Diagnostics

OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push OnStar Additional Information , and an Advisor can run a check.

    See also:

    Power Steerin
    If power steering assist is lost because the engine stops or the power steering system is not functioning, the vehicle can be steered but it will take more effort. ...

    Windshield Replacement
    Your vehicle is equipped with an acoustic windshield. If you ever have to have your windshield replaced be sure to get an acoustic windshield so you will continue to have the benefits an acoustic ...

    Head Restraint Adjustment
    Do not drive until the head restraints for all occupants are installed and adjusted properly. To achieve a comfortable seating position, change the seatback recline angle as little as necessary w ...