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Parking Brake System Chevrolet Impala IX

Parking Brake System 2 illustrations ~3036 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Park Brake Cable Bracket Bolt14 N.m124 lb in
Park Brake Pedal Assembly Nut25 N.m18 lb ft
Park Brake Warning Lamp Switch Bolt3 N.m26 lb in

Symptoms - Park Brake

IMPORTANTReview the system operation in order to familiarize yourself with the system functions.

Visual/Physical Inspection

  1. Inspect for aftermarket devices which could affect the operation of the park brake system.
  2. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Symptom List

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

Park Brake Will Not Hold or Release

StepActionYesNo
1Were you sent here from the Park Brake Symptom table?Go to Step 2Go to Symptoms - Park Brake
2Inspect the park brake system for proper operation. Refer to Park Brake System Diagnosis . Did you find and correct a condition?Go to Step 5Go to Step 3
3Inspect the disc brake system for proper operation. Refer to Disc Brake System Diagnosis . Did you find and correct a condition?Go to Step 5Go to Step 4
4Inspect the hydraulic brake system for proper operation. Refer to Hydraulic Brake System Diagnosis . Did you find and correct a condition?Go to Step 5Go to Symptoms - Park Brake
5Road test the vehicle in order to confirm proper operation. Refer to Brake System Vehicle Road Test . Is the condition still present?Go to Step 2System OK

Park Brake System Diagnosis

StepActionYesNo
DEFINITION: This diagnostic table is designed to diagnose ONLY the components of the PARK brake system in order to determine if the PARK brake system is operating properly. You will be directed by the appropriate Symptom table to go to other brake system diagnostic tables as appropriate.
1Were you sent here from a Hydraulic Brake Symptom table?Go to Step 4Go to Step 2
2Were you sent here from a Park Brake Symptom table?Go to Step 4Go to Step 3
3Is the symptom related to the ability of the park brake system to hold and/or release?Go to Symptoms - Park BrakeGo to Symptoms - Hydraulic Brakes
4Raise and support the vehicle with the rear axle supported by jack stands. Refer to Lifting and Jacking the Vehicle . With the park brake RELEASED, attempt to rotate the rear wheels to check the rear brakes for a significant amount of drag. Do the rear brakes have a significant amount of drag?Go to Step 9Go to Step 5
5Apply the park brake. Attempt to rotate the rear wheels to check the rear brakes for a significant amount of drag. Do the rear brakes have a significant amount of drag?Go to Step 19Go to Step 6
6Visually inspect the park brake cable connections and the cables that are accessible on the UNDERSIDE of the vehicle for disconnections and/or damage. Were any of the park brake cables disconnected and/or damaged?Go to Step 7Go to Step 8
7Reconnect or replace the park brake cables as necessary. Refer to the following procedures as necessary: Parking Brake Front Cable Replacement Parking Brake Rear Cable Replacement (Z7U) Did you complete the repair and/or replacement?Go to Step 19
8Check the adjustment of the park brake and adjust if necessary. Refer to Parking Brake Adjustment . Did you find and correct the condition?Go to Step 19Go to Step 9
9CAUTION: Do not depress the brake pedal with the brake rotors and/or the brake drums removed, or with the brake calipers repositioned away from the brake rotors, or damage to the brake system may result. Remove the rear brake rotors. Refer to Rear Brake Rotor Replacement . Inspect the park brake shoe hardware for looseness, damaged, broken or missing components. Check the park brake actuators for a seized condition. Does the park brake hardware and/or the park brake actuators require replacement?Go to Step 10Go to Step 11
10Replace park brake hardware components as necessary. Refer to Parking Brake Shoe Replacement . Replace the park brake actuators as necessary. Refer to Parking Brake Actuator Replacement . Did you complete the replacement?Go to Step 19
11Have an assistant apply and release the park brake, while you observe the park brake cables for free movement. Did the park brake cables move freely?Go to Step 12Go to Step 14
12Check the adjustment of the park brake and adjust if necessary. Refer to Parking Brake Adjustment . Did you find and correct the condition?Go to Step 19Go to Step 13
13Apply the park brake. Attempt to rotate the rear wheels to check the rear brakes for a significant amount of drag. Release the park brake. Rotate the rear wheels to check the rear brakes for a significant reduction of drag. Did the park brake apply and release properly?Go to Step 19Go to Symptoms - Park Brake
14Disconnect the park brake cable connections that are accessible on the UNDERSIDE of the vehicle one at a time and check each cable for free movement. Do any of the park brake cables accessible on the underside of the vehicle require replacement?Go to Step 15Go to Step 16
15Replace any of the park brake cables that do not have free movement - not releasing properly. Refer to the following procedures as necessary: Parking Brake Front Cable Replacement Parking Brake Rear Cable Replacement (Z7U) Did you complete the replacement?Go to Step 19
16Disconnect the front park brake cable connection accessible INSIDE the vehicle at the park brake pedal assembly and check for free movement. Replace the front park brake cable if it does not have free movement. Refer to Parking Brake Front Cable Replacement . Did you find and correct a condition?Go to Step 19Go to Step 17
17Inspect the park brake pedal assembly for proper operation and replace the park brake pedal assembly as necessary. Refer to Parking Brake Lever Pedal Assembly Replacement . Did you find and correct a condition?Go to Step 19Go to Step 18
18Replace the component that is used to adjust the park brake system. Refer to Parking Brake Cable Equalizer Replacement . Adjust the park brake. Refer to Parking Brake Adjustment . Did you complete the replacement and adjustment?Go to Step 19Go to Symptoms - Park Brake
19Install or connect any components that were removed or disconnected during diagnosis. Verify the operation of the park brake system. Does the park brake operate correctly?System OKGo to Symptoms - Park Brake
CAUTION
Do not depress the brake pedal with the brake rotors and/or the brake drums removed, or with the brake calipers repositioned away from the brake rotors, or damage to the brake system may result.

