2011 Cadillac DTS Owner's Manual - Page 198

automatic operation and places the system in manual mode. If in auto mode, pressing the down arrow will turn the rear climate control system off. Passenger Compartment Air Filter The passenger compartment air filter traps most of the pollen from the air entering the vehicle. The filter may need to be changed periodically. For how often to change the passenger compartment air filter, see Scheduled Maintenance on page 7‑3. « N ª (Air Delivery Mode Control): Press until AUTO appears on the display to place the system in automatic mode. When automatic operation is active, the system controls the air delivery mode. Manual Operation « A ª (Fan Control): Press to increase or decrease the fan speed. « b ª (Temperature Control): Press to increase or decrease the temperature for the rear seat passengers. Once the rear temperature setting is changed from following the front temperature setting, it will no longer follow changes to the front temperature setting until the front climate control AUX button resets it. « N ª (Air Delivery Mode Control): Press these buttons to change the air delivery mode. If in AUTO air delivery mode, pressing the up arrow button will cancel automatic operation and place the system in manual mode. Y (Vent): Air is directed to the upper outlets. % (Bi-Level): Air is divided between the upper outlets and the floor outlets. The access panel for the passenger compartment air filter is located under the hood near the windshield, on the passenger's side of the vehicle. [ (Floor): 4-40 Air is directed to the floor outlets.