GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 856588  Size: SH
  1. Open the rear compartment.
  2. Remove the screws from the tail lamp.
  3. Pull the tail lamp rearward to disengage the tail lamp from the quarter panel.
  4. Disconnect the electrical connector from the tail lamp wiring harness.
  5. Remove the tail lamp and backup lamp sockets by depressing the locking tab and rotating the sockets counterclockwise.
  6. Remove the side marker lamp socket from the tail lamp by rotating the socket counterclockwise.
  7. Remove the bulbs from the tail lamp, backup lamp and/or side marker lamp sockets.

Installation Procedure


    Object Number: 856588  Size: SH
  1. Install the bulbs to the tail lamp, backup lamp, and/or side marker lamp sockets.
  2. Install the tail lamp and/or backup lamp sockets to the tail lamp. Rotate the sockets clockwise until the locking tabs are fully seated.
  3. Install the side marker lamp socket to the tail lamp. Rotate the socket clockwise until the socket is fully seated.
  4. Connect the electrical connector to the tail lamp wiring harness.
  5. Position the tail lamp to the quarter panel.
  6. 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.

  7. Install the tail lamp screws to the tail lamp.
  8. Tighten
    Tighten the tail lamp screw to 2 N·m (18 lb in).

  9. Close the rear compartment.