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:

    Tire Pressure Monitor
    This vehicle may have a Tire Pressure Monitor System (TPMS). The Tire Pressure Monitor alerts you when a significant reduction in pressure occurs in one or more of the vehicle’s tires ...

    LaCrosse in the Market
    The LaCrosse isn't a product of the yesteryear thinking that drove GM to build a competitor to whatever Lincoln was building across town. That's the sort of culture that got GM into trouble in the ...

    Driving Through Flowing Water
    CAUTION: Flowing or rushing water creates strong forces. If you try to drive through flowing water, as you might at a low water crossing, your vehicle can be carried away. As little as six inch ...