Brake Pad & Rotor Burnishing
Burnishing the brake pads and brake rotors is necessary in order to ensure that the braking surfaces are properly prepared after service has been performed on the disc brake system.
This procedure should be performed whenever the disc brake rotors have been refinished or replaced, and/or whenever the disc brake pads have been replaced.
- Select a smooth road with little or no traffic.
- Accelerate the vehicle to 48 km/h (30 mph).
Using moderate to firm pressure, apply the brakes to bring the vehicle to a stop. Do not allow the brakes to lock.
NOTEUse care to avoid overheating the brakes while performing this step.
- Using moderate to firm pressure, apply the brakes to bring the vehicle to a stop. Do not allow the brakes to lock.
- Repeat steps 2 and 3 until approximately 20 stops have been completed. Allow sufficient cooling periods between stops in order to properly burnish the brake pads and rotors
Removal & Installation
- Before servicing the vehicle, refer to the Precautions Section.
- Raise and support the vehicle.
- Remove the tire and wheel.
- Lower brake caliper guide pin bolt.
- Rotate the brake caliper up and forward until it rests on the brake caliper mounting bracket. The brake hose does not have to be removed from the brake caliper.
- Remove the brake pads.
- Remove the brake pad springs.
- Remove about half of the fluid from the master cylinder.
- Using an appropriate tool, force the caliper piston back into the caliper.
- Installation is the reverse of removal procedure.
Please take note of the following tightening specifications:
Tighten the caliper bolt to 20 ft. lbs. (27 Nm).
Apply brake lubricant to the front caliper guide pins ensuring adequate lubrication to both pin areas of the front brake caliper bracket with GM P/N 22688644 or equivalent.
NOTEDO NOT reuse the old brake pad springs if replacing the brake pads, use new springs.
- Gradually apply pressure to the brake pedal until a firm pedal is felt. If a firm pedal is not achieved, wait 15 seconds and repeat until a firm pedal is obtained.
- Fill the master cylinder reservoir to the proper level.
- Burnish the brake pads and rotors.