GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 255866  Size: SH
  1. Remove the tail lamp assembly. Refer to Tail/Backup Lamp Replacement in Lighting Systems.
  2. Remove the latch cable from the lock cylinder.
  3. Remove the fasteners (3) securing the lock cylinder (2) to the lid (1).
  4. Remove the lock cylinder (2) from the rear compartment lid (1).

Installation Procedure


    Object Number: 255866  Size: SH
  1. Install the lock cylinder (2) to the lid (1).
  2. 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.

  3. Install the fasteners (3) in order to secure the lock cylinder (2) to the lid (1).
  4. Tighten
    Tighten the fasteners to 9 N·m (80 lb in).

  5. Install the latch cable to the lock cylinder.
  6. Install the back up lamp assembly. Refer to Tail/Backup Lamp Replacement in Lighting Systems.