GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

The 2 pressure relief vents are located in the following areas:

    • The left side of the vehicle behind the rear bumper fascia
    • The right side of the vehicle behind the rear bumper fascia

You can service a vent without removing the rear bumper fascia. Access the vent between the following areas:

    • The outer rear compartment wall
    • The rear bumper fascia
  1. Gently squeeze both sides of the pressure relief vent.
  2. Pull the vent away from the outer rear compartment wall.
  3. Remove the pressure relief vent flap from the pressure relief vent body.

Installation Procedure

  1. Install the pressure relief vent flap to the pressure relief vent body.
  2. Gently squeeze both sides of the pressure relief vent.
  3. Snap the pressure relief vent into the outer rear compartment wall.