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:

    What to Use
    To determine what kind of fluid to use, see Recommended Fluids and Lubricants. Always use the proper fluid. ...

    Sending a Stored Name Tag During a Call
    1. Press . The system responds with “Ready” followed by a tone. 2. Say “Send name tag.” The system responds with “Say a name tag to send tones” followed by a tone. 3. Say the name ...

    Steering Wheel Controls
    If equipped, these controls are located on the right side of the steering wheel. : Press to go to the next radio station stored as a favorite, or the next track, if a CD/DVD is playing. ...