GM Service Manual Online
For 1990-2009 cars only

After the stoplamp switch is installed, the stoplamp switch will adjust itself the first time the brake pedal returns to the brake pedal stop.


    Object Number: 30780  Size: SH
  1. Apply the brake pedal.
  2. While the brake pedal is applied, push the stoplamp switch in until the stoplamp switch is firmly seated in the clip
  3. Clicks can be heard as the threaded portion of the stoplamp switch is pushed through the clip.

  4. Pull the brake pedal against the brake pedal stop until a click can no longer be heard.
  5. Electrical contact should occur when the brake pedal is applied for a distance of 11-24 mm (0.45-0.95 in.).