The 2026 GMC Sierra 3500HD AT4 Crew Cab combines heavy-duty diesel strength with rugged off-road capability and upscale AT4 refinement. Finished in Onyx Black with a Jet Black/Kalahari interior, this commanding HD pickup is built for towing, hauling, exploring, and demanding conditions.
Performance & Capability
- 6.6L Duramax V8 Turbo-Diesel delivers massive torque for towing and trailering.
- 10-Speed Automatic Transmission keeps the Duramax in its power band.
- Autotrac 4WD + Two-Speed Transfer Case offers selectable traction for varied road, weather, and terrain.
- 3.42 Rear Axle Ratio and Auto Locking Rear Differential boost pulling power and traction.
- Off-Road Suspension + Skid Plates protect against rough terrain.
- Hill Descent Control and Engine Exhaust Brake aid steep descents and towing.
- Integrated Trailer Brake Controller and Hitch Guidance simplify trailer hookup.
- Gooseneck/5th‑Wheel Prep Package and Trailer Camera Provisions support heavy trailer use.
- Trailer Camera Provisions, Bed View Camera, Trailering App enhance visibility and safety.
Winter & Weather Comfort
- Heated & ventilated front seats
- Heated second‑row outboard seats
- Heated steering wheel
- Engine block heater
- Reinforced electric heating/defroster
- Dual‑zone automatic climate control
- Premium floor liners with removable carpet inserts
Interior Comfort & Technology
- Power driver & front passenger seats
- Power sliding rear window
- Rear seat storage package
- Power sunroof
- 13.4” GMC Premium Infotainment with Google built‑in (navigation, voice, Apple CarPlay, Android Auto)
- 12 reconfigurable digital driver info centre
- 15 multicolour head‑up display
- Wireless phone projection & wireless charging
- Bose premium audio system
- Rear camera mirror, universal home remote, multiple USB ports
- Heated steering wheel with audio controls
Safety & Driver Assistance
- Sierra HD Pro Safety suite: Forward Collision Alert, Automatic Emergency Braking, Front Pedestrian Braking, Lane Departure Warning, Adaptive Cruise Control, Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, Front & Rear Park Assist, IntelliBeam automatic high beams, Buckle‑to‑Drive, Teen Driver mode, Seat Belt Adjustable Guide Loops, Tire Pressure Monitoring System, etc.
Exterior Styling & Utility
- Onyx Black exterior with aggressive 20” black aluminum wheels
- AT4 high‑clearance off‑road steps
- Red front recovery hooks
- LED headlights, front fog lamps, roof marker lamps, cargo bed lighting
- GMC MultiPro Tailgate (power lock/release, hitch area light)
- Spray‑on bedliner
- 120V bed‑mounted power outlet
- Cargo tie‑downs (12 @ 500 lb each)
- Grille with Black chrome accents
Why Choose This Vehicle?
This 2026 GMC Sierra 3500HD AT4 is a heavy‑duty workhorse with advanced off‑road capability, premium comfort, and cutting‑edge safety tech. Perfect for towing, hauling, winter driving, or any demanding task while offering modern connectivity and driver assistance features.
Пикап