2026 GMC Sierra 2500HD

The 2026 GMC Sierra 2500 HD is available in several trims, each catering to different performance needs and style preferences. The Pro trim is a robust, no-frills option designed for those who prioritize utility, offering durable vinyl flooring and essential features for work-focused drivers. Stepping up to the SLE trim brings enhanced comfort and tech features, including cloth seating, a 13.4-inch touchscreen infotainment system with Google built-in, and the convenient EZ Lift tailgate. The SLT trim offers further refinement with perforated leather seating, heated power-adjustable front seats, and the ProGrade Trailering System for superior towing. For off-road enthusiasts, the AT4 trim features off-road suspension with Rancho shocks, skid plates, and 20-inch gloss black wheels with all-terrain tires, ideal for rugged terrains. The Denali trim embodies luxury with chrome accents, 20-inch ultra-bright machined wheels, premium Forge leather seating, and an upgraded sound system. The new AT4X trim for 2026 takes off-roading to the next level, with a 1.5-inch suspension lift, Multimatic DSSV dampers, and 35-inch mud-terrain tires. For the ultimate in luxury, the Denali Ultimate trim offers full-grain leather seating with massage functionality, open-pore wood trim, and a signature Vader Chrome grille, along with the powerful Duramax diesel engine, ensuring the perfect combination of performance and luxury.

The 2026 GMC Sierra 2500 HD comes with two formidable engine options to suit a wide range of needs. The standard 6.6L V8 gas engine delivers 401 horsepower and 464 lb-ft of torque, providing the muscle required for everyday hauling and towing. For those demanding greater power, the 6.6L Duramax Turbo-Diesel V8 engine boasts 470 horsepower and 975 lb-ft of torque, designed to handle the toughest jobs with ease. Both engine options are paired with the Allison® 10-speed automatic transmission, delivering smooth and efficient shifting. The Sierra 2500 HD is available in both 2WD and 4WD configurations, allowing drivers to select the drivetrain that best suits their specific driving conditions.

The 2026 GMC Sierra 2500 HD is engineered for impressive towing and hauling capabilities. Equipped with the Duramax Diesel engine, the Sierra 2500 HD can tow up to 22,500 lbs when equipped with a gooseneck or fifth-wheel trailer, and up to 20,000 lbs with a conventional hitch. The 6.6L gas engine offers up to 16,000 lbs of conventional towing capacity, with even greater potential when using a gooseneck or fifth-wheel setup. Trailer Sway Control and an Integrated Trailer Brake Controller work together to enhance stability and ensure safety when hauling large loads. The Sierra 2500 HD's advanced suspension system provides a smooth ride even under heavy loads, and its precise steering ensures that handling is confident whether on highways or off-road paths.

Inside, the 2026 Sierra 2500 HD combines functionality with luxury. The SLT, AT4, and Denali trims offer leather seating that’s both durable and comfortable, with higher trims providing additional premium features. The Denali Ultimate trim elevates the interior with full-grain leather seating, complete with a massage function for added comfort. The truck’s 13.4-inch touchscreen infotainment system offers seamless connectivity with Apple CarPlay®, Android Auto™, and Google built-in, keeping you connected on the go. For an enhanced audio experience, the available Bose® premium sound system delivers exceptional sound quality. The spacious cabin provides ample room for passengers, while the MultiPro Tailgate offers versatility for cargo handling, making it easier to load and unload large items.

The 2026 GMC Sierra 2500 HD is equipped with a comprehensive suite of safety features to ensure a safe and confident driving experience. The GMC Pro Safety suite comes standard, including Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning, and a Rear Vision Camera System. For those who frequently tow, the ProGrade™ Trailering System provides enhanced camera views and trailer management capabilities via an in-vehicle app. Higher trims offer additional safety features, such as Trailer Blind-Spot Monitoring, Adaptive Cruise Control with Trailering, and Rear Cross-Traffic Alert. The HD Surround Vision camera system, available on the Denali and Denali Ultimate trims, provides a bird’s-eye view of the truck’s surroundings, offering enhanced visibility when maneuvering in tight spaces. These features combine to deliver a high level of security for both the driver and passengers, especially when towing or navigating challenging conditions.