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.

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    Head Restraints
    Adjust the head restraint so that the top of the restraint is at the same height as the top of the occupant’s head. This position reduces the chance of a neck injury in a crash. Pull the hea ...

    Time and Date Settings
    From the Time & Date Settings screen button, press to display the Time & Date Settings menu. Set Time: Press the up or down arrows to increase or decrease the Hours and Minutes displa ...

    Endless entertainment options
    Terraza is offered with a wide choice of passenger entertainment features, which can be a welcome addition on long trips while giving owners the ability to interface between the vehicle and one's ...