Why should you buy a 2026 GMC Sierra HD in Manassas, VA, Near Sterling?
The 2026 GMC Sierra HD for sale at Joyce Koons Buick GMC in Manassas, VA - near Sterling, Chantilly, and Fairfax - can handle all the curveballs life throws at you.
The 2026 GMC Sierra HD: What We Like
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.
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.
Why Buy a 2026 GMC Sierra HD NOW from Joyce Koons Buick GMC?
You should buy a 2026 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
Design
16-WAY POWER FRONT SEATS WITH MASSAGING FEATURE
Experience serious comfort in the Sierra Heavy Duty truck's available best-in-class* 16-way power front seats with massaging feature..
*Based on latest competitive data available.
Performance
SERIOUS TOWING POWER
The GMC Sierra 2500 HD Crew Cab offers available max towing of up to 21,870 lbs.*
*Requires a Crew Cab long bed 2WD model with available Duramax 6.6L Turbo-Diesel V8 engine, Max Trailering package, Gooseneck/Fifth-Wheel Prep Package, 18" or 20" wheels and tires and gooseneck/fifth-wheel hitch. 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.
Technology
13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM*
The color touchscreen with Google built-in* compatibility and voice-activated technology for your phone provides a seamless way to customize your entertainment.
*Not available on Pro. Functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.
*Google built-in services are subject to limitations and availability may vary by vehicle, infotainment system, and location. Select service plan required. Certain Google Actions and functionality may require account linking. User terms and privacy statements apply. Google, Android Auto, Google Play, and Google Maps are trademarks of Google LLC.
Safety
SIERRA HD PRO SAFETY*
STANDARD ON PRO | SLE | SLT | AT4 | AT4X | DENALI | DENALI ULTIMATE
Every GMC Sierra 2500HD and GMC Sierra 3500 HD truck includes safety and driver assistance technologies that help while driving and trailering.
- Forward Collision Alert
- Following Distance Indicator
- Front Pedestrian and Bicyclist Braking
- IntelliBeam
- Lane Departure Warning
- Automatic Emergency Braking
- Buckle to Drive
*Safety or driver assistance features are no substitute for the driver's responsibility to operate the vehicle in a safe manner. The driver should remain attentive to traffic, surroundings and road conditions at all times. Visibility, weather, and road conditions may affect feature performance. Read the vehicle Owner's Manual for more important feature limitations and information.