For 1990-2009 cars

### Removal Procedure

1. Remove the right rear bumper fascia. Refer to Rear Bumper Fascia Replacement .
2. Pull back the rear compartment trim from the right rear corner in order to expose the quarter outer panel pressure relief valve.
3. Remove the quarter outer panel pressure relief valve (1).

Disengage the four tabs from the inside of the rear compartment.

### Installation Procedure

1. Install the pressure relief valve (1) by sliding the valve into the opening and engaging the tabs.

Fully engage all four tabs.

2. Install the rear compartment trim.
3. Install the right rear bumper fascia. Refer to Rear Bumper Fascia Replacement .