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.

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    Questions and Answers About Safety Belts
    Q: Will I be trapped in the vehicle after a crash if I am wearing a safety belt? A: You could be — whether you are wearing a safety belt or not. Your chance of being conscious during and after a c ...

    Engine Compartment Fuse Block
    To remove the fuse block cover, squeeze the clips on the cover and lift it straight up. See Engine Compartment Overview on page 10‑6. Notice: Spilling liquid on any electrical component on ...

    When to Check Power Steering Fluid
    It is not necessary to regularly check power steering fluid unless you suspect there is a leak in the system or you hear an unusual noise. A fluid loss in this system could indicate a problem. Have th ...