2008 Cadillac DTS Owner's Manual - Page 183

F (Vent): Turn the control to this mode to direct air to the instrument panel outlets. ? (Recirculation): * (Bi-Level): Turn the control to this mode to direct approximately half of the air to the instrument panel outlets and most of the remaining air to the floor outlets. In automatic operation, cooler air is directed to the upper outlets and warmer air to the floor outlets. Turn the control to this mode to direct most of the air to the floor outlets with some air directed to the side window outlets and the windshield. If recirculation is selected, it only stays on for three minutes to reduce windshield fogging. The mode control can also be used to select the floor/ defog mode. In this mode, the system automatically uses outside air. Information on defogging and defrosting can be found later in this section. 7 (Floor): Press this button to recirculate cabin air through the vehicle. An indicator light below the button comes on to show that this mode is activated. This mode can be used to prevent outside air and odors from entering the vehicle or to help cool the air inside the vehicle more quickly. This mode cannot be selected while in the defog or defrost modes. If you try to select the recirculation mode, the indicator light flashes three times and turns off. Operation in this mode during periods of high humidity and cool outside temperatures may result in increased window fogging. If window fogging is experienced, select the defrost mode. wx (Driver's Temperature Controls): Press these buttons next to the fan control to manually increase or decrease the temperature inside the vehicle. wx (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 turns it on. :(Outside Air): Press this button to allow outside air to come into the vehicle. Press this button to turn the outside air mode on or off. When the button is pressed, the indicator light comes on. Pressing the recirculation button will cancel this mode. 3-43