2002 Buick LeSabre Owner's Manual - Page 162

OFF: If the passenger comfort control is turned on, it can be turned off by pressing the OFF button once. Pressing the OFF button a second time will turn off the main system. Turning off the main system causes the fan to turn off and the airflow to be directed toward the floor. The system will still try to keep the interior of the vehicle at the previously chosen temperature setting. The outside temperature will show on the display when the system is off. The ventilation system always allows fresh air to flow through your vehicle when the vehicle is moving even when the system is off. VENT (Flow-Through Ventilation): The VENT button allows outside air to flow through your vehicle without the air conditioning compressor working. To turn off the VENT selection, push the VENT button again. If you select VENT while in FRONT defrost, the VENT light will flash three times to let you know this is not allowed. This is to prevent fogging. RECIRC (Recirculation): 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 or the RECIRC button is pressed again. RECIRC can be selected in all manual airflow modes except FRONT defrost and VENT. If you select RECIRC while in FRONT defrost, the RECIRC light will flash three times to let you know this is not allowed. This is to prevent fogging. FRONT: This selection is used to defrost the windshield by directing the airflow toward the windshield. To turn off FRONT, press the AUTO or AIR FLOW button. If the AIR FLOW up button is selected while in the FRONT defrost mode, the system will direct the air toward the windshield and the floor. If the AIR FLOW down button is selected while in the FRONT defrost mode, the system will direct the air toward the floor, and the FRONT defrost mode will cancel. 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. 3-5