Ventilation System

Ventilation:

The air distribution system provides fresh air ventilation for the passenger compartment in all operating modes. A small amount of outside air is still provided in the RECIRC mode while most of the air is re-circulated. Even in the OFF mode, fresh air is forced into the air distribution system by the forward movement of the vehicle.

After being warmed or cooled to the desired temperature, the air is discharged from the outlets. When all the windows are closed, the addition of outside air builds a slight positive pressure within the passenger compartment. The pressure forces stale air to leave the vehicle through a pressure relief valve, located behind the LR wheelhouse inside the quarter panel.