2026 GMC Sierra Heavy Duty

The 2026 GMC Sierra Heavy Duty delivers capability suited for demanding conditions in Erie and beyond. This HD truck is suited for drivers who need dependable power for winter roads, trailers, and daily workloads. With strength, advanced features, and thoughtful engineering, this truck supports everything from job site tasks to weekend towing. Take an inside look with the truck experts at Rick Weaver GMC.

Power and Performance

The standard 6.6-liter gasoline V8 delivers an estimated 401 horsepower and 464 lb-ft of torque and is paired with an Allison® 10-speed automatic transmission. For even greater capability, an available 6.6-liter Duramax® Turbo-Diesel V8 boosts output to approximately 470 horsepower and an impressive 975 lb-ft of torque, making it well-suited for heavy towing demands.

Features like Traction Select with Tow/Haul mode, a diesel exhaust brake, and available four-wheel drive help enhance control — especially in Erie’s winter conditions. When properly equipped, GMC Sierra Heavy Duty 2500 and 3500 models can tow substantial conventional, fifth-wheel, or gooseneck loads, with available dual rear wheels maximizing overall capability.

Technology Features

This new GMC truck integrates technology designed to support work and travel. An available 13.4-inch GMC touchscreen pairs with a 12.3-inch digital driver display, and higher trims offer a 15-inch Head-Up Display for quick visibility of key information. Wireless Apple CarPlay® and Android Auto™ compatibility, Google built-in services, and available Bose® Premium audio keep drives connected. The ProGrade™ Trailering System and Trailering App® provide checklists and maintenance tracking, while up to 14 available camera views — including transparent trailer and hitch view — aid in maneuvering. Interior comfort is elevated with available heated and ventilated front seats, heated rear seats, wireless charging, and the GMC MultiPro™ Tailgate.

Safety Features

Driver assistance features increase awareness on busy roads. Sierra Heavy Duty Pro Safety includes Forward Collision Alert, Automatic Emergency Braking, Front Pedestrian Braking, Lane Departure Warning, Following Distance Indicator, and IntelliBeam automatic high beams. Additional available systems, including Trailer Side Blind Zone Alert, HD Surround Vision, Rear Camera Mirror, and Adaptive Cruise Control with trailering support for confidence when hauling. StabiliTrak® electronic stability control and an anti-lock braking system reinforce stability across changing conditions.

Towing and Cargo

Capability-focused engineering enhances productivity. Towing strength varies by configuration, with Sierra Heavy Duty 2500 and 3500 models offering conventional, fifth-wheel, and gooseneck options. The bed features a spray-on liner, 12 tie-downs, LED lighting, integrated side steps, and a CornerStep rear bumper for easier access. The MultiPro™ Tailgate helps simplify loading equipment or creating a functional work surface.

Explore the 2026 GMC Sierra HD in Erie, PA

The 2026 GMC Sierra Heavy Duty is available at Rick Weaver GMC for drivers seeking strength and versatility. Our team is ready to guide shoppers through engine choices, towing priorities, and GMC financial options that meet their needs. Visit our GMC dealership in Erie, PA, to test-drive this truck and experience its capability firsthand.