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:

    Using the Auxiliary Input Jack
    The radio system has an auxiliary input jack located on the lower right side of the faceplate. This is not an audio output; do not plug the headphone set into the front auxiliary input jack. How ...

    Using the Digit Store Command
    The digit store command allows a phone number to be stored by entering the digits individually. 1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. 2. ...

    Automatic Transmission
    The automatic transmission has a shift lever located on the console between the seats. The selected gear is also shown in the instrument cluster. P (Park): This position locks the drive wheels ...