The 2025 GMC Sierra HD is a lineup of trucks designed to handle all your heavy tasks. Whether you pick a Sierra 2500 HD or a Sierra 3500 HD, you can expect a range of impressive features you’ll love.
7 Impressive Features of the 2025 GMC Sierra HD
Best-in-Class Utility
Built for work yet ready for extreme adventures, the 2025 Sierra HD can haul and tow like a champ. The trucks in this lineup boast best-in-class cargo volume that ranges between 69.50 cubic feet in the standard bed to 83.50 cubic feet in the long bed. An available MultiPro tailgate ensures easy bed access and locks in various positions, allowing you to transport multiple types of cargo.
Standard Trailering Provisions
Depending on the model and configuration, this truck can tow up to 36,000 pounds, and regardless of the model you pick, trailering provisions are standard. GMC’s Trailering Package includes a 2.5-inch receiver hitch with four-pin and seven-pin connectors, a hitch platform, and wiring harnesses so you can easily connect the trailer’s lights and brakes. Trailering mirrors and a trailer brake controller are also standard.
Trailering Driver Assistance
In addition to hardware, the Trailering Package also includes driver assistance features, such as hitch guidance. An in-vehicle trailering app is also available, and the available adaptive cruise control system includes trailer coverage.
Powerful V8 Engine
Under the Sierra HD’s hood is a 6.6L V8 gas engine with a power output of 401 horsepower and 464 pound-feet of torque. It pairs with an Allison 10-speed automatic transmission with auto-grade braking and a tow/haul mode that improves control in various driving conditions. If you need more power, a 6.6L V8 turbo-diesel engine is available.
Premium Comfort
Regardless of the cab type and trim level, the Sierra HD provides first-class comfort. The base Pro trim, which is built for work, has easy-to-clean vinyl seating surfaces and a practical front bench with under-seat storage. Four-way adjustable front seats make it easy to customize comfort, and the steering wheel can also be adjusted to the desired height.
Smart Connectivity
With the latest iteration of the GMC Infotainment System, staying connected on the go is easy. Each trim level of the Sierra HD has wireless phone projection with Android Auto and Apple CarPlay, which means you can use most of your phone’s apps on the center touchscreen. Bluetooth connectivity also allows you to answer calls without distractions and stream music from your compatible devices.
Available Tailgate Audio System
GMC also makes it easy to customize your heavy-duty truck for fun. The MultiPro Tailgate Audio System by Kicker, which is available on all trims except for the base and standard on the AT4X and Denali Ultimate trims, makes it easy to turn your truck into an entertainment hub.
To discover everything this heavy-duty truck offers, visit us at Dossett Big 4 Buick GMC in Tupelo, MS.
Connect with us
