OnStar®

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview  .

    See also:

    Maintenance When Trailer Towing
    The vehicle needs service more often when pulling a trailer. See the Maintenance Schedule for more information. Things that are especially important in trailer operation are automatic transmission ...

    SERVICE TRACTION CONTROL
    This message displays when there is a problem with the Traction Control System (TCS). The TCS/StabiliTrak warning light on the instrument panel cluster also comes on. When this message disp ...

    Shifting Into Park
    WARNING It can be dangerous to get out of the vehicle if the shift lever is not fully in P (Park) with the parking brake firmly set. The vehicle can roll. If you have left the engine running ...