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:

    Playing a CD
    Insert a CD partway into the slot, label side up. The player pulls it in and the CD should begin playing. If the ignition or radio is turned off while a CD in the player it stays in the player. W ...

    How to Reset the Engine Oil LifeSystem
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    Safety Belts
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