Black plate (44,1)Cadillac STS Owner Manual - 2011The display can be changed from English to metricunits through the Driver Information Center (DIC). SeeDIC Operation and Displays on page 4‑70.Manual OperationO (Driver's Temperature Control): Press to turn theentire climate control system on or off. Turn the knob toincrease or decrease the temperature inside thevehicle.O (Passenger's Temperature Control): Press to turnthe passenger climate control system on. Turn the knobto increase or decrease the temperature for the frontpassenger only. The passenger side power button doesnot turn off the climate control system. The system isset to the same setting as the driver.y A z (Fan Control): Press to increase or decreasethe fan speed. This cancels automatic operation andlets the amount of airflow be adjusted manually. PressAUTO to return to automatic operation.If the airflow seems low when the fan speed is at thehighest setting, the passenger compartment air filtermay need to be replaced. For more information, seePassenger Compartment Air Filter on page 4‑50 andScheduled Maintenance on page 7‑3.yN z (Air Delivery Mode): Press to change thedirection of the airflow in the vehicle. This cancelsautomatic operation and lets the air delivery mode beadjusted manually. Press AUTO to return to automaticoperation.The outboard air outlets always receive airflowregardless of the mode selected. See Outlet Adjustmenton page 4‑48 to change this airflow from the outboardoutlets.To change the current mode, select one of the following:Y (Vent): Air is directed to the instrument panel outlets.\ (Bi-Level): Air is divided between the instrumentpanel outlets and the floor outlets. In automaticoperation, cooler air is directed to the upper outletsand warmer air to the floor outlets.[ (Floor): Air is directed to the floor outlets, with someair directed to the windshield and side windows.4-44