UP TO 36,000 LBS.*
AVAILABLE TOW
Serious power. Serious trailering.
DURAMAX 6.6L TURBO-DIESEL V8 ENGINE
The Sierra Heavy Duty truck’s available Duramax 6.6L Turbo-Diesel V8 engine features an efficient turbocharger and 10-speed automatic transmission.
SERIOUS TOWING POWER
The GMC Sierra 2500 HD Crew Cab offers available max towing of up to 21,870 lbs.*
ADVANCED TRAILERING TECH
The 2026 Sierra Heavy Duty truck offers advanced trailering-assistance technologies so you can trailer with confidence.
Premium interiors to make every trip first-class.
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.
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 its namesake’s mountain summit.
SPACIOUS CABIN
The Sierra Heavy Duty truck features best-in-class Crew Cab front head and leg room.*
Keep informed and in command.
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.
15" DIAGONAL MULTICOLOR HEAD-UP DISPLAY
The available 15" diagonal Head-Up Display* helps keep important information like speed and alerts in clear view.
12.3" DIAGONAL COLOR DRIVER INFORMATION CENTER*
GMC Sierra HD features a driver-focused display that puts information front, center and easily visible in high-resolution clarity.
Powerfully bold. Impressively stylish.
BOLD FRONT END
Stand out everywhere you go with GMC Sierra HD Denali’s iconic chrome grille, front bumper and fascia.
LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING
LED projector headlamps with striking animated sequences help enhance the Sierra Heavy Duty work truck’s impressive exterior design.
MULTIPRO TAILGATE
The powerfully innovative available MultiPro Tailgate combines six convenient functions to help make light work of almost any job. Shown with available MultiPro Audio System by KICKER.*
Go forth with added confidence.
SIERRA HD PRO SAFETY*
Every GMC Sierra 2500 HD and GMC Sierra 3500 HD truck includes safety and driver assistance technologies that help while driving and trailering.
May not represent actual vehicle. (Options, colors, trim and body style may vary)
The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.
More Info
The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
Requires a 3500 HD Regular Cab long bed 2WD DRW model with available Duramax 6.6L Turbo-Diesel V8 engine, Max Trailering Package, gooseneck hitch, Convenience Package and 120-volt power outlet. 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.
The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
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.
Based on latest competitive data available.
Based on latest competitive data available.
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 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.
Not available on Pro.
Non-GM warranty. Limited warranty by KICKER®, 3 years/36,000 miles, whichever comes first. For more information, contact your dealer. Dealer-installed accessory.
Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. Read the vehicle Owner’s Manual for important feature limitations and information.