Parking Brake Shoe Inspection

  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  2. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  3. Remove the rear brake caliper bracket with the rear brake caliper. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  4. Remove the rear brake rotor. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  5. Inspect the park brake shoe and lining. If it exhibits any of the following conditions, then it requires replacement : Excessive wear indicated by the park brake lining being worn down to the shoe Brake lining cracking Oil or fluid contamination of the brake lining
  6. Install the rear brake rotor. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  7. Install the rear brake caliper with the rear brake caliper bracket. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  8. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  9. Lower the vehicle.

Removal Procedure

WARNINGRefer to Brake Dust Warning .
WARNINGRefer to Brake Fluid Irritant Warning .
  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  2. Remove the rear tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  3. Relieve the park brake system tension at the equalizer assembly.
  4. Remove the rear caliper bracket. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  5. Remove the rear rotor. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  6. Disconnect and remove the rear park brake cable from the bracket at the rear wheel. Refer to «Parking Brake Rear Cable Replacement (Z7U)»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  7. Disconnect the park brake cable return spring from the park brake actuator and bracket at the rear wheel.
  8. Remove the rear hub. Refer to «Rear Wheel Bearing and Hub Replacement»(/chevrolet/impala/ix-2006-2016/remont/suspension-rear/#rear-suspension-system) . The rear hub, backing plate, park brake cable bracket, and park brake actuator will be removed as an assembly.
  9. Remove the 2 retainers (9) and the park brake cable bracket (8) from the park brake actuator (4). Position the rear hub aside.
  10. Remove the park brake shoe and actuator (4) from the backing plate (7).
  11. Separate the park brake shoe from the actuator.

Installation Procedure

  1. Assemble the park brake shoe to the actuator (4).
  2. Install the park brake shoe and actuator (4) onto the backing plate (7).
  3. Position the park brake shoe, actuator (4), and backing plate (7) over the rear hub. CAUTION: Refer to «Fastener Caution»(/chevrolet/impala/ix-2006-2016/remont/oem-general-information/#dangers-warnings-and-cautions__fastener-caution) .
  4. Install the park brake cable bracket (8) and the 2 retainers (9). Tighten: Tighten the bracket retainers to 14 N.m (124 lb in).
  5. Install the rear hub. Refer to «Rear Wheel Bearing and Hub Replacement»(/chevrolet/impala/ix-2006-2016/remont/suspension-rear/#rear-suspension-system) . The rear hub, backing plate, park brake cable bracket, and park brake actuator will be installed as an assembly.
  6. Install and connect the rear park brake cable to the bracket at the rear wheel.
  7. Connect the park brake cable return spring to the park brake actuator and bracket at the rear wheel.
  8. Install the rear rotor. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  9. Install the rear caliper bracket. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  10. Install the rear tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  11. Adjust the park brake system. Refer to «Parking Brake Adjustment»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  12. Lower the vehicle.

Special Tools

J 37043 Parking Brake Cable Release Tool. See Special Tools .

