GM 18048690
Brake Pads

Check the brake master cylinder reservoir fluid level before working on the brake pads. If fluid reaches the halfway point between maximum and minimum levels you can start without fluid removal. But lowering the fluid to the middle point is needed if the reservoir shows higher fluid levels. Lift your car after putting it on stands. Take off the wheel assembly and tire from the vehicle. After detaching the sensor harness from the Control Arm pull off both caliper bolts. Use wire to hold the brake caliper steady then gently remove its bracket attachment without disconnecting the hydraulic hose. Take the pads from inside and outside areas of the Brake Caliper Bracket. Carefully examine both ends of the brake caliper boot and wash its pad anchors before testing Brake Pad retainers. Also inspect the piston boot for defects. Twist the Brake Caliper Piston spanner clockwise until it stops at the bottom of the brake caliper bore (utilize Mac(R) tools dbc 25 c 2500 ma disc brake caliper tool set or an equivalent). Position the indents on the piston face with the notch on the back of the inboard brake pads before inserting the Brake Pad retainers into the Brake Caliper Bracket. Push the caliper over the steering arm using new pads while placing the pad with metal wear indicator on the inboard side. Also replace any damaged boots on the bracket of the steering arm. Reinstall the wss harness onto the lower Control Arm and fasten the brake caliper bolts to 34 n.m (25 lb ft). Install the tire wheel assembly then lower the vehicle. After switching the engine off gradually push the brake pedal two-thirds of its range followed by releasing it slowly. Press the brake pedal twice for 15 seconds with breaks to allow brake pistons and pads to take their position properly. Complete the brake master cylinder reservoir to the correct amount and perform Brake Pad and rotor polishing.

The inboard and outboard pads.

Care should be taken to avoid overheating the brakes.

Pivot the caliper down to access the pads without removing it, then remove the brake pads and the 2 pad clips from the caliper bracket.

Remove the 2 wheel lug nuts retaining the rotor to the hub, install the tire and wheel assembly, and lower the vehicle.