Air Vents

Use the slider switch in the center of the outlet, to change the direction of the airflow. Use the thumbwheel near the outlet to control the amount of airflow or to shut off the airflow.

Keep all outlets open whenever possible for best system performance.

Operation Tips

• Clear away any ice, snow, or leaves from the air inlets at the base of the windshield that can block the flow of air into the vehicle.

• Use of non-GM approved hood deflectors can adversely affect the performance of the system.

• Keep the path under all seats clear of objects to help circulate the air inside the vehicle more effectively.

• If fogging reoccurs while in vent or bi-level modes with mild temperature throughout the vehicle, turn on the air conditioner to reduce windshield fogging.

    See also:

    Dual Automatic Climate Control System
    The heating, cooling, and ventilation in the vehicle can be controlled with this system. A. Fan Control B. AUTO (Automatic Operation) C. Defrost D. Recirculation E. REAR (Rear Climate Control) ...

    Cruise Control
    With cruise control, the vehicle can maintain a speed of about 40 km/h (25 mph) or more without keeping your foot on the accelerator. Cruise control does not work at speeds below 40 km/h (25 mph). ...

    How to Add Coolant to the Coolant Surge Tank for Gasoline Engines
    If the vehicle has a diesel engine, see “Cooling System” in the Duramax Diesel Supplement for the proper coolant fill procedure. WARNING You can be burned if you spill coolant on hot engine part ...