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:

    Remote Vehicle Start
    For vehicles with this feature, the engine can be started from outside the vehicle. ...

    Horn
    Press on the steering wheel pad to sound the horn. ...

    Jump Start (eAssist Only)
    This display allows for on-board jump starting of the vehicle. See “Jump Starting (On-board with eAssist Only)” for more information. ...