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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    DVD-A (Audio) Display Buttons
    Once a DVD-A is inserted, the radio display menu shows several icons. Press the softkeys under any icon during DVD playback. See the icon list below for more information. A rear seat passenger can n ...

    Instrument Cluster
    English Light Duty Premium Shown. Metric, Uplevel, Base and Heavy Duty Similar. For vehicles with a DURAMAX® Diesel engine, see the DURAMAX® Diesel Supplement for more information. For vehicle ...

    Wheel Replacement
    Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts and wheel nuts should be replaced. If the wheel leaks air, replace it. S ...