2002 Oldsmobile Intrigue Owner's Manual - Page 152

(Recirculation): This button is used to recirculate much of the air inside your vehicle. This setting is not available in defogger or defroster. Operating the system in recirculation may cause the windows to fog up when the weather is cold and damp. To clear the fog, use the defog or defrost modes and increase the fan speed. To avoid refogging of the windows, use the outside air mode. (Outside Air): This button is used to bring outside air into the vehicle. For normal cooling on hot days, use the vent outlets with the temperature knob turned to the blue area. With the A/C button and the outside air button pressed in, the system will bring in outside air and cool 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 use bi-level with the temperature knob in the middle with the A/C button and the outside air button pressed. The system will bring in outside air and direct it to your upper body, while sending slightly warmed air to your lower body. You may notice the temperature difference more at some times than others. Air Conditioning On very hot days, open the windows long enough to let hot inside air escape. This reduces the time the compressor has to run, which should help with fuel economy. For quick cool-down on very hot days, use the vent outlets, recirculation with the temperature knob turned all the way to the blue area, the air conditioner on, and the fan on a high setting. If this setting is used for long periods of time, the air in your vehicle may become too dry. Heating On cold days turn the fan on and use floor and the outside air button pressed in with the temperature knob turned all the way to the red area. The system will bring in outside air, heat it and send it to the floor ducts. If your vehicle has an engine coolant heater, you can use it to help your system provide warm air faster when it's cold outside (0_F (-18_C) or lower). An engine coolant heater warms the coolant your engine and heating system use to provide heat. See "Engine Coolant Heater" in the Index. 3-4