1999 Buick LeSabre Owner's Manual - Page 132

First Edition for Buick LeSabre Owner's Manual - 1999 The ventilation system always allows fresh air to flow through your vehicle when the vehicle is moving even with the system in the OFF mode. VENT: The VENT button allows outside air to flow through your vehicle without the air conditioning compressor working. Selecting VENT and the AUTO button at the same time allows the system to control automatically without the use of the air conditioning compressor or the use of the RECIRC mode. To turn off the VENT selection, push the VENT button again. RECIRC: When RECIRC is selected, the system will limit the amount of outside air entering your vehicle. This is helpful when you are trying to cool the interior of the vehicle quickly or limit the amount of outside air entering your vehicle. RECIRC and AUTO may be selected at the same time. The system will remain in RECIRC until the ignition is turned off, then the system will return back to the previously selected mode. Deselecting the RECIRC button will also turn off the RECIRC function. RECIRC can be selected in all manual airflow modes except FRONT defrost and VENT. FRONT: This selection is used to defrost the windshield by directing the airflow toward the windshield. yellowblue If FRONT is selected while in the AUTO mode, the fan speed and the air temperature from the front defroster will vary. If a manual fan speed setting is selected, the fan speed will remain at that selection until another fan speed selection is made or the AUTO mode is selected. To turn off FRONT, press the AUTO or AIR FLOW button. FRONT defrost will work better if any ice or snow is cleared from the hood and the air inlet area between the base of the windshield and the hood. Air Conditioning On hot days, open the windows long enough to let hot inside air escape. This reduces the time it takes for your vehicle to cool down. Then keep your windows closed for the air conditioner to work its best. If you have the electronic touch system, for quick cool-down on very hot days, use MAX with the temperature and fan speed adjusted to COOL and HIGH. If this setting is used for long periods of time, the air in your vehicle may become too cold and dry. For normal cooling on hot days, use NORM and adjust the temperature and fan speed for your comfort. If RECIRC is selected while in the NORM air conditioning mode, the system works like MAX and recirculates the air. 3-6