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Seat Belt System Chevrolet Chevy Express G1500

Restraints Control Systems 3 illustrations ~3644 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Center Seat Belt Retractor Bolts52 N.m38 lb ft
Center Seat Belt Retractor Trim Cover Bolt1.5 N.m13 lb in
Seat Belts and Buckles to the Seat Frame Bolts40 N.m30 lb ft
Seat Belt Guide to the Vehicle Bolt52 N.m38 lb ft
Seat Belt Height Adjuster to the Vehicle Bolts26 N.m19 lb ft
Shoulder/Seat Belt Retractor to the Vehicle Lower Bolt (8 mm bolt)10 N.m89 lb in
Shoulder/Seat Belt Retractor to the Vehicle Upper Bolt (12 mm bolt)52 N.m38 lb ft

Fastener Tightening Specifications

Seat Belt Schematic Icons

Seat Belt Schematic Icons Icon Icon Definition CAUTION: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Refer to SIR Disabling and Enabling Zones. Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs

Scheme 1

Scheme 1: Seat Belt Schematics
Scheme 1: Seat Belt Schematics

Scheme 2

Scheme 2: Seat Belt Component Views
Scheme 2: Seat Belt Component Views
CalloutComponent Name
1Seat Belt Switch - LF
2Inflatable Restraint Seat Position Sensor (SPS) Connector - Left (Light Duty)
3C307
4Seat Adjuster Switch - Driver (AG1)
5Seat Adjuster Switch Connector - Driver (AG1)
6Seat Motors Connector - Driver (AG1)
7S304 (AG1)
8Seat Motor - Forward/Rearward (AG1)
9Seat Motor - Front Tilt (AG1)
10Seat Motor - Rear Tilt (AG1)
11Inflatable Restraint Seat Position Sensor (SPS) - Left (Light Duty)

Seat Belt Connector End Views

Seat Belt Switch - LF Connector Part Information 12047663 2-Way M Metri-Pack 150 Series (BK) Pin Wire Color Circuit No. Function A BK 450 Ground B TN/WH 238 Left Seat Belt Switch Signal

Diagnostic Starting Point - Seat Belts

Begin the system diagnosis by reviewing the Seat Belt System Description and Operation . Reviewing the Description and Operation will help identify the correct symptom diagnostic procedure when a malfunction exists. The Description and Operation will also assist in determining if the condition described by the customer is normal system operation. Refer to Symptoms - Seat Belts in order to identify the correct procedure for diagnosing the system and where the procedure is located.

Operational and Functional Checks

IMPORTANTIf the vehicle has been in a collision, refer to Repairs and Inspections Required After a Collision for additional information.

Perform the following inspection from the driver seat

  1. Turn the ignition switch to the ON position. Verify proper operation of the seat belt reminder lamp with the belt buckled and with the belt unbuckled.
  2. Inspect the shoulder belt guide in order to ensure that the following conditions are met: The shoulder belt guide swivels freely. The seat belt webbing is seated flat in the guide slot. The seat belt webbing does not bind.
  3. Verify that the seat belt buckle faces inboard and is accessible.
  4. Verify that the seat belt retractor units are securely attached.
  5. Verify that the seat belt anchor bolts are secure.
  6. Fully extend the seat belt webbing. Verify that the seat belt webbing does not have any twists or tears.
  7. Allow the seat belt webbing to retract. Verify that the seat belt webbing returns freely and completely back into the retractor.
  8. Snap the seat belt latch plate into the buckle.
  9. Sharply tug on the seat belt latch plate and the buckle. Verify that the seat belt latch plate and the buckle remain locked when tugged.
  10. Push the button on the buckle. Verify that the seat belt latch plate releases easily from the buckle. Verify that the button returns to its original position.

Perform the following inspection procedure from the passenger seat.

  1. Verify the Automatic Locking Retractor (ALR) feature operates properly by performing the following checks. Pull the seat belt all the way out of the retractor until it stops. Slowly allow the belt to retract partially, while listening for a ratcheting sound. Sharply tug on the belt ensuring that the retractor lock sets and does not allow the belt to be pulled from the retractor. After performing steps 1.1 through 1.3 ensure the belt fully retracts.
  2. Repeat the inspection procedure steps 2 through 10 from the passengers seat.

