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:

    Instrument Panel Cluster
    The instrument panel cluster is designed to show how the vehicle is running. It shows how fast the vehicle is going, how much fuel has been used, and many other things needed to drive safely and ...

    Headlamps, Front Turn Signal and Parking Lamps
    Base Headlamp Assembly (Passenger Side Shown, Driver Side Similar) A. High-Beam Headlamp B. Turn Signal Lamp C. Low-Beam Headlamp/Daytime Running Lamp (DRL) D. Parking Lamp E. Sidemarker ...

    Checking the Restraint Systems
    Safety Belts Now and then, check that the safety belt reminder light, safety belts, buckles, latch plates, retractors, and anchorages are all working properly. Look for any other loose or damage ...