Vent Mode
When the driver presses the VENT switch, ambient air is brought into the vehicle and the A/C compressor clutch is turned off. The VENT button has no effect on the HVAC system when the FRONT DEFROST mode is selected. If the VENT button is pressed while system is in FRONT DEF, the VENT LED will flash 3 times to remind the driver that VENT is not available. When the HVAC system is off, pressing the VENT switch will put the HVAC system into automatic mode.