See also:

Climate Controls
These systems control the heating, cooling, and ventilation. ...

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. ...

Safety
All-disc antilock brakes and daytime running lights are standard, but side-impact airbags are not available. ...