set.

This DTC will set only when the RSM detects that the device switch supply voltage is less than 3 volts.

1. The RSM will not allow seat operation.
2. If this condition occurs during seat operation, the operation will be cancelled.

The DTC will clear when the RSM detects that the device switch voltage is greater than 3 volts.

DTC B1395

Battery positive voltage is supplied at all times to the seat adjuster switch and the memory seat module (MSM) through the same circuit. The MSM uses this battery voltage input to determine if battery positive voltage is applied to the seat adjuster switch.

This diagnostic procedure supports the following DTC

DTC B1420 Device Voltage

The MSM must be powered and cannot have DTC B1327 - Battery Voltage Low as an active DTC for this DTC to set.

This DTC will set only when the MSM detects less than 3 volts from the battery positive voltage circuit.

1. The MSM ignores all memory recall commands.
2. All manual seat functions will operate.

The DTC will clear when the MSM detects that the voltage from the circuit is greater than 3 volts.

DTC B1420

When the rear folding seat stow or recline switches are pressed they send a 12-volt signal through the switch signal circuit to the rear seat module (RSM). The RSM then commands the rear folding seat to move in response to the switch inputs.

DTC Descriptors

This diagnostic procedure supports the following DTCs

1. DTC B1545 Seat Stow Switch 1 Circuit
2. DTC B1546, Seat Stow Switch 2 Circuit
3. DTC B3729 Seat Recline Control Switch

The RSM must be powered and cannot have DTC B1327 - Battery Voltage Low as an active DTC for this DTC to set.

1. If a seat switch continues to be active for 15 seconds after a motor controlled by that switch reaches the end of its travel, the switch will be considered shorted and the RSM will set a switch DTC.
2. If a position sensor DTC is current and the associated switch is active for 30 continuous seconds, the switch will be considered shorted and the RSM will set a switch DTC.

1. Motor outputs being driven in response to the failed switch will be de-activated.
2. The RSM will respond to any other switch signal that has not set a DTC.

The DTC automatically clears when the switch circuit setting the DTC is no longer active.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: Checks the existing state of the third row seat switch by using the current state of the switch parameter.
2. 4: When the stow recline switch is disconnected, this step determines if the switch contacts are stuck closed, or if the switch signal circuit is possibly shorted to battery voltage.

DTC B1545, B1546, or B3729

Battery positive voltage is supplied to the rear seat module (RSM) from a 30-amp fuse located in the rear fuse block. When commanded, this voltage is used by the RSM to power the seat motors through there respective motor control circuits. During seat operations, the driven motor current is monitored through the motor control circuits by the RSM. When an overcurrent condition is detected, the RSM disables the seat motors in order to protect the internal RSM circuitry.

This diagnostic procedure supports the following DTCs

1. DTC B1547 Seat Back Rotation Motor Circuit
2. DTC B1770 Seat Motor 2 (Assembly Horizontally) Circuit
3. DTC B1785 Seat Motor (Recline) Circuit

The RSM monitors for overcurrent only when the seat motors are active.

The RSM will set this DTC when the measured current exceeds 81 amps for 100 milliseconds.

1. If the seat is moving when this condition occurs, the operation will be aborted.
2. The RSM will not respond to all third row seat switch inputs.
3. The RSM will set a history DTC.

1. The RSM does not detect an overcurrent condition during seat movement.
2. The history code will clear if the RSM does not detect an overcurrent for 100 ignition cycles.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: This test determines which directional motor exhibits excessive current.
2. 3: This test determines if the suspect motor has an internal short to ground.
3. 9: This test verifies the repair.

DTC B1547, B1770, or B1785

The rear seat module (RSM) monitors the position the rear folding seat motors by using hall effect position sensors which are an internal part of each motor. The RSM supplies each sensor with a 12-volt reference signal circuit and a low reference circuit. During seat operation, while the motor is active, each sensor provides the RSM with a single feedback pulse through the respective signal circuits for every rotation of the motor shaft. The RSM counts the feedback pulses from each sensor to determine seat position and end of travel limits for each of the seat motors.

This diagnostic procedure supports the following DTCs

1. DTC B1548 Seat Back Rotation Position Sensor Circuit
2. DTC B1825 Seat Recline Position Sensor Circuit
3. DTC B2375 Seat Assembly Horizontal Position Sensor Circuit

1. DTC B1327 - Battery Voltage Low is not current.
2. The seat adjuster motor must be active.
3. The RSM does not detect a stall condition on the motor being tested.

The RSM does not detect position sensor movement or pulse signals while the adjuster motor is active. The following conditions will set this DTC

1. An open, a short to ground, or a short to battery voltage in the position sensor signal circuit.
2. An open in the position senor low reference circuit.
3. An open in one the seat motor control circuits.

1. Current and history codes are set.
2. If the seat is moving when this condition occurs, the operation will be aborted.
3. While this condition exists all switch inputs will be ignored.

The RSM will clear the current DTC whenever a stow switch is activated and the RSM receives pulse signals from the position sensor while the motor is active.

The number below refers to the step number on the diagnostic table.

1. 3: This step determines if the fault is in the seat motor or motor control circuits, or, the position sensor or sensor circuits.
2. 15: This step verifies the repair.

DTC B1548, B1825, or B2375

When the power seat switches are pressed they send a 12-volt signal to the memory seat module (MSM). The MSM then commands the driver seat to move in response to the switch inputs.

This diagnostic procedure supports the following DTCs

1. DTC B1735 Seat Front Up Switch Circuit
2. DTC B1740 Seat Front Down Switch Circuit
3. DTC B1745 Seat Rear Up Switch Circuit
4. DTC B1750 Seat Rear Down Switch Circuit
5. DTC B1755 Seat Assembly Horizontal Forward Switch Circuit
6. DTC B1760 Seat Assembly Horizontal Rearward Switch Circuit
7. DTC B1815 Seat Recline Forward Switch Circuit
8. DTC B1820 Seat Recline Rearward Switch Circuit

The MSM must be powered and cannot have DTC B1327 - Battery Voltage Low as an active DTC for this DTC to set.

1. If a seat switch continues to be active for 30 seconds after a motor controlled by that switch reaches the end of its travel, the switch will be considered shorted and the MSM will set a switch DTC.
2. If a position sensor DTC is current and the associated switch is active for 30 continuous seconds, the switch will be considered shorted and the MSM will set a switch DTC.

1. A motor output driven in response to a switch considered failed, is deactivated for both directions.
2. All memory recall command are ignored.
3. The MSM will respond to any other switch signal that has not set a DTC.

The DTC automatically clears when the switch circuit setting the DTC is no longer active.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: Checks the existing state of the driver seat switch by using the current state of the seat switch parameter. If all of the seat switch parameters display active, possibly one of the seat switch signal circuits is shorted to voltage.
2. 4: When the seat switch is disconnected, this step determines if the seat switch contacts are stuck closed, or if one of the switch signal circuits is possibly shorted to battery voltage.

DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820

The position sensor that sets this DTC is attached to the seat directional motor. It receives a 5-volt reference and low reference from the memory seat module (MSM). The sensor sends a voltage signal that varies with the movement of the seat through the signal circuit to the MSM. Then based on this voltage signal, the MSM determines the position of the seat.

This diagnostic procedure supports the following DTCs

1. DTC B1825 Seat Recline Position Sensor Circuit
2. DTC B1850 Seat Lumbar Horizontal Position Sensor Circuit
3. DTC B1860 Seat Lumbar Vertical Position Sensor Circuit
4. DTC B2355 Seat Front Vertical Position Sensor Circuit
5. DTC B2365 Seat Rear Vertical Position Sensor Circuit
6. DTC B2375 Seat Assembly Horizontal Position Sensor Circuit

The MSM must be powered and cannot have DTC B1327 - Battery Voltage Low as an active DTC for this DTC to set.

If the MSM sees the voltage signal from this sensor as either lower than 0.25 volts or higher than 4.75 volts, the sensor will be considered out of range and the MSM will set this DTC.

The MSM disables all memory recall commands of the motor monitored by the sensor. The motor will respond to manual positioning commands.

The MSM will clear the DTC when it detects that the voltage from the sensor signal circuit is between 0.25-4.75 volts.

Diagnostic Aids

1. All position sensors use common low reference and 5-volt reference circuits.
2. If the 5-volt reference circuit is shorted to voltage multiple codes will set.
3. If the 5-volt reference circuit is shorted to ground multiple codes will set.
4. If the sensor low reference circuit is open multiple codes will set.

The numbers below refer to the step numbers on the diagnostic table.

1. 3: Tests for the proper operation of the circuit in the low voltage range.
2. 4: Tests for the proper operation of the circuit in the high voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to ground.
3. 5: Tests for a short to voltage in the 5-volt reference circuit.
4. 6: Tests for a high resistance or an open in the sensor low reference circuit.
5. 16: This step verifies the repair.

DTC B1825, B1850, B1860, B2355, B2365, or B2375

The sensor that set this diagnostic trouble code (DTC) is attached to the seat directional motor it monitors. It receives a 5-volt reference and low reference from the memory seat module (MSM). The sensor sends a voltage signal that varies with the movement of the seat through the sensor signal circuit to the MSM. Then based on this voltage signal, the MSM determines the position of the seat.

This diagnostic procedure supports the following DTCs

1. DTC B1826 Seat Recline Position Sensor Circuit Range/Performance
2. DTC B1851 Seat Lumbar Horizontal Position Sensor Circuit Range/Performance
3. DTC B1861 Seat Lumbar Vertical Position Sensor Circuit Range/Performance
4. DTC B2356 Seat Front Vertical Position Sensor Circuit Range/Performance
5. DTC B2366 Seat Rear Vertical Position Sensor Circuit Range/Performance
6. DTC B2376 Seat Assembly Horizontal Position Sensor Circuit Range/Performance

1. The MSM must be powered and cannot have DTC B1327 - Battery Voltage Low set as a current DTC for this DTC to set.
2. This test will run only when the motors are active.

If the sensor signal received by the MSM from a motor being driven in a commanded direction changes by more than 10 counts or 0.2 volt in the wrong direction, the MSM will set this DTC.

1. Current and History codes are set.
2. The MSM disables the affected motor during memory recall operations.
3. The affected motor will respond to manual positioning commands.

The MSM will clear the DTC as an active DTC, whenever a manual switch is activated and the MSM senses that the voltage from the sensor signal changes by more than 2 counts or 0.04 volt in the correct direction.

