OnStar®

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview.

    See also:

    Exterior
    Styling of the DTS is "more architectural and linear," said Gary Cowger, former president of General Motors North America, during its initial appearance. The new model's styling evokes C ...

    Rear-Seat Pass Through
    If the vehicle has the rear-seat pass through door, the trunk can be accessed through the rear seat. This is useful when transporting long items. To open the door, pull down the rear seat ar ...

    Off-Road Recovery
    The vehicle's right wheels can drop off the edge of a road onto the shoulder while driving. Follow these tips: 1. Ease off the accelerator and then, if there is nothing in the way, steer t ...