Come see why driving a GMC isn't just transportation—it's an upgrade to everything you expect on the road.

- Duramax 6.6L V8 Turbodiesel engine with 470 horsepower and 975 lb-ft of torque
- 10-Speed Automatic transmission with 4WD
- AT4 Premium Plus Package with power sunroof and Technology Package
- Gooseneck/5th Wheel Prep Package for versatile towing capability
- Power-retractable assist steps with LED lighting
- Multicolor 15" Head-Up Display
- Premium Bose 7-speaker

sound system with SiriusXM 360L
- Apple CarPlay and Android Auto compatibility
- HD Surround Vision with Bed View Camera
- Heated and ventilated front seats with 10-way power adjustment
- Heated steering wheel
- Automatic Emergency Braking with Front Pedestrian Braking
- Trailer Side Blind Zone Alert
- Wireless phone projection and charging
- 220-amp alternator and engine block heater

The 2026 Sierra 2500HD AT4 represents serious capability wrapped in refined style. This pickup is built for those who demand performance without compromise. The legendary Duramax diesel engine delivers the power and torque needed for heavy hauling and challenging terrain, while the advanced 10-speed transmission ensures smooth operation in any condition.

The AT4 trim elevates this truck beyond standard performance. You get an off-road suspension calibrated for both highway comfort and backcountry capability. The high-clearance power-retractable assist steps make entry and exit effortless, especially after a long day of work. The spray-on bedliner with GMC logo protects your investment while maintaining the truck's professional appearance.

Technology integration is seamless throughout the cabin. The available gooseneck and fifth-wheel prep package means you're ready to tow serious loads with confidence. The in-vehicle trailering system app keeps you connected to your equipment, while the trailer side blind zone alert adds another layer of safety awareness when maneuvering in tight spaces.

Inside, luxury meets functionality. Heated and ventilated front seats with power adjustment accommodate long drives with comfort. The wireless charging pad keeps your devices ready, while Apple CarPlay and Android Auto ensure your smartphone integrates naturally into your daily routine. The Bose premium audio system transforms your commute into an enjoyable experience, enhanced by three years of SiriusXM service.

Safety features throughout the Sierra 2500HD demonstrate GMC's commitment to protecting you and your cargo. Automatic emergency braking, forward collision alert, and a comprehensive airbag system work together with the truck's capable chassis to keep you secure. The HD surround vision system provides confidence when navigating tight spaces or backing up to a job site.

At the end of the day, the right vehicle doesn't just get you where you're going—it changes how you feel getting there. That's exactly what GMC delivers. Smooth, stylish, and packed with features you'll appreciate every single drive.

Don't just take our word for it—come experience it for yourself. Stop by today, take a seat behind the wheel, and see why so many drivers are making the switch to GMC. Your next upgrade is waiting. Price includes all applicable rebates:$1000 - Buick & GMC Consumer Cash Program. Exp. 08/31/2026