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:

    Unlocked Door Anti Lock Out
    When on, this feature will keep the driver door from locking when the door is open. If off is selected, the Unlocked Door Anti Lock Out menu will be available and the door will lock as progr ...

    Interactive Drive Control System
    The vehicle may have the Interactive Drive Control System (IDCS). IDCS adapts to the driving style and preference of the driver within one of three driving modes: Standard: Use for normal city and ...

    Tire Rotation and Required Services Every 12 000 km/7,500 mi
    Rotate the tires, if recommended for the vehicle, and perform the following services. See Tire Rotation . Check engine oil level and oil life percentage. If needed, change engine oil and filt ...