Perform the following steps in order to inspect the center seat belts

  1. Verify that the center seat belts are accessible.
  2. Verify that the center seat belts have no twists or tears in the webbing.
  3. Snap the center seat belt latch plate into the buckle.
  4. Sharply tug on the seat belt latch plate and the buckle. Verify that the seat belt latch plate and the buckle remain locked when tugged.
  5. Push the button on the buckle. Verify that the seat belt latch plate releases easily from the buckle. Verify that the button returns to its original position.

Repeat the inspection procedure, steps 2-10, from the rear seats.

Repeat the center seat belt inspection procedure, steps 1-5, from the rear seat.

Emergency Locking Retractors

CAUTIONPerform this test in an area clear of other vehicles or obstructions. Do not conduct this test on the open road. A large, empty parking lot is suitable. Failure to observe this precaution may result in damage to the vehicle and possible personal injury.

Scheme 3

Scheme 3
Scheme 3
  1. Fasten the seat belts, an assistant is needed when the retractor under test is not part of the driver seat belt.
  2. Accelerate the vehicle slowly to 16 km/h (10 mph) and apply the brakes firmly.
  3. Verify that the seat belt locks when braking firmly.
  4. If the belt does not lock, proceed with the following steps. IMPORTANT: When performing this check, note the position that the retractors are mounted. Some retractors are not mounted at a zero degree inclination. Remove the seat belt retractor assembly. Tilt the seat belt retractor slowly. Ensure that the seat belt webbing can be pulled from the retractor at an inclination of 15 degrees forward or less, from the retractors mounted position. Ensure the retractor cannot be pulled from the retractor at an inclination of 45 degrees forward or more. If a seat belt retractor does not operate as described, replace the retractor assembly.

Symptoms - Seat Belts

IMPORTANTReview the Seat Belt System Description and Operation in order to familiarize yourself with the system functions. Refer to Seat Belt System Description and Operation .

Visual/Physical Inspection

  1. Inspect for aftermarket devices which could affect the operation of the Seat Belt System. Refer to «Checking Aftermarket Accessories»(/chevrolet/chevy-express-g1500/1996-2012/remont/body-electrical/#wiring-systems-diagnostic-information-and-procedures__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.

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 Seat Belt Indicator Circuit Malfunction in order to diagnose the symptom.

Seat Belt Indicator Circuit Malfunction

StepActionYesNo
Schematic Reference: Seat Belt Schematics Connector End View Reference: Seat Belt Connector End Views
1Did you review the Diagnostic Starting Point - Seat Belts?Go to Step 2Go to Diagnostic Starting Point - Seat Belts
2Turn ON the ignition, with the engine OFF. Observe the seat belt indicator while buckling and unbuckling the driver seat belt. Does the seat belt indicator operate normally?Go to Testing for Intermittent Conditions and Poor Connections in Wiring SystemsGo to Step 3
3Install a scan tool. Buckle the driver's seat belt. With a scan tool, observe the Driver Side Belt Status parameter located in the SIR scan tool data list. Does the scan tool indicate that the seat belt is buckled?Go to Step 4Go to Step 5
4Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement in Instrument Panel, Gages and Console. Did you complete the replacement?Go to Step 8
5Turn OFF the ignition. Test the seat belt switch - left - signal circuit for an open, high resistance, or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?Go to Step 8Go to Step 6
6Test the low reference circuit of the seat belt switch - driver for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?Go to Step 8Go to Step 7
7Replace the seat belt switch - driver. Refer to Seat Belt Buckle Replacement - Front . Did you complete the replacement?Go to Step 8
8Operate the system in order to verify the repair. Did you correct the condition?System OKGo to Step 2

Seat Belt Indicator Circuit Malfunction

Seat Belt Service Precautions

  1. Do not bleach or dye the seat belt webbing. Clean the seat belt webbing only with a mild soap and water solution and a soft brush or cloth.
  2. Keep sharp edges and damaging objects away from the seat belts. Avoid bending or damaging any part of the seat belt buckle or latch plate.
  3. Replace any seat belts which are cut or damaged in any way.
  4. Use only correct seat belt anchor bolts and screws. Tighten the bolts and the screws to the correct torque value. Refer to «Fastener Tightening Specifications»(/chevrolet/chevy-express-g1500/1996-2012/remont/restraints-control-systems/#seat-belt-system__fastener-tightening-specifications) . When installing the seat belt anchor bolts, start the bolt by hand in order to ensure that the bolt is threaded straight.
  5. Some seat belts and retractors must be serviced as a set with service replacement parts only. Do not attempt to make repairs to the individual components which are only serviced as a set.
  6. Verify that the replacement part number is correct for the vehicle at that seating position. Do not substitute a seat belt from a different seating position.

