2025 GMC Sierra 2500 HD

Sierra 2500 HD opens with the purposeful Pro, its animated LED signature lighting framing a dark-mesh grille—burly and work-oriented. Advance to SLT for upscale enhancements, layering chrome on the MultiPro™ Tailgate and offering gloss-black 20-inch rims, LED animated taillamps and fog lamps, and effortless rain-sensing wipers. AT4 swaps polish for grit with red recovery hooks and underbody protection, while the new AT4X intensifies the stance with a factory lift, 35-inch Goodyear Territory M/T tires, and heavy-duty skid plates to take on extremes. Denali turns heads with ultra-bright 20-inch machined aluminum wheels and interior upgrades, but the Denali Ultimate crowns the range with exclusive Vader Chrome trim and grille and mirror-like 20-inch wheels that glint even under prairie dusk. Every trim offers extensive customization and convenience options to suit your tastes and needs.

Beneath the hood lies a choice of 2 robust powertrains to support your mission. The standard 6.6L gasoline V8 powers out 401 hp and 464 lbs.-ft. of torque through a heavy-duty version of the Allison® 10-speed automatic transmission, proving that naturally aspirated muscle still rules jobsite sprints. Those pulling cattle want the available Duramax® 6.6L Turbo-Diesel: 445 hp, a mountain-moving 975 lbs.-ft. of low-end torque, and seamless shifts to get you over any obstacle.

Frame-mounted tow hooks are only the beginning. A boxed-steel chassis, independent torsion-bar front suspension, and the Tow/Haul mode within the Traction Select System support a 36,000-lb. towing capacity with the diesel engine. The cargo bed volume spans 69.5 to 83.5 cubic feet. Add the ProGrade™ Trailering System, up to 14 camera views including the innovative Transparent Trailer View, and the job is simple and safe. When venturing off-road, the AT4 and AT4X trims are fortified with brawny suspension, twin-tube shocks, and available e-locking differentials. This truck is as adaptable as it is reliable and fun to drive.

This cabin caters to your comfort, convenience, and connectivity. A 13.4-inch tablet-style center touchscreen running Google Built-In, wireless smartphone integration to connect to your apps and playlists, and navigation is flanked by a 12.3-inch digital Driver Information Center that reconfigures at a swipe. Premium trims indulge you with leather upholstery and available heated, ventilated, and 16-way massaging front seats to comfort you after hard days, while Crew-Cab models supply limo-like rear legroom for up to 6 occupants. Hidden storage, a versatile center console, Best-in-Class head and legroom, and wireless charging give your cabin a clutter-free, wide-open feel. Open-pore wood, patterned aluminum, and Bose® Premium audio round out an environment that banishes the old “work truck” stereotype.

Every Sierra 2500 HD is equipped with GMC Pro Safety: Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning, Front Pedestrian Braking, IntelliBeam automatic high beams, Buckle-to-Drive, and a Following Distance Indicator work silently behind the scenes. Sierra HD Pro Safety Plus layers on Rear Cross-Traffic Alert, Trailer Side Blind Zone Alert, HD Surround Vision, and the Safety Alert Seat, funneling information through vibrations rather than intrusive chimes. The available 15-inch multicolor Head-Up Display keeps speed, navigation, and trailer brake gain inside your line of sight, because vigilance should never compete with the view over a hood this tall.