1999 Cadillac Catera Owner's Manual - Page 143

yellowblue DEFROST: Press this button to quickly remove fog or frost from the windshield (the blower works in high-speed). This setting sends most of the airflow to the windshield with only a small amount to the floor outlets. FAN SPEEDS: Press the driver's side TEMP/AUTO knob to set the fan speed for AUTO. 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 assure it 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 air from blowing into the passenger compartment. If you want the blower fan at a high speed, press the up arrow button until you reach the highest position of the display. If you want the blower fan at a low speed, press the down arrow button until the lowest position is displayed. ON/OFF: Press this button to turn the system off. Press this button again to turn the system back on. Turning the climate control system on in this way will recall all previous manually set mode settings. If the system is turned on by pushing the driver's TEMP/AUTO knob for automatic operation, all of the previous manually set mode settings will be changed back to the fully automatic mode. AC: Press this button to turn the air conditioning on and off. The system will cool and dehumidify the air inside the vehicle. In the automatic operation mode, the display will show AC OFF when the air conditioning has been turned off. RECIRCULATION: Press this button to limit the amount of fresh air entering your vehicle. This is helpful to limit odors entering your vehicle. In the automatic operation 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 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