2008 GMC Acadia Owner's Manual - Page 180

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 in 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, except the C button. To turn the system off, press and hold the C button. Rear Climate Control with Rear Seat Audio Controls Manual Operation DC (Fan): The fan buttons on the rear seat audio control panel let you manually adjust the fan speed. Press D to increase airflow and C to decrease airflow. +/− (Increase/Decrease Temperature): These buttons select the temperature of the air flowing into the rear passenger area. Press the + button for warmer air and press the − button for cooler air. The temperature settings will display in 0-12 increments, going from the coolest (0) to the warmest (12) setting. 3-38