GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

For information on stoplamp circuit diagnosis, refer to Lighting Systems in Body and Chassis; and Electrical Diagnosis.

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable.
  2. Disable the SIR. Refer to Disabling the SIR System .

  3. Object Number: 156233  Size: SH
  4. Remove the pushrod retainer from the brake pedal pin. Use snap ring pliers.
  5. Unsnap the stoplamp switch from the pushrod.
  6. Disconnect the electrical connector from the stoplamp switch.

Installation Procedure


    Object Number: 156233  Size: SH
  1. Connect the electrical connector to the stoplamp switch.
  2. Snap the stoplamp switch onto the pushrod.
  3. Install a new pushrod retainer on the brake pedal pin. Use an 11 mm (7/16 in) socket in order to push a new clip onto the pin.
  4. Connect the negative battery cable.
  5. Enable the SIR. Refer to Enabling the SIR System in Supplemental Inflatable Restraints.