See also:

2011 GMC Sierra 2500HD Review
The "professional grade" brand unveiled the 2011 GMC Sierra Heavy Duty lineup at the 2010 NTEA Work Truck Show. Most of the technical specifications of GM's HD pickups are identical, but ...

Fabric/Carpet
Start by vacuuming the surface using a soft brush attachment. If a rotating brush attachment is being used during vacuuming, only use it on the floor carpet. Before cleaning, gently remove as much o ...

Automatic Climate Control System
The vehicle's heating, cooling, defrosting, and ventilation can be controlled with this system. A. Fan Control B. AUTO (Automatic Operation) C. Air Delivery Mode Controls D. Front Defrost ...