Price Includes Added Accessories Plus Gooseneck / 5th Wheel Prep Package | LPO - Assist Steps, Off Road, Black | 3 Years Sirius XM | AT4 Preferred Package | Technology Package
The 2026 GMC Sierra 2500HD AT4 is built for those who demand serious capability without sacrificing comfort or technology. Powered by the legendary Duramax 6.6L Turbo-Diesel V8, paired with the X31 Off-Road Package and ProGrade Trailering System, this truck is engineered to handle the toughest jobs and the roughest terrain right off the lot with just 10 km on the clock.

- Duramax 6.6L Turbo-Diesel V8 with B20-diesel compatibility for maximum torque and long-haul efficiency
- X31 Off-Road Package with Hill Descent Control, Rancho twin-tube shocks, and skid plates protecting oil pan, front axle, and transfer case
- ProGrade Trailering System including Hitch Guidance with Hitch View, integrated trailer brake controller, and the In-Vehicle Trailering App with trailer tire pressure monitoring
- GMC MultiPro Tailgate with six load and access configurations for versatile hauling
- 13.4" GMC Premium infotainment touchscreen with wireless charging, rear USB charge ports, and a 12.3" digital driver display
- Dual-zone automatic climate control, 10-way power-adjustable front seats with memory, and heated second-row outboard seats
- Animated LED Signature Tail Lamps, Gloss Black grille with Black Chrome accents, and high-gloss Black mirror caps unique to the AT4 trim
- Comprehensive safety suite including Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, Safety Alert Seat, Front and Rear Park Assist, and Bed View Camera

Ready to put this Sierra to work for you? Visit Birchwood Chevrolet Buick GMC in person or at birchwoodchevrolet.ca to reserve this truck, start your purchase online, or book a test drive. Our team is here to make the process straightforward and efficient reach out with any questions and we'll get you behind the wheel.
See three brands under one roof at Birchwood Chevrolet Buick GMC the only place in Winnipeg where you can compare GMC, Chevrolet, and Buick all in one visit. Save yourself some time, see a great selection, and learn everything you need to know.

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Click, call (204) 837-5811, or visit Birchwood Chevrolet Buick GMC at the Birchwood Auto Park, 3965 Portage Avenue West at the Perimeter.

Dealer Permit #4240.
Dealer permit #4240