1996 Cadillac Eldorado Owner's Manual - Page 150

If your vehicle is sitting out ona hot day and you have it set on AUTO, the air will first flow outthe floor air outlets for a few seconds. That is normal. This is to expel hot air in the airoutlets. As the air is cooled, the airflow will move through the A/C outlets. If you start your vehicle with the fan setting on HI, it will skip the A/C Purge. To avoid blowing cold air in cold weather, the system will delay turning on the fan until warm air is available. The length of delay depends on the outside air temperature, engine coolant temperature or the time since the engine was last started. As the coolant warms up, the blower fan speed will gradually increase and air will flow from the heater outlets, with some airflow to the windshield to prevent fogging under most normal conditions. Manual Operation RECIRCULATION: Press this button to limit the amount of fresh air entering your vehicle. This is helpful when you are trying to cool the air quickly or 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 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. If you leave your vehicle, the system will remember the control setting the next time you start your engine, except for recirculation and defrost. Each ignition cycle cancels recirculation, whereas, DEFROST will change to AUTO when the ignition is shut off and then turned back on. OFF: Press this button to turn the system off. Fresh air will continue to flow through the vehicle, and the system will try to maintain the previously set temperature. The outside temperature will show in the display when the system is off. DE-ICE (Option): Pressing this button helps to remove ice orfrost from the windshield. See "Heated Windshield" later in this section. 3-3