GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 63971  Size: SH
  1. Disconnect the negative battery cable. Refer to

    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.

    in General Information.
  2. Remove the I/P lower trim panel.
  3. Disconnect the stoplamp connector.

  4. Object Number: 63977  Size: SH
  5. Remove the stoplamp switch.

Installation Procedure


    Object Number: 63977  Size: SH
  1. Install the stoplamp switch.
  2. Adjust the stoplamp switch. Refer to Stop Lamp Switch Adjustment .

  3. Object Number: 63971  Size: SH
  4. Connect the stoplamp switch connector.
  5. Install the I/P lower trim panel.
  6. Connect the negative battery cable.
  7. Tighten
    Tighten the negative battery cable bolt to 15 N·m (11 lb ft).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.