The 2026 GMC Sierra 2500HD Crew Cab Standard Box 4-Wheel Drive AT4, in a bold Onyx Black finish, delivers exceptional power and handling with its robust 4x4 drivetrain and the commanding Duramax 6.6L Turbo-Diesel V8 engine. Designed for those who demand more from their truck, this heavy-duty workhorse is ready to tackle any terrain.

With an athletic stance highlighted by 20-inch high gloss black aluminum wheels and a ruggedly styled exterior complete with black GMC emblems and smoked amber roof marker lamps, this Sierra stands out wherever it goes. Step inside, and the Jet Black interior with Kalahari accents offers premium comfort with front bucket leather seats, complemented by cutting-edge features like a power sliding rear window and a sunroof that enhances your cabin experience.

Stay connected with the advanced GMC Infotainment System featuring a 13.4-inch diagonal touch-screen loaded with Google built-in apps including navigation and voice assistance, combined with wireless Android Auto and Apple CarPlay capabilities. Safety and assistance technologies such as lane assist, adaptive cruise control, a rear camera mirror with a full camera display, and a multicolour 15" diagonal Head-Up Display provide you peace of mind on every journey.

If you're in search of a truck that combines durability, luxury, and state-of-the-art technology, the 2026 GMC Sierra 2500HD AT4 is the ideal choice. Perfect for adventurers and professionals who need a reliable companion on the road and the job site. Contact Surgenor Chevrolet Buick GMC Cadillac today to learn more about this remarkable new model and how it fits your lifestyle.