Parking Brake Adjustment
Special Tools
CH-21177-A Drum To Brake Shoe Clearance Gauge
For equivalent regional tools, refer to Special Tools .
- Adjustments to the parking brake shoes are not necessary after replacing the electronic parking brake control module or parking brake cable.
- Disable the parking brake cable adjuster. Refer to Parking Brake Cable Adjuster Disabling .
- Verify that the parking brake releases completely.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Remove the rear tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation .
- Remove the rear brake rotors. Refer to Rear Brake Rotor Replacement .
- 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.
- Position the CH-21177-A drum to brake shoe clearance gauge over the parking brake shoes (1) at the widest point.
- Turn the parking brake shoe adjuster until the parking brake shoes just contact the CH-21177-A drum to brake shoe clearance gauge.
- Repeat steps 7 through 9 for the opposite side.
- Install the rear brake rotors. Refer to Rear Brake Rotor Replacement .
- Install the rear tire and wheel. Refer to Tire and Wheel Removal and Installation .
- Lower the vehicle to curb height.
- Enable the parking brake cable adjuster. Refer to Parking Brake Cable Adjuster Enabling .
- Apply the parking brake. Inspect the rotation of the rear wheels:
- The wheels should not rotate forward.
- The wheels should not rotate rearward.
- Release the parking brake. Verify that the wheels rotate freely.
- Lower the vehicle.
NOTE:
Do not operate the electronic parking brake with the rear disc brake rotor(s) removed.
NOTE:
If the rear wheels rotate during the following test, readjust the parking brake shoes.