Meet the new 2026 GMC Sierra 3500HD AT4 Crew Cab, finished in Sterling Metallic with a Jet Black interior accented in Kalahari. Its 6.6L V8 gasoline engine, 10-speed automatic transmission, and four-wheel drive deliver heavy-duty capability, while the AT4’s off-road equipment adds confidence beyond the pavement. The odometer shows just 3 miles.

Inside, perforated leather seating, a spacious Crew Cab layout, and thoughtful comfort features make long days more enjoyable. Power-adjustable front seats include lumbar support and driver memory, while heated front and rear seats, ventilated front seats, and a heated steering wheel help keep everyone comfortable. A power sunroof brings in fresh air and natural light.

Highlights include:
• X31 Off-Road Package with off-road suspension and Hill Descent Control
• Gooseneck/5th Wheel Prep Package for towing versatility
• 2-speed active transfer case and 3.73 rear axle ratio
• AT4 Preferred Package with a power sliding rear window, defogger, and universal home remote
• AT4 Premium Plus Package with power sunroof and off-road high-clearance assist step
• Spray-on pickup bedliner, LED cargo lighting, and 120-volt bed-mounted outlet
• Bed View Camera with provisions for trailer cameras, Hitch Guidance with Hitch View, and HD Surround Vision
• Bose premium 7-speaker sound system and GMC Premium Infotainment System with a 13.4-inch display
• Multicolor 15-inch diagonal head-up display and camera-equipped auto-dimming rearview mirror
• Wireless phone projection, wireless charging, and multiple USB ports

Driver-assistance and safety features include Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, Following Distance Indicator, Rear Cross Traffic Alert, Trailer Side Blind Zone Alert, and front and rear ultrasonic park assist. Additional equipment includes rain-sensing wipers, IntelliBeam automatic high beams, a Safety Alert Seat, and a rear camera.

With its bold AT4 design, premium cabin, advanced trailering technology, and substantial 4WD capability, this Sierra 3500HD is equipped for demanding work and comfortable travel. 🛻