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:

    Dual Automatic Climate Control System
    For vehicles with this system, it controls the heating, cooling, and ventilation. Non-eAssist Vehicles A. Power B. Driver Temperature Control C. Defrost D. Fan Control E. Air Delivery Mode C ...

    Lane Departure Warning (LDW)
    The vehicle may have a Lane Departure Warning (LDW) system. Read this entire section before using the system. WARNING: The Lane Departure Warning (LDW) system does not steer the vehicle and is o ...

    Canceling a Remote Start
    To cancel a remote start, do one of the following: . Aim the RKE transmitter at the vehicle and press and hold until the parking lamps turn off. . Turn on the hazard warning flashers. . Turn t ...