New for 2011

The Sierra Hybrid gets GM's OnStar 9.0 telematics system that GM says provides better voice recognition. GM also said they have worked to cut down on the amount of wind noise occupants hear.

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    Portable Audio Devices
    This vehicle may have an auxiliary input located on the radio faceplate and a USB port located in the center console or on the instrument panel. External devices such as an iPod®, laptop computer, ...

    Overview
    GMC unveiled the all-new 2007 Yukon and Yukon Denali full-size SUVs Oct. 5. They are based on GM's all-new full-size SUV family, which features distinctive styling, spacious and refined interiors, ...

    Exiting the Feature Settings Menu
    The feature settings menu will be exited when any of the following occurs: • The vehicle is no longer in ON/RUN. • The trip/fuel or vehicle information DIC buttons are pressed. • The end of t ...