1998 Cadillac DeVille Owner's Manual - Page 172
1998 Cadillac DeVille Manual
Page 172 highlights
Manual Operation 0 RECIRCULATION: Press this button tolimit the is amount of fresh air entering your vehicle. This helpful when you are trying tocool the air quicklyor limit odors entering your vehicle. In the AUTO mode, the system will use recirculation as necessary to cool the air. Pressing the recirculation button will change the operation to a manual mode and air will recirculate the non-stop. Press this button again to turn the off recirculation feature. If you notice the windows fogging, press the exit recirculation button to the recirculation mode. weather to save fuel. The AUTO setting is used when it's warm outside and you need cool thea r in order to to i maintain a selected temperature and blower speed. FAN SPEEDS: Press the button with the symbol fan on it until AUTO is displayed on the screen. At this setting, the fan speed is automatically controlled. If it is cold outside, the blower may not run in the maximum high fan speed right away. The system checks the temperature of the engine coolant to assureit is warm enough to provide heat. When the engine coolant is warm, the controller allows the fan to gradually increase . to a higher speed. This prevents cold from blowing ar i If into the passenger compartment. you want the blower fan at a high speed, press the up arrow button until you see HI on the display. If you want the speed to be fan fan automatic, but you like the speed tobe higher than HI the AUTO setting, press the fan symbol button until AUTO is shown on the display. If you want the blower fan at a low speed, press the down arrow button until LO is shown on the display. you want thefan speed to run If lower than the AUTO setting, press the button until AUTO LO is shown on the display. OFF: Press this button to turnthe system off. Fresh air will continueto flow throughthe vehicle, and the system will try to maintain previously set the temperature. The outside temperature will show in the display when the system is off. DEFOG: Press this button to divide the air between the windshield andthe heater outlets.This is useful when fog appears on the windshield orside glass due to sudden rain or snowy conditions. AUTOECON: Press this button to switch between AUTO and ECON. The ECON setting attempts to keep a r at a selected temperature, however, does not remove i it i. humidity from thea r Use this settingin cold or cool DEFROST Press this button to quickly remove fog or frost from the windshield. This setting sends most of the airflow to the windshield with only a small amount to the floor outlets. 3-5