  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  2. Relieve the cable tension at the park brake equalizer.
  3. Disconnect the front cable from the connector (2).
  4. Lower the vehicle.
  5. Remove the left side closeout/insulator panel. Refer to «Instrument Panel Insulator Panel Replacement - Left Side»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#instrument-panel-trim-and-console-trim) .
  6. Remove the left side front carpet retainers. Refer to «Center Pillar Lower Trim Panel Replacement»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#interior-trim-and-interior-paneling) .
  7. Disconnect the electrical connector at the park brake switch.
  8. Remove the 3 park brake pedal assembly retraining nuts from the body mounting studs.
  9. Remove the retaining clip and disconnect the cable button from the clevis.
  10. Use the J 37043 to release and remove cable from the bracket on the pedal assembly. See «Special Tools»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  11. Remove the park brake pedal assembly.
  1. Install the park brake assembly onto the body mounting studs.
  2. Install the 3 park brake pedal assembly retaining nuts. Tighten: Tighten the nuts to 25 N.m (18 lb ft).
  3. Install the front park brake cable into the bracket on the park brake pedal assembly.
  4. Insert the cable button into the clevis and install the retaining clip.
  5. Connect the electrical connector to the park brake switch.
  6. Reposition the carpeting properly.
  7. Install the left side carpet retainers and the lower center pillar trim panel on the left side. Refer to «Center Pillar Lower Trim Panel Replacement»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#interior-trim-and-interior-paneling) .
  8. Install the left side closeout/insulator panel. Refer to «Instrument Panel Insulator Panel Replacement - Left Side»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#instrument-panel-trim-and-console-trim) .
  9. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  10. Install the front park brake cable through the park brake cable guides.
  11. Connect the front park brake cable (1) to the rear cable (3) at the connector clip (2).
  12. Tighten the nut on the equalizer in order to remove slack in the cable.
  13. Lower the vehicle.
  1. Remove the left side instrument panel insulator.
  2. Remove the left carpet retainers. Refer to «Front Side Door Opening Floor Carpet Retainer Replacement (Impala)»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#floor-coverings-and-headlinings) .
  3. Disconnect the electrical connector from the switch.
  4. Remove the mounting screw.
  5. Remove the parking brake indicator switch (1).
  1. Install the parking brake indicator switch (1).
  2. Install the mounting screw. Tighten: Tighten the mounting screw to 3 N.m (26 lb in).
  3. Connect the electrical connector to the switch. Check the operation of the switch.
  4. Install the left carpet retainers. Refer to «Front Side Door Opening Floor Carpet Retainer Replacement (Impala)»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#floor-coverings-and-headlinings) .
  5. Install the left side instrument panel insulator.

Tools Required

J 37043 Parking Brake Cable Release Tool. See Special Tools .

  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  2. Relieve the cable tension at the park brake equalizer.
  3. Disconnect the front cable from the connector (2).
  4. Remove the front cable from the equalizer.
  5. Remove the front cable from the cable guides.
  6. Lower the vehicle.
  7. Remove the left side closeout/insulator panel. Refer to «Instrument Panel Insulator Panel Replacement - Left Side»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#instrument-panel-trim-and-console-trim) .
  8. Remove the lower center pillar panel on the left side and the left side carpet retainers. Refer to «Center Pillar Lower Trim Panel Replacement»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#interior-trim-and-interior-paneling) .
  9. Fold back the carpeting in order to gain access to the front park brake cable.
  10. Remove the retaining clip and disconnect the cable from the clevis.
  11. Use the J 37043 to release the retainer holding cable to the bracket on the pedal assembly. See «Special Tools»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  12. Remove the front cable from the vehicle. Note routing of the cable for installation.
  1. Install the front cable into the vehicle as noted in the removal procedure.
  2. Install the front park brake cable into the bracket on the park brake pedal assembly.
  3. Insert the cable button end into the clevis and install the retaining clip.
  4. Reposition the carpeting properly.
  5. Install the left side carpet retainers and the lower center pillar trim panel on the left side. Refer to «Center Pillar Lower Trim Panel Replacement»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#interior-trim-and-interior-paneling) .
  6. Install the left side closeout/insulator panel. Refer to «Instrument Panel Insulator Panel Replacement - Left Side»(/chevrolet/impala/ix-2006-2016/remont/exteriorinterior-trim/#instrument-panel-trim-and-console-trim) .
  7. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  8. Install the front park brake cable through the park brake cable guides.
  9. Install the front park brake cable into the equalizer.
  10. Connect the front park brake cable (1) to the rear cable (3) at the connector clip (2).
  11. Tighten the nut on the equalizer (2) in order to remove slack in the cable.
  12. Lower the vehicle.

J 37043 Parking Brake Cable Release Tool. See Special Tools .

WARNINGRefer to Brake Fluid Irritant Warning .

