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:

    Starting the Vehicle
    With this feature the engine can be started from outside of the vehicle. 1. Aim the RKE transmitter at the vehicle. 2. Press and release . 3. Immediately after completing Step 2, press and hold ...

    Ending a Call
    Press to end a call. ...

    Playing an MP3/WMA File From a Disc (In Either the DVD or CD Slot)
    If a disc is inserted into the top DVD slot, the rear seat operator can turn on the video screen and use the remote control to navigate the CD (tracks only). (Tune): Turn to select MP3/WMA files. ...