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:

    Object Detection System Messages
    FORWARD COLLISION ALERT OFF If your vehicle has the Forward Collision Alert (FCA) system, this message may display if the FCA system cannot activate due to a temporary condition. See Forward Coll ...

    Storing a Radio Station as a Favorite
    To store a station as a favorite: 1. Tune to a radio station. 2. Press the FAV button to display the page where the station will be stored. 3. Press and hold one of the six softkeys until a beep so ...

    If the Vehicle Is Stuck
    Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. See “Rocking Your Vehicle to Get It Out” later in this section. If the vehicle has a traction sys ...