Brake Pedal Assy: Service and Repair

BRAKE PEDAL

REMOVAL
1. Disable SIR system.





2. Disconnect accelerator pedal electrical connector.





3. On vehicles with OnStar (R), remove OnStar (R) module from OnStar (R) bracket and tuck module out of the way.





4. Remove brake pedal-to-vacuum booster pivot pin clip and foam washer.





5. Remove stop lamp switch and switch retainer from brake pedal bracket.





6. Remove cruise brake switch and switch retainer from brake pedal bracket.

IMPORTANT: Disengaging vacuum booster from the front of dash and pushing it towards the center of vehicle will aid in disengaging vacuum booster push rod from brake pedal pivot pin.





7. Remove four nuts attaching vacuum booster to brake pedal bracket and disengage vacuum booster Push rod from brake pedal pivot pin.





8. Remove brake pedal bracket-to-cross car beam bolt.
9. Loosen steering column bracket-to-front of dash nut.

IMPORTANT: The brake pedal bracket has pilot spacers that engage the foam rubber insulation panel. It is required to pry the insulation panel away from the brake pedal bracket.





10. Slide brake pedal and bracket assembly sideways toward the center console and remove from vehicle.





11. Remove accelerator pedal assembly from brake pedal bracket.





12. On vehicles equipped with OnStar (R), remove OnStar (R) bracket and J-nuts from brake pedal bracket.

INSTALLATION
1. On vehicles equipped with OnStar (R), install J-nuts and OnStar (R) bracket onto brake pedal bracket.
Torque:
OnStar (R) Bracket-to-Brake Pedal Bracket: 10 Nm (89 inch lbs.)





2. Install accelerator pedal assembly onto brake pedal bracket.
Torque:
Accelerator-to-Brake Pedal Bracket: 25 Nm (18 ft. lbs.)





3. Install brake pedal and bracket assembly into vehicle. Make sure that pilot spacers on brake pedal bracket are engaged into holes in foam rubber insulation pad.





4. Install brake pedal bracket-to-cross car beam bolt.
Torque:
Brake Pedal Bracket-to-Cross Car Beam Bolt: 25 Nm (18 ft. lbs.)

IMPORTANT: Depressing brake pedal will help in connecting vacuum booster push rod to brake pedal pivot pin.

5. Lubricate brake pedal pivot pin with silicone grease and attach vacuum booster push rod to brake pedal pivot pin.





6. Install brake pedal pivot pin foam washer clip.





7. Position vacuum booster studs into brake pedal bracket holes and install vacuum booster-to-brake pedal bracket nuts.
Torque:
Vacuum Booster-to-Brake Pedal Bracket Nuts: 25 Nm (18 ft. lbs.)





8. Tighten steering column bracket to front of dash nut.
Torque:
Steering Column Bracket-to-Front of Dash: 25 Nm (18 ft. lbs.)





9. Install cruise brake switch and retainer into brake pedal bracket.





10. Install stop lamp switch and retainer into brake pedal bracket.





11. On vehicles equipped with OnStar (R), install OnStar (R) module onto OnStar (R) bracket.
Torque:
OnStar (R) Module-to-OnStar Bracket: 10 Nm (89 inch lbs.)





12. Attach accelerator pedal electrical connector.