Special Application Services

. Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi.

- Have underbody flushing service performed once a year.

    See also:

    Checking Coolant
    The vehicle must be on a level surface when checking the coolant level. The engine coolant reservoir is located in the engine compartment on the driver side of the vehicle. See Engine Compar ...

    Control Buttons
    The knobs and buttons used to control the radio are: FM/AM: Press to choose between FM and AM. TUNE/TONE: Turn to search for stations.Press to enter the Tone menu. MENU/SELECT: Turn clockwi ...

    Voice Recognition
    The navigation system's voice recognition allows for hands-free operation of the navigation system, audio system, and OnStar (if equipped) features. Voice recognition can be used when the ignit ...