GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Open the liftgate.

  2. Object Number: 1378634  Size: SH
  3. Remove the tail lamp. Refer to Tail Lamp Assembly and /or Backup, Sidemarker, Stop, Turn Signal Bulb Replacement in Lighting Systems.
  4. Remove the liftgate bumper bolts.
  5. Remove the bumper.

Installation Procedure


    Object Number: 1378634  Size: SH
  1. Position the liftgate bumper on the liftgate.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the bumper bolts.
  4. Tighten
    Tighten the bumper bolts to 8 N·m (71 lb in).

  5. Install the tail lamp. Refer to Tail Lamp Assembly and /or Backup, Sidemarker, Stop, Turn Signal Bulb Replacement in Lighting Systems.
  6. Close the liftgate.
  7. Inspect for proper engagement of the liftgate bumper.