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:

    Rolling Ding Factory
    I noticed another anomaly that didn't stand out in previous tests: a flawed interior handle design. Doors usually have an unlatch handle and a separate grab handle nearby for closing the door. The ...

    Cruise Control Messages
    CRUISE SET TO XXX This message displays when the cruise control is set and shows the speed it was set to. See Cruise Control for more information. ...

    License Plate Lamp
    To replace one of these bulbs: 1. Push the left end of the lamp assembly toward the right. 2. Turn the lamp assembly down to remove it from the fascia. A. Bulb Socket B. Bulb C. Lamp Assembly ...