Repairs and Inspections Required After a Collision

CAUTIONRestraint systems can be damaged in a collision. To help avoid injury and ensure that all parts in need of replacement are replaced: Replace any seat belt system that was in use during the collision serious enough to deploy any automatic restraint device such as air bags and seat belt pretensioners. This not only includes seat belt systems in use by people of adult size, but seat belt systems used to secure child restraints, infant carriers and booster seats, including LATCH system and top tether anchorages. Replace any seat belt system that has torn, worn, or damaged components. This not only includes adult seat belt systems, but built-in child restraints and LATCH system components, if any. Replace any seat belt system if you observe the words "REPLACE" or "CAUTION", or if a yellow tag is visible. Do not replace a seat belt if only the child seat caution label is visible. Replace any seat belt system if you are doubtful about its condition. This not only includes adult seat belt systems, but built-in child restraints, LATCH system components, and any restraint system used to secure infant carriers, child restraints, and booster seats. Do NOT replace single seat belt system components in vehicles that have been in a collision as described above. Always replace the entire seat belt system with the buckle, guide and retractor assembly, which includes the latch and webbing material.

After a minor collision where no automatic restraint device was deployed, seat belt system replacement may not be necessary, unless some of the parts are torn, worn, or damaged.

Removal Procedure

  1. Lift the buckle cover.
  2. Remove the seat belt buckle retaining bolt from the seat.
  3. Disconnect the electrical connector from the seat belt buckle, if equipped.
  4. Remove the seat belt buckle from the seat.

