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:

    Center Console Storage
    Pull up on the lever, located on the front of the center console armrest, to slide it forward and backward. To open the armrest storage area, press the button located on the front of the armrest. ...

    Vehicle Reminder Messages
    ICE POSSIBLE DRIVE WITH CARE This message is displayed when ice conditions are possible. TURN WIPER CONTROL TO INTERMITTENT FIRST This message is displayed when attempting to adjust the intermitten ...

    Rear Doors (Extended Cab)
    Rear Doors (Extended Cab) To open a rear access door from the outside, first open the front door. Then, use the handle located on the front edge of the rear access door to open it. The rear acces ...