See also:

Engine block heater (if so equipped)
WARNING ● Do not use your engine block heater with an ungrounded electrical system or a 2-pronged adapter. You can be seriously injured by an electrical shock if you use an ungrounded conne ...

Fan speed control
Turn the fan control dial left or right to manually control the fan speed. Press the OFF button to turn the system off. Press the AUTO button to return to automatic control of the fan speed. ...

Air flow control
Press the air flow control buttons to manually control air flow and select the air outlet: — Air flows from center and side vents. — Air flows from center and side vents and foot outlets. â ...