2008 GMC Envoy Owner's Manual - Page 162

Outlet Adjustment Use the air outlets located in the center and on the side of the instrument panel to direct the airflow. Use the thumbwheels near the air outlets to open or close off the airflow. Operation Tips • Clear away any ice, snow, or leaves from air inlets at the base of the windshield that could block the flow of air into the vehicle. • Keep the path under the front seats clear of objects to help circulate the air inside of the vehicle more effectively. • Use of non-GM approved hood deflectors can adversely affect the performance of the system. Check with your dealer/retailer before adding equipment to the outside of your vehicle. The temperature of the air coming through the rear outlets is determined by the front passenger temperature setting. Use the mode knob to change the direction of airflow (upper, bi-level or floor) to the rear seat area. PWR (Power): Press this button to turn the rear climate controls on or off. Rear Climate Control System Your vehicle has one of the following rear climate control systems. With either of these systems, the rear climate controls will be disabled when the front climate control system is in defrost. This occurs to provide maximum airflow to clear the windshield. H (Panel): This position distributes air from the rear console outlets. ) (Bi-level): This position distributes air from the second seat side floor outlets and the rear console outlets. 6 (Floor): This position distributes air from the second seat side floor outlets. 3-28