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 ...

Maintenance Replacement Parts
Replacement parts identified below by name, part number, or specification can be obtained from your dealer. If your vehicle has a diesel engine, see the Duramax diesel supplement for more informa ...

Back–Up Lamp
Removal of the lamp assembly is not required to replace the back-up lamp bulb. To replace one of these lamps: 1. Open the liftgate. See Liftgate on page 2‑9. 2. Remove the interior trim acces ...