2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box: Audio system and climate control panel with wood trim

Close-up showing a touchscreen audio system with FM, XM, and AUX options, flanked by wood trim, accompanied by dual-zone climate control knobs and buttons in a vehicle dashboard.

View Dimensions of the 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box

View 21 images of the 2011 GMC Sierra 2500HD III (GMT900, facelift 2011) Extended Cab Long Box

Popular Comparisons: 1972 Mercedes-Benz S-class SE vs 2015 Audi R8 II Coupe, 2020 Mercedes-Benz GLA vs 2024 V-class Compact, 2018 GMC Terrain II vs 2013 Toyota RAV4 IV