Scheme 1

Scheme 1
Scheme 1
  1. Raise and suitably support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  2. Relieve the park brake cable tension at the equalizer.
  3. Disconnect the front cable from the rear cable that is to be replaced. For the right rear cable, disconnect the cable (3) from the clip (2). For the left rear cable, fully remove the equalizer nut from the equalizer stud, which is part of the left rear cable.
  4. Disconnect the retainer (1) that holds the cable to the support bracket. Use the J 37043 to release the retainer. See «Special Tools»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  5. Disconnect the park brake cable from the actuator lever.
  6. Remove cable retaining pin from the support bracket and remove the park brake cable.
  1. Position the park brake cable into the support bracket and install the cable retaining pin.
  2. Install the park brake cable to the actuator lever.
  3. Connect the retainer (1) that holds the cable to the support bracket.
  4. Connect the rear cable to the front cable. For the right rear cable, connect the cable (3) to the clip (2). For the left rear cable, install the equalizer stud to the equalizer nut, which is part of the equalizer assembly.
  5. Adjust the park brake. Refer to «Parking Brake Adjustment»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  6. Lower the vehicle.
  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  2. Disconnect the left rear park brake cable and adjustment stud assembly from the equalizer assembly by removing the equalizer nut from the adjustment stud.
  3. Disconnect the front park brake cable (1) from the right rear cable (3) at the connector clip (2).
  4. Remove the equalizer assembly from the front park brake cable. Insert a flat-bladed tool into the equalizer and lightly twist to reposition the equalizer retaining tab. This will release the assembly from the cable.
  1. Install the equalizer assembly to the front park brake cable.
  2. Connect the front brake cable (1) to the right rear cable (3) at the connector clip (2).
  3. Connect the left rear brake cable and adjustment stud assembly to the equalizer assembly by installing the adjustment stud to the equalizer nut.
  4. Adjust the Park Brake System. Refer to «Parking Brake Adjustment»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  5. Lower the vehicle.
  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  2. Remove the rear tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  3. Relieve the park brake system tension at the equalizer assembly.
  4. Remove the rear caliper bracket. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  5. Remove the rear rotor. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  6. Disconnect and remove the rear park brake cable from the bracket at the rear wheel. Refer to «Parking Brake Rear Cable Replacement (Z7U)»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  7. Disconnect the park brake cable return spring from the park brake actuator and bracket at the rear wheel.
  8. Remove the rear hub. Refer to «Rear Wheel Bearing and Hub Replacement»(/chevrolet/impala/ix-2006-2016/remont/suspension-rear/#rear-suspension-system) . The rear hub, backing plate, park brake cable bracket, and park brake actuator will be removed as an assembly.
  9. Remove the 2 retainers (9) and the park brake cable bracket (8) from the park brake actuator (4). Position the rear hub aside.
  10. Remove the park brake shoe and actuator (4) from the backing plate (7).
  11. Separate the actuator (4) from the park brake shoe.
  1. Assemble the actuator (4) to the park brake shoe.
  2. Install the park brake shoe and actuator (4) onto the backing plate (7).
  3. Position the park brake shoe, actuator (4), and backing plate (7) over the rear hub. CAUTION: Refer to «Fastener Caution»(/chevrolet/impala/ix-2006-2016/remont/oem-general-information/#dangers-warnings-and-cautions__fastener-caution) .
  4. Install the park brake cable bracket (8) and the 2 retainers (9) Tighten: Tighten the bracket retainers to 14 N.m (124 lb in).
  5. Install the rear hub. Refer to «Rear Wheel Bearing and Hub Replacement»(/chevrolet/impala/ix-2006-2016/remont/suspension-rear/#rear-suspension-system) . The rear hub, backing plate, park brake cable bracket, and park brake actuator will be installed as an assembly.
  6. Install and connect the rear park brake cable to the bracket at the rear wheel. Refer to «Parking Brake Rear Cable Replacement (Z7U)»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  7. Connect the park brake cable return spring to the park brake actuator and bracket at the rear wheel.
  8. Install the rear rotor. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  9. Install the rear caliper bracket. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  10. Install the rear tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  11. Adjust the park brake system. Refer to «Parking Brake Adjustment»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  12. Lower the vehicle.
WARNINGRefer to Brake Dust Warning .
WARNINGRefer to Brake Fluid Irritant Warning .
  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  2. Remove the rear wheels and tires. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  3. Relieve the park brake system tension at the equalizer assembly.
  4. Remove the rear caliper bracket. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  5. Remove the rear rotor. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  6. Disconnect and remove the rear park brake cable from the bracket at the rear wheel. Refer to «Parking Brake Rear Cable Replacement (Z7U)»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  7. Disconnect the park brake cable return spring from the park brake actuator and bracket at the rear wheel.
  8. Remove the rear hub. Refer to «Rear Wheel Bearing and Hub Replacement»(/chevrolet/impala/ix-2006-2016/remont/suspension-rear/#rear-suspension-system) . The rear hub, support, park brake cable bracket, and park brake actuator will be removed as an assembly.
  9. Remove the 2 retainers (9) and the park brake cable bracket (8) from the park brake actuator (4). Position aside the rear hub.
  10. Remove the park brake shoe and actuator (4) from the support (7).
  1. Install the park brake shoe and actuator (4) onto the support (7).
  2. Position the park brake shoe, actuator (4), and support (7) over the rear hub.
  3. Install the park brake cable bracket (8) and the 2 retainers (9).
  4. Install the rear hub. Refer to «Rear Wheel Bearing and Hub Replacement»(/chevrolet/impala/ix-2006-2016/remont/suspension-rear/#rear-suspension-system) . The rear hub, support, park brake cable bracket, and park brake actuator will be installed as an assembly.
  5. Install and connect the rear park brake cable to the bracket at the rear wheel. Refer to «Parking Brake Rear Cable Replacement (Z7U)»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  6. Connect the park brake cable return spring to the park brake actuator and bracket at the rear wheel.
  7. Install the rear rotor. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  8. Install the rear caliper bracket. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  9. Install the rear wheels and tires. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  10. Adjust the park brake at the equalizer. Refer to «Parking Brake Adjustment»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  11. Lower the vehicle.

