GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.

  1. Disconnect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Remove the rear window shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement.

  3. Object Number: 2043488  Size: SH
  4. Disengage the backup battery supporting bracket retaining clip (2) to release the backup battery (1).

  5. Object Number: 2043487  Size: SH
  6. In the rear compartment, under the rear window shelf, using a suitable tool disengage the retaining clips (1) and remove the backup battery assembly.

  7. Object Number: 2043480  Size: SH
  8. Disconnect the backup battery electrical connector (1) from the backup battery (2).
  9. Note: If replacing the battery, dispose of the battery in an environmentally friendly manner.

    Note: Slide the backup battery (1) over the backup battery supporting bracket retaining clip (2) and remove the backup battery (1) from the battery supporting bracket (3).

  10. Remove the backup battery (1) from the backup battery supporting bracket (3).

Installation Procedure


    Object Number: 2043490  Size: SH

    Note: Slide the backup battery (1) over the backup battery supporting bracket retaining clip (2) and listen for an audible click to ensure that the backup battery supporting bracket retaining clip (2) engages correctly to avoid an induced rattle condition.

  1. Install the backup battery (1) to the backup battery supporting bracket (3).

  2. Object Number: 2043487  Size: SH

    Note: Make sure that the backup battery supporting bracket retaining clips (1) engages correctly to avoid an induced rattle condition.

  3. Install the backup battery assembly to the rear window shelf and ensure that the retaining clips (1) engages correctly.

  4. Object Number: 2043480  Size: SH
  5. Connect the backup battery electrical connector (1) to the backup battery (2).
  6. Install the rear window shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement.
  7. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection.