2003 Oldsmobile Alero Owner's Manual - Page 125
2003 Oldsmobile Alero Manual
Page 125 highlights
When youswitch to the defog or defrost modes the system will automatically move from recirculation to outside air. When you move mode knob back the to another mode, the system will move back into recirculation. When the car is turned off and back onthe system will default to outside air automatically. Temperature Control: Turn the center knob clockwise or counterclockwise to manually increase or decrease the temperature inside your vehicle. When it's cold outside 0°F (-18°C) or lower, use the engine coolant heater, if equipped, to provide warmer air faster to your vehicle. An engine coolant heater warms the coolant that the engine uses to provide heat to warm the inside of your vehicle. For more information, see Engine Coolant Heater on page 2-20. A/C (Air Conditioning): Press this button to turn the air-conditioning system on or off. When A/C is pressed, an indicator light in the button will come on to let you know that air conditioning is activated. The fan knob must be set to a speed for the air conditioning to operate. On hot days, open the windows to let hot inside air escape; then close them. This helps to reduce the time it takes for your vehicle to cool down. It also helps the system to operate more efficiently. For quick cool down on hot days: 1. Select the vent mode. 2. Select the highest fan speed. 3. Select A/C. 4. Select the recirculation mode. 5. Select the coolest temperature. Using these settings together for long periods of time may cause the air inside of your vehicle to become too dry. To prevent this from happening, after the air in your vehicle is cooled, turn the recirculation mode off. The air-conditioning system removes moisture from the air, so you may sometimes notice a small amount of water dripping underneath your vehicle while idling or after turning off the engine. This is normal. Defogging and Defrosting There are two modes to choose from to clear fog or frost from your windshield. 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. Turn the right knob to select the defog or defrost mode. 3-20