Black plate (42,1)Cadillac DTS Owner Manual - 2011Manual Operation« A ª (Fan Control): Press to increase ordecrease the fan speed.« b ª (Temperature Control): Press to increase ordecrease the temperature for the rear seat passengers.Once the rear temperature setting is changed fromfollowing the front temperature setting, it will no longerfollow changes to the front temperature setting until thefront climate control AUX button resets it.« N ª (Air Delivery Mode Control): Press thesebuttons to change the air delivery mode. If in AUTOair delivery mode, pressing the up arrow button willcancel automatic operation and place the system inmanual mode.Y (Vent): Air is directed to the upper outlets.% (Bi-Level): Air is divided between the upper outletsand the floor outlets.[ (Floor): Air is directed to the floor outlets.Passenger Compartment Air FilterThe passenger compartment air filter traps most of thepollen from the air entering the vehicle. The filter mayneed to be changed periodically. For how often tochange the passenger compartment air filter, seeScheduled Maintenance on page 7‑3.The access panel for the passenger compartment airfilter is located under the hood near the windshield, onthe passenger's side of the vehicle.4-42