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:

    Passenger Airbag Status Indicator
    The vehicle has a passenger sensing system. See Passenger Sensing System  for important safety information. The instrument panel has a passenger airbag status indicator. When the vehicle i ...

    Rocking Your Vehicle to Get It Out
    First, turn the steering wheel left and right. That will clear the area around the front wheels. Then shift back and forth between REVERSE (R) and a forward gear, spinning the wheels as little ...

    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 ...