13.4 GMC Premium Infotainment | Duramax® 6.6L Turbo Diesel | Denali Reserve Package | Gooseneck/5th Wheel Prep | Multi-Colour 15 Head-Up Display | Bose® Premium Audio | Power Sunroof | GMC MultiPro Tailgate The 2026 GMC Sierra 3500 Denali Crew Cab 4WD, striking in its premium Glacier White Tricoat finish with a refined Jet Black leather interior, delivers elite heavy-duty capability alongside iconic executive luxury. Motivated by the legendary Duramax® 6.6L Turbo Diesel V8 engine, this truck is fully engineered for heavy towing with a 3.42 rear axle ratio, 5,488 kg (12,100 lb) GVWR, a high idle switch, and a dual alternator system (220-amp primary and 170-amp auxiliary). This ultimate towing configuration comes upfitted with a factory Gooseneck/5th Wheel Prep Package, a trailer brake controller, and a 2-speed active electronic Autotrac transfer case. The commanding exterior stance features animated LED projector headlamps, front LED fog lamps, rain-sensing wipers, a factory spray-on bed liner, chrome assist steps, a tailgate assist handle, and the innovative GMC MultiPro Tailgate. The meticulously crafted Denali cabin is a sanctuary of premium comfort and next-generation connectivity. The driver-focused dashboard is anchored by a 13.4 diagonal colour touchscreen GMC Premium Infotainment system with Google built-in, wireless Apple CarPlay, wireless Android Auto, and a 12.3 reconfigurable digital driver information cluster. The luxury experience is elevated by the Denali Reserve Package, which adds a power sunroof, a Rear Camera Mirror, and a multi-colour 15 diagonal Head-Up Display. Occupants enjoy first-class treatment with a Bose® premium sound system, heated and ventilated 12-way power front bucket seats with driver memory settings, a heated wrapped steering wheel, dual-zone automatic climate control, a power-sliding rear window, and heated second-row outboard passenger cushions. Advanced safety technologies and towing confidence reach the highest tier with the comprehensive Sierra HD Pro Safety suite. The Sierra 3500 Denali includes HD Surround Vision with Hitch Guidance and Hitch View, a dedicated Bed View Camera, and Adaptive Cruise Control for effortless highway trailering. Active driver assistance protocols include Trailer Side Blind Zone Alert, Rear Cross Traffic Alert, Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, and Lane Departure Warning. Complete with the haptic Driver Safety Alert Seat, Front and Rear Park Assist, and multiple 120V AC power outlets, this luxury heavy-duty powerhouse represents an uncompromised blend of classic Denali prestige and elite work ethic. Stock #T4301785 AMVIC LICENSED DEALER