13.4 GMC Infotainment Screen | Denali Reserve Package | Power Sunroof | 15 Head-Up Display | Gooseneck/5th Wheel Prep | Rear Camera Mirror | Bose Premium Sound | GMC MultiPro Tailgate The 2026 GMC Sierra 3500HD Denali Crew Cab 4WD stands as the absolute pinnacle of heavy-duty luxury and elite commercial capability, demanding attention with its crisp Summit White exterior and an exclusive, ultra-premium Atmosphere and Brownstone leather interior layout. Under the hood, the legendary Duramax 6.6L V8 Turbo Diesel engine works in tandem with an advanced 10-speed automatic transmission to generate massive, effortless towing power. Expertly engineered to conquer demanding job sites, heavy transits, and changing Canadian winter conditions, this premium rig features a 3.42 rear axle ratio, an authoritative 5,488 kg (12,100 lb) GVWR, a 2-speed active electronic Autotrac transfer case, an automatic locking rear differential, digital variable steering, and dual alternators (220-amp primary and 170-amp auxiliary). Ready for maximum towing deployment right from the showroom floor, it includes a factory Gooseneck/5th Wheel Prep Package, a high idle switch, an integrated trailer brake controller, and a ProGrade trailering suite featuring Hitch Guidance with Hitch View, an in-vehicle trailering app, a Bed View Camera, and a handy tailgate assist handle. The Denali's iconic exterior styling is richly appointed with chrome assist steps, animated LED projector headlamps, front LED fog lamps, rain-sensing wipers, LED cargo bed lighting, a factory spray-on bed liner, power-folding and extending heated trailering mirrors, and the multi-functional six-position GMC MultiPro Tailgate. The meticulously crafted interior treats passengers to a first-class sanctuary loaded with advanced executive amenities, all illuminated by an added power sunroof. The front row features 12-way power-adjustable, heated, and ventilated bucket seats with dual-preset driver memory, while the rear outboard seats are also heated for premium comfort. The upscale cabin is packed with premium conveniences like a heated wrapped steering wheel, dual-zone automatic climate control, a power-sliding rear window, a Universal Home Remote, wireless phone charging, and 120V AC power outlets located in both the instrument panel and the cargo bed. The state-of-the-art digital dashboard is anchored by a massive 13.4-inch diagonal colour GMC Premium Infotainment touchscreen system with Google Built-In navigation, wireless Apple CarPlay, and wireless Android Auto, playing through a studio-quality Bose premium speaker system. This is paired with a 12.3-inch reconfigurable digital Driver Information Centre. Upgraded with the prestigious Denali Reserve Package, the driver is treated to a multi-colour 15-inch diagonal Head-Up Display and a high-definition Rear Camera Mirror. Absolute protection and driving ease are provided by the Sierra HD Pro Safety suite, highlighting Adaptive Cruise Control, HD Surround Vision, Front and Rear Park Assist, Trailer Side Blind Zone Alert, Rear Cross Traffic Alert, and the tactile Driver Safety Alert Seat. Stock # T4335863 AMVIC LICENSED DEALER