See also:

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. ...

Ending a Call
Press to end a call. ...

Electronic Transfer Case
The transfer case knob is located next to the steering column. Use the dial to shift into and out of four-wheel drive. ...