Operation CHARM: Car repair manuals for everyone.

Bi-Level Mode

When the driver selects the BI-LEVEL mode, cool air is delivered through the instrument panel outlets while warm air is delivered through the floor outlets. The blower motor and A/C compressor clutch are activated. Outside air is brought into the vehicle. Vacuum is supplied to one side of the defrost actuator. The actuator retracts, opening the mode and heater doors.