2026 GMC SIERRA HD
Sierra 2500 HD AT4 as shown $85,9203
Sierra 3500 HD Denali as shown $92,4254
Sierra 2500 HD Denali Ultimate as shown $94,2955

2026 Sierra HEAVY DUTY

SIERRA HEAVY DUTY 2026 GMC

Pro Starting at: $46,7001
AVAILABLE TOW UP TO 36,000 LBS.2

EXPLORE SIERRA HEAVY DUTY TRIMS Find the perfect GMC model and see how it stacks up against the competition. Compare features, pricing, and specifications across trucks and SUVs.

2026 GMC SIERRA HD

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.44

ADVANCED TRAILERING TECH

The 2026 Sierra Heavy Duty truck offers advanced trailering-assistance technologies so you can trailer with confidence.

2026 GMC SIERRA HD

Denali Ultimate with exclusive Alpine Umber interior and full-grain leather seating.

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-class4516-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.46

2026 GMC SIERRA HD

Keep informed and in command.

13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM47

The color touchscreen with Google built-in48 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 Display49 helps keep important information like speed and alerts in clear view.

12.3" DIAGONAL COLOR DRIVER INFORMATION CENTER50

GMC Sierra HD features a driver-focused display that puts information front, center and easily visible in high-resolution clarity.

2026 GMC SIERRA HD

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.51

2026 GMC SIERRA HD

Go forth with added confidence.

SIERRA HD PRO SAFETY52

Every GMC Sierra 2500 HD and GMC Sierra 3500 HD truck includes safety and driver assistance technologies that help while driving and trailering.

1 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.

2 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.

3 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.

4 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.

5 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.

6 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.

7 Class is gasoline and diesel heavy duty pickups in the GM Large Pickup segment. Based on latest competitive data available. Excludes other GM vehicles.

8 Vehicle user interface is a product of Apple® and its terms and privacy statements apply. Requires compatible iPhone®, and data plan rates apply. Apple CarPlay®, Siri®, iPhone® and Apple Music® are trademarks of Apple Inc., registered in the U.S. and other countries.

9 Vehicle user interface is a product of Google, and its terms and privacy statements apply. Requires the Android Auto app on Google Play and a compatible Android™ smartphone. Data plan rates apply. You can check which smartphones are compatible at g.co/androidauto/requirements. Android Auto is a trademark of Google LLC.

10 Not included in the as shown price.

11 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 more important feature limitations and information.

12 Read the Owner's Manual to learn system limitations while trailering.

13 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.

14 Tow/Haul Mode will cycle off if the vehicle is left off for more than 4 hours. Your vehicle will restart in Normal Mode when this happens.

15 Not included in the as shown price.

16 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. Some camera views require available accessory camera and installation. Not compatible with all trailers. See your dealer for details.

17 Requires available accessory trailer camera and installation. Not compatible with all trailers. 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. See your dealer for details.

18 Non-GM warranty. Limited warranty by KICKER®, 3 years/36,000 miles, whichever comes first. For more information, contact your dealer.

19 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.

20 App functionality and features vary with vehicle equipment and trim level. Data connection may be required. Some features require active service plan and working electrical system. User terms and limitations apply.

21 App functionality and features vary with vehicle equipment and trim level. Data connection may be required. Some features require active service plan and working electrical system. Terms and limitations apply.

22 Not included in the as shown price.

23 Non-GM warranty. Limited warranty by KICKER®, 3 years/36,000 miles, whichever comes first. For more information, contact your dealer.

24 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.

25 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. Some camera views require available accessory camera and installation. Not compatible with all trailers. See your dealer for details.

26 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 more important feature limitations and information.

27 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 more important feature limitations and information.

28 Read the Owner's Manual to learn system limitations while trailering.

29 Not included in the as shown price.

30 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 more important feature limitations and information.

31 Not available for Sierra 3500 HD.

32 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.

33 Not included in the as shown price.

34 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.

35 Single rear wheel models only.

36 Not included in the as shown price.

37 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 more important feature limitations and information.

38 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.

39 Single rear wheel models only.

40 Bose is a registered trademark of the Bose Corporation in the U.S. and other countries.

41 Bose and Centerpoint are registered trademarks of the Bose Corp.

42 Non-GM warranty. Limited warranty by KICKER®, 3 years/36,000 miles, whichever comes first. For more information, contact your dealer.

43 Not included in the as shown price.

44 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.

45 Based on latest competitive data available.

46 Based on latest competitive data available.

47 Not available on Pro. Functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.

48 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.

49 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.

50 Not available on Pro.

51 Non-GM warranty. Limited warranty by KICKER®, 3 years/36,000 miles, whichever comes first. For more information, contact your dealer. Dealer-installed accessory.

52 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.

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