2002 Cadillac DeVille Owner's Manual - Page 208

Air Conditioning On hot days, open the windows long enough to let hot inside air escape. This reduces the time it takes for your vehicle to cool down. Then keep your windows closed for the air conditioner to work its best. Press the driver's temperature knob to turn the system on manually. You may also need to adjust the temperature and fan speed. The system will cool and dehumidify the air inside the vehicle. When the system is in AUTO, it will use recirculation as necessary to cool the air. Defogging and Defrosting Use FRONT on cool and humid days to keep the windshield and side windows clear. This setting will remove fog or ice from the windshield quickly in extremely humid or cold conditions. If you desire to have more air on your feet, turn the control to the floor/defrost mode. Press FRONT to activate the defrost mode. Adjust the fan speed by pressing the up or down arrow on the fan button. You may also adjust the temperature by turning the driver's temperature knob. If you select floor/defrost from AUTO, the system will control the fan speed and temperature for you. Recirculation is not available in the defrost mode, and the A/C system cannot be turned off in this mode. Heating Press MODE to select floor. Adjust the interior temperature manually to a comfortable level. If the fan speed needs adjustment, press the up or down arrow. Outside air will be brought in, warmed and sent through the floor, instrument panel outlets. The heater works best if you keep your windows closed while using it. In AUTO, the fan will not run at high speed to minimize warm-up time. 3-6