GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Completely open the rear door.

  2. Object Number: 313470  Size: SH
  3. Remove the bolts that retain the door extension to the door.
  4. Partially close the rear door.
  5. Grasp the extension.
  6. Pull the extension in order to disengage the extension from the door.
  7. Remove the rear door extension panel from the vehicle.

Installation Procedure


    Object Number: 313470  Size: SH
  1. Install the rear door extension panel to the vehicle.
  2. Align the extension panel to the door.
  3. Press on the rear door extension panel in order to engage the panel with the rear door.
  4. Completely open the rear door.
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the bolts that retain the rear door extension panel to the door and tighten to 2 N·m (18 lb in).