1994 Buick LeSabre Owner's Manual - Page 129

If your Buick has this climate control system, the following information tells you how it works. Off When the system is off, the ventilation system will allow air to flow through your Buick when the vehicle is moving. The system will try to keep the air at the chosen temperature, unless it is very hot or very cold outside. When the system is off, the blower fan is also off. Air Conditioning The next three selections cool the air. The air conditioner won't work well unless all the windows are closed. On very hot days, open the windows long enough to let hot inside air out. This reduces the amount of work your air conditioner's compressorwill have to do, which should help fuel economy. Fan Speeds The fan control is used to select the speed of the blower fan. There are four speeds to choose from. Moving the lever to the right or left will increase or decrease the fan speed. The fanwill be off when the system is off. The airconditioning compressor operates in all Air Conditioning positions and the DEFOG and Defrost position when the outside temperature is above 47°F (SOC). Selecting OFF, VENT or HTR turns OFF the air conditioning compressor. When you don't need to cool the outside air, use the VENT or HEAT settings. Adjust the temperature control for comfort. You'll get better fuel economy (gas mileage) if you're not cooling the outside air. When you cool the air, your engine runs a refrigeration compressor, and it has to work a little harder. Temperature The lower lever changes the temperatureof the air coming through your air outlets. Movingthe lever between COOL and WARM will raise or lower the temperature. 127