Why should you buy a 2025 GMC Sierra HD in Manassas, VA, Close to Sterling, Chantilly, & Fairfax?
The 2025 GMC Sierra HD for sale at Joyce Koons Buick GMC in Manassas, VA - close to Sterling, Chantilly, and Fairfax - can handle all the curveballs life throws at you.
The 2025 GMC Sierra HD: What We Like
First impressions matter, and the Sierra HD delivers. With its majestic profile, robust silhouette, and muscular front end, this pickup commands attention on the road. The chrome front bumper and 17-inch silver-painted wheels create an exterior that's as striking as it is functional. The CornerStep rear bumper makes loading and unloading cargo a cinch, while the locking tailgate and cab-mounted cargo area lamps keep your gear secure and illuminated.
Under the hood, the Sierra HD packs a serious punch. The standard 6.6L V8 gas engine delivers 401 hp/464 lb-ft of torque, but if you need even more muscle, the available 6.6L Duramax® turbo diesel engine is a beast. It generates up to 470 hp/975 lb-ft of torque and can tow up to 36,000 pounds1. Both engines come paired with an Allison® 10-speed automatic transmission to keep all that power in check.
Why Buy a 2025 GMC Sierra HD NOW from Joyce Koons Buick GMC?
You should buy a 2025 GMC Sierra HD right now from Joyce Koons Buick GMC because our new Buick and GMC specials offer the best prices. You can browse our entire new Buick and GMC inventory right here on our website. Contact us ASAP when you're ready to take a test drive!
1Max towing varies depending on trim level and proper equipment. Maximum trailering ratings are intended for comparison purposes only. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner's Manual. The trailering capacity of your specific vehicle may vary. The weight of passengers, cargo, and options or accessories may reduce the amount you can trailer.
Features
Interior
LUXURIOUS MATERIALS
Sierra HD Denali Ultimate's Alpine Umber interior features full-grain leather seating, plaited contrast stitching, and embossed and laser-etched topographical map patterns of Mt. Denali's summit.
Exterior
LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING
LED projector headlamps with striking animated sequences help enhance Sierra Heavy Duty's impressive exterior design.
Technology
13.4" DIAGONAL CENTER TOUCHSCREEN
This available tablet-style touchscreen - the largest in its class* - is the customizable, high-tech centerpiece of the cabin.
Safety
SIERRA HD PRO SAFETY
Every GMC Sierra 2500 HD and GMC Sierra 3500 HD trucks include active safety and driver assistance technologies that help while driving and trailering. Sierra HD Pro Safety includes:
- Forward Collision Alert
- Following Distance Indicator
- Front Pedestrian Braking
- IntelliBeam
- Lane Departure Warning
- Buckle to Drive
- Automatic Emergency Braking
Performance
DURAMAX 6.6L TURBO-DIESEL V8 WITH ALLISON 10-SPEED AUTOMATIC TRANSMISSION
STANDARD ON DENALI ULTIMATE.
AVAILABLE ON PRO | SLE | SLT | AT4 | DENALI | AT4X
- 975 lb.-ft. of torque and 470 horsepower
- A broad band of power and torque over the entire operating speed range
- Exhaust brake to improve control when towing
- Potent turbo vane actuator and tough valve springs
