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, right side as needed. Refer to Rear Compartment Trim Panel Replacement .

  4. Object Number: 183203  Size: SH
  5. Release snaps on the pressure relief valve using a small flat-bladed tool at the two upper and two lower locations.
  6. Remove the pressure relief valve from the lower quarter panel.

Installation Procedure


    Object Number: 183203  Size: SH
  1. Align the pressure relief valve to the quarter panel.
  2. Install the pressure relief valve into the quarter panel until the snaps lock into place at both upper and lower locations.
  3. Install 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.