GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1957853  Size: SH
  1. Remove the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement.
  2. Disconnect the subwoofer electrical connector (3).
  3. Remove the retainer (1) securing the harness (3) to the shelf.

  4. Object Number: 1957857  Size: SH
  5. Remove the subwoofer assembly to rear shelf attaching screws (1).
  6. Slide the harness (3) away from the subwoofer assembly (2).
  7. Remove the subwoofer assembly (2) from the rear shelf.

Installation Procedure


    Object Number: 1957857  Size: SH
  1. Install the subwoofer assembly (2) to the rear shelf.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the subwoofer assembly to rear shelf attaching screws (1).
  4. Tighten
    Tighten the screws to 2 N·m (18 lb in).


    Object Number: 1957853  Size: SH
  5. Secure the electrical harness retainer (1) to the shelf.
  6. Connect the subwoofer electrical connector (2).
  7. Install the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement.