2009 Cadillac DTS Owner's Manual - Page 188

Manual Operation 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 6-4. «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. [ (Floor): Air is directed to 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. 3-48