For 1990-2009 cars

### Removal Procedure

1. Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement in Bumpers.
2. Remove the rear accessory panel. Refer to Rear Accessory Panel Replacement in Interior Trim.
3. Use a small, flat-bladed tool in order to push on the retainers from the inside of the quarter panel.
4. Remove the pressure relief valve from the body.

### Installation Procedure

1. Install the pressure relief valve to the body.
2. Push in the pressure relief valve in order to secure the retainers into the body.
3. Install the rear accessory panel. Refer to Rear Accessory Panel Replacement in Interior Trim.
4. Install the rear bumper fascia. Refer to Rear Bumper Fascia Replacement in Bumpers.