When it comes to heavy-duty trucks that deliver exceptional performance, the 2026 GMC Sierra 2500HD stands ready to tackle your toughest jobs. Available at John Thornton Buick GMC in Carrollton, GA, this powerhouse truck offers impressive capability features designed for demanding workloads.
​The Sierra 2500HD comes equipped with features that make towing easier and safer. The standard Trailering Package includes a trailer hitch with seven-pin and four-pin connectors, plus Hitch Guidance technology. Available upgrades include:
- Max Trailering Package with enhanced frame and suspension components
- Gooseneck/Fifth Wheel Prep Package for heavy-duty trailers
- In-Vehicle Trailering App with checklists and trailer diagnostics
- Trailer Side Blind Zone Alert for confident lane changes
- Trailer Tire Pressure Monitor System
For drivers venturing beyond pavement, the available X31 Off-Road Package includes Hill Descent Control, protective skid plates, and Twin-tube Rancho shocks. The AT4X trim takes capability further with a driver-selectable e-locking rear differential and aggressive 35-inch mud-terrain tires.
Visit John Thornton Buick GMC in Carrollton, GA to experience the remarkable capability of the 2026 GMC Sierra 2500HD firsthand.
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