2004 Oldsmobile Alero Owner's Manual - Page 125
2004 Oldsmobile Alero Manual
Page 125 highlights
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. 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. - (Defog): This mode directs half of the air to the windshield and most of the remaining air to the floor outlets with a small amount directed at the side windows. When you select this mode, the system turns off recirculation and runs the air-conditioning compressor unless the outside temperature is at or below freezing. The recirculation mode cannot be selected while in the defog mode. Do not drive the vehicle until all the windows are clear. 1 (Defrost): This mode directs most of the air to the windshield with some air directed to the floor outlets. In this mode, the system will automatically turn off recirculation and run the air-conditioning compressor, unless the outside temperature is at or below freezing. Recirculation cannot be selected while in the defrost mode. 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 choose from to clear fog or frost from your windshield. Use the 3-21