All position sensors use common 5-volt reference and low reference circuits.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: This step checks the direction in which the volts change as the switch is activated. The voltage should increase for the forward or up position and decrease for the rearward or down position.
2. 4: This step checks the polarity of the seat position sensor wiring.
3. 5: This step checks the polarity of the seat motor wiring.
4. 6: This step checks the polarity of the seat switch wiring.

DTC B1826, B1851, B1861, B2356, B2366, or B2376

When the power seat lumbar switches are pressed they send a 12-volt signal through the lumbar switch signal circuit to the memory seat module (MSM). The MSM commands the lumbar support to move in response to the switch inputs.

This diagnostic procedure supports the following DTCs

1. DTC B1830 Seat Lumbar Forward Switch Circuit
2. DTC B1835 Seat Lumbar Rearward Switch Circuit
3. DTC B1840 Seat Lumbar Up Switch Circuit
4. DTC B1845 Seat Lumbar Down Switch Circuit

The MSM must be powered and can not have DTC B1327 - Device Power 1 Circuit Low as an active DTC for this DTC to set.

1. If a seat switch circuit continues to be active for 30 seconds after a motor controlled by that switch reaches the end of its travel, the switch will be considered shorted and the MSM will set the DTC.
2. If a position sensor DTC is current and the associated switch is active for 30 continuous seconds, the switch will be considered shorted and the MSM will set a switch DTC.
3. A switch DTC will not set if DTC B1327 is current.

1. A motor output driven in response to a switch considered failed, is deactivated for both directions.
2. All memory recall commands are ignored.
3. The MSM will respond to any other switch input that has not set a DTC.

The DTC automatically clears when the switch circuit setting the DTC is no longer active.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: Checks the existing state of the driver's seat lumbar switch by using the current state of the input parameter. If all of the lumbar switch parameters display active, possibly one of the lumbar switch signal circuits is shorted to voltage.
2. 4: When the lumbar switch is disconnected, this step determines if the switch contacts are stuck closed, or if one of the switch signal circuits is possibly shorted to voltage.
3. 10: This step verifies the repair.

DTC B1830, B1835, B1840 or B1845

The memory function switches are normally open and are wired to the driver door switch assembly (DDSA). When a memory recall switch is pressed, the switch pulls the 5-volt signal circuit from the DDSA low. The DDSA senses that a memory recall signal was pulled low and a class 2 message is sent out identifying that the circuit is active.

This diagnostic procedure supports the following DTCs

1. DTC B2757 Memory 1 Select Switch Circuit Low
2. DTC B2762 Memory 2 Select Switch Circuit Low
3. DTC B2767 Memory Set Switch Circuit Low
4. DTC B2772 Memory Exit or Off Switch Circuit Low

The DDSA must be powered and can not have DTC 1328 - Battery Voltage High or B1327- Battery Voltage Low as active DTCs for this DTC to set.

If a memory switch signal circuit is active for more that 30 continuous seconds, the circuit will be considered shorted, and the DDSA will set this DTC.

The DDSA ignores the invalid switch signal from the memory function switch and will not respond to it. The DDSA will respond to all other valid switch signals.

The DTC automatically clears when the switch circuit setting the DTC is no longer active.

The numbers below refer to the step numbers on the diagnostic table.

1. 2: Checks the existing state of the memory switch by using the current state of the memory switch parameter.
2. 9: This step verifies the repair.

DTC B2757, B2762, B2767, or B2772

Symptoms - Seats

1. Refer to the system description and operation from the following list in order to familiarize yourself with the system functions: «Power Seats System Description and Operation (Front Seat)»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-seats-system-description-and-operation) «Power Seats System Description and Operation (Folding Seat)»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-seats-system-description-and-operation) «Lumbar Support Description and Operation (w/o A45)»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) «Lumbar Support Description and Operation (with A45)»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) «Heated Seats Description and Operation»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__heated-seats-description-and-operation) «Memory Seats Description and Operation»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__memory-seats-description-and-operation)
2. If you are diagnosing a seat with memory (A45), heated seats, or the power folding rear seat, perform the «Diagnostic System Check - Vehicle»(/cadillac/srx/i-2003-2009/remont/oem-general-information/#vehicle-dtc-information) in Vehicle DTC Information, before using the symptom tables in order to verify that all of the following are true: There are no DTCs set. The control module(s) can communicate via the serial data link.

Visual/Physical Inspection

1. Inspect for aftermarket devices which could affect the operation of the power seats. Refer to «Checking Aftermarket Accessories»(/cadillac/srx/i-2003-2009/remont/body-electrical/#how-to-diagnosis-repair-the-wiring-systems-testing__checking-aftermarket-accessories) in Wiring Systems.
2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
3. Inspect the seat adjuster track for conditions which may cause binding or objects within the seat adjustment range which obstruct movement or interfere with wiring.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom

1. «Power Seat Inoperative (w/o A45)»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-seat-inoperative-wo-a45) or «Power Seat Inoperative (with A45)»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
2. «Power Third Row Seat Inoperative»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
3. «Power Third Row Seat Recline Inoperative»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
4. «Memory Seat Feature Inoperative»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
5. «Lumbar Support Inoperative (w/o A45)»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__lumbar-support-inoperative-wo-a45) or «Lumbar Support Inoperative (with A45)»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
6. «Heated Seat Always On»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__heated-seat-always-on)
7. «Heated Seat Inoperative»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
8. «Heated Seat Temperature Adjustment Inoperative»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__heated-seat-temperature-adjustment-inoperative)
9. «Heated Seat Switch Mode Indicator Malfunction»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)

Power Seat Inoperative (w/o A45)

Power Seat Inoperative (w/o A45)

The numbers below refer to the step numbers on the diagnostic table.

1. 8: This step tests the integrity of the signal circuits of the seat adjuster switch. If the fuse in the jumper wire opens when you perform this test, a short to ground may have occurred.

Power Seat Inoperative (with A45)

The numbers below refer to the step numbers on the diagnostic table.

1. 2: This step ensures that the correct procedures are used when attempting to verify the operation of the rear folding seat. The rear seat module (RSM) must be enabled before the rear folding seat system will operate. Enabling the RSM using the remote keyless entry transmitter or the driver door/passenger door lock switch unlock sequence allows for the system to operate for 120 seconds before timing out. The RSM will restart the timing procedure after each time the recline or stow switch is pressed. Enabling the RSM by placing the ignition in either the ON or ACCESSORY positions allows for continuous operation of the folding seat system without the time out feature.
2. 4: This step verifies if the rear seat module (RSM) is calibrated. The module must be calibrated in order for the folding seat system to operate.
3. 6: This step determines from which stow switch the folding seat is inoperative.
4. 10: This step checks the existing state of the back panel position switch by using the current state of the switch parameter. If the power folding seat is in a position other than the seated or stowed position, the back panel position switch should be open and the Back Panel Position Switch parameter should display Inactive.
5. 11: This step checks the existing state of the load floor position switch by using the current state of the switch parameter. When the back panel is in the folded position the load floor position switch should be closed to voltage and the Load Floor Position Switch parameter should display Inactive.

Power Third Row Seat Inoperative

The power folding seat must be in the seated position before the seat back recline function will operate from the recline switch.

The number below refer to the step number on the diagnostic table.

1. 4: This step checks the existing state of the back panel position switch by using the current state of the switch parameter. With the power folding seat in the stowed position, the back panel position switch contacts should be closed to voltage and the Back Panel Position Switch parameter should display Active.

Power Third Row Seat Recline Inoperative

The numbers below refer to the step numbers on the diagnostic table.

1. 3: This step verifies that Personalization in the driver information center (DIC) is active. Memory seats cannot function if personalization is turned OFF. A check mark after personalization indicates that it is active.
2. 4: This step verifies that the Personalization Option in the dash integration module (DIM) is activated. Memory seats cannot function if the option is turned OFF. An asterisk beside the personalization option indicates that the option is activated.
3. 5: Turning ON the headlamps in this step eliminates the possibility of the memory function switch finding an alternative path to ground through the illumination circuit.
4. 8: This step tests the integrity of the memory 1 switch signal circuit of the driver door switch assembly. If the fuse in the jumper wire opens when you perform this test, a short to battery voltage may have occurred.
5. 10: This step tests the integrity of the memory 2 switch signal circuit of the driver door switch assembly. If the fuse in the jumper wire opens when you perform this test, a short to battery voltage may have occurred.

Memory Seat Feature Inoperative

Lumbar Support Inoperative (w/o A45)

Lumbar Support Inoperative (w/o A45)

The numbers below refer to the step numbers on the diagnostic table.

1. 7: This step tests the integrity of the signal circuits of the seat lumbar switch. If the fuse in the jumper wire opens when you perform this test, a short to ground may have occurred.

Lumbar Support Inoperative (with A45)

Heated Seat Always On

Heated Seat Always On

The number below refers to the step number on the diagnostic table.

1. 7: This step tests the integrity of the heated seat switch signal from the rear integration module. This signal is a momentary 35 millisecond one shot pulse signal that is monitored through a momentary voltage change in the volt meter when the switch is pressed. In order to accurately recognize the change in voltage, the volt meter reading should be stable before performing this test.

Heated Seat Inoperative

Heated Seat Temperature Adjustment Inoperative

Heated Seat Temperature Adjustment Inoperative

The number below refers to the step number on the diagnostic table.

1. 4: This step tests the integrity of the heated seat control module status signal circuit. If the fuse in the jumper wire opens when you perform this test, a short to battery voltage may have occurred.

Heated Seat Switch Mode Indicator Malfunction

Removal Procedure

1. Disable the SIR System. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) for driver's seat or «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) for passenger seat in SIR.
2. Move the front seat forward in order to access the front seat track trim cover (1).
3. Remove the seat track trim cover (1) from the seat track.
4. Remove the seat track fasteners from the seat track.
5. Disconnect the seat electrical connectors (1).
6. With the aid of an assistant, remove the seat from the vehicle.

Installation Procedure

1. With the aid of an assistant, install the seat into the vehicle.
2. Insert the front tabs (1) on the seat track into the floor.
3. Connect the electrical connectors (1).
4. Install the seat track fasteners. Tighten: Tighten the seat track fasteners to 30 N.m (22 lb ft).
5. Install the seat track trim covers (1).
6. Enable the SIR System. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) for driver's seat or «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) for passenger seat in SIR.

