See also:

Cruise Control Light
The cruise control light is white whenever the cruise control is set, and turns green when the cruise control is active. The light turns off when the cruise control is turned off. See Cruise Cont ...

Ultrasonic Parking Assist
If available, Ultrasonic Rear Parking Assist (URPA) system uses sensors on the rear bumper to assist with parking and avoiding objects while in R (Reverse). It operates at speeds less than 8 km/h (5 m ...

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. ...