1998 Cadillac Eldorado Owner's Manual - Page 161

% FAN SPEEDS: Press the button with the fan symbol on it until AUTO is displayed on the screen. At this setting, the fan speed is automatically controlled. If it is cold outside, theblower may not run in the maximum high fan speed right away. The system checks it the temperature of the engine coolant to assure is warm enough to provide heat. When the engine coolant is warm, the controller allows the fan gradually to increase to a higher speed. This prevents cold air from blowing into thepassenger compartment. If you want the blower fan at a high speed, press up arrow button the until you see HI on the display. If you want the fan speed to be automatic, you like the fanspeed to be but higher than the AUTO setting, pressthe fan symbol button until HI AUTOis shown on the display. If you want the blower fan at a low speed, pressthe down arrow button until LO is shown on the display. If you want thefan speed to run lower than theAUTO setting, press the button until LO AUTO is shown on the display. OFF: Press this button to turn the system off. Fresh air will continue to flow through the vehicle, and the set system will try to maintain the previously temperature. The outside temperature will show the on display when the system is OFF. AC: Press this button to turn the air conditioningon and off. The system will cool and dehumidify the air inside the vehicle. In the AUTO mode, the display will show that AC is active,but the air conditioning compressor only operates when the system determines it needed. is RECIRCULATION: Press this button to limit the amount of fresh air entering your vehicle. This ishelpful when you are trying to cool the air quickly limit odors or entering your vehicle. In the AUTO mode, the system will use recirculation as necessary cool the air. to Pressing therecirculation button will change the operation to a manual mode and the air will recirculate non-stop. Press this button again to turn off the recirculation feature. If you notice the windows fogging, press the recirculation button to exit the recirculation mode. 3-5