OnStar Services
See also:
Head Restraints
The vehicle's front seats have adjustable head restraints in the outboard seating positions.
WARNING
With head restraints that are not installed and adjusted properly, there is a greater chance that ...
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. ...
Interior
Depending on the Silverado Hybrid's seating configuration, the crew cab can
seat five or six people. Interior features include:
Hybrid badge on tachometer
Fuel economy gauge
Optional navigation ...





