5 Reasons Drivers Love the 2025 GMC Sierra HD

The 2025 GMC Sierra is the ultimate heavy-duty truck, bringing raw power, luxurious accommodations, and advanced technology to the hard-working, hard-playing drivers of Barrington, Illinois. Whether you're towing heavy loads, venturing off-road, or facing snowy roads, the Sierra Heavy-Duty offers an unparalleled driving experience. Here’s what makes this truck a standout in its class. more Exceptional Performance Under the hood, the 2025 GMC Sierra HD offers robust powertrains that deliver outstanding performance. The 6.6L gas V8 engine generates 401 hp and 464 lbs.-ft. of torque, paired with a smooth-shifting 10-speed automatic transmission. The available Duramax 6.6L Duramax® Turbo-Diesel V8 engine produces an impressive 975 lbs.-ft. of torque and 470 hp, making it a reliable choice for towing and hauling. Able to tow up to 36,000 lbs., the Sierra HD is designed to handle the toughest jobs with ease. Innovative Technology The 2025 GMC Sierra HD is loaded with cutting-edge technology to enhance both safety and convenience. Its 13.4” premium infotainment system with Google built-in ensures seamless connectivity with your apps, playlists, hands-free communication, and Google Assistant. Drivers can also take advantage of the 15” multicolor Head-Up Display, which provides crucial information like speed and navigation without requiring you to take your eyes off the road. Advanced trailering-assistance technologies, including up to 14 available camera views, make towing easier and safer than ever. Whether you're hitching a trailer or navigating tight spaces, these features provide added confidence for any task. Luxurious Interior Step inside the Sierra HD, and you'll find a cabin designed for comfort and sophistication. The Denali Ultimate trim offers Alpine Umber full-grain leather seats, complete with 16-way power adjustments, heating and ventilation, and a massage feature. The spacious interior, with Best-in-Class head and legroom in the Crew Cab configuration, ensures every journey feels first class. Premium materials like authentic wood trim and laser-etched details elevate the Sierra's interior, making it suitable for both rugged adventures and upscale outings. Whether you're towing for the job or just running errands in Barrington, Illinois, the Sierra's interior will ensure you're always riding in style. Bold Exterior Design The 2025 GMC Sierra HD is as stylish as it is functional. Its bold front end, featuring a signature chrome grille, LED projector headlamps, and striking animated sequences, is designed to turn heads and provide exceptional visibility. The innovative MultiPro™ Tailgate features 6 distinct functions, adding utility and convenience that suit both work and leisure. Available in a variety of eye-catching colors, such as Summit White, Cardinal Red, and Onyx Black, the Sierra HD allows you to choose a look that matches your personal style. Conclusion The 2025 GMC Sierra HD is more than just a truck; it's a statement of capability, luxury, and innovation. Perfect for drivers in Barrington, IL, this heavy-duty vehicle is designed to excel in any scenario. Whether you're towing, commuting, or heading off-road, the GMC Sierra HD delivers unmatched performance and refinement. Visit Marquardt of Barrington to see why the 2025 GMC Sierra HD is the ultimate truck for modern drivers.

