Heater Systems: Operation

When air distribution lever (upper lever) is in the center stop position and lower temperature control lever is to the far left, no air enters vehicle. As air distribution lever is moved to the left, air is directed to floor vents. As distribution lever is moved to the right, air is directed to defroster vents.

As heater lever (lower lever) is moved to the right, heater turns on and heat output is increased. As the fan control knob is turned to the right, the fan turns on and can be switched across its 3 speeds.