1. Disable the SIR System. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) driver's seat and «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) and passenger seat.
2. Move the seat to the full forward position.
3. Remove the retaining nuts (1) securing the seat cushion to the seat adjuster assembly.
4. Lift the front of the seat cushion upwards.
5. Remove the power seat switches. Refer to «Seat Switch Replacement - Power»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Disconnect the wiring harness fastener and retainers securing the wiring harness to the bottom of the seat cushion frame.
7. Pull the cushion forward in order to remove the seat cushion from the seat adjuster assembly.

1. Insert the seat cushion locators, at the rear of the seat cushion frame, into the rectangular openings in the seat adjuster assembly.
2. Secure the wiring harness to the seat cushion frame in the same position in which it was removed.
3. Install the power seat switches. Refer to «Seat Switch Replacement - Power»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
4. Lower the front of the seat cushion down into position onto the seat adjuster assembly.
5. Install the seat cushion nuts (1). Tighten: Tighten the nuts (1) to 10 N.m (88 lb in).
6. Enable the SIR. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) driver's seat and «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) and passenger seat.

1. Disable the SIR System. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) driver's seat and «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) and passenger seat.
2. Remove the seat cushion from the seat assembly. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Turn the seat cushion upside down on a clean protected surface.
4. Release the seat cushion cover J channels (1) from the seat cushion frame.
5. Remove the seat cushion cover (3).
6. Remove the seat cushion pad (2).

1. Install the seat cushion pad (2) to the seat cushion frame (1).
2. Install the seat cushion cover (3) over the seat cushion pad (2).
3. Work the seat cushion pad (2) into position so there are no wrinkles or lumps in the seat cushion cover (3).
4. Ensure the hook and loop fasteners on the seat cushion cover and the seat cushion pad are fully engaged in order to ensure proper fit of the seat cushion cover (3).
5. Turn the seat cushion assembly over.
6. Install the seat cushion cover J channels (1) to the seat cushion frame.
7. Install the seat cushion to the seat assembly. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
8. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) driver's seat and «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) and passenger seat.

1. Remove the seat back trim. Refer to «Seat Back Trim Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the head restraint. Refer to «Head Restraint Replacement - Front Seat»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the head restraint retainers. Refer to «Head Restraint Retainer Replacement - Front Seat»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Remove the inflatable restraint side impact module. Refer to «Inflatable Restraint Side Impact Module Replacement - Front»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
5. Disconnect the heated seat electrical connector to the seat back.
6. Remove all of the seat back cover J channels retaining the seat back cover and pad to the seat back frame.
7. Remove the seat cover (1) and cushion (2) from the seat back frame.
8. Remove the seat back cover (1) from the seat back cushion (2).

1. Install the seat back cover (1) to the seat back cushion (2).
2. Position the seat back cover and pad (1,2) to the seat back frame.
3. Install the J channels to seat back frame.
4. Connect the heated seat electrical connectors.
5. Install the inflatable restraint side impact module. Refer to «Inflatable Restraint Side Impact Module Replacement - Front»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
6. Install the head restraint retainers. Refer to «Head Restraint Retainer Replacement - Front Seat»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
7. Install the head restraint. Refer to «Head Restraint Replacement - Front Seat»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
8. Install the seat back trim. Refer to «Seat Back Trim Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the front bucket seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the seat cushion from seat. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the push-in retainer (1) from the trim covers.
4. Remove the trim covers.
5. Remove the seat back cover and pad. Refer to «Seat Back Cover and Pad Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Remove the front seat belt assembly. Refer to «Seat Belt Replacement - Front»(/cadillac/srx/i-2003-2009/remont/restraints-control-systems/#seat-belt-system) .
7. Disconnect and remove the remaining electrical connectors are attached to the seat back frame.
8. Remove the bolt retaining the seat back frame to the riser.
9. Remove the bolts (1) retaining the seat back frame to the recliner.
10. Lift up on the seat back frame in order to disengage the seat back from the recliner.

1. Slide the seat back frame down into the recliner and align the fasteners holes.
2. Install the seat back to recliner bolts (1). Tighten: Tighten the bolts to 52 N.m (38 lb ft).
3. Install the seat back to riser bolt (1). Tighten: Tighten the bolt to 35 N.m (26 lb ft).
4. Install the front seat belt assembly. Refer to «Seat Belt Replacement - Front»(/cadillac/srx/i-2003-2009/remont/restraints-control-systems/#seat-belt-system) .
5. Install the seat back cover and pad. Refer to «Seat Back Cover and Pad Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Install the trim covers.
7. Install the push-in retainer (1) to secure the trim cover.
8. Install the front seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
9. Route and connect the electrical connectors to the seat back.
10. Install the front seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the seat back frame. Refer to «Seat Back Frame Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Disconnect the recliner motor electrical connectors.
5. Remove the seat axle retainers (3).
6. Pull the seat track sides apart in order to separate the seat track sides.
7. Remove the nuts (1) securing the recliner to the seat track.

1. Install the nuts (1) securing the recliner to the seat track. Tighten: Tighten the nut to 65 N.m (18 lb ft).
2. Locate the axles and the seat position drive cable (2) in order to connect the seat track sides. IMPORTANT: Insure that the seat position motor cable is fully seated into the drive gear.
3. Install the seat axle retainers (3).
4. Connect the recliner motor electrical connectors.
5. Install the seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Install the seat back frame. Refer to «Seat Back Frame Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
7. Install the seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
8. Calibrate the seat. Refer to «Memory Seat Calibration Procedure»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__memory-seat-calibration-procedure) .

1. Remove the front seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Disconnect the electrical connector from the sensor (2).
3. Rotate the sensor counterclockwise and remove it (1).

1. Install the sensor (1) in the motor and rotate it clockwise until it locks in to place.
2. Connect the electrical connector (2) to the sensor.

1. Remove the front bucket seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the power recliner position sensor. Refer to «Power Recliner Sensor Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Disconnect the electrical connector from the motor.
4. Remove the recliner motor retaining nuts (1).
5. Slide the motor off of the shaft.

1. Slide the recliner motor on to the shaft
2. Install the recliner motor nuts (1). Tighten: Tighten the nuts to 10 N.m (88 lb in).
3. Install the electrical connector.
4. Install the recliner position sensor. Refer to «Power Recliner Sensor Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Install the seat into the vehicle. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Grasp the top portion of the seat back trim panel and pull out to release the push-in fasteners.
2. Firmly lift upwards to remove the seat back trim from the seat assembly.

1. Position the lower hooks on the seat back trim panel to the seat assembly.
2. Firmly push inwards on the top of the trim cover to secure the push-in fasteners.

1. Remove the seat back trim. Refer to «Seat Back Trim Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Disconnect the lumbar motor (1) electrical connector.
3. Push in on the lumbar assembly (2) and disengage the assembly from the seat frame.
4. Remove the lumbar assembly.

1. Install the lumbar assembly (2) to the seat frame.
2. Connect the electrical connector (1) to the lumbar motor.
3. Install the seat back trim. Refer to «Seat Back Trim Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat track trim cover (1) from the seat.
2. Disconnect the lumbar switch (2) electrical connector.
3. Remove the lumbar switch.

1. Install the lumbar switch (2) into the seat track trim cover (1).
2. Connect the electrical connector.
3. Install the seat track trim cover to the seat.

1. Remove the front bucket seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the front seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the seat back frame. Refer to «Seat Back Frame Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Install the seat back frame to the seat adjuster. Refer to «Seat Back Frame Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
2. Install the front seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
3. Install the front bucket seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
4. If the vehicle is equipped with memory seats, calibrate the seat. Refer to «Memory Seat Calibration Procedure»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__memory-seat-calibration-procedure) .

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) driver's seat and «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) and passenger seat.
2. Remove the seat cushion from the adjuster track enough to gain access to the power seat switch. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the knobs from the switch by gently prying them off using a flat bladed tool.
4. On the underside of the seat cushion, locate the retainers (1) securing the power seat switch bezel to the seat cushion frame (3).
5. Squeeze the retainers while gently prying the bezel from the seat cushion frame.
6. Remove the power seat switch bezel.
7. Release the J channel retainers securing the seat cushion cover to the seat cushion frame in order to gain access to the power seat switch.
8. Remove the push-in fastener securing the power seat switch (2) to the seat cushion frame (3).
9. Slide the power seat switch (2) from the seat cushion frame (3).
10. Disconnect the electrical connector (1) from the power seat switch.

1. Install the wiring harness in the position in which it was removed.
2. Connect the electrical connector to the power seat switch.
3. Slide the power seat switch upward into the seat cushion frame.
4. Install the push-in fastener in order to secure the power seat switch to the seat cushion frame.
5. Install the seat cushion cover over the switch.
6. Position the power seat switch bezel over the switches.
7. Engage the power seat switch bezel fasteners in order to secure the bezel to the seat cushion frame.
8. Install the power seat switch knobs.
9. Install the seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
10. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) driver's seat and «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) and passenger seat.

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) or to «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the seat cushion to gain access to the horizontal seat adjuster motor. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Disconnect the electrical connectors from the motor.
4. Remove the screws from the top of the adjuster motor.
5. Remove the seat adjuster drive cable (1) by pulling the cable out of the motor.
6. Remove the seat adjuster motor.
7. Remove the short drive cable from the seat adjuster.

1. Position the short drive cable into the seat adjuster.
2. Line up the square end of the cable with the motor.
3. Slide the motor on to the cable.
4. Install the long drive cable (1) into the motor.
5. Install the long cable into the seat adjuster.
6. Ensure that both cables are fully seated.
7. Install the motor retaining screws. Tighten: Tighten the screws to 5 N.m (44 lb in).
8. Connect the electrical connectors.
9. Install the seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
10. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) or to «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
11. If the vehicle is equipped with memory seats, calibrate the seat. Refer to «Memory Seat Calibration Procedure»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__memory-seat-calibration-procedure) .

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) or to «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Disconnect the electrical connectors from the motor.
4. Remove the retaining bolt (2) from the vertical seat adjuster motor.
5. Lift the motor up and release it from slot (1) in the adjuster.
6. Remove the motor.

1. Install the vertical seat adjuster motor into the slot (1) on the adjuster.
2. Rotate the motor down and position the motor into the seat adjuster.
3. Install the retaining bolt (2). Tighten: Tighten the bolt to 10 N.m (88 lb in).
4. Connect the electrical connectors.
5. Install the seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) or to «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
7. If the vehicle is equipped with memory seats, calibrate the seat. Refer to «Memory Seat Calibration Procedure»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__memory-seat-calibration-procedure) .