Heavy-duty, tow-ready, and built to last: these are the words to describe the 2025 GMC Sierra HD. With high horsepower and heavy towing capacity thanks to its powerful V8 engine, this new heavy-duty truck is bound to attract the attention of those in the trades, in the ag industry, or anyone else with industrial-grade towing needs. more Pro The base trim is equipped with a 6.6L V8 gas engine and a 10-speed automatic transmission. To aid with towing, GMC throws in its standard Trailering Package, which comes with trailering mirrors and trailer brake control. While focused on its durability and towing, it's also set with Apple CarPlay and Android Auto compatibility to keep you and your passengers entertained on long drives. SLE The SLE is a step up from the Pro with its inclusion of a 13.4-inch diagonal touchscreen, a 12.3-inch diagonal Driver Information Center, 17-inch aluminum wheels, and the ability to select your traction level with Tow/Haul mode. SLT If you're looking for more luxury, the SLT is automatically fitted with a heated steering wheel, driver's seat, and front passenger seat with lumbar support. It also boasts the GMC MultiPro Tailgate, dark gray-accented 18" aluminum wheels, and GMC's ProGrade Trailering System with app access. AT4 Upgrading to the AT4 will make your vehicle more off-road-ready with new features such as adaptive cruise control, twin-tube Rancho shocks, skid plates, and Hill Descent Control. The appearance also gets upgraded with 20-inch glossy black wheels, a black and Kalahari-accented interior, and a new exterior grille. Denali The Denali sets itself apart from the latter trim levels with the addition of chrome accents, aluminum trim, wood detailing, perforated leather seating, and an embroidered Denali logo on the interior. It also shows off 20-inch Ultra Bright wheels with chrome inserts. Denali owners also get to enjoy 12-way powered front seats with heating and ventilation for added comfort. AT4X Get more bang for your buck when upgrading from the AT4 to the AT4X. To start, you'll be greeted with 35-inch tires, full-grain leather seating, and interior ash wood accents. You'll also get a 1.5-inch suspension lift, rear electronic-locking differential, Multimatic DSSV dampers, and larger steel transfer and front aluminum skid plates. It also features 16-way powered front seats with massage integration, heating, and ventilation. Denali Ultimate Get the most power with the Denali Ultimate, which features a Duramax 6.6L Turbo-Diesel V8 Engine with 975 LB-Ft of torque and 470 horsepower. Other standard features include a 12-speaker sound system, illuminated power-assist steps, a MultiPro Tailgate audio system, paldao wood interior accents, 16-way powered front seats with massage integration, a signature chrome grille, and 20-inch Ultra Bright wheels with glossy black inserts. Think you can handle what the new 2025 GMC Sierra Heavy Duty has in store? Visit Marquardt of Barrington GMC in Barrington, IL today for a test drive.

GMC offers the most powerful pickup trucks, with the Sierra 2500 and 3500 outselling their competition left and right. Check out our 2025 GMC Sierra HD lineup guide and find out why these pickups are such a popular work truck. more Performance Sierra HD pickups come with a standard 6.6L V8 gas engine that yields 401 horsepower at 5200 rpm and 464 lb.-ft. of torque at 4000 rpm. For increased power, there's an available 6.6L Duramax Turbo-Diesel V8 engine that generates 470 horsepower at 2800 rpm and 975 lb.-ft. of torque at 1600 rpm. The Sierra 2500 and 3500 both have an Allison 10-speed automatic transmission that's electronically controlled with overdrive for smooth shifting. This transmission has Tow/Haul mode for better control when towing heavy loads, and auto-grade braking to slow the vehicle on downhill grades. Towing The Sierra 2500 and 3500 are excellent choices for drivers with heavy-duty towing needs, especially with the 6.6L Duramax Turbo-Diesel engine. This engine offers a maximum towing capacity of 21,870 pounds on the 2500 and 36,000 pounds on the 3500. Both models also come with a complete GMC Trailering Package that includes a trailer hitch, a 7-wire electrical harness, 4-pin and 7-pin connectors, a trailering hitch platform, a 2.5-inch receiver hitch, and Hitch Guidance. Hitch Guidance gives you an in-cabin digital view of your trailer and hitch, helping you attach the two with precision. Exterior GMC Sierra pickups have several innovative exterior features that improve every workday, such as the CornerStep rear bumper, cargo tie-downs, and cab-mounted cargo lamps. The 2500 has standard 17-inch all-season tires, while the 3500 comes with 18-inch all-terrain tires. Seating Sierra HD pickups come with two full bench seats in their cabin, including a 40/20/40 split front bench with an under-seat storage compartment. The rear bench is a 60/40 split with seat bottoms that can be folded up on either side to create more cargo space. There are available front bucket seats for higher Sierra trims, like the AT4 and Denali. Connectivity Inside a 2025 Sierra HD pickup, you'll find a 7-inch GMC Infotainment system with wireless smartphone integration, AM/FM radio, and Bluetooth audio streaming. Using Bluetooth technology, Apple CarPlay and Android Auto sync your phone to the truck for a personalized experience that includes hands-free phone calls and texting your contacts. Safety The Sierra HD Pro Safety package offers increased peace of mind when riding in the 2500 or 3500. This package includes Lane Departure Warning, Forward Collision Alert, Front Pedestrian Braking, Buckle to Drive, Automatic Emergency Braking, and more. Other safety features in the Sierra lineup include StabiliTrak electronic stability control, Teen Driver, and Rear Seat Reminder. Visit Marquardt of Barrington GMC in Barrington, IL, to see the 2025 Sierra lineup!