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 Door Locks
    (Unlock): Press to unlock the doors. (Lock): Press to lock the doors. See “Power Door Locks” in Vehicle Personalization . ...

    Voltmeter Gage
    When your engine is not running, but the ignition is in RUN, this gage shows your battery’s state of charge in DC volts. When the engine is running, the gage shows the condition of the ch ...

    Older Children
    Older children who have outgrown booster seats should wear the vehicle safety belts. The manufacturer's instructions that come with the booster seat state the weight and height limitations ...