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:

    Care of the CD and DVD Player
    Do not add any label to a disc. It could get caught in the CD or DVD player. If a disc is recorded on a personal computer and a description label is needed, try labeling the top of the recorded disc ...

    Climate Control Systems
    The heating, cooling, and ventilation in the vehicle can be controlled with this system. A. Fan Control B. Temperature Control C. Air Delivery Mode Control D. Air Conditioning E. REAR (Rear Cli ...

    Cruise Control
    Cruise Control : Press to turn cruise control on and off. The indicator comes on when cruise control is on. + RES: Press briefly to make the vehicle resume to a previously set speed, or press and ...