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) or to «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the seat assembly. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the seat cushion to gain access to the horizontal seat adjuster motor. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Disconnect the electrical connectors from the motor.
5. Remove the screws from the top of the adjuster motor.
6. Remove the seat adjuster drive cable (1) by pulling the cable out of the motor.
7. Remove the seat adjuster motor.
8. Remove the short drive cable from the seat adjuster.

1. Position the short drive cable into the seat adjuster.
2. Line up the square end of the cable with the motor.
3. Slide the motor on to the cable.
4. Install the long drive cable (1) into the motor.
5. Install the long cable into the seat adjuster.
6. Ensure that both cables are fully seated.
7. Install the motor retaining screws. Tighten: Tighten the screws to 5 N.m (44 lb in).
8. Connect the electrical connectors.
9. Install the seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
10. Install the seat assembly. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
11. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) or to «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
12. If the vehicle is equipped with memory seats, calibrate the seat. Refer to «Memory Seat Calibration Procedure»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__memory-seat-calibration-procedure) .

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) or to «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Disconnect the electrical connector from the seat adjuster motor sensor (3).
4. Release the tabs and remove the sensor.

1. Install the seat adjuster motor sensor to the motor.
2. Connect the electrical connector to the sensor (3).
3. Install the seat. Refer to «Seat Replacement - Bucket»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) for driver's seat or «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
5. Calibrate the seat. Refer to «Memory Seat Calibration Procedure»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__memory-seat-calibration-procedure) .

1. Disable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) or to «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
2. Remove the seat cushion to gain access to the horizontal seat adjuster motor. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Disconnect the electrical connectors from the motor.
4. Remove the seat adjuster drive cable (1) by pulling the cable out of the motor.
5. Remove the sensor from the motor.

1. Install the sensor to the motor.
2. Line up the square end of the cable with the motor.
3. Install the long drive cable (1) into the motor.
4. Install the long cable into the seat adjuster.
5. Ensure that the cable is fully seated.
6. Connect the electrical connectors.
7. Install the seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
8. Enable the SIR system. Refer to «SIR Disabling and Enabling Zone 7»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) or to «SIR Disabling and Enabling Zone 9»(/cadillac/srx/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system) in SIR.
9. Calibrate the seat. Refer to «Memory Seat Calibration Procedure»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__memory-seat-calibration-procedure) .

1. Insert a flat - bladed tool under the front edge of the switch to release the retainer from the door trim panel.
2. Disconnect the electrical connector from the lock switch.
3. Use a flat - bladed tool to disengage the locking tabs from both sides of the switch.
4. Remove the lock switch.

1. Snap the door lock switch into the door switch bezel.
2. Connect the electrical connector.
3. Insert the rear of the door lock switch into the door trim panel.
4. Press down on the front of the door lock switch to engage the switch to the door trim panel.

1. Remove the front seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Disconnect the electrical connectors from the heated seat module.
3. Remove the screws (1) retaining the memory seat module to the seat frame.
4. Remove the memory seat module.

1. Install the memory seat module and install the memory seat module screws (1). Tighten: Tighten the screws 2 N.m (18 lb in).
2. Connect the electrical connections to the module.
3. Install the front seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Calibrate the memory seat module for proper adjustable pedal operation. Refer to «Adjustable Pedal Calibration»(/cadillac/srx/i-2003-2009/remont/accessories-control-systems/#adjustable-pedal-system__adjustable-pedal-calibration) in Accessories.
5. Calibrate the seat. Refer to «Memory Seat Calibration Procedure»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__memory-seat-calibration-procedure) .

Memory Seat Calibration Procedure

The memory seat module uses position sensor inputs to establish soft stop locations for the adjuster motors several millimeters ahead of the physical limits of the adjuster assembly. After replacing a memory seat module or adjuster components, it may be necessary to reset the adjuster motor soft stop locations. When the repair procedure has been completed, operate the seat adjuster switch in every direction until the seat adjuster reaches its mechanical hard stop by repeatedly pressing and releasing the switch as necessary.

Heated Seat Switch Replacement - Front

The Heated Seat Switches are serviced with the HVAC Control Module. Refer to HVAC Control Module Replacement in HVAC Systems Automatic.

Seat Back Heater Element Replacement - Front

The heater element is not a serviceable unit. The heater element is part of the seat cover and the cover and heater element must be replaced together. Refer to Seat Back Cover and Pad Replacement - Front .

Seat Cushion Heater Element Replacement - Front

The heater element is not serviced separately. The heater element is part of the seat cover, the seat cover and heater element must be replaced as an assembly. Refer to Seat Cushion Replacement - Front .

1. Remove the front seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
2. Disconnect the electrical connector from the heated seat module.
3. Remove the heated seat module screws (2) and remove the module.

1. Install the heated seat control module and install the retaining screws (2). Tighten: Tighten the screws to 2 N.m (18 lb in).
2. Connect the electrical connector.
3. Install the seat cushion. Refer to «Seat Cushion Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Push in the release tab on the head restraint retainer to release.
2. Pull straight up on the head restraint to remove the restraint from the retainers.

1. Align the head restraint shafts to the retainers.
2. Slide the head restraint down until fully seated on the top of the seat back.

1. Remove the front seat head restraint. Refer to «Head Restraint Replacement - Front Seat»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Turn the head restraint upside down on a clean protected surface.
3. Release the J-Channel retainer securing the cover to the head restraint.
4. Remove the cover from the head restraint.

1. Install the cover over the head restraint.
2. Close the J-channel retainer in order to secure the cover to the head restraint.
3. Ensure there are no lumps or wrinkles in the head restraint cover.
4. Install the head restraint to the seat assembly. Refer to «Head Restraint Replacement - Front Seat»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat back trim. Refer to «Seat Back Trim Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the head restraint. Refer to «Head Restraint Replacement - Front Seat»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Release the seat cover J channel (2) from the seat back frame.
4. Pinch the head restraint retainer (1) to release it from the seat frame.

1. Install the seat cover J channel (2) to the seat back frame.
2. Install the seat back trim. Refer to «Seat Back Trim Replacement - Front»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Insert the head restraint retainer through the seat cover and into the frame.
4. Install the head restraint. Refer to «Head Restraint Replacement - Front Seat»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the rear seat mounting nuts (1) securing the seat to the vehicle.
2. Remove the rear seat latch covers (1).
3. Remove the rear seat mounting bolts (1) from the front of the seat.
4. Remove the seat from the vehicle.

1. Position the seat on the floor studs.
2. Install the rear seat nuts to the front of the seat. Do not tighten the nuts.
3. Install the rear seat nuts (1) to the rear of the seat
4. Install the rear seat mounting nuts. Tighten: Tighten the rear seat mounting nuts to 45 N.m (33 lb ft).
5. Install the rear seat latch covers (1).

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the seat cushion mounting nuts (1) from the seat bottom.
3. Remove the seat belt anchor nut (1) from the seat frame.
4. Remove the seat cushion from the seat.

1. Ensure the seat belt mount is in the correct location (1).
2. Install the seat cushion into the seat.
3. Install the rear seat cushion nuts (1) securing the seat cushion to the seat frame. Tighten: Tighten the nuts to 24 N.m (18 lb ft).
4. Install the seat belt buckle nut (1) securing the seat cushion to the seat frame. Tighten: Tighten the seat belt buckle nuts to 42 N.m (31 lb ft).
5. Install the seat in the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the seat bottom panel screws (1) from the seat bottom.
3. Remove the two springs (1) from the seat bottom.
4. Remove the seat cushion mounting nuts (1) from the front of the seat.
5. Remove the seat cushion mounting nuts (1) from the rear of the seat.
6. Remove the seat cushion from the seat.

1. Install the seat cushion into the seat.
2. Install the rear seat cushion nuts (1) securing the seat cushion to the seat frame. Tighten: Tighten the nuts to 24 N.m (18 lb ft).
3. Install the seat cushion nuts (1) securing the seat cushion to the seat frame. Tighten: Tighten the nuts to 24 N.m (18 lb ft).
4. Install the two springs (1) to the seat cushion.
5. Install the bottom panel screws (1) to the seat. Tighten: Tighten the bottom panel screws to 2 N.m (18 lb in).
6. Install the seat in the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the left seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the suspension spring from the bottom of the seat.
4. Disconnect the J channel retainers (1) from around the seat.
5. Remove the seat cushion cover.

1. Install the seat cushion cover on to the seat.
2. Connect all J channel retainers (1).
3. Install the suspension spring from the bottom of the seat.
4. Install the left seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Install the seat in the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the right seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the suspension spring from the bottom of the seat.
4. Disconnect the J channel retainers (1) from around the seat.
5. Remove the seat cushion cover.

1. Install the seat cushion cover on to the seat.
2. Connect all J channel retainers (1).
3. Install the suspension spring from the bottom of the seat.
4. Install the right seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Install the seat in the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the left seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the pivot trim cover screws (1).
4. Remove the outer pivot covers.
5. Disconnect the J channel retainers (1).
6. Remove the seat back retaining bolts (2).
7. Remove the seat back from the seat adjuster.

1. Install the seat back on to the seat adjuster.
2. Install the seat back retaining bolts (2). Tighten: Tighten the bolts to 35 N.m (26 lb ft).
3. Connect the J channel retainers (1).
4. Install the pivot cover screws (1). Tighten: Tighten the screws to 2 N.m (18 lb in).
5. Install the seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Install the seat into the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the right seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the pivot trim cover screws (1).
4. Remove the outer pivot covers.
5. Disconnect the seat release cables (2) from the seat adjuster.
6. Disconnect the J channel retainers (1).
7. Remove the seat back retaining bolts (2).
8. Remove the seat back retaining bolt (1).
9. Remove the seat back from the seat adjuster.

1. Install the seat back on to the seat adjuster.
2. Install the seat back retaining bolts (2). Tighten: Tighten the bolts to 35 N.m (26 lb ft).
3. Install the seat back retaining bolt (1). Tighten: Tighten the bolt to 35 N.m (26 lb ft).
4. Connect the seat release cables (2) to the seat adjuster.
5. Connect the J channel retainers (1).
6. Install the pivot cover screws (1). Tighten: Tighten the screws to 2 N.m (18 lb in).
7. Install the seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
8. Install the seat into the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the head restraints. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the head restraint guides. Refer to «Head Restraint Guide Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Remove the left seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Remove the seat belt guide mounting screw (1).
6. Remove the seat belt guide from the seat.
7. Remove the child seat belt anchor bezel (1) from the seat.
8. Disconnect the J channels retainers (1) from the side of the seat cover.
9. Remove the push in retainers (2) from the seat cover.
10. Remove the seat release latch screw (1).
11. Remove the latch from the seat.
12. Remove the seat back cover.

