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

    See also:

    Keys
    WARNING! Leaving children in a vehicle with the ignition key is dangerous for many reasons. Children or others could be badly injured or even killed. They could operate the power windows or ...

    Heated Mirrors
    The heated outside rearview mirrors turn on when the rear window defogger is on. (Rear Window Defogger): This button is on the climate control panel. See “Rear Window Defogger” under Dual Automa ...

    Control Buttons
    The knobs and buttons used to control the radio are: FM/AM: Press to choose between FM and AM. TUNE/TONE: Turn to search for stations.Press to enter the Tone menu. MENU/SELECT: Turn clockwi ...