2025 GMC Sierra 2500HD

The Sierra 2500 HD begins with the Pro trim, designed for those who need durability above all. It includes bold LED headlights, LED daytime running lights, and a sturdy cargo bed, perfect for utility-focused tasks. Stepping up to the SLE and SLT trims, you’ll find more sophisticated features like power-folding trailering mirrors, rain-sensing wipers, and the innovative MultiPro™ Tailgate that provides added versatility. For off-road enthusiasts, the AT4 and AT4X trims come equipped with heavy-duty skid plates, factory-installed suspension lifts, and the option for 35-inch Goodyear® mud-terrain tires to help you take on Arizona’s toughest trails. The AEV Edition pushes performance even further with race-inspired wheels and exclusive steel components, combining power with style. At the height of luxury, the Denali and Denali Ultimate trims deliver premium features like the signature chrome grille, polished aluminum wheels, and the Denali Ultimate’s Vader Chrome grille, illuminated power steps, and ultra-bright wheels.

The 2025 Sierra 2500 HD offers two formidable engine options. The 6.6L V8 gas engine produces 401 horsepower and 464 lb-ft of torque, giving you robust power for any task. For those needing maximum towing and hauling capacity, the Duramax® 6.6L Turbo-Diesel V8 engine delivers 470 horsepower and a remarkable 975 lb-ft of torque, paired with an Allison® 10-speed automatic transmission for smooth, responsive performance.

The Sierra 2500 HD is built to work. With a Best-in-Class 22,500 lbs towing capacity when properly equipped, it’s ready for the toughest challenges, whether hauling trailers or carrying heavy equipment across Arizona's rugged terrain. Enhanced towing technologies, such as up to 14 available camera views—including the Transparent Trailer View—and the ProGrade® Trailering System with in-vehicle app, simplify the towing experience. For off-road performance, the AT4 and AT4X trims are equipped with Rancho® shocks, advanced off-road suspension, and an electronic locking rear differential, giving you the control you need on uneven terrain.

Inside the Sierra 2500 HD, luxury meets utility. The Denali trims feature premium open-pore wood accents and perforated leather seating for a sophisticated interior. The Best-in-Class 16-way power-adjustable front seats with massage functionality ensure a relaxing drive, even on long trips. The truck's technology is equally impressive, with a 13.4-inch diagonal center touchscreen—the largest in its class—offering wireless Apple CarPlay® and Android Auto™ integration. Additionally, a 12.3-inch digital driver display provides customizable real-time information, ensuring you stay informed at all times. The spacious center console and ample storage solutions add a touch of practicality to the luxurious interior.

Safety is paramount in the 2025 Sierra 2500 HD, which comes equipped with a range of advanced driver-assistance systems. The standard Pro Safety Package includes features like Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning, and Front Pedestrian Braking. For those who frequently tow, available Adaptive Cruise Control with Trailering adjusts your speed for a safer, more relaxed driving experience. The HD Surround Vision camera system provides a 360-degree view of your surroundings, making parking, maneuvering tight spaces, and navigating narrow roads around Gilbert easier than ever. With these HD camera capabilities, you’ll have enhanced visibility and confidence in any situation.