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:

    Power Windows
    WARNING: Leaving children in a vehicle with the keys is dangerous for many reasons, children or others could be badly injured or even killed. They could operate the power windows or other contr ...

    Brake Fluid
    The brake master cylinder and, on manual transmission vehicles, the clutch hydraulic system use the same reservoir. See Engine Compartment Overview  for the location of the reservoir. The r ...

    Safety
    Side-impact airbags and antilock brakes are available. ...