Close-up of an infotainment system featuring a touchscreen radio display with FM, AM, XM, and AUX options, flanked by buttons and dials. Below are dual-zone climate controls and control knobs, set within dark wood trim on the console.
View Dimensions of the 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Regular Cab Long Box
View 19 images of the 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Regular Cab Long Box