Operation CHARM: Car repair manuals for everyone.

Outside Air Mode

When the driver presses the OUTSIDE AIR switch, outside air is brought into the vehicle. This mode has no effect on the system when FRONT DEFROST mode is selected. OUTSIDE AIR and RECIRCULATION are separate modes and are not available together. When the HVAC system is off, pressing the OUTSIDE AIR switch will put the HVAC system into automatic mode.