2004 Chevrolet Cavalier Owner's Manual - Page 116

Defogging and Defrosting Fog on the inside of windows is a result of high humidity (moisture) condensing on the cool window glass. This can be minimized if the climate control system is used properly. There are two modes to clear fog or frost from your windshield and side windows. Use the defog mode to clear the windows of fog or moisture and warm the passengers. Use the defrost mode to remove fog or frost from the windshield more quickly. For best results, clear all snow and ice from the windshield before defrosting. Turn the right knob to select the defog or defrost mode. 0(Defrost): This mode directs most of the air to the windshield, with some air directed to the side window outlets and the floor outlets. When you select this mode, the system runs the air-conditioning compressor unless the outside temperature is at or below freezing. The air-conditioning indicator light will also be on in this setting. To defog the side windows, set the right knob to floor and the fan knob to the highest setting. You can use the air conditioning while in this setting by pressing the air conditioning button. In both cases, aim the side outlets toward the side windows. For increased airflow to the side outlets, close the center outlets. Do not drive the vehicle until all the windows are clear. -(Defog): This mode directs half of the air to the windshield and the side window outlets and half to the floor outlets. When you select this mode, the system runs the air-conditioning compressor unless the outside temperature is at or below freezing. The air-conditioning indicator light will also be on in this setting. To defog the windows faster, turn the temperature control knob clockwise to the warmest setting. 3-18