The 2025 GMC Sierra HD

The 2025 GMC Sierra heavy-duty trucks, in both 2500 and 3500 configurations, are exceptional performers. These well-equipped trucks have a 6.6L V8 engine as standard, providing 401 horsepower and 464 lb.-ft. of torque. Also available is a DURAMAX 6.6L Turbo-Diesel V8 engine producing 470 horsepower and 975 lb.-ft. of torque. Both engines offer an Allison 10-speed automatic transmission.

With exceptional power and torque, drivers have more control over their vehicle. The DURAMAX features an exhaust brake that improves towing capability and offers a potent turbo vane actuator and durable valve springs. Choose either rear-wheel drive or four-wheel drive for the level of support you desire.

Where the 2025 GMC Sierra 2500 and 3500 really stand out is with their capability. The 2500 Crew Cab can provide an available maximum towing power of 21,870 pounds with the DURAMAX engine. With a gooseneck hitch on the 3500HD model, drivers enjoy a towing capacity of 36,000 pounds. With ProGrade Trailering Tech, this vehicle makes the entire process of hitching and towing easier to do while improving confidence when pulling big weight. Drivers have 14 available camera views with the upgrade, which improves drive quality. Adaptive Cruise Control with Trailering is also available.

Premium interiors make the 2025 GMC Sierra Heavy Duty a comfortable vehicle to drive. With trim-specific features, including 16-way power front seats with massaging features, to luxurious materials, including some with full-grain leather seating with plaited contrasting stitching. The cabin is spacious as well.

Advanced technology is easily found throughout the interior, but there’s also ample legroom. The regular cab provides seating for up to five, with the double cab expanding that to six. The crew cab is the most significant with the longest rear legroom. Trim-specific features including heated and ventilated seats, 10-way power adjustable driver’s seat, and dual zone climate control make long drives easier.

Powerful and bold, the 2025 GMC Sierra 3500 and 2500 are both impressive at first sight. The front end has the iconic chrome grill, front bumper, and fascia. There’s functionality here as well, with LED projector headlamps and signature lighting. The premium lighting with its design elements helps bring the interiors sophistication out.

One of the best features for busy drivers is the six-function MultiPro Tailgate. It transforms in various positions to fit the workload you have for it this week.

An intuitively designed interior cabin creates easy-to-access technology. That includes trim-specific tech such as a 13.4-inch tablet-style touchscreen that’s fully customizable to display what you need to see. The huge 15-inch diagonal multicolor head-up display is impressively innovative as it displays speed, safety alerts, and an off-road inclinometer. Finally upfront is a 12.3-inch diagonal color driver information center that has all of your infotainment content available.

Both the GMC Sierra 2500 HD and GMC Sierra 3500 HD trucks feature the Sierra HD Pro Safety technology. This suite of driver assistance features includes front collision alert, following distance indicator, front pedestrian braking, and Intellibeam. Also onboard is automatic emergency braking and lane departure warning. Advanced features, like a rear camera mirror, high-definition surround vision, and hitch guidance, improve functionality even more so.

The program features the 6.6L V8 gas engine with Allison 10-speed automatic transmission, though you can upgrade to the Duramax. It comes with the trailering package, trailering mirrors, and trailer brake controller. It offers best-in-class HD cargo box volume along with compatibility for both Apple CarPlay and Android Auto.

On the SLE, drivers benefit from the Pro, but you also get the larger 13.4-inch center touchscreen and 12.3-inch driver information center. This vehicle also features the Traction Select System with Tow/Haul mode for more control. Slick 17-inch machined aluminum wheels drive home the style.

Based on the SLE, this heavy-duty truck adds a 10-way power driver's seat and front outboard passenger heated seats with lumbar support, a heated steering wheel, and the ProGrade Trailering System with an in-vehicle trailering app. The Multi-Pro tailgate is also on board along with upgraded 18-inch machined aluminum wheels.

The AT4 builds further on this, adding an exclusive jet black interior with Kalahari accents. The seating also features front leather perforations. Outside, you have bolder 20-inch gloss-black aluminum wheels with available BFGoodrich off-road tires. The Off-Road Suspension Package with twin-turbo Rancho shocks and skid plates gives you added functionality on adventures.

The Denali enhances some of the best of the SLT model by providing more features. Including Denali-exclusive authentic open-pore wood, with a patterned aluminum trim and forged perforated leather interior. The 12-way heated and ventilated seats up front create ultimate comfort.

On the AT4X, which builds from the AT4 base, drivers benefit from a 1.5-inch factory-installed suspension lift, Multimatic DSSV dampers, and a rear electronic locking differential. The larger steel transfer case skid plate and front aluminum skid plate, along with full-grain leather seating, really create an impressive performance that’s luxurious to drive.

When you want even more, the Denali Ultimate provides it with the Duramax 6.6L Turbo Diesel V8 engine as standard. Additionally, it adds some excellent features, including a signature Vader Chrome grille, 20-inch ultra-bright machined aluminum wheels with bold gloss black inserts, and exclusive alpine umber open-pore Paldao wood. Even further comfort-inducing is the 16-way power front seats with massage feature and upgraded Bose speaker system.

Heavy-duty trucks are powerful, hardworking vehicles, but the GMC Sierra 2500 and 3500 HD trucks go even further. Their blend of exceptional interior features and outstanding technology makes them not just the workhorse you need but a vehicle that keeps you comfortable even after a long day on the job.

You can check out the new and used GMC Sierra 2500 HD and 3500 HD models at SVG Chevrolet GMC Washington Court House. You can also get started now by speaking to our finance department or getting pre-approved for a loan online. As a trusted GMC dealership, our team provides exceptional service, experienced sales professionals, and top-quality GMC service for repairs, oil changes, and upgrades you need over time. To find the best GMC trucks for you, visit our dealership, serving all of Circleville, Chillicothe, Jeffersonville, and the surrounding area.

What is the difference between the GMC Sierra 2500 and the 2025 GMC Sierra 3500?

The main difference between the 2500 and 3500 trucks is the towing and payload capacity. You get a massive 36,000 maximum towing capability out of the 2025 3500 HD model.

What Is the Pro Safety Plus Package on the 2025 GMC Sierra 2500?

This package offers driver-assistance features and safety enhancements that keep you driving safely, even with a commercial, heavy-duty truck.

What is the X31 off-road package on the 2025 GMC Sierra 2500?

The X31 off-road package provides drivers with enhanced off-road capability, including an enhanced suspension system and automatic locking rear differential.

Is the GMC Sierra HD for sale near me, or do I need to order it?

Our dealership works hard to keep the most in-demand trucks on the lot. We often have these vehicles available. However, you can check our current in-stock inventory online for new trucks. If you do not see the vehicle you want, reach out to our sales team. We’ll locate it for you.

Are there new car specials available on the 2025 GMC Sierra 3500?

Specials and manufacturer incentives are often available. To find out what current specials we can offer to you, give our team a call. These discounts and savings change often, but there are often some excellent deals available.

I need service on my 2025 GMC Sierra truck. Do you offer it?

Our comprehensive service department can help you with all of your GMC Sierra 2500 and 3500 HD truck repairs and maintenance needs. If you’re looking for GMC parts near me or you need GMC battery service, contact us for an appointment.