Curiosii for ever!: Car repair manuals for everyone.

Pressure Relief Vent Description

Pressure Relief Vent Description

When all the windows are closed and the ventilation system is on, the addition of outside air to the interior of the vehicle causes a positive pressure within the vehicle. To relieve the pressure, air is released through a pressure relief vent. The pressure relief vents are located at the rear quarter of the vehicle, behind the bumper fascia.