Vehicle and Power Issues

OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.

    See also:

    Vehicle Settings
    See Vehicle Personalization for more information. ...

    Electric Power Steering
    If your vehicle has electric power steering it does not have power steering fluid. Regular maintenance is not required. If power steering assist is lost due to a system malfunction, the vehic ...

    Comfortable, quiet ride
    In addition to delivering surprising performance, Rainier's refined powertrains and precision-engineered chassis system contribute to a comfortable, quiet ride - a Buick distinction throughout its ...