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 ...

Manual Operation of Power Liftgate
To change the liftgate to manual operation, turn the mode switch to the OFF position. With the power liftgate disabled and all of the doors unlocked, the liftgate can be manually opened and closed. ...

Compressed Audio or Mixed Mode Discs
The radio plays discs that contain both uncompressed CD audio and MP3/WMA files depending on which slot the disc is loaded into. The DVD Player only reads uncompressed audio and ignores MP3/WMA files ...