This 2026 GMC Sierra 2500HD AT4X is a bold, fully customized heavy-duty truck that blends off-road dominance with premium styling. Built on GMC’s most capable AT4X platform, this Sierra stands out with a carefully executed black-and-white theme and high-end aftermarket upgrades throughout.Exterior enhancements include full-length Boost fender lighting, smoked/amber Boost mirror lights, and a striking combination of paint-matched fender trim, box side steps, bumper steps, mirrors, and upper grille. White bumpers are protected with X60 paint protection film, while black grille slats, black tow hooks, black front bumper trim, and white/black GMC badging complete the aggressive look. Additional custom touches such as spiked lug nuts, white 4S AT4X badge accents, and white/black fender emblems set this truck apart.Sitting on 24×12 KG1 Forged Seismic gloss black wheels wrapped in 315/45R24 Nitto Ridge Grappler tires, this AT4X delivers a commanding stance with serious off-road credibility. Performance is further enhanced by a Mels MFG exhaust tip, adding a subtle but powerful finishing touch.With front window tint and attention to detail throughout, this Sierra 2500HD AT4X offers an exceptional blend of rugged capability, premium protection, and show-quality presence—ready to turn heads on the street or dominate off the beaten path.*Feel Safe on the Road with Your GMC Sierra 2500HD *Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behaviour. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver, 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 Belt Indicator, 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. Term begins on vehicle delivery date. 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. Services, connectivity, and capabilities have additional terms and limitations and are subject to change, and will vary by model, vehicle configuration, software version, conditions, and geographical and technical restrictions. Compatible smartphone required for mobile app commands. Not all vehicles may transmit all crash data; OnStar links to emergency services; Voice and Maps apps are subject to change at any time and may be provided by third parties. Non-refundable and no cash value. See onstar.ca/en/info for terms and 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, 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.), Bed View Camera, camera in the CHMSL to show a view of the cargo bed display located in infotainment screen, includes Two Trailer Camera Provisions.*Fully-Loaded with Additional Options*GOOSENECK / 5TH WHEEL PREP PACKAGE — HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH. Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness)., WHEELS, 18 (45.7 CM) MACHINED ALUMINUM WHEEL with High Gloss black accents (STD), TRANSMISSION, 10-SPEED AUTOMATIC, SUMMIT WHITE, SEATS, FRONT BUCKET with centre console (STD), REAR AXLE, 3.42 RATIO, OBSIDIAN RUSH, FULL GRAIN LEATHER SEAT TRIM.*Stop By Today *Stop by Sherwood Buick GMC located at 10 Auto Mall, Sherwood Park, AB T8H 2N1 for a quick visit and a great vehicle!