1. Install the seat back cover on to the seat back.
2. Install the push in retainers (2) that retain the seat cover.
3. Install the J channel retainers (1).
4. Install the seat release latch screw (1). Tighten: Tighten the screw to 2 N.m (18 lb in).
5. Install the seat belt guide screw (1). Tighten: Tighten the seat belt guide screw to 2 N.m (18 lb in).
6. Install the child restraint anchor bezel (1).
7. Install the left seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
8. Install the head restraint guides. Refer to «Head Restraint Guide Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
9. Install the head restraints. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
10. Install the seat in the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the head restraints. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the head restraint guides. Refer to «Head Restraint Guide Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Remove the right seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Remove the seat release latch screw (1).
6. Disconnect the release cables.
7. Remove the latch from the seat.
8. Remove the seat back cover.

1. Install the seat back cover on to the seat back.
2. Install the seat release cable to the release latch.
3. Install the seat release latch to the seat.
4. Install the seat release latch screw (1). Tighten: Tighten the screw to 2 N.m (18 lb in).
5. Install the right seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Install the head restraint guides. Refer to «Head Restraint Guide Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
7. Install the head restraints. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
8. Install the seat in the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the screw (1) from the release assembly.
2. Disconnect the cable from the release assembly.
3. Remove the release assembly.

1. Connect the release cable to the release latch assembly.
2. Install the latch assembly to the seat cushion frame with the mounting screw (1). Tighten: Tighten the latch assembly screw to 2 N.m (18 lb in).

1. Remove the seat. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the left seat back. Refer to «Seat Back Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the seat back cover and pad. Refer to «Seat Back Cover and Pad Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Remove the latch release assembly. Refer to «Seat Back Release Latch Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Remove the head restraints. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Remove the head restraint guides. Refer to «Head Restraint Guide Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
7. Remove the seat belt retractor assembly. Refer to «Seat Belt Retractor Replacement - No. 1 Rear Center»(/cadillac/srx/i-2003-2009/remont/restraints-control-systems/#seat-belt-system) in Seat Belts.

1. Install the seat belt retractor assembly. Refer to «Seat Belt Retractor Replacement - No. 1 Rear Center»(/cadillac/srx/i-2003-2009/remont/restraints-control-systems/#seat-belt-system) in Seat Belts.
2. Install the seat back cover and pad. Refer to «Seat Back Cover and Pad Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Install the latch release assembly. Refer to «Seat Back Release Latch Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Install the head restraint guides. Refer to «Head Restraint Guide Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Install the head restraints. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Install the left seat back. Refer to «Seat Back Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
7. Install the seat. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the right seat back. Refer to «Seat Back Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the seat back cover and pad. Refer to «Seat Back Cover and Pad Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Remove the latch release assembly. Refer to «Seat Back Release Latch Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Remove the head restraint. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Remove the head restraint guides. Refer to «Head Restraint Guide Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Install the seat back cover and pad. Refer to «Seat Back Cover and Pad Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Install the latch release assembly. Refer to «Seat Back Release Latch Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Install the head restraint guides. Refer to «Head Restraint Guide Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Install the head restraint. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Install the right seat back. Refer to «Seat Back Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Install the seat. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Move the left side of the seat in the full forward position.
2. Release the J channel retainer (1) from the seat back.
3. Lift the seat back cover up to gain access to the armrest retainers.
4. Remove the armrest retaining nuts (1) from the armrest.
5. Remove the armrest from the seat.

1. Install the armrest into the seat back.
2. Install the armrest nuts (1). Tighten: Tighten the armrest nuts to 9 N.m (80 lb in).
3. Install the J channel retainer (1) from the right side of the seat back.

1. Push in on the release tab located on the head restraint retainer (1) to remove the head restraint.
2. Remove the head restraint from the seat back.

1. Align the rear seat head restraint to the head restraint retainers.
2. Push the heads restraint down until the head restraint is fully seated against the rear seat back.

Scheme 20

Rear Seat Head Restraint Installation - Center

1. Remove the rear seat. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the rear seat back. Refer to «Seat Back Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) or «Seat Back Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the head restraints. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Remove the rear seat back cover far enough to access the head restraint guides. Refer to «Seat Back Cover and Pad Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) or «Seat Back Cover and Pad Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Pinch the head restraint guide (1) to release it from the seat frame.
6. Remove the head restraint guide.

1. Connect the J channel retainers (1) on the rear seat back cover.
2. Install the head restraint guides into the seat back frame.
3. Install the head restraints. Refer to «Head Restraint Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Install the rear seat back. Refer to «Seat Back Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) or «Seat Back Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Install the rear seat. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the right seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the left seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Remove the pivot trim cover screws (1).
5. Remove the outer pivot covers.
6. Remove the right seat back. Refer to «Seat Back Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
7. Remove the left seat back. Refer to «Seat Back Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Install the left seat back on to the seat adjuster. Refer to «Seat Back Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Install the right seat back on to the adjuster. Refer to «Seat Back Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Install the inner pivot covers.
4. Install the outer pivot covers.
5. Install the pivot cover screws (1). Tighten: Tighten the pivot cover screws to 2 N.m (18 lb in).
6. Install the right seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Right»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
7. Install the left seat cushion. Refer to «Seat Cushion Replacement - Rear No.1 - Left»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
8. Install the seat into the vehicle. Refer to «Seat Replacement - Rear No. 1»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the rear seat track covers (1) from the front of the seat.
2. Raise the seat back to the upright position.
3. Remove the rear seat track cover (1) from the rear of the seat.
4. Remove the rear seat mounting bolts (1) from the rear of the seat.
5. Disconnect the electrical connectors from the seat.
6. Remove the seat from the vehicle.

1. Insert the hooks (1) at the front of the seat into the slots in the floor.
2. Connect the electrical connector to the seat.
3. Install the rear seat mounting bolts (1). Tighten: Tighten the mounting nuts to 45 N.m (33 lb ft).
4. Install the seat track cover (1) to the rear of the seat track.
5. Install the rear seat track covers to the front of the seat (1).
6. Calibrate the seat. Refer to «Power Folding Seat Calibration»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-folding-seat-calibration) .

1. Remove the seat cushion frame. Refer to «Seat Cushion Frame Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Disconnect the electrical connector (1) from the seat control module.
3. Remove the nuts from the control module (2).
4. Remove the module.

1. Install the seat control module on to seat adjuster.
2. Install the seat control module nuts (2). Tighten: Tighten the nuts to 9 N.m (80 lb in).
3. Connect the electrical connector (2) to the control module.
4. Install the seat cushion frame. Refer to «Seat Cushion Frame Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Calibrate the seat. Refer to «Power Folding Seat Calibration»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-folding-seat-calibration) .

1. Remove the seat back panel. Refer to «Seat Back Panel Replacement - Rear Seat No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Disconnect the electrical connectors (1) from the panel.
3. Remove the fasteners from the seat back presence sensor.
4. Remove the sensor.

1. Install the seat back presence sensor to the seat back panel.
2. Install the seat back presence sensor bolts to the seat back panel. Tighten: Tighten the bolts to 9 N.m (80 lb in).
3. Connect the electrical connectors (1) to the seat back panel.
4. Install the seat back panel. Refer to «Seat Back Panel Replacement - Rear Seat No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Calibrate the seat. Refer to «Power Folding Seat Calibration»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-folding-seat-calibration) .

1. Remove the body side rear trim panel. Refer to «Trim Panel Replacement - Body Side Rear (w/o TB5)»(/cadillac/srx/i-2003-2009/remont/exteriorinterior-trim/#interior-trim) or «Trim Panel Replacement - Body Side Rear (w/TB5)»(/cadillac/srx/i-2003-2009/remont/exteriorinterior-trim/#interior-trim) in Body Rear End.
2. Remove the folding seat switch (3) from the trim panel.

1. Install the folding seat switch (3) to the trim panel.
2. Install the body side rear trim panel. Refer to «Trim Panel Replacement - Body Side Rear (w/o TB5)»(/cadillac/srx/i-2003-2009/remont/exteriorinterior-trim/#interior-trim) or «Trim Panel Replacement - Body Side Rear (w/TB5)»(/cadillac/srx/i-2003-2009/remont/exteriorinterior-trim/#interior-trim) in Body Rear End.
3. Calibrate the seat. Refer to «Power Folding Seat Calibration»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-folding-seat-calibration) .

1. Remove the body side rear trim panel. Refer to «Trim Panel Replacement - Body Side Rear (w/o TB5)»(/cadillac/srx/i-2003-2009/remont/exteriorinterior-trim/#interior-trim) or «Trim Panel Replacement - Body Side Rear (w/TB5)»(/cadillac/srx/i-2003-2009/remont/exteriorinterior-trim/#interior-trim) in Body Rear End.
2. Remove the folding seat switch (2) from the trim panel.

1. Install the folding seat switch (2) to the trim panel.
2. Install the body side rear trim panel. Refer to «Trim Panel Replacement - Body Side Rear (w/o TB5)»(/cadillac/srx/i-2003-2009/remont/exteriorinterior-trim/#interior-trim) or «Trim Panel Replacement - Body Side Rear (w/TB5)»(/cadillac/srx/i-2003-2009/remont/exteriorinterior-trim/#interior-trim) in Body Rear End.
3. Calibrate the seat. Refer to «Power Folding Seat Calibration»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-folding-seat-calibration) .

1. Lift the seat back panel up to access fastener covers.
2. Using a flat-bladed tool, remove the fastener covers (1) from the seat back panel.
3. Remove the seat back panel bolts (1).
4. Disconnect the electrical connectors (1) from the panel.
5. Remove the seat back panel.

1. Connect the electrical connectors (1) to the seat back panel.
2. Install the seat back panel bolts (1) to the seat back. Tighten: Tighten the bolts to 9 N.m (80 lb in).
3. Install the seat back panel fastener covers (1) to the seat back panel.
4. Calibrate the seat. Refer to «Power Folding Seat Calibration»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-folding-seat-calibration) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the seat cushion frame. Refer to «Seat Cushion Frame Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the push on retainer (1) from the recliner motor driveshaft.
4. Disconnect the electrical connector from the motor.
5. Slide the shaft (1) out of the recliner motor (2) and bushings (3).

1. Slide the recliner motor driveshaft (1) through the recliner motor (2) and the bushings (3).
2. Connect the electrical connector to the recliner motor.
3. Install a new push on retainer (1) on the recliner motor driveshaft.
4. Install the seat cushion frame. Refer to «Seat Cushion Frame Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Install the seat into the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Calibrate the seat. Refer to «Power Folding Seat Calibration»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-folding-seat-calibration) .

