Retrieve My Number

1. Push “OnStar ready.”.. System responds:

“OnStar ready.”.

2. Say “My Number.” System responds: “Your OnStar Hands-Free Calling number is.”

    See also:

    How the System Works
    When the vehicle is started, both outside mirror displays will briefly come on to indicate that the system is operating. While driving forward, the left or right side mirror SBZA display w ...

    Hazard Warning Flashers
    (Hazard Warning Flashers): Press this button located on top of the steering column, to make the front and rear turn signal lamps flash on and off. This warns others that you are having trouble. ...

    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 v ...