2026 GMC Sierra 2500HD Denali Crew Cab 4WD

This 2026 GMC Sierra 2500HD Denali in Onyx Black is built for heavy-duty performance, featuring a 6.6L Duramax V8 turbodiesel engine paired with a 10-speed automatic transmission and 4WD. The 4D Crew Cab layout ensures ample room for passengers and cargo, while the Denali Reserve and X31 Off-Road Packages add capability and premium touches. Inside this Sierra, jet black perforated leather-appointed seats provide comfort, with 12-way power adjustments and lumbar support for both front occupants. Heated and ventilated front seats, heated second-row outboard seats, and a heated steering wheel offer comfort in all conditions. The cabin includes a Bose 7-speaker sound system, a 15-inch head-up display, premium GMC infotainment with wireless Apple CarPlay/Android Auto, wireless charging, and multiple USB ports for connectivity. Safety features include HD Surround Vision, forward collision alert, lane departure warning, rear cross traffic alert, trailer side blind zone alert, ultrasonic park assist, following distance indicator, and hill descent control. Trailer-focused technology includes a bed view camera, hitch guidance with hitch view, in-vehicle trailering app, gooseneck/5th wheel prep, and trailer cam provisions. The exterior stands out with 20-inch ultra-bright machined wheels, a signature chrome Denali grille, LED lighting, spray-on bedliner with GMC logo, smoked amber roof marker lamps, power sunroof, and deep-tinted glass, giving this Sierra a commanding and refined presence.