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:

    Sending a Number During a Call
    1. Press . The system responds with “Ready” followed by a tone. 2. Say “Dial”. The system responds with “Say a number to send tones” followed by a tone. 3. Say the number to send. ...

    First Engine Oil Change After Every 80 000 km/50,000 Miles
    • Engine air cleaner filter replacement. See Engine Air Cleaner/Filter. • Automatic transmission fluid change (severe service) for vehicles mainly driven in heavy city traffic in hot weathe ...

    Emergency
    With Automatic Crash Response, the built-in system can automatically connect to help in a crash even if you cannot ask for it. Push to connect to an Emergency Advisor. GPS technology is us ...