2004 Buick Regal Owner's Manual - Page 120

9 FAN: Press the up arrow on the FAN control to increase fan speed and the down arrow to decrease fan speed. Pressing the arrows cancels the automatic operation and places the system in manual mode. Press the AUTO button to return to automatic operation. If the airflow seems low when the fan is at the highest setting, the passenger compartment air filter, if equipped, may need to be replaced. For more information see Passenger Compartment Air Filter on page 3-25 and Scheduled Maintenance on page 6-4. AIR FLOW: This control has several settings to control the direction of airflow when the system is not in AUTO. To access the various modes available, continue to press the AIR FLOW up or down arrows until the desired mode, listed below, appears in the display. WINDSHIELD/FLOOR: This setting directs some of the air to the floor outlets and some to the defroster and side window outlets. The air-conditioning compressor will run automatically in this setting unless the outside temperature is below 40°F (4°C). MID/FLOOR: This mode directs airflow through both the floor and the instrument panel outlets. A small amount of air is directed to the windshield and the side window outlets. MID (Instrument Panel): This mode directs air through the instrument panel outlets. FLOOR: This setting sends most of the air through the outlets near the floor. The rest comes out of the defroster and side window outlets. VENT: Press this button to turn the air-conditioning compressor on or off. The indicator light on the VENT mode is lit when the compressor is turned off. The interior brightness control might have to be adjusted to the highest setting during the day in order to see the indicator lamp. VENT does not operate in the FRONT defrost mode. RECIRC (Recirculation): Press this button to turn this mode on or off. RECIRC limits the amount of outside air coming into the vehicle and recirculates most of the air inside your vehicle. It can be use to prevent outside air and odors from entering the vehicle or to quickly heat or cool the air inside the vehicle. When this button is pressed an indicator light will come on. The interior brightness control might have to be adjusted to the highest setting during the day in order to see the indicator lamp. This setting is not permitted in FRONT defrost mode and is only permitted in WINDSHIELD/FLOOR mode if the compressor is turned on. On hot days, open the windows to let hot air inside escape; then close them. This helps to reduce the time it takes for the vehicle to cool down. It also helps the system to operate more efficiently. 3-22