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:

    Shoulder Belt Height Adjuster
    The vehicle has a shoulder belt height adjuster for the driver and right front passenger. Adjust the height so the shoulder portion of the belt is on the shoulder and not falling off of it. The belt ...

    Control of a Vehicle
    Braking, steering, and accelerating are important factors in helping to control a vehicle while driving. ...

    Automatic Transmission
    If the vehicle is a hybrid, see the hybrid supplement for more information. Vehicles with an automatic transmission have an electronic shift position indicator within the instrument panel cluster. Th ...