Chevrolet LUMINA 1999, Owner'S Manual

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Comfort Controls
Air Conditioning with Electronic Controls
With these systems, you can control the heating, cooling
and ventilation in your vehicle. The systems work best if
you keep your windows closed while using them.
Fan Knob
The right knob with the fan symbol controls the force of
air you want. To turn the fan off, turn the knob to “O.”
Temperature Control
If your system does not have the auxiliary temperature
control option, the center knob changes the temperature
of the air coming through the system. Turn this knob
toward red (clockwise) for warmer air. Turn it toward
blue (counterclockwise) for cooler air.
If your system does have the auxiliary temperature
control option, the center levers change the temperature
of the air coming through the system. The DRIV lever
sets the temperature for the driver and rear seat
passengers, and the PASS lever sets the temperature for
the front seat passenger. For maximum defroster
performance, set the DRIV and PASS levers at
full warm.