1. Using a flat-bladed tool, remove the retainer covers from the seat back (1).
2. Remove the seat back panel bolts (1).
3. Disconnect the electrical connectors (1).
4. Disconnect the seat back cover J-channel (1) sides.
5. Disconnect the seat back cover J-channel (1).
6. Remove the seat back retaining bolts (1) from both sides of the seat back.
7. Carefully feed the harness through the side of the seat back as you remove the seat back.
8. Remove the rear seat retainer cover (1).
9. Remove the rear seat no. 2 retaining bolts (1).
10. Disconnect the electrical connectors from the rear seat.
11. Remove the seat track covers (1).
12. With the aid from an assistant, remove the rear seat.

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the rear seat back panel. Refer to «Seat Back Panel Replacement - Rear Seat No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the head restraints. Refer to «Head Restraint Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Remove the rear seat back cover. Refer to «Seat Back Cover and Pad Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Remove the inner recliner arm covers (1) from the seat back.
6. Remove the outer recliner arm cover screws (1).
7. Remove the outer recliner arm pivot covers.
8. Disconnect the electrical connector form the rotation motor.
9. Remove the rotation motor bolts (2).
10. Slide the rotation motor off of the driveshaft.

1. Slide the rotation motor on to the driveshaft.
2. Install the rotation motor mounting bolts (2). Tighten: Tighten the bolts to 7 N.m (62 lb in).
3. Connect the electrical connector to the rotation motor.
4. Install the outer recliner arm pivot covers.
5. Install the outer recliner arm cover screws (1). Tighten: Tighten the screws to 2 N.m (18 lb in).
6. Install the inner recliner arm covers (1) to the seat back.
7. Install the rear seat back cover. Refer to «Seat Back Cover and Pad Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
8. Install the head restraints. Refer to «Head Restraint Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
9. Install the rear seat back panel. Refer to «Seat Back Panel Replacement - Rear Seat No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
10. Install the seat in the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
11. Calibrate the seat. Refer to «Power Folding Seat Calibration»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-folding-seat-calibration) .

1. Remove the seat cushion frame. Refer to «Seat Cushion Frame Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Disconnect the drive cables from the horizontal motor (1).
3. Disconnect the electrical connector from the motor.
4. Remove the motor.

1. Install the horizontal seat motor (1) to the frame.
2. Install the horizontal seat motor screws. Tighten: Tighten the screws to 10 N.m (88 lb in).
3. Install the cables into the motor.
4. Connect the electrical connector to the seat motor.
5. Install the seat cushion frame. Refer to «Seat Cushion Frame Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
6. Calibrate the seat. Refer to «Power Folding Seat Calibration»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system__power-folding-seat-calibration) .

Power Folding Seat Calibration

The rear seat module (RSM) must be calibrated in order for the power folding seat to operate. Perform the following in order to prepare for and perform the RSM Auto Calibration.

1. The battery is fully charged.
2. The liftgate or the right rear passenger door is open.
3. Install a scan tool.
4. With a scan tool, navigate to the Auto Calibration screen by making the following selections: Rear Seat Module Special Functions Auto Calibration
5. Follow the on screen instructions to calibrate the RSM.
6. With a scan tool, verify that the RSM is calibrated by making the following selections: Rear Seat Module Data Display Data
7. The scan tool Calibrated parameter should display Yes.

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Lay the seat down on the seat back.
3. Disconnect the J channel retainers (1) from the sides of the seat cover.
4. Remove the seat cover (1) from the seat bottom.

1. Install the seat cover (1) on to the seat bottom.
2. Connect all J channel retainers (1).
3. Install the seat into the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Lay the seat down on the seat back.
3. Disconnect the J channel retainers (1) from the sides of the seat cover.
4. Remove the seat cover (1) from the seat bottom.
5. Remove the recliner motor screws (1) from the seat frame.
6. Remove the screws from the horizontal motor (1).
7. Remove the seat frame bolts (1).
8. Remove the seat frame.

1. Place the seat frame onto the seat adjuster.
2. Install the seat frame retaining bolts (1). Tighten: Tighten the bolts to 35 N.m (26 lb ft).
3. Install the horizontal motor (1). Tighten: Tighten the horizontal motor screws to 10 N.m (88 lb in).
4. Install the recliner motor to the seat frame. Tighten: Tighten the recliner motor screws (1) to 10 N.m (88 lb in).
5. Install the seat cover (1) on to the seat bottom.
6. Connect all J channel retainers (1).
7. Install the seat into the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

1. Push in on the release tab located on the head restraint retainer (1) to remove the head restraint.
2. Remove the head restraint from the seat back.

1. Align the rear seat head restraint to the head restraint retainers.
2. Push the heads restraint down until the head restraint is fully seated against the rear seat back.

1. Remove the seat from the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
2. Remove the rear seat back panel. Refer to «Seat Back Panel Replacement - Rear Seat No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
3. Remove the head restraints. Refer to «Head Restraint Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
4. Disconnect the J channel retainers (1) from around the seat back.
5. Remove the seat back cover.

1. Install the seat back cover on to the seat.
2. Connect all J channel retainers (1).
3. Install the head restraints. Refer to «Head Restraint Replacement - Rear No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system)
4. Install the rear seat back panel. Refer to «Seat Back Panel Replacement - Rear Seat No. 2»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .
5. Install the seat in the vehicle. Refer to «Seat Replacement - Rear No. 2 - Folding»(/cadillac/srx/i-2003-2009/remont/seats/#seat-system) .

Power Seats System Description and Operation (Front Seat)

The driver and passenger power seat systems each consist of the following components

1. Seat Adjuster Switch
2. Seat Horizontal Motor
3. Seat Front Vertical Motor
4. Seat Rear Vertical Motor
5. Seat Recline Motor
6. SEATS Circuit Breaker 30 A

Seat Adjuster Switch

The seat adjuster switches provide both power and ground to the selected seat motors. Battery positive voltage is supplied at all times to the driver and passenger seat adjuster switches from the SEATS Circuit Breaker located in the left rear fuse block. Both seat adjuster switches are grounded through the switch ground circuit and G307.

Motors

All of the seat motors operate independently of each other. Each motor contains an electronic circuit breaker (PTC) that opens in the event of a circuit overload and will reset only after voltage has been removed from the circuit. There are four seat position motors. These are the horizontal motor, front vertical motor, rear vertical motor, and the seat back recline motor. The horizontal motor moves the entire seat forward and rearward. The seat vertical motors may operate independently to tilt the front or rear of the seat cushion up or down. Both motors can also run simultaneously to move the entire seat up or down. The recline motor moves the angle of the seat back forward or rearward.

Horizontal

When the seat switch is operated to move the entire seat forward, battery positive voltage is applied through the switch contacts and the horizontal motor forward control circuit to the motor. The motor is grounded through the horizontal motor rearward switch contacts and the horizontal motor rearward control circuit to the motor. The motor runs in order to drive the entire seat forward until the switch is released. Moving the entire seat rearward works similarly to moving the entire seat forward, except that battery positive voltage and ground are applied on opposite circuits causing the motor to run in the opposite direction.

Rear Vertical

When the seat switch is operated to tilt the rear of the seat cushion up, battery positive voltage is applied through the switch contacts and the rear vertical motor up control circuit to the rear vertical motor. The motor is grounded through the down switch contacts and the rear vertical motor down control circuit to the motor. The motor runs in order to drive the rear of the seat cushion up until the switch is released. Tilting the rear of the seat cushion down works similarly to tilting the rear of the seat cushion up, except that battery positive voltage and ground are applied on opposite circuits causing the motor to run in the opposite direction.

Front Vertical

When the seat switch is operated to tilt the front of the seat cushion up, battery positive voltage is applied through the switch contacts and the front vertical motor up control circuit to the motor. The motor is grounded through the down switch contacts and the front vertical motor down control circuit to the motor. The motor runs in order to drive the front of the seat cushion up until the switch is released. Tilting the front of the seat cushion down works similarly to tilting the front of the seat cushion up, except that battery positive voltage and ground are applied on opposite circuits causing the motor to run in the opposite direction.

Entire Seat Up or Down

When the seat switch is operated in order to move the entire seat to the up position, battery positive voltage is simultaneously applied through the front and rear vertical motor up switch contacts and the front and rear vertical motor up control circuits to both vertical motors. The motors are grounded through the down switch contacts and the front and rear vertical motor down control circuits to both vertical motors. Both motors run simultaneously in order to drive the entire seat up until the switch is released. Moving the entire seat down works similarly to moving the entire seat up, except that battery positive voltage and ground are applied on the opposite circuits causing the motors to run in the opposite direction.

Recline

When the seat recline switch is operated to move the seat back forward, battery positive voltage is applied through the switch contacts and the recline motor forward control circuit to the motor. The motor is grounded through the rearward switch contacts and the recline motor rearward control circuit to the motor. The motor runs in order to move the seat back forward until the switch is released. Moving the seat back rearward works similarly to moving the seat back forward, except that battery positive voltage and ground are applied on the opposite circuits causing the motor to run in the opposite direction.

Power Seats System Description and Operation (Folding Seat)

The power folding seat system consists of the following components

1. Folding Seat Front Stow Switch
2. Folding Seat Rear Stow Switch
3. Folding Seat Recline Switch
4. Rear Seat Module (RSM)
5. Rear Seat Horizontal Motor
6. Rear Seat Back Rotation Motor
7. Rear Seat Recline Motor
8. Rear Seat Horizontal Position Sensor
9. Rear Seat Back Rotation Position Sensor
10. Rear Seat Recline Position Sensor
11. Rear Seat Back Panel Position Switch
12. Rear Seat Load Floor Position Switch
13. FFSM Fuse 30 A
14. FFS SW Fuse 10 A

The Class 2 serial data subsystem is also part of the power folding seat system.

Conditions for Seat Operation and Class 2 Communications

The RSM must receive Class 2 messages indicating that the following conditions have been met prior to seat operation or a chime will sound and the RSM will inhibit operation

1. The gear selector must be in the PARK position.
2. The ignition can be in any power mode except CRANKING.
3. Either the lift gate or the right rear door must be OPEN.
4. The RSM must be enabled by pressing the UNLOCK button on either the remote keyless entry transmitter or the driver/passenger door lock switch three times within 5 seconds, or by placing the ignition in the ON or ACCESSORY position.

