GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Replace the lens, the lamp, and the base as one assembly.

  1. Make sure the headlamp switch is in the OFF position.

  2. Object Number: 277187  Size: SH
  3. Remove the lens.
  4. Remove the 2 screws that retain the lamp assembly to the vehicle.
  5. Remove the lamp assembly.
  6. Disconnect the electrical connector.

Installation Procedure


    Object Number: 277187  Size: SH
  1. Connect the electrical connector.
  2. Install the lamp assembly to the endgate.
  3. 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.

  4. Install the 2 screws to retain the lamp assembly to the vehicle.
  5. Tighten
    Tighten the screws to 2 N·m (18 lb in).

  6. Install the lens.