1999 Chevrolet Monte Carlo Owner's Manual - Page 126

yellowblue 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. 3-2