Enabling the RSM using the remote keyless entry transmitter or the driver/passenger door lock switch unlock sequence allows for the system to operate for two minutes before timing out. The RSM will restart the timing procedure each time the recline or stow switch is pressed. After the two minute time period expires, the RSM will discontinue operation until another keyless entry or door unlock sequence takes place. Enabling the RSM by placing the ignition in either the ON or ACCESSORY positions allows for continuous operation of the folding seat system without the time out feature.

The following conditions must also be met before the RSM will allow seat operation

1. The folding seat back panel must be in the folded position.
2. The RSM must be calibrated.
3. Both headrests must be removed.
4. The battery must have a sufficient charge.

If seat operation is attempted while the RSM is in the disabled mode an audible chime message will be activated signaling that one of the above conditions has not been met.

To verify that the RSM is calibrated, install a scan tool and observe the Calibrated parameter in the Rear Seat Module data list, the parameter should display Yes. If the RSM is not calibrated refer to Power Folding Seat Calibration .

Rear Seat Switches

There are three push button switches that are used to operate the power folding seat; front stow switch, rear stow switch, and recline switch. The front stow switch is located in the right rear quarter trim panel just behind the second row seat. The rear stow and recline switches are located in the right rear trim panel just inside the liftgate. Battery positive voltage is supplied at all times to all three switches from the FFS SW Fuse located in the left rear fuse block. The folding seat will operate only in a supervised mode, i.e. press and hold the selected switch button through the entire cycle of operation, or release the switch when the desired seat position is reached. When any folding seat switch is pressed, it sends a 12 volt signal through the switch signal circuit to the RSM. The RSM then commands the appropriate seat motors to move in response to the switch signal.

Rear Seat Module and Power and Ground

The rear seat module controls the position of the third row seat. When commanded it moves the seat from the seated position to the stowed position, or, from the stowed position to the seated position. With the seat in the seated position, the RSM can also move the angle of the seat back forward or rearward.

Battery positive voltage is supplied at all times to the module through the battery positive voltage circuit and the FFSM fuse located in the left rear fuse block. This voltage is used to power up the RSM and also to apply power to the seat motors when commanded. The RSM is grounded through the module ground circuit and G401.

The power folding rear seat has three reversible DC motors. These are the seat horizontal motor, the 180 degree rotation motor, and the recline motor. The horizontal motor moves the entire seat forward or rearward, the rotation motor rotates the seat back 180 degrees, and the recline motor moves the seat back forward or rearward. Each motor contains an electronic circuit breaker (PTC) that opens in the event of a circuit overload and will reset only after voltage has been removed from the circuit.

In order to decrease the stress on each motor, the RSM provides each seat motor with a soft stop that will actually stop the motor before the physical end of travel. Each motor uses a hall effect sensor to determine the position of the seat and the end of travel limits. Module self-calibration is used to determine hard stop limits during the initial power up and every tenth activation thereafter. The soft stop limits are a calibrated count from the determined hard stops.

Position Sensors

The seat position sensors are 2 wire hall effect sensors which are an internal part of each motor. The RSM supplies a separate 12 volt reference through the signal circuits to each position sensor, and a common ground through the sensor low reference circuit to each seat position sensor. During seat operation, while the seat motor is active, the position sensor provides the RSM with a single feedback pulse through the signal circuit for every rotation of the motor shaft. The RSM counts the feedback pulses from each sensor to determine the seat position, and the end of travel limits for each of the seat motors.

Seat Operation

With the seat in the seated position, and when a stow switch is pressed, battery positive voltage is applied through the switch contacts and the switch signal circuit to the RSM. In response to this signal, the RSM simultaneously applies battery positive voltage through the seat back rotation motor forward control circuit and the seat horizontal motor forward control circuit to the seat motors. The motors are grounded through the respective motor rearward control circuits. The rotation motor runs to rotate the seat back 180 degrees forward and the seat horizontal motor runs to drive the seat cushion forward until it reaches it's hard stop. After seat back rotation and seat horizontal movements are complete, the RSM then applies battery positive voltage through the recline motor rearward control circuit to the recline motor. The motor is grounded through the recline motor forward control circuit. The motor runs to recline the seat back rearward to the stow position. Moving the seat to the seated position works similarly to moving the seat to the stowed position, except battery positive voltage is applied to the opposite control circuits causing the motors to run in the opposite direction.

There are two limit switches that are involved with seat operation; load floor position switch and seat back panel position switch. Battery positive voltage is applied at all times to the switches through their respective supply voltage circuits from the RSM. The following describes how the RSM uses these limit switches during seat operation

1. The load floor switch is located in the back panel of the folding rear seat. When the back panel is placed in the folded position the load floor switch is closed. Battery positive voltage is then applied through the switch contacts and the load floor switch signal circuit to the RSM, and seat operation is allowed. In this position the Load Floor Switch scan tool parameter will display Inactive. After the power folding rear seat is moved from the seated to the stowed position, the seat back panel is then manually unfolded and deployed over the seat cushion. With the back panel unfolded and deployed over the seat cushion, the load floor switch is now open, the Load Floor Switch scan tool parameter will display Active, and the RSM will not allow seat operation.
2. The back panel position switch is located in the lower left corner of the folding rear seat back panel. When the seat back is in either the seated position or in the stowed position the switch is closed, battery positive voltage is applied through the switch contacts and the seat back position switch signal circuit to the RSM indicating that the switch is active. The RSM uses this switch input for the following purposes: To determine the soft stop limits of the recline motor when the seat is in the stowed position. To determine the soft stop limits for the seat back rotation motor when the back is in the seated position. To determine the starting point of the seat back with the seat in the seated position. Once the seat back starts to rotate, the seat back position switch contacts open to signal the RSM the initial starting point of the seat back. The RSM then begins to count the sensor pulses in order to set the seat back rotation travel distance.

Seat Operation Sequencing

The following describes the sequence of seat movement from the seated position to the stowed position

1. Start of 180 degree forward rotation of seat back.
2. The seat back reclines forward to the upright position.
3. Seat cushion moves forward to it's soft stop limit.
4. Seat back reclines rearward to the stowed position.
5. Manually unfold and deploy the seat back panel over the seat cushion.

The following describes the sequence of seat movement from the stowed position to the seated position

1. Manually retract and fold the seat back panel to the folded position.
2. The seat back reclines forward to the upright position.
3. The seat back rotates 180 degrees rearward.
4. The seat back reclines rearward to it's seated position.
5. The seat cushion moves rearward to it's seated position.

Lumbar Support Components

The driver and passenger seat lumbar support systems each consist of the following components

1. Lumbar Switch
2. Lumbar Horizontal Motor
3. SEATS Circuit Breaker 30 A

Power Lumbar Switch

The power lumbar switches provide both power and ground to the lumbar motor. Battery positive voltage is supplied at all times to the driver and passenger seat lumbar switch from the SEATS Circuit Breaker located in the left rear fuse block. Both lumbar switches are grounded through the switch ground circuit and G 307.

Lumbar Motor

The lumbar support system consists of one motor that moves the lumbar support horizontally forward or rearward. The motor contains an electronic circuit breaker (PTC) that opens in the event of a circuit overload and will reset only after voltage has been removed from the circuit.

Lumbar Operation

When the lumbar switch is operated to move the lumbar support forward, battery positive voltage is applied through the switch contacts and the lumbar motor forward control circuit to the motor. The motor is grounded through the lumbar rearward switch contacts and the lumbar motor rearward control circuit to the motor. The motor runs to drive the lumbar support forward toward the occupant's back until the switch is released. Moving the lumbar support rearward works similarly to moving the lumbar support forward, except that battery positive voltage and ground are applied on opposite circuits causing the motor to run in the opposite direction.

The driver seat lumbar support system with memory (A45) consists of the following components

1. Lumbar Switch
2. Memory Seat Module (MSM)
3. Lumbar Horizontal Motor
4. Lumbar Horizontal Position Sensor
5. SEATS Fuse 10 A

Lumbar Switch

Battery positive voltage is supplied at all times to the driver seat lumbar switch from the SEATS Fuse located in the left rear fuse block. When the lumbar switches are pressed they send a 12 volt signal to the MSM. The MSM then commands the lumbar motor to move in response to the switch signals.

The lumbar support system consists of one motor that moves the lumbar support horizontally forward or rearward. The motor contains a electronic circuit breaker (PTC) that opens in the event of a circuit overload and will reset only after voltage has been removed from the circuit. The memory seat module provides the motor with a soft stop that will actually stop the motor just before its physical end-of-travel. This decreases the stress on the motor. If the motor reaches it's end-of-travel due a soft stop and the switch is released and pressed again, the lumbar support will move short distance farther to it's physical travel limit.

When the lumbar switch is operated to move the lumbar support forward, battery positive voltage is applied through the switch contacts and the driver seat lumbar forward switch signal circuit to the MSM. In response to this signal, the MSM applies battery positive voltage through the lumbar motor forward control circuit and ground through the lumbar motor rearward control circuit to the motor. The motor runs to drive the lumbar support forward toward the occupant's back until the switch is released. Moving the lumbar support rearward works similarly to moving the lumbar support forward, except that battery positive voltage and ground are applied on the opposite circuits causing the motor to run in the opposite direction. The MSM also controls the lumbar horizontal motor during memory recall functions.

The lumbar position sensor is a potentiometer which is attached directly to the lumbar motor. The MSM supplies a 5 volt reference voltage through the 5 volt reference circuit and ground through the low reference circuit to the lumbar position sensor. When the lumbar motor rotates, the resistance of the potentiometer varies changing the feedback voltage of the position sensor signal circuit. This voltage varies from 0.25-4.75 volts. The MSM monitors this voltage signal to determine the lumbar position.

When a memory set command is received, the MSM records the lumbar position by storing the feedback voltage from the position sensor. Then, when a memory recall command is received, the MSM moves the motor until the position sensor feedback voltage equals the feedback voltage stored in memory. The lumbar support is not involved in the easy exit function.

Memory Functions

Refer to Memory Seats Description and Operation .

Heated Seats Description and Operation

The driver and front passenger heated seats each consist of the following components.

1. Heated Seat Switch
2. Heated Seat Module
3. Seat Cushion Heater Element
4. Seat Back Heater Element
5. Temperature Sensor
6. Climate Control Panel (CCP)
7. Rear Integration Module (RIM)
8. LF FRT HTD SEAT MOD 10 A
9. RF FRT HTD SEAT MOD 10 A

Power and Ground

Battery positive voltage is supplied to both front heated seat modules from the rear fuse block IGN 3 Fuse. This voltage is used to power up the heated seat modules allowing the heated seats to operate only when the ignition switch is in the ON position. Battery positive voltage is also supplied at all times to the left front heated seat module from the LF FRT HTD SEAT MOD fuse located in the left rear fuse block and to the right front heated seat module from the RF FRT HTD SEAT MOD fuse located in the right rear fuse block. This voltage is used by the modules to supply power to the seat heating elements. Both modules are grounded through the module ground circuits and G307.

