2026 GMC Sierra 2500HD

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INTERIOR

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 standard Crew Cab front head and leg room.*

TECHNOLOGY

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.

SAFETY

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.

  • Forward Collision Alert
  • Following Distance Indicator
  • Front Pedestrian Braking
  • IntelliBeam
  • Lane Departure Warning
  • Automatic Emergency Braking
  • Buckle to Drive

CAPABILITY

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.

EXPLORE SIERRA HEAVY DUTY TRIMS

The GMC Sierra Heavy Duty is available in the hardworking Pro, the well-equipped SLT, the off-road ready AT4 and the luxurious Denali Ultimate trims.

PRO

PRO

KEY STANDARD FEATURES

  • 6.6L V8 gas engine with 10-speed automatic transmission
  • Trailering Package, Trailering Mirrors and Trailer Brake Controller
  • Best-in-class HD cargo bed volume*
  • Wireless Apple CarPlay®* and wireless Android Auto™* compatibility

KEY AVAILABLE FEATURES*

  • Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission
  • Adaptive Cruise Control* with trailering*

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SLE

SLE

INCLUDES PRO KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES

  • 13.4" diagonal center touchscreen and 12.3" diagonal digital Driver Information Center
  • Traction Select System with Tow/Haul mode*
  • 17" machined aluminum wheels 

KEY AVAILABLE FEATURES*

  • Up to 13 camera views,* including transparent trailer view*
  • MultiPro™ Tailgate and MultiPro Tailgate Audio System by Kicker®*
  • X31 off-road package with twin-tube Rancho® shocks and skid plates

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SLT

SLT

INCLUDES SLE KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTE

  • 10-way power driver and front outboard passenger heated seats with lumbar
  • Heated steering wheel
  • ProGrade® Trailering System* with In-Vehicle Trailering App*
  • 18" machined aluminum wheels with dark grey metallic accents 

KEY AVAILABLE FEATURES*

  • 10-way power-adjustable front heated and ventilated bucket seats with perforated leather appointments
  • MultiPro Tailgate and MultiPro Tailgate Audio System by Kicker*

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AT4

AT4

INCLUDES SLT KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES
  • Exclusive Jet Black interior with Kalahari accents, and heated and ventilated perforated front leather seating surfaces
  • Exclusive 20" gloss-black aluminum wheels with available BFGoodrich® off-road tires
  • Off-Road Suspension Package with twin-tube Rancho shocks and skid plates
  • Up to 14 available camera views* with HD Surround Vision*
  • Adaptive Cruise Control* with trailering*
KEY AVAILABLE FEATURES*
  • 15" diagonal Head-Up Display* with off-road inclinometer
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AT4X

AT4X

INCLUDES AT4 KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES
  • Factory-installed 1.5" suspension lift, Multimatic® DSSV dampers, rear electronic-locking differential, larger steel transfer case skid plate and front aluminum skid plate
  • 35" Goodyear® Territory MT tires
  • 16-way heated and ventilated power front seats with massage feature
  • Obsidian Rush interior featuring full-grain leather seating with technical-grain leather accents and authentic Vanta ash wood 
KEY AVAILABLE FEATURES*
  • AT4X AEV Edition featuring stamped steel bumpers, steering gear and transfer case skid plates, and 18" Salta gloss-black wheels
  • Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission
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DENALI 

DENALI 

INCLUDES SLT KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES
  • 20" Ultra-Bright machined aluminum wheels with bright chrome inserts*
  • Denali-exclusive authentic wood, patterned aluminum trim and Forge perforated leather seating surfaces
  • 12-way heated and ventilated power front seats
KEY AVAILABLE FEATURES*
  • Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission
  • Power sunroof
  • Rear Camera Mirror*
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DENALI ULTIMATE

DENALI ULTIMATE

INCLUDES DENALI KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES
  • Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission
  • Signature Vader Chrome grille and exclusive 20" Ultra-Bright machined aluminum wheels with gloss-black inserts*
  • Exclusive Alpine Umber interior featuring full-grain leather seating, authentic Paldao wood and 16-way power front seats with massage feature
  • 12-Speaker Bose* Premium Series with Centerpoint* surround sound
  • Illuminated power assist steps and MultiPro Tailgate Audio System by KICKER*
KEY AVAILABLE FEATURES*
  • Auxiliary trailer camera
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Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

1Dealer Discount applied to everyone

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