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:

    Global Positioning System (GPS)
    • Obstruction of the GPS can occur in a large city with tall buildings; in parking garages; around airports; in tunnels, underpasses, or parking garages; or in an area with very dense tr ...

    Engine Air Cleaner/Filter
    Engine Air Cleaner/Filter ...

    XM Categories
    XM channels are organized in categories. Removing or Adding Categories Channels in a category that have been removed can still be accessed by using thes© or ¨\buttons, or the TUNE/MENU knob. ...