Installation Procedure

  1. Install the seat belt buckle to the seat.
  2. Connect the electrical connector to the seat belt buckle, if equipped.
  3. Lift the buckle cover.
  4. Install the seat belt buckle retaining bolt to the seat. Tighten: Tighten the seat belt buckle retaining bolt to 52 N.m (38 lb ft).
  1. Partially remove the seat cushion cover in order to gain access to the seat belt buckle retaining bolt.
  2. Remove the seat belt buckle retaining bolt from the seat frame.
  3. Remove the seat belt buckle from the seat frame.
  1. Install the seat belt buckle to the seat frame.
  2. Install the seat belt buckle retaining bolt to the seat frame. Tighten: Tighten the seat belt buckle retaining bolt to 40 N.m (30 lb ft).
  3. Install the seat cushion cover to the seat frame.
  1. Partially remove the seat cushion cover in order to gain access to the seat belt/buckle retaining bolt.
  2. Remove the seat belt/buckle retaining bolt from the seat frame.
  3. Remove the seat belt/buckle from the seat frame.
  1. Install the seat belt/buckle to the seat frame.
  2. Install the seat belt/buckle retaining bolt to the seat frame. Tighten: Tighten the seat belt/buckle retaining bolt to 52 N.m (38 lb ft).
  3. Install the seat cushion cover to the seat frame.
  1. Using a flat bladed tool, remove the shoulder/seat belt guide to the guide trim cover (1).
  2. Remove the bolt retaining the shoulder/seat belt guide to the guide adjuster.
  3. Remove the shoulder/seat belt guide from the guide adjuster.
  4. Remove the front door upper pillar garnish molding. Refer to «Garnish Molding Replacement - Upper Pillar»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  5. Remove the shoulder/seat belt guide adjuster retaining bolts from the pillar.
  6. Remove the shoulder/seat belt guide adjuster from the vehicle.
  1. Install the shoulder/seat belt guide adjuster to the vehicle.
  2. Install the shoulder/seat belt guide adjuster retaining bolts to the pillar. Tighten: Tighten the shoulder/seat belt guide adjuster retaining bolts to 26 N.m (19 lb ft).
  3. Install the shoulder/seat belt guide to the guide adjuster.
  4. Install the shoulder/seat belt guide retaining bolt to the guide adjuster. Tighten: Tighten the shoulder/seat belt guide retaining bolt to 52 N.m (38 lb ft).
  5. Install the front door upper pillar garnish molding. Refer to «Garnish Molding Replacement - Upper Pillar»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  6. Install the shoulder/seat belt guide to the guide adjuster cover (1).
  1. Using a flat bladed tool, remove the shoulder/seat belt guide adjuster cover (1).
  2. Remove the shoulder/seat belt guide retaining bolt from the shoulder belt guide adjuster.
  3. Remove the shoulder/seat belt guide from the shoulder belt guide adjuster.
  4. Remove the front door upper pillar garnish molding. Refer to «Garnish Molding Replacement - Upper Pillar»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  5. Remove the front door lower pillar garnish molding. Refer to «Garnish Molding Replacement - Lower Pillar»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  6. Disengage the front seat belt retractor guide (4) from the pillar.
  7. Remove the shoulder/seat belt retractor bolt (2) from the lower pillar.
  8. Remove the shoulder/seat belt retractor (1) assembly from the vehicle.
  1. Install the shoulder/seat belt retractor assembly to the vehicle.
  2. Install the shoulder/seat belt retractor retaining bolt to the lower pillar. Tighten: Tighten the shoulder/seat belt retractor retaining bolt to 52 N.m (38 lb ft).
  3. Install the front door lower pillar garnish molding. Refer to «Garnish Molding Replacement - Lower Pillar»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  4. Install the front door upper pillar garnish molding. Refer to «Garnish Molding Replacement - Upper Pillar»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  5. Install the shoulder/seat belt guide to the shoulder belt guide adjuster.
  6. Install the upper shoulder/seat belt guide retaining bolt to the vehicle. Tighten: Tighten the upper shoulder/seat belt guide retaining bolt to 10 N.m (89 lb in).
  7. Install the shoulder/seat belt guide to the guide adjuster cover (1).
  1. Remove the center seat belt retractor seat belt opening trim (1).
  2. Remove the center seat belt retractor trim cover bolt (1).
  3. Remove the center seat belt retractor trim cover (2).
  4. Carefully pull the rear seat back trim down enough to expose the center seat belt retractor bolt.
  5. Remove the seat belt center retractor bolt.
  6. Slide the center seat belt retractor up and out of the key hole slots on the seat back frame.
  7. Partially remove the seat cushion cover (1) in order to gain access to the center seat belt retractor lower bolt (2).
  8. Remove the center seat belt retractor lower bolt (2).
  9. Remove the center seat belt retractor assembly from the vehicle.
  1. Install the center seat belt lower belt (3) to the seat cushion frame.
  2. Install the center seat belt retractor lower bolt (2). Tighten: Tighten the center seat belt retractor lower bolt (2) to 52 N.m (38 lb ft).
  3. Install the seat cushion cover (1).
  4. Slide the center seat belt retractor into key hole slots in the seat back frame.
  5. Carefully pull the rear seat back trim down enough to expose the center seat belt retractor bolt hole.
  6. Install the center seat belt retractor bolt. Tighten: Tighten the center seat belt retractor upper bolt to 52 N.m (38 lb ft).
  7. Install the center seat belt retractor trim cover (2).
  8. Install the center seat belt retractor trim cover bolt (1). Tighten: Tighten the center seat belt retractor trim cover bolt to 1.5 N.m (13 lb in).
  9. Install the center seat belt retractor seat belt opening trim (1).
  1. Remove the seat belt upper trim cover retainers (2).
  2. Remove the seat belt upper trim cover (1)
  3. Remove the upper seat belt guide retaining bolt from the seat belt guide.
  4. Remove the upper seat belt guide from the vehicle.
  5. Remove the body side trim panel. Refer to «Trim Panel Replacement - Left Body Side»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  6. Remove the seat belt retractor retaining bolt from the vehicle.
  7. Remove the seat belt retractor from the vehicle.
  1. Install the seat belt retractor to the vehicle.
  2. Install the seat belt retractor retaining bolt to the vehicle. Tighten: Tighten the seat belt retractor retaining bolt to 52 N.m (38 lb ft).
  3. Install the seat belt guide to the vehicle.
  4. Install the seat belt guide retaining bolt to the vehicle. Tighten: Tighten the seat belt guide retaining bolt to 52 N.m (38 lb ft).
  5. Install the body side trim panel. Refer to «Trim Panel Replacement - Left Body Side»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  6. Install the seat belt upper trim cover retainers (2).
  7. Install the seat belt upper trim cover (1).
  1. Remove the upper seat belt trim cover.
  2. Remove the body side trim panel. Refer to «Trim Panel Replacement - Right Body Side»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  3. Remove the upper seat belt guide retaining bolt from the seat belt guide.
  4. Remove the upper seat belt guide from the vehicle.
  5. Remove the seat belt retractor retaining bolt from the vehicle.
  6. Remove the seat belt retractor from the vehicle.
  1. Install the seat belt retractor to the vehicle.
