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 Advisor can run a check., and an Advisor can run a check.

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    Before Leaving on a Long Trip
    To prepare your vehicle for a long trip, consider having it serviced by your dealer/retailer before departing. Things to check on your own include: • Windshield Washer Fluid: Reservoir full? Win ...

    Engine Compartment Overview
    2.4L L4 Engine A. Engine Air Cleaner/Filter. B. Engine Cover. C. Engine Cooling Fans (Out of View). See Cooling System. D. Engine Oil Fill Cap. See Engine Oil. E. Engine Oil Dipstick (Out o ...

    Using the Directory Command
    The directory command lists all of the name tags stored by the system. To use the directory command: 1. Press . ► For vehicles without a navigation system, the system responds “Ready,” f ...