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:

    Coverage
    Services are provided up to 5 years/160 000 km (100,000 mi), whichever comes first. In the U.S., anyone driving the vehicle is covered. In Canada, a person driving the vehicle without permission from ...

    Adjusting the Speakers (Balance/Fade)
    BAL/FADE (Balance/Fade): To adjust the balance or fade: 1. Press until the speaker control tabs display. 2. Continue pressing to highlight the tab, or press the softkey under the tab. 3. To adju ...

    Mixed-Band Presets
    Each page can store six preset stations. The presets within a page can be from different radio bands. To scroll through the pages, press the FAV button located on the faceplate or the FAV screen b ...