The 2026 GMC Sierra 3500HD Denali Ultimate is a top-tier heavy-duty luxury truck that combines extreme towing capability with a highly customized, aggressive appearance. Built on GMC’s most refined HD platform, it delivers outstanding diesel-style strength (depending on configuration) and is engineered for serious hauling, towing, and long-distance comfort.This build stands out with a full suite of blacked-out and paint-matched exterior upgrades, including black exhaust tips, black GMC emblems, black window trim, black door handles, black mirror caps, and black tow hooks. Paired with paint-matched bumper and fender trim, the result is a clean, cohesive, and premium monochromatic look that enhances the Denali Ultimate’s already upscale design.A Cognito 3 leveling kit with FOX 2.0 shocks improves stance, ground clearance, and ride control, giving the truck a more aggressive profile while maintaining stability under load. The suspension setup is designed to handle both heavy-duty work and everyday driving with confidence.Riding on massive 22×12 Fuel Catalyst wheels wrapped in 35×12.5 Toyo Open Country AT3 tires, this Sierra delivers a bold presence and strong all-terrain capability. The tire setup provides excellent traction across gravel, snow, mud, and pavement while maintaining durability for heavy-duty use.Additional styling touches like window tint and a blacked-out top further enhance its commanding road presence, making it as visually striking as it is capable.Overall, this 2026 Sierra 3500HD Denali Ultimate is a high-end luxury heavy-duty truck that blends world-class refinement with aggressive custom styling and serious off-road and towing capability—built for those who want maximum performance, presence, and prestige in a one-ton pickup.*Know the GMC Sierra 3500HD is Protecting Your Most Precious Cargo *StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist, Seat Belt Adjustable Guide Loops, front row only, Safety Alert Seat, Rear Seat Reminder, Rear Seat Belt Indicator (Requires Crew Cab or Double Cab model.), Rear Cross Traffic Alert, OnStar services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.), OnStar Basics (OnStar Fleet Basics for Fleet) Drive more confidently with up to 8 years of core OnStar services including mobile app commands, connectivity for select apps that provide in-vehicle voice assistance and navigation with real-time traffic, and Automatic Crash Response. (Requires (UE1) OnStar. OnStar Basics includes access to remote commands through your vehicle’s mobile app (compatible smartphone required); Automatic Crash Response (not all vehicles may transmit all crash data; OnStar links to emergency services); and wireless connectivity for select apps that provide in-vehicle voice assistance and navigation with real-time traffic (Voice & Maps apps are subject to change at any time and may be provided by third parties). Term begins from date of vehicle delivery. Paid subscription required after expiry. Services are dependent on compatible wireless networks provided by third-party wireless service providers, working vehicle electrical systems, GPS signal and other factors outside GM control. Changes in technology and wireless networks may limit or prevent the operation of certain services. For customers who also separately receive or purchase a Premium Plan or Vehicle Data Plan to use Wi-Fi Hotspot and In-Vehicle Apps, the data provided as part of that plan will also be used by any Voice & Maps apps which already had data connectivity under this Basics plan; if any applicable data caps are reached, Voice & Maps apps will continue to function for the duration of this Basics plan but additional vehicle data plan(s) must be purchased to use Wi-Fi Hotspot and In-Vehicle Apps. Services, connectivity, and capabilities have additional terms and limitations and are subject to change, and will vary by model, vehicle configuration, conditions, and geographical and technical restrictions. Non-refundable and no cash value. See onstar.ca for details.), LED Signature DRL’s, Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.), Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt, Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching, Hill Descent Control (Not available with dual rear wheels.), HD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a centre stack display. Includes front camera washer., Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.), Front and Rear Park Assist, ultrasonic, Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.), Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.), Daytime Running Lamps LED signature lighting, Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety).*Fully-Loaded with Additional Options*ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (STD), Wireless phone projection for Apple CarPlay and Android Auto, Wireless Charging, Wipers, front rain-sensing, Winter Grille Cover, Windows, power rear, express down, Window, power, rear sliding with rear defogger.*Visit Us Today *Test drive this must-see, must-drive, must-own beauty today at Sherwood Buick GMC, 10 Auto Mall, Sherwood Park, AB T8H 2N1.