GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Open the rear compartment.
  2. Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement in Bumpers.
  3. Pull back the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement .

  4. Object Number: 183203  Size: SH
  5. Release the snaps on the pressure relief valve using a small flat-bladed tool.
  6. Remove the pressure relief valve.

Installation Procedure


    Object Number: 183203  Size: SH
  1. Install the pressure relief valve.
  2. Snap the locks into place at both upper and lower locations.
  3. Pull back the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement .
  4. Install the rear fascia. Refer to Rear Bumper Fascia Replacement in Bumpers.
  5. Close the rear compartment.