Highlights
- Powerful Duramax 6.6L V8 Turbo Diesel engine
- Advanced towing and off-road capabilities
- Luxurious interior with premium features
- Comprehensive safety and technology package
Options
Safety:
- Adaptive Cruise Control
- HD Surround Vision
- Driver Safety Alert Seat
- Front and Rear Park Assist
- Trailer Side Blind Zone Alert
- Rear Cross Traffic Alert
- Automatic Emergency Braking
- Forward Collision Alert
- Front Pedestrian Braking
- Lane Departure Warning
- Following Distance Indicator
- IntelliBeam auto high beams
Comfort:
- 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
- 120V AC power outlets
Technology:
- 13.4-inch diagonal touchscreen with Google built-in
- 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
- Hitch Guidance with Hitch View
- In-Vehicle Trailering App
Features
- Power Retractable Assist Steps
- Gooseneck/5th Wheel Prep Package
- GMC MultiPro Tailgate
- Power sunroof
- Power sliding rear window
- LED roof marker lamps
- Animated LED projector headlamps
- LED fog lamps
- LED cargo bed lighting
- Rain-sensing wipers
- Power-folding/extending trailering mirrors
Why Choose This Vehicle?
This 2026 GMC Sierra 3500HD AT4 offers unmatched towing capability, rugged off-road style, and high-end luxury, making it the perfect choice for those who demand the best in heavy-duty performance and comfort.