2002 Cadillac Escalade Owner's Manual - Page 184

Air Conditioning On hot days, open the windows long enough to let hot air inside escape. This reduces the time it takes for your vehicle to cool down. Then keep your windows closed for the air conditioner to work its best. The A/C button, below the mode knob, allows the air coming into your vehicle to be cooled. This setting is useful for normal cooling on hot days. When you use A/C with the recirculation button pressed in, turn off recirculation as soon as the vehicle reaches a comfortable interior temperature. Using A/C with the recirculation setting active allows the air inside your vehicle to be recirculated. This setting helps to maximize your air conditioner's performance and your vehicle's fuel economy. This setting also cools air the fastest and can be used to keep unwanted odors and/or dust from entering the vehicle. When using the air conditioner, turn off the recirculation setting and use the outside air setting after the vehicle reaches a comfortable interior temperature. When the right knob on the control panel is between floor and defrost, the recirculation feature will not function to reduce window fogging. Passenger Compartment Air Filter Your vehicle is equipped with a passenger compartment air filter, which filters outside air entering the vehicle. For information on replacing the filter see "Passenger Compartment Air Filter" in the Index. Heating The heater works best if you keep your windows closed while using it. On cold days, use the floor setting with the temperature knob in the red area. On cold days, approximately 32_F (-0_C) or lower, you may experience differences in how the transmission shifts until the engine is warm. This feature automatically reduces the time it takes for the engine to reach normal operating temperature and shortens the time it takes the heater to reach full output. If you use the engine coolant heater before starting your engine in cold weather, 20_F (-8_C) or lower, the heating system will produce warmer air faster to heat the passenger compartment. The use of an engine coolant heater also reduces the time it takes for the engine to reach normal operating temperature. For more information, see "Engine Coolant Heater" in the Index. 3-7