Parking Brake System: Adjustments

Parking Brake Adjustment

Special Tools

CH-21177-A - Drum To Brake Shoe Clearance Gauge

For equivalent regional tools, refer to Special Tools Tools and Equipment.

1. Adjustments to the parking brake shoes are not necessary after replacing the electronic parking brake control module or parking brake cable.

2. Disable the parking brake cable adjuster. Refer to Parking Brake Cable Adjuster Disabling Parking Brake Cable Adjuster Disabling.

3. Verify that the parking brake releases completely.

4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.

5. Remove the rear tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation Service and Repair.

Note: Do not operate the electronic parking brake with the rear disc brake rotor(s) removed.

6. Remove the rear brake rotors. Refer to Rear Brake Rotor Replacement (J64) Rear Brake Rotor Replacement (J64)Rear Brake Rotor Replacement (J55) Rear Brake Rotor Replacement (J55).




7. Set the CH-21177-A - drum to brake shoe clearance gauge inside of the parking brake drum at the widest point.

* Place the contacts of the tool at the widest point of the parking brake drum portion of the rotor (1).

* Tighten the set screw on the tool to ensure the proper measurement when removing the tool from the drum.




8. Position the CH-21177-A - drum to brake shoe clearance gauge over the parking brake shoes (1) at the widest point.

9. Turn the parking brake shoe adjuster until the parking brake shoes just contact the CH-21177-A - drum to brake shoe clearance gauge.

10. Repeat steps 7 through 9 for the opposite side.

11. Install the rear brake rotors. Refer to Rear Brake Rotor Replacement (J64) Rear Brake Rotor Replacement (J64)Rear Brake Rotor Replacement (J55) Rear Brake Rotor Replacement (J55).

12. Install the rear tire and wheel. Refer to Tire and Wheel Removal and Installation Service and Repair.

13. Lower the vehicle to curb height.

14. Enable the parking brake cable adjuster. Refer to Parking Brake Cable Adjuster Enabling Parking Brake Cable Adjuster Enabling.

Note: If the rear wheels rotate during the following test, readjust the parking brake shoes.

15. Apply the parking brake. Inspect the rotation of the rear wheels:

* The wheels should not rotate forward.

* The wheels should not rotate rearward.

16. Release the parking brake. Verify that the wheels rotate freely.

17. Lower the vehicle.