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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    Radio(s)
    Radio with USB, CD, and DVD (MP3) : Press to turn the system on and off. Turn to increase or decrease the volume. BAND: Press to choose between FM, AM, or XM™, if equipped. : Select ra ...

    Under the Hood
    The Savana can be equipped with one of four engines: a 195-horsepower, 4.3-liter V-6; a 285-hp, 4.8-liter V-8; a 295-hp, 5.3-liter V-8; or a 300-hp, 6.0-liter V-8. Each engine teams with a four-sp ...

    Manual Lumbar
    Manual Lumbar If equipped, increase or decrease manual lumbar support by turning the knob forward or rearward. ...