2000 Buick Regal Owner's Manual - Page 148

Automatic Control For the most efficient operation, you should set the system temperature and press AUTO. The system will select the best fan speed and airflow settings to keep you comfortable. The air conditioning compressor will run if the outside temperature is above 40_F (4_C). You may notice a delay of two to three minutes before the fan comes on at start up in cool weather. Temperature Control The TEMP switch sets the temperature for the entire system when the light on the DUAL button isn't lit. If the DUAL button light is lit, this master temperature control sets the temperature for the driver only. Press the up arrow to raise the temperature and press the down arrow to lower the temperature. The display will show your selection for a few seconds, then the outside temperature will be displayed. If you push the AUTO button, the system will control the fan speed and airflow. The driver's temperature and passenger's temperature settings will be automatically maintained even if manual overrides have been selected except for settings at 60_F (15_C) and 90_F (32_C). Setting the temperature to 90_F (32_C) will lock control in full hot, direct air to the floor, and increase the fan speed to high. The system will not return to automatic temperature control until the temperature setting is lowered. Setting the temperature to 60_F (15_C) will lock control in full cold, recirculate interior air, direct air to outlets on panel and increase blower speed to high. The system will not return to automatic temperature control until the temperature setting is raised. Passenger's Temperature Control The PASSENGER CONTROL buttons with the arrows adjust the temperature on the passenger's side so it is warmer or cooler than the temperature for the driver's side. Push the DUAL button so that the indicator light is lit. Press the right arrow button to raise the temperature. Press the left arrow button to lower the temperature. The display will not show the passenger's temperature, only that of the driver. Indicators in the passenger control section will show passenger's side temperature relative to the driver's set temperature. D The amber light indicates the same temperature as set for the driver. D The red lights indicate a warmer temperature than that of the driver. that of the driver. D The blue lights indicate a cooler temperature than 3-5