  2. Install the seat belt retractor retaining bolt to the vehicle. Tighten: Tighten the seat belt retractor retaining bolt to 52 N.m (38 lb ft).
  3. Install the seat belt guide to the vehicle.
  4. Install the seat belt guide retaining bolt to the vehicle. Tighten: Tighten the seat belt guide retaining bolt to 52 N.m (38 lb ft).
  5. Install the body side trim panel. Refer to «Trim Panel Replacement - Right Body Side»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  6. Install the upper seat belt trim cover.
  1. Remove the seat belt upper trim cover retainers (2).
  2. Remove the seat belt upper trim cover (1).
  3. Remove the upper seat belt guide retaining bolt from the seat belt guide.
  4. Remove the upper seat belt guide from the vehicle.
  5. Remove the body side trim panel. Refer to «Trim Panel Replacement - Left Body Side»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  6. Remove the seat belt retractor retaining bolt from the vehicle.
  7. Remove the seat belt retractor from the vehicle.
  1. Install the seat belt retractor to the vehicle.
  2. Install the seat belt retractor retaining bolt to the vehicle. Tighten: Tighten the seat belt retractor retaining bolt to 52 N.m (38 lb ft).
  3. Install the seat belt guide to the vehicle.
  4. Install the seat belt guide retaining bolt to the vehicle. Tighten: Tighten the seat belt guide retaining bolt to 52 N.m (38 lb ft).
  5. Install the body side trim panel. Refer to «Trim Panel Replacement - Left Body Side»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  6. Install the seat belt upper trim cover retainers (2).
  7. Install the seat belt upper trim cover (1).
  1. Remove the upper seat belt trim cover retainers (2).
  2. Remove the seat belt trim cover (1)
  3. Remove the upper seat belt guide retaining bolt from the seat belt guide.
  4. Remove the upper seat belt guide from the vehicle.
  5. Remove the body side trim panel. Refer to «Trim Panel Replacement - Right Body Side»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  6. Remove the seat belt retractor retaining bolt from the vehicle.
  7. Remove the seat belt retractor from the vehicle.
  1. Install the seat belt retractor to the vehicle.
  2. Install the seat belt retractor retaining bolt to the vehicle. Tighten: Tighten the seat belt retractor retaining bolt to 52 N.m (38 lb ft).
  3. Install the seat belt guide to the vehicle.
  4. Install the seat belt guide retaining bolt to the vehicle. Tighten: Tighten the seat belt guide retaining bolt to 52 N.m (38 lb ft).
  5. Install the body side trim panel. Refer to «Trim Panel Replacement - Right Body Side»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  6. Install the upper seat belt trim cover (1).
  7. Install the upper seat belt trim cover retainers (2).
  1. Remove the seat belt escutcheon from the rear corner garnish molding.
  2. Remove the rear corner garnish molding. Refer to «Garnish Molding Replacement - Rear Corner»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  3. Remove the seat belt retractor retaining bolts from the seat belt retractor.
  4. Remove the seat belt retractor from the vehicle.
  1. Install the seat belt retractor to the vehicle.
  2. Install the seat belt retractor retaining bolts to the vehicle. Tighten: Tighten the seat belt retractor upper retaining bolt to 52 N.m (38 lb ft). Tighten the seat belt retractor lower retaining bolt to 10 N.m (89 lb in).
  3. Install the rear corner garnish molding. Refer to «Garnish Molding Replacement - Rear Corner»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  4. Secure the seat belt escutcheon to the rear corner garnish molding.
  1. Remove the seat belt escutcheon from the rear corner garnish molding.
  2. Remove the rear corner garnish molding. Refer to «Garnish Molding Replacement - Rear Corner»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  3. Remove the seat belt retractor retaining bolts from the seat belt retractor.
  4. Remove the seat belt retractor from the vehicle.
  1. Install the seat belt retractor to the vehicle.
  2. Install the seat belt retractor retaining bolts to the vehicle. Tighten: Tighten the seat belt retractor upper retaining bolt to 52 N.m (38 lb ft). Tighten the seat belt retractor lower retaining bolt to 10 N.m (89 lb in).
  3. Install the rear corner garnish molding. Refer to «Garnish Molding Replacement - Rear Corner»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  4. Secure the seat belt escutcheon to the rear corner garnish molding.
  1. Remove the rear corner garnish molding. Refer to «Garnish Molding Replacement - Rear Corner»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  2. Remove the seat belt retractor bolts (1) from the seat belt retractor.
  3. Remove the seat belt retractor from the vehicle.
  1. Install the seat belt retractor to the vehicle.
  2. Install the seat belt retractor bolts (1) to the vehicle. Tighten: Tighten the seat belt retractor bolt to 52 N.m (38 lb ft).
  3. Install the rear corner garnish molding. Refer to «Garnish Molding Replacement - Rear Corner»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  1. Remove the rear corner garnish molding. Refer to «Garnish Molding Replacement - Rear Corner»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
  2. Remove the seat belt retractor bolts (1).
  3. Remove the seat belt retractor from the vehicle.
  1. Install the seat belt retractor to the vehicle.
  2. Install the seat belt retractor bolts (1). Tighten: Tighten the seat belt retractor bolt to 52 N.m (38 lb ft).
  3. Install the rear corner garnish molding. Refer to «Garnish Molding Replacement - Rear Corner»(/chevrolet/chevy-express-g1500/1996-2012/remont/exteriorinterior-trim/#interior-trim) in Interior Trim.
CAUTIONTo help avoid personal injury from unrepaired crash damage to a restraint system, perform the seat belt check for each seat belt system. Replace the seat belt system if there is any doubt about the condition of system components.
  1. The front seat belt system consists of a driver and passenger seat belt retractor and buckle.
  2. The driver's seat belt has a seat belt switch mounted within the seat belt buckle. The seat belt switch communicates the status of the seat belt to the inflatable restraint sensing and diagnostic module (SDM). The SDM communicates the status of the seat belt to the instrument panel cluster (IPC) which controls a seat belt indicator and an audio alarm. When the driver's seat belt is buckled with the LF door closed and the ignition switch in the ON position, the following events occur: The audio alarm will not operate. The seat belt indicator will not operate.
  3. When the driver's seat belt is not buckled with the LF door closed and the ignition switch in the RUN position, the following events will occur: The audio alarm will operate for 4 to 8 seconds and then turn OFF. The seat belt indicator will operate for 20 seconds or until the driver's seat belt is buckled. The seat belt indicator will flash for an additional 55 seconds before turning OFF. To further diagnose a failure of the seat belt indicator, refer to «Symptoms - Seat Belts»(/chevrolet/chevy-express-g1500/1996-2012/remont/restraints-control-systems/#seat-belt-system__symptoms-seat-belts) or the audio alarm, refer to «Symptoms - Instrument Panel, Gages and Console»(/chevrolet/chevy-express-g1500/1996-2012/remont/gauges-instrument-panels/#instrument-panel-system-displays-gauges-and-console__symptoms-instrument-panel-gages-and) in Instrument Panel, Gages and Console.

