Air Vents

Use the louvers located on the air vents to change the direction of the airflow.

To open a vent, move the thumbwheel to | . To close the vent, move the thumbwheel to Operation Tips.

Operation Tips

► Keep all outlets open whenever possible for best system performance.

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

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

    See also:

    Gasoline Octane
    If the vehicle has the 3.9L V6 engine (VIN Code 1) or the 3.9L V6 engine (VIN Code M), use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less tha ...

    Running the Vehicle While Parked
    It is better not to park with the engine running. But if you ever have to, here are some things to know. WARNING Idling a vehicle in an enclosed area with poor ventilation is dangerous. Engine ex ...

    Roadside Assistance Program
    U.S.: 1-800-252-1112 TTY Users: 1-888-889-2438 Canada: 1-800-268-6800 As the owner of a new Buick, you are automatically enrolled in the Roadside Assistance program. See Roadside Assistance Pr ...