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:

    Storing Radio Station Presets
    There are a few ways to store presets. Up to 36 preset stations can be stored. AM, FM, and XM, if equipped, can be mixed. 1. From the AM, FM, or XM main page, press and hold one of the pre ...

    Storing a Station as a Favorite
    Up to 36 preset stations can be stored. 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 1-2-3 (favor ...

    Manual Foldaway Mirrors
    These mirrors can be folded inward to prevent damage when going through an automatic car wash. To fold, pull the mirror toward the vehicle. Push the mirror outward to return it to the origin ...