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.


    Object Number: 182813  Size: LH
  1. Adjust the cruise control release switch (2) and the stoplamp and Torque Converter Clutch (TCC) switch (3) at the same time.
  2. Adjust the cruise control clutch switch (4) or the cruise control clutch anticipate switch (6) if equipped after the clutch pedal is installed.
  3. Depress the brake or the clutch pedal.
  4. Insert the following switches into the pedal with the bracket until the retainers on the switches are fully seated:
  5. • Cruise control release switch (2)
    • Stoplamp and TCC switch (3)
    • Cruise control clutch switch (4) or cruise control clutch anticipate switch (6) if equipped.

    Important: Apply the proper amount of force to the brake pedal during adjustment.

       • Too much force may damage the vacuum booster.
       • Too little force may cause the brakes to drag.

  6. Slowly pull the brake or clutch pedal rearward with a force of 222 N (50 lbs) until clicking sounds are no longer heard. At this point, the retainers on the switches will be adjusted.
  7. Measure the cruise control release switch (2).
  8. Measure the stoplamp and TCC switch (3).
  9. The switch contacts should be open at 25.4 mm (1.0 in) or less of pedal travel. The switch contacts should occur at the same time or before the onset of braking. The brake pedal travel can be up to 25.4 mm (1.0 in) before the cruise control system disengages.