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.

    See also:

    When the System Does Not Seem To Work Properly
    The RVC system may not work properly or display a clear image if: ○ The RVC is turned off. See “Turning the Rear Vision Camera System On or Off” earlier in this section. ○ It is da ...

    Driver Information Center (DIC)
    The vehicle has a Driver Information Center (DIC). The DIC displays information about this vehicle. It also displays warning messages if a system problem is detected. All messages will appear in the ...

    Weight of the Trailer Tongue
    The tongue load (A) of any trailer is very important because it is also part of the vehicle weight. The Gross Vehicle Weight (GVW) includes the curb weight of the vehicle, any cargo carried in it, and ...