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:

    Reading Lamps
    There are front and rear reading lamps. The front reading lamps are located in the overhead console. The rear reading lamps are located in the headliner. or : Press to turn each lamp ...

    Servicing Your Airbag-Equipped Vehicle
    Airbags affect how your vehicle should be serviced. There are parts of the airbag system in several places around your vehicle. You do not want the system to inflate while someone is working on yo ...

    2.4L L4 Engine
    There is a engine coolant temperature warning light on the instrument panel cluster that indicates an overheated engine condition. See Engine Coolant Temperature Warning Light for more infor ...