Heated Seat Operation

The driver and passenger heated seats are controlled by separate heated seat switches. Both switches are located in the CCP. When a heated seat switch is pressed, the CCP sends a class 2 message via the serial data line to the rear RIM indicating the heated seat command. In response to this signal, the RIM momentarily sends a 35 millisecond one shot pulse signal that is pulled low through the heated seat high/low signal circuit to the heated seat module. The heated seat module then applies or removes battery positive voltage through the element supply voltage circuit of the seat heating elements. The RIM then sends a class 2 message back to the CCP to either illuminate or turn off the appropriate temperature indicator.

Temperature Regulation

When the ignition is turned to the ON position, the heated seats will initialize in the OFF state. With each activation of the heated seat switch, the heated seat module will cycle the temperature setting in the following manner: HIGH, LOW, and OFF.

The heated seat system is designed in order to warm the seat cushion and seat back to approximately 42°C (107.6°F) when in the high heat position, and 37°C (98.6°F) when in the low heat position. The heated seat module monitors the seat temperature through the temperature sensor signal circuit and the temperature sensor (thermistor) that is located in the seat cushion. The temperature sensor is a variable resistor, it's resistance changes as the temperature of the seat changes. When the temperature sensor resistance indicates to the heated seat module that the seat has reached the desired temperature, the module opens the ground path of the seat heating elements through the heated seat element control circuit. The module will then cycle the element control circuit open and closed in order to maintain the desired temperature.

Load Management

The ON/OFF status of the heated seats is reported to the RIM through the status output signal circuit of each heated seat module. During Heated Seats Load Shed Level 1, and the RIM recognizes that the heated seat status signal is active, it will cycle the heated seat operation 16.0 seconds ON and 4.0 seconds OFF. During Heated Seats Load Shed Level 2, the RIM will signal the heated seat module to cancel the heated seat operation and send a class 2 message to the CCP to turn off the appropriate heated seat temperature indicators.

Memory Seats Description and Operation

The memory seat system consists of the following components

1. Seat Adjuster Switch
2. Memory Seat Module (MSM)
3. Seat Horizontal Motor
4. Seat Front Vertical Motor
5. Seat Rear Vertical Motor
6. Seat Recline Motor
7. Seat Horizontal Position Sensor
8. Seat Front Vertical Position Sensor
9. Seat Rear Vertical Position Sensor
10. Seat Recline Position Sensor
11. Memory Function Switch
12. Driver Door Switch Assembly (DDSA)
13. Driver Door Module (DDM)
14. SEATS Circuit Breaker 30 A
15. SEATS Fuse 10 A

Personalization - Driver Information Center (DIC)

Personalization in the Setup menu of the driver information center (DIC) must be in the active state for memory seats to operate. A check mark appearing after the word Personalization on the display screen indicates that the feature is active. For more detailed information concerning programming of Personalization and other memory recall features controlled through the DIC, refer to Driver Personalization in Personalization

Personalization Option - Dash Integration Module (DIM)

The memory seat module cannot perform memory recall functions unless the Personalization Option is activated. The personalization option is located in the DIM. The DIM reports the personalization option setting to the MSM, as well as other receiving modules via a class 2 message each time the ignition switch is cycled to the ON position. The MSM will then store the personalization option setting and examine it before making a memory seat adjustment. The personalization option setting stored within the MSM will not change until the personalization option setting in the DIM is changed and the ignition switch is cycled to the ON position.

Battery positive voltage is supplied at all times to the seat adjuster switch from the SEATS Fuse located in the left rear fuse block. When the seat switches are pressed they send a 12 volt signal to the MSM. The MSM commands the selected seat motors to move in response to the switch signal.

MSM Power and Ground

Battery positive voltage is supplied at all times to the memory seat module through the battery positive voltage circuit from the SEATS Circuit Breaker located in the left rear fuse block. This voltage is used to power up MSM and also to apply power to the seat motors when commanded. Battery positive voltage is also supplied to the MSM from the SEATS Fuse that also supplies voltage to the seat adjuster switch. The MSM monitors this voltage circuit in order to determine if battery voltage is supplied to the seat adjuster switch. The MSM is grounded through the module ground circuit and G307.

Seat Motors

The MSM controls the movement of each of the above mentioned seat directional motors. All of the seat motors operate independently of each other. Each motor contains a electronic circuit breaker (PTC), that opens in the event of a circuit overload and will reset only after voltage has been removed from the circuit.

There are 4 motors that move the position of the seat. These are the seat horizontal motor, front vertical motor, rear vertical motor, and the recline motor. The horizontal motor moves the entire seat forward and rearward. The seat vertical motors may operate independently to tilt the front or rear of the seat cushion up or down. Both vertical motors can also run simultaneously to move the entire seat up or down. The recline motor moves the angle of the seat back forward or rearward.

All motors are reversible. For example, when the seat switch is operated to moved the entire seat forward, battery positive voltage is applied through the horizontal forward switch contacts and the power seat horizontal forward switch signal circuit to the MSM. In response to this signal, the MSM applies battery positive voltage through the driver seat horizontal motor forward control circuit to the horizontal motor. The MSM supplies ground to the motor through the driver seat horizontal motor rearward control circuit. The motor runs to drive the entire seat forward until the switch is released. Moving the entire seat rearward works similarly to moving the entire seat forward, except that battery positive voltage and ground are applied on the opposite circuits causing the motor to run in the opposite direction. All other seat motors are also powered this way.

The MSM provides each seat motor with a soft stop. The module will actually stop the motor just before the physical end-of-travel for that motor. This decreases the stress on each motor. If a motor reaches the end-of-travel due a soft stop and the seat switch is released and then activated again, the seat will move a short distance farther to it's physical travel limit.

The seat position sensors are potentiometers which are either attached directly to the motor's transmission cable or are an internal part of the motor. The MSM supplies a 5 volt reference voltage through the 5 volt reference circuit and ground through the low reference circuit to the respective seat position sensors. When the motor or cable rotates, the resistance of the potentiometer varies changing the feedback voltage of the position sensor signal circuit. This voltage varies from 0.25 volts to 4.75 volts. The MSM monitors this voltage signal to determine the position of the seat.

When a memory set command is received, the MSM records the seat position by storing the feedback voltage from each position sensor. Then, when a memory recall command is received, the MSM moves the motors until the position sensor feedback voltages equals the feedback voltages stored in memory.

When a memory function switch is pressed, the associated signal circuit of the DDSA is momentarily grounded. In response to this signal, the DDSA then sends a message via the simple bus interface to the DDM indicating that a memory function signal has been received. The DDM then sends the message to the MSM via class 2 serial data line.

The current seat position may be recorded for 2 different drivers. To record a position, adjust the drivers seat to a comfortable position, then press and hold button 1 for 5 seconds, a double beep will sound each time a memory position is set. A second seat position may be programmed by repeating the above steps and pressing button 2. When the MSM receives a memory set message, the MSM records the feedback voltages from all four seat position sensors for the appropriate driver. The easy exit position is programmed by moving the seat to the desired exit position and then holding the exit button for 5 seconds. Two easy exit positions can be programmed, one for each driver. When the MSM receives a set exit message, the MSM records the feedback voltages from all four seat position sensors for the appropriate driver.

When the memory recall 1 or 2 button is pressed, a single chime is sounded through the radio in order to acknowledge the signal and the MSM receives the memory recall message. In response to this message, the MSM applies battery positive voltage to run the seat motors until the position sensor feedback voltages equal the feedback voltages stored in memory for the appropriate driver. When the EXIT button is pressed, a single chime is sounded in order to acknowledge the signal and the MSM receives the easy exit message. In response to this message, the MSM applies battery positive voltage to run the seat motors until the position sensor feedback voltages equal the feedback voltages stored in memory for the appropriate driver.

Memory recall will not work if the shift lever is out of NEUTRAL (N) or PARK (P).

Recall Personalization

When a keyless entry transmitter is used in order to unlock the vehicle doors, the transmitter sends a signal to the diversity antenna module. The module interprets the signal, then communicates the unlock command and which driver performed the command via a class 2 message over the serial data line to the appropriate modules and the MSM. The MSM will then recall any previously programed personalization easy exit or memory seat positions. For more information concerning the programing of the personalization feature refer to Driver Personalization in Personalization.

Memory Inhibit/Enable

The memory seat module receives the ignition switch signal and the gear selector position via class 2 messages. When the ignition switch is in the OFF position, memory record, memory recall, personalization recall, and exit recall functions are all allowed. When the ignition switch is in the ON position and the gear selector is in the PARK position, only the recall personalization function is deactivated and all other memory functions are allowed. When the ignition switch is in the ON position and the gear selector is out of the PARK position, only memory record is allowed, all other memory seat functions are not allowed.

See also:
• Diagnostic System Check - Vehicle
• Testing for Intermittent Conditions and Poor Connections
• Circuit Testing
• Wiring Repairs
• Connector Repairs
• Control Module References
• Battery Negative Cable Disconnect/Connect Procedure
• Power Door Systems Connector End Views
• Front Door Switch Replacement
• Checking Aftermarket Accessories
• Diagnostic Trouble Code (DTC) List - Vehicle
• Courtesy Lamps Inoperative
• Rear Hatch/Gate Ajar Indicator Inoperative
• Driver Personalization
• Computer/Integrating Systems Connector End Views
• SIR Caution
• SIR Disabling and Enabling Zone 7
• Fastener Notice
• Seat Belt Replacement - Front
• Adjustable Pedal Calibration
• HVAC Control Module Replacement
• Trim Panel Replacement - Body Side Rear (w/o TB5)
• DTC B1336
• Symptoms - Seats
• Power Folding Seat Calibration
• Power Seats System Description and Operation (Front Seat)
• Heated Seats Description and Operation
• Memory Seats Description and Operation
• Power Seat Inoperative (w/o A45)
• Lumbar Support Inoperative (w/o A45)
• Heated Seat Always On
• Heated Seat Temperature Adjustment Inoperative
• Seat Back Heater Element Replacement - Front
• Seat Cushion Heater Element Replacement - Front
• Memory Seat Calibration Procedure
• Fastener Tightening Specifications