GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Yukon XL Denali 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Brake Pedal Assembly Replacement

Removal Procedure
  1. Remove the 2 master cylinder nuts.

    2. Important: DO NOT disconnect the brake pipes from the master cylinder.

  2. Position the master cylinder aside and support with heavy mechanics wire or equivalent.
  3. Remove the steering column from the vehicle. Refer to Steering Column Replacement .

    4. Object Number: 394467 Size: SH
  4. Remove the transmission range selector cable support bolt from the instrument panel (I/P) reinforcement brace.
  5. Disconnect the electrical connectors from the following components:
    6. • The adjustable pedals motor assembly
    • The memory sensor connector, if equipped
    • The pedal position sensor

    Object Number: 1704147 Size: SH
  6. Remove the accelerator pedal position sensor assembly. Refer to Accelerator Pedal Position Sensor Replacement .
  7. Remove the left side floor air outlet duct. Refer to Floor Air Outlet Duct Replacement - Left Side .

    8. Object Number: 1892143 Size: SH
  8. Remove the brake booster pushrod retainer bolt (1).

    9. Object Number: 1892145 Size: SH
  9. Remove the brake booster pushrod retainer (1).

    10. Object Number: 1892146 Size: SH
  10. Remove the stoplamp switch (1).
  11. Disconnect the brake booster pushrod from the brake pedal pivot.

    12. Object Number: 1892147 Size: SH
  12. Remove the adjustable pedal bracket nuts (1).

    13. Object Number: 1892149 Size: SH
  13. Remove the adjustable pedal bracket bolt (1).
  14. Position the brake booster forward until the studs are past the adjustable pedal bracket holes.
  15. Remove the adjustable pedal assembly from the vehicle.

Installation Procedure
  1. With the aid of an assistant, position the brake booster to the vehicle.

    2. Object Number: 1892149 Size: SH
  2. Install the adjustable pedal assembly to the vehicle.

    3. Important: Do not tighten the adjustable pedal bracket bolt until the adjustable pedal bracket nuts are installed.

  3. Hand install the adjustable pedal bracket bolt (1).

    4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1892147 Size: SH
  4. Install the adjustable pedal bracket nuts (1).

    5. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).

  5. Tighten the adjustable pedal bracket bolt.

    6. Tighten
    Tighten the bolt to 36 N·m (27 lb ft).


    Object Number: 1892146 Size: SH
  6. Apply a thin coat of high temperature grease GM P/N 12345994 (Canadian P/N 10953501) to the pushrod pin on the brake pedal.
  7. Connect the brake booster pushrod to the brake pedal pivot.
  8. Install the stoplamp switch (1).

    9. Object Number: 1892145 Size: SH
  9. Install the brake booster pushrod retainer (1).

    10. Rotate the retainer 360 degrees to ensure it is seated properly before tightening the retainer bolt.


    Object Number: 1892143 Size: SH
  10. Install the brake booster pushrod retainer bolt (1).

    11. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  11. Install the accelerator pedal position sensor assembly. Refer to Accelerator Pedal Position Sensor Replacement .
  12. Connect the electrical connectors to the following components:
    13. • The adjustable pedals motor assembly
    • The memory sensor connector, if equipped
    • The pedal position sensor

    Object Number: 394467 Size: SH
  13. Install the transmission range selector cable support bolt to the I/P reinforcement brace.

    14. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  14. Install the steering column to the vehicle. Refer to Steering Column Replacement .
  15. Install the left side floor air outlet duct. Refer to Floor Air Outlet Duct Replacement - Left Side .
  16. Install the master cylinder to the brake booster.
  17. Install the 2 master cylinder nuts.

    18. Tighten
    Tighten the nuts to 33 N·m (24 lb ft).

  18. Verify the correct operation of the adjustable pedals.