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 right side rear compartment trim as needed to access the pressure relief valve. Refer to Rear Compartment Trim Panel Replacement .

  4. Object Number: 183203  Size: SH
  5. Use a small flat-bladed tool to remove the upper and lower retainers on the pressure release valve.
  6. Remove the pressure relief valve from the right lower quarter panel.

Installation Procedure


    Object Number: 183203  Size: SH
  1. Position the pressure relief valve to the right lower quarter panel.
  2. Apply pressure to the pressure release valve retainers until firmly seated.
  3. Install the right side rear compartment trim. Refer to Rear Compartment Trim Panel Replacement .
  4. Install the rear bumper fascia. Refer to Rear Bumper Fascia Replacement in Bumpers.
  5. Close the rear compartment.