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:
Navigation System
If the vehicle has a navigation system, use of the system may result in the storage of destinations, addresses, telephone numbers, and other trip information. Refer to the navigation manual for inform ...
Rear Seats
The vehicle's rear seat has head restraints in the outboard seating positions
that cannot be adjusted. Rear outboard head restraints are not designed to be removed. ...
Oil Pressure
This display shows the oil pressure in either kilopascals (kPa) or pounds per square inch (psi). ...





