2010 Cadillac DTS Owner's Manual - Page 204

Manual Operation Air Delivery Mode Control: Turn clockwise or counterclockwise to change the current airflow mode. Select one of the following: AUTO: Turns on the automatic delivery mode operation. 9 (Off): Turns the entire climate control system off. Outside air still enters the vehicle and is directed to the floor. The airflow direction and temperature can be adjusted, as indicated below. If the temperature is adjusted while the system is off, the display will light to show the current settings. F (Vent): Air is directed to the instrument panel outlets. * (Bi-Level): Air is divided between the instrument panel and the floor outlets. In automatic operation, cooler air is directed to the upper outlets and warmer air to the floor outlets. (Floor): Air is directed 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. w x (Driver's Temperature Controls): Press the up or down buttons next to the fan control to manually increase or decrease the temperature inside the vehicle. w x (Passenger's Temperature Controls): Press the up or down buttons next to the air delivery mode control to manually increase or decrease the temperature for the front passenger. If the passenger climate control system is off, pressing one of these buttons turns it on. 7 9 (Fan Control): Turn clockwise or counterclockwise to increase or decrease the fan speed. Turning this control completely counterclockwise will turn on the automatic fan operation. If the airflow seems low when the fan speed is at the highest setting, the passenger compartment air filter may need to be replaced. See Passenger Compartment Air Filter on page 4-44. 4-38 W (Floor/Defog): This mode clears the windows of fog or moisture. Air is directed to the floor outlets, with some air going to the side window outlets and windshield. When selected, the system turns off recirculation and runs the air conditioning compressor unless the outside temperature is at or below freezing. The recirculation mode cannot be selected while in the floor/defog mode.