GM Service Manual Online
For 1990-2009 cars only

    Object Number: 289628  Size: SH

    Important: Connect the brake booster pushrod to the brake pedal assembly before attempting to adjust the release switch assembly (1) and the stoplamp switch assembly (2).

    Notice: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment could cause brake drag and excessive brake lining wear.

  1. Press the brake pedal assembly.
  2. Insert the following components into the retainers until fully seated against the brake pedal bracket:
  3. • The release switch assembly (1)
    • The stoplamp switch assembly (2)
  4. Twist the switch in order to lock into the desired position.
  5. In order to ensure a properly adjusted release switch assembly and a properly adjusted stoplamp switch assembly, use the following brake pedal assembly travel distances:
  6. • The release switch assembly and the stoplamp switch assembly contacts must be open at a brake pedal travel range of 3.5-12.5 mm (0.125-0.5 in).
    • The brake pedal assembly travel is measured at the centerline of the brake pedal assembly pad.
    • The nominal actuation of the stoplamp switch assembly contacts is about 4.5 mm (0.188 in) after the cruise control switch assembly contacts close.