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:

    Using Universal Home Remote
    Press and hold the appropriate button for at least half of a second. The indicator light will come on while the signal is being transmitted. ...

    Vehicle Information Menu Items
    Press MENU on the turn signal lever until Vehicle Information Menu is displayed. Use to scroll through the following menu items: • Unit • Tire Pressure • Jump Start (eAssist Only) • ...

    If the Off Indicator Is Lit for an Adult-Size Occupant
    If a person of adult-size is sitting in the front outboard passenger seat, but the off indicator is lit, it could be because that person is not sitting properly in the seat. Use the follow ...