Child Seat Restraint System

CAUTIONA child in a rear-facing child restraint can be seriously injured if the right-front passengers air bag inflates. This is because the back of a rear-facing child restraint would be very close to the inflating air bag. NEVER use a rear-facing child restraint in this vehicle. If a forward-facing child restraint is suitable for your child, ALWAYS move the front passenger seat as far back as it will go and then install the child restraint. Be sure the child restraint position does not conflict with any additional requirements provided by the manufacturer. For more information, refer to the vehicle owners manual and the instruction that came with the child restraint.

The child seat may only be used in a forward facing seating location. The child seat should be installed and secured according to the manufacturer's directions. If the child seat has a top strap it will need to be anchored.

All vehicles are equipped with a dual-mode type retractor with emergency and automatic locking features. The automatic locking feature is for restraint of a child seat. The child seat can be secured by pulling the seat belt all the way out to lock it. Then, tighten the seat belt around the child seat.

If a child seat is to be used in the second seat position, a special dealer-installed anchor must be used to anchor the child seat top strap. (This only applies to the seats designed with the top strap provision and for the vehicles sold in Canada). In order to assure the correct top strap angle, the child seat is only to be used at the seating position for witch the top strap anchor is installed.

Fasten Safety Belt Indicator

The fasten safety belt indicator may only be illuminated during RUN. The instrument panel cluster (IPC) illuminates the fasten safety belt indicator under the following conditions

  1. During bulb check.
  2. The inflatable restraint sensing and diagnostic module (SDM) sends the status of the driver seat belt switch to the IPC via a class 2 message. If the driver's seat belt is unfastened, the IPC will illuminate the fasten safety belt indicator for 72 seconds or until the driver's seat belt is fastened. If the driver's seat belt is unfastened within 8 seconds following the bulb check, the IPC will send a class 2 serial message requesting 5 chimes to sound.