J 21177-A Drum-to-Brake Shoe Clearance Gauge. See Special Tools .

WARNINGRefer to Brake Dust Warning .
WARNINGRefer to Brake Fluid Irritant Warning .
  1. Apply and fully release the parking brake 6 times.
  2. Verify that the parking brake pedal releases completely. Turn ON the ignition. Verify that the BRAKE indicator lamp is off. If the BRAKE indicator lamp is on, ensure that the parking brake pedal is in release mode and fully returned to stop. Remove the slack in the front parking brake cable by pulling downward on the cable.
  3. Raise and suitably support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/impala/ix-2006-2016/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
  4. Remove the rear tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  5. Remove both rear caliper brackets. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  6. Relieve tension on the park brake system at the park brake equalizer.
  7. Remove both rear brake rotors. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  8. Set the J 21177-A inside of the park brake drum (1) at the widest point. See «Special Tools»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) . Place the contacts on the tool to the widest point of the drum. Tighten the set screw on the tool to ensure the proper measurement when removing the tool from the drum.
  9. Position the J 21177-A over the park brake shoe (1) at the widest point. See «Special Tools»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  10. Turn the adjuster on the actuator until the park brake shoe just contacts the J 21177-A . See «Special Tools»(/chevrolet/impala/ix-2006-2016/remont/parking-brake-system/#parking-brake-system) .
  11. Repeat steps 8-10 for the opposite side.
  12. Install both rear brake rotors. Refer to «Rear Brake Rotor Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  13. Install both rear caliper brackets. Refer to «Rear Brake Caliper Bracket Replacement»(/chevrolet/impala/ix-2006-2016/remont/mechanical-hydraulic/#disc-brake-system) .
  14. Install the rear tire and wheel assemblies. Refer to «Tire and Wheel Removal and Installation»(/chevrolet/impala/ix-2006-2016/remont/wheel-tire-system/#tires-and-wheels) .
  15. Adjust the parking brake by turning the nut at the equalizer (2) while spinning both rear wheels. When either rear wheel starts to drag, back off the nut one full turn.
  16. Lower the vehicle to curb height.
  17. Apply the parking brake, then inspect for rotation of the rear wheels. If the rear wheels rotate during this inspection, then readjust the parking brake shoes.
  18. Release the parking brake. Verify that the wheels rotate freely.
  19. Lower the vehicle.

System Component Description

The park brake system consists of the following

System Operation

Park brake apply input force is received by the park brake pedal assembly being depressed, transferred and evenly distributed, through the park brake cables and the park brake cable equalizer, to the left and right park brake apply levers. The park brake apply levers multiply and transfer the apply input force to the park brake actuators which expand the park brake shoe toward the friction surface of the drum-in-hat portion of the rear brake rotor in order to prevent the rotation of the rear tire and wheel assemblies. The park brake pedal assembly releases an applied park brake system when it is depressed again.

Illustration Tool Number/ Description J 21177-A Drum-to-Brake Shoe Clearance Gauge J 37043 Parking Brake Cable Release Tool

Scheme 2

Scheme 2: Special Tools
Scheme 2: Special Tools