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2026 GMC® Sierra 2500HD
AT4
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Meet the 2026 GMC Sierra 2500HD AT4—a powerhouse built for serious work and commanding presence. This Crew Cab Standard Bed delivers the rugged durability you expect from a professional-grade truck, finished in striking Black with a sophisticated Jet Black and Kalahari Accents leather interior. The legendary Duramax 6.6L V8 Turbodiesel engine paired with a responsive 10-speed automatic transmission provides the performance, efficiency, and towing capability that sets this truck apart.
The AT4 Preferred Package elevates this Sierra with premium features designed for both capability and comfort. Power leather seats with heating and ventilation keep you comfortable across long drives, while the power sunroof brings light and openness to the cabin. Advanced technology includes the Premium GMC Infotainment System with wireless Apple CarPlay and Android Auto, a surround-view camera system with trailer-specific views, and a crisp 15-inch head-up display. The Gooseneck/5th Wheel Prep Package stands ready for heavy-duty trailer operations.
Key features include all-weather floor liners, LED cargo lighting, a spray-on bedliner with GMC logo, the sport step with black finish, and the X31 Off-Road Package for added capability. Safety is paramount with automatic emergency braking, lane departure warning, rear cross traffic alert, and ultrasonic park assist. Heated mirrors, rain-sensing wipers, and a remote vehicle starter ensure convenience in any condition, while OnStar connectivity keeps you connected on the job.
Visit Red Rock GMC today to test drive this impressive 2500HD and experience Professional Grade capability firsthand. Our knowledgeable team is ready to answer your questions and help you customize the perfect truck for your needs.
Select Shield includes a 3-month or 3,000-mile limited warranty on select vehicles, valid in all 50 states. New vehicles receive coverage beginning after the manufacturer's basic warranty ends. Excludes as-is, tax, tow, salvage, or lemon law vehicles. Vehicle information, options, and features may vary. Verify all details with the dealer. See dealer for complete details.
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*New, Used, Certified Pre-Owned vehicle pricing excludes Taxes, Title, Licensing, and or other State or Federal fees. Our vehicle information is updated through an automated system every 24 to 48 hours.
RECALL NOTICE: Some vehicles offered for sale may be subject to unrepaired manufacturer safety recalls. To determine the recall status of a vehicle, visit https://www.nhtsa.gov/recalls or click here.
Price
Prices shown excludes state taxes, registration fees, finance charges, emissions testing fees. Some customers may not qualify for all rebates and or incentives offered by the manufacturer or State and Federal government programs. Rebates are subject to residency restrictions. Vehicle information is updated through an automated system every 24 to 48 hours.
Vehicle Information
Vehicle photos provided by the manufacturer may not represent the actual vehicle offered for sale, accessories equipment and color may vary. Vehicle information is updated through an automated system every 24 to 48 hours.
Vehicle Availability
Vehicle information is updated through an automated system every 24 to 48 hours. Additionally, vehicles shown may be in the inventory of a partner dealership and or a dealership with shared ownership. If this is the case, the inventory can be made available to you at dealer's location within a reasonable time.
EPA Disclaimer
Fuel economy ratings and driving range figures are based on EPA estimates for new vehicles, and actual mileage and range may vary depending on factors such as driving conditions, vehicle maintenance, fuel quality, driving habits, and modifications. For used vehicles, the EPA estimates were generated when the vehicle was new, and actual fuel economy may differ more significantly due to factors like age, maintenance history, and vehicle condition. Therefore, EPA estimates should be used as a general guide for comparison purposes only and not as a guarantee of actual fuel economy or driving range, especially when considering used vehicles. For more information please visit http://www.fueleconomy.gov/feg/label/learn-more-PHEV-label.shtml.
2026 GMC® Sierra 2500HD
AT4