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2026 GMC Sierra 3500HD AT4
Pickup Truck
Make
GMC
Model
Sierra 3500HD
Trim
AT4
Year
2026
Mileage
5 kms
About this item
13.4 Diagonal Touchscreen with Google Built-In | AT4 Premium Plus Package | 15 Multicolor Head-Up Display | Power Retractable Assist Steps | Gooseneck/5th Wheel Prep Package | GMC MultiPro Tailgate | Heated & Ventilated Front Seats | Rear Camera Mirror The 2026 GMC Sierra 3500 HD Crew Cab AT4 4WD delivers extreme heavy-duty towing capability, rugged off-road style, and high-end luxury, finished in a Summit White exterior paired with a Jet Black interior featuring Kalahari accents. Powered by the Duramax 6.6L V8 Turbo Diesel engine mated to a 3.42 rear axle ratio and a 12,100 lb (5,488 kg) GVWR, this truck is fully equipped for serious hauling with the Gooseneck/5th Wheel Prep Package, 2-speed active electronic Autotrac transfer case, auto-locking rear differential, Digital Variable Steering, integrated trailer brake controller, and StabiliTrak with trailer sway control and hill start assist. The exterior features bold styling with power-retractable assist steps with LED lighting, a GMC MultiPro Tailgate, EZ-Lift power lock and release tailgate with hitch area light, factory spray-on bedliner, rear wheelhouse liners, power sunroof, power sliding rear window, LED roof marker lamps, animated LED projector headlamps, LED fog lamps, LED cargo bed lighting, rain-sensing wipers, and power-folding/extending trailering mirrors with heated, auto-dimming upper glass and perimeter lighting. Inside, the refined cabin offers 10-way power heated and ventilated front seats, heated second-row outboard seats, driver seat and mirror memory, power-tilt and telescoping heated wrapped steering wheel, dual-zone automatic climate control, premium floor liners, Universal Home Remote, remote start, and 120V AC power outlets in both the instrument panel and cargo bed. Technology and connectivity are centered around a 13.4-inch diagonal colour touchscreen GMC Premium Infotainment system with Google built-in navigation capability, a 12.3-inch reconfigurable Driver Information Centre, 15-inch multicolor Head-Up Display, Rear Camera Mirror, Bed View Camera, Bose premium speaker system, wireless charging, wireless Apple CarPlay, wireless Android Auto, SiriusXM capability, OnStar Basics (up to 8 years), and complete trailering tools including Hitch Guidance with Hitch View and the In-Vehicle Trailering App. Comprehensive safety is provided by Adaptive Cruise Control, HD Surround Vision, Driver Safety Alert Seat, Front and Rear Park Assist, Trailer Side Blind Zone Alert, Rear Cross Traffic Alert, and active safety systems including Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, Following Distance Indicator, and IntelliBeam auto high beams. Stock # T4311386 AMVIC LICENSED DEALER
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