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Highlights

Heavy‑duty 6.6L turbo‑diesel V8, 470 hp / 975 lb‑ft torque
AT4 Premium Plus package: power sunroof, off‑road high‑clearance step, and advanced technology
4‑wheel drive with transfer case and 10‑speed automatic
Full suite of safety features: forward collision mitigation, lane departure warning, blind‑spot monitoring, and trailer‑hitch guidance
5‑seat crew cab with heated seats, leather upholstery, and premium Bose audio

Features & Options

AT4 Preferred Package: power sunroof, off‑road high‑clearance step, technology package, and more
Heavy‑Duty Package: front spring, camper‑ready wiring, high idle switch, gooseneck/5‑wheel prep
Safety & Convenience: adaptive cruise control, lane‑departure warning, blind‑spot monitoring, rear‑cross‑traffic alert, trailer‑hitch guidance
Comfort: heated leather seats, heated steering wheel, premium Bose sound system, Bose audio, wireless phone projection, Bluetooth, Wi‑Fi hotspot
Exterior: 20‑inch aluminum wheels, LED headlamps, fog lamps, day‑time running lights, privacy glass
Interior: leather upholstery, heated seats, 10‑way power driver seat, 10‑way power passenger seat, seat memory, integrated tailgate step
Technology: navigation system, SiriusXM, OnStar, Bose premium audio, camera system (front, rear, bed view, trailer)
Utility: 10‑speed automatic, 4‑wheel drive, transfer case, heavy‑duty towing capacity, 11,550 lb GVWR

Why Choose This Vehicle?

The 2026 GMC Sierra 3500HD AT4 is a rugged, feature‑packed heavy‑duty pickup that blends off‑road capability with premium comfort. Ideal for both work and adventure, it offers a powerful diesel engine, advanced safety systems, and a host of convenience features that make every drive safe and enjoyable.