2007 GMC Acadia Owner's Manual - Page 212

Mode Knob The right knob on the control panel lets you choose the direction of the air flow. Rear Air Conditioning and Heating System and Electronic Climate Controls If your vehicle has this rear climate control system there are rear seat audio controls located in the center console. The rear system can be controlled through the AUX button on the front climate control panel. Press the AUX button to turn the rear climate control system on or off. An indicator light near the AUX button comes on when the rear climate control system is on. The direction, temperature, and speed of the airflow for the rear of the vehicle will be the same as those set for the front of the vehicle. Use the controls located in the rear of the front console, to independently control the air flow for the rear of the vehicle separately from that of the front of the vehicle. To turn the system on, press any of the rear air conditioning control buttons. To turn the system off, press and hold the C button. H (Vent): This setting directs the air through the headliner outlets. ) (Bi-Level): This setting directs the air through the rear floor outlets under the third row seat, as well as the headliner outlets. The flow can be divided between headliner and floor outlets depending upon where the knob is placed between the settings. 6 (Floor): This setting directs the air through the floor outlets. The rear system floor outlets are located under the third row seats. 212