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:

    Compact Spare Tire
    WARNING! Driving with more than one compact spare tire at a time could result in loss of braking and handling. This could lead to a crash and you or others could be injured. Use only one co ...

    Dual Automatic Climate Control System
    The heating, cooling, and ventilation for the vehicle can be controlled with this system. For vehicles with the remote start feature and it is activated, the climate control system heats or cools ...

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