2006 Cadillac DTS Owner's Manual - Page 177

? (Recirculation): Press this button to keep outside air from coming in the vehicle. It can be used to prevent outside air and odors from entering your vehicle or to help cool the air inside your vehicle more quickly. Press this button to turn the recirculation mode on or off. When the button is pressed, an indicator light will come on. If the PASS button is pressed to turn the Passenger temperature setting off, the driver's temperature knob will control the temperature for the entire vehicle. AUX: Press this button to turn the rear climate control fan on for automatic operation. After the AUX button is pressed, the indicator light will come on. Press the button again to turn the auxiliary fan off. ǻ (Driver's Temperature Controls): Press these buttons next to the fan control to manually increase or decrease the temperature inside your vehicle. ǻ (Passenger's Temperature Controls): Press these buttons next to the mode control to manually increase or decrease the temperature for the front passenger. If the passenger's climate control system is off, pressing one of these buttons will turn it on. PASS (Passenger's Climate Control): Press this button to turn the passenger's climate control systems on or off. The temperature selected by the front passenger will also control the rear system air temperature unless the rear seat passengers select their own comfort setting. # (Air Conditioning): Press this button to override the automatic system and turn the air-conditioning system on or off. When in AUTO, the air-conditioning compressor will come on automatically, as necessary. The air-conditioning system removes moisture from the air, so you may notice a small amount of water dripping underneath your vehicle while idling or after turning off the engine. This is normal. 3-47