GM Service Manual Online
For 1990-2009 cars only

Notice: Proper stoplamp switch adjustment is essential. Improper stoplamp switch adjustment may cause brake drag, heat buildup and excessive brake lining wear.

Important: Adjust the stoplamp switch and cruise control release at the same time. The adjustment procedures for the stoplamp switch and the cruise control release switch are identical.

  1. With the brake pedal fully released, ensure that the stoplamp plunger is fully depressed against the brake pedal shanks.

  2. Object Number: 165309  Size: SH
  3. Hold the brake pedal forward and ensure the stoplamp switch (5) and the cruise control switch (3) (if equipped) are fully seated into the brake pedal bracket (1).
  4. Pull the brake pedal to the rear, against the internal stop. The stoplamp switch and cruise control switch will be adjusted.
  5. Inspect the stoplamps for proper operation.