5 Reasons Drivers Love the 2025 GMC Sierra HD

Available in two lineups, the 2025 GMC Sierra HD is a great choice for heavy-duty work and even heavier play. Its powerful powertrains, versatile configurations, and luxurious comfort are just some of the features drivers love about it.

5 Reasons Drivers Love the 2025 GMC Sierra HD

Versatile Configurations

With various trim levels offered in different cab and bed configurations, customizing your pickup truck has never been easier. A three-seat regular cab with a long bed is available on the Pro and SLE trim levels, offering a cargo capacity of 83.5 cubic feet.

The six-seat double and crew cab styles pair with either a long or a standard bed that boasts a cargo capacity of 69.5 cubic feet. Like the regular cab, the double cab is available on the Pro and SLE models, while the crew cab is compatible with all trims.

Massive Power 

Ready to tackle all heavy-duty tasks, the 2025 GMC Sierra HD comes standard with a 6.6L V8 gas engine and a 10-speed Allison automatic transmission. This powertrain produces 401 horsepower and 464 lb-ft of torque, offering a maximum payload capacity of 3,907 lbs in the 2500 HD Pro model and 4,721 lbs in the 3500 HD Pro trim. An available 6.6L V8 turbo-diesel engine produces up to 975 lb-ft of torque for a towing capacity of up to 36,000 lbs.

Driver-Centric Cabin

Made for heavy-duty work, the new GMC Sierra HD boasts a practical cabin designed with utility and convenience in mind. Whether you opt for the regular cab or the crew cab model, the interior comes standard with cool-looking vinyl seating surfaces and vinyl floors, meaning you can clean the truck easily. Console, dashboard, and steering wheel controls make it easy to operate the truck or access infotainment functions without distractions.

Premium materials, including cloth and leather, are available or standard on the higher trims. The base 40/20/40 front bench boasts convenient under-seat storage, while the rear seats fold flat, making room for more cargo. For enhanced comfort, you can customize the six-seat cabins with front bucket seats.

Smart Tech

Each GMC Sierra HD model boasts a suite of convenience technologies, including hitch guidance and a trailering information label that provides max trailering ratings for conventional, 5th-wheel, and gooseneck towing as well as the tongue weight. GMC’s in-vehicle trailering app is available on all but the base trim.

Driver Assistance

From the Sierra HD Pro Safety Package to the OnStar services and Teen Driver assistance, the new Sierra HD is packed with driver assistance technologies. For added peace of mind behind the wheel, this truck comes standard with a range of anti-collision, blind-spot monitoring, and lane-management systems.

To test all these features yourself, visit us at Wiesner of Huntsville in Huntsville, TX to take the 2025 GMC Sierra HD for a spin.

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