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:

    Steering Wheel Controls
    Some audio steering wheel controls can be adjusted at the steering wheel. : Press to interact with the available Bluetooth or OnStar systems. : Press to silence the vehicle speakers only. Pre ...

    If the On Indicator is Lit for a Child Restraint
    If a child restraint has been installed and the on indicator is lit: 1. Turn the vehicle off. 2. Remove the child restraint from the vehicle. 3. Remove any additional items from the seat such as bl ...

    Manual Mirrors
    Vehicles with outside manual mirrors can be adjusted by moving the mirror up and down or left to right to see a little of the side of the vehicle, and have a clear view behind the vehicle. Using hood ...