2009 Chevrolet Suburban 2500 Owner's Manual - Page 213

O (On/Off): Press to turn the climate control system on or off. Outside air still enters the vehicle, and is directed to the floor. This direction can be changed by pressing the mode button. Recirculation can be selected once you have selected vent or bi-level mode. The temperature can also be adjusted using either temperature button. If the air delivery mode or temperature settings are adjusted with the system off, the display illuminates briefly to show the settings and then returns to off. The system can be turned back on by pressing either O , D , C , # , the defrost or the AUTO button. A. B. C. D. E. F. Fan Control AUTO Defrost Recirculation REAR Air Delivery Mode Control G. Driver Temperature Control H. Display I. Power Button J. Rear Window Defogger K. Air Conditioning L. PASS M. Passenger Temperature Control Driver and Passenger Side Temperature Control The driver and passenger side temperature buttons are used to adjust the temperature of the air coming through the system on the driver or passenger's side of the vehicle. The temperature can be adjusted even if the system is turned off. This is possible since outside air always flows through the system as the vehicle is moving forward unless it is set to recirculation mode. See "Recirculation" later in this section. Press the + or − buttons to increase or decrease the cabin temperature. The driver side or passenger side temperature display shows the temperature setting decreasing or increasing. 3-25