2002 Chevrolet Impala Owner's Manual - Page 176
2002 Chevrolet Impala Manual
Page 176 highlights
Air Conditioning On very hot days, open the windows long enough to let hot, inside air escape. This reduces the time for the vehicle to cool down. Then keep your windows closed for the air conditioner to work its best. For quick cool down on very hot days select a fan setting, turn the mode knob on the control panel to vent; press the A/C and the recirculation buttons and move the temperature controls all the way into the blue area. If this setting is used for long periods of time, the air in your vehicle may become too dry. For normal cooling on hot days, turn the mode knob on the control panel to vent; press the A/C and the outside air buttons and move the temperature control all the way into the blue area. The system will bring in outside air and cool and dehumidify it. On cool, but sunny days, the sun may warm your upper body, but your lower body may not be warm enough. To remedy this you can select a fan setting, turn the mode knob on the control panel to the bi-level mode, press the A/C button, and move the temperature control to a comfortable setting. Heating On cold days, select a fan setting, turn the mode knob on the control panel to floor, press the outside air button on and move the temperature control all the way in the red area. The system will bring in outside air, heat it and send it to the floor ducts. Ventilation For mild outside temperatures when little heating or cooling is needed, select a fan setting and turn the mode knob on the control panel to vent. Press the outside air button and move the temperature controls to a comfortable setting. Your vehicle also has the flow-through ventilation system described later in this section. Defogging and Defrosting Your system has two settings for clearing the front and side windows. To defrost the windows quickly, use defroster with the temperature controls all the way in the red area. To warm passengers while keeping the windows clear, use defogger. For more information, see "Recirculation" in the Index. 3-4