OVERVIEW PRO, SLE & SLT AT4 & AT4X DENALI & DENALI ULTIMATE COMPARE TRIMS BUILD & PRICE

2025

2026

2026 GMC SIERRA HEAVY DUTY

2500 & 3500 HEAVY-DUTY TRUCKS

SIERRA 2500 HD AT4 AS CONFIGURED:  {{as_shown_price}}{{as_shown_price_disclosure}}

SIERRA 3500 HD DENALI AS CONFIGURED:  {{as_shown_price}}{{as_shown_price_disclosure}}

SIERRA 2500 HD DENALI ULTIMATE AS CONFIGURED:  {{as_shown_price}}{{as_shown_price_disclosure}}
Three 2026 GMC Sierra HD Pickup Trucks Parked Near Each Other Outdoors.

Vehicles shown throughout with an accessory(ies) from an independent supplier, which are not warranted by GM or its dealers. GM is not responsible for the safety or quality of independent supplier accessories. Any warranty is provided by the accessory manufacturer.
BUILD & PRICE VIEW INVENTORY

PRO STARTING AT:

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AVAILABLE TOW UP TO

16,330 KG (36,000 LB.)*

KEY FEATURES

AVAILABLE

MULTIPRO™ TAILGATE

AVAILABLE

DURAMAX® 6.6L TURBO-DIESEL V8 ENGINE WITH 975 LB.-FT. OF TORQUE AND 470 HP

AVAILABLE

3500 HD MAX TOWING OF UP TO 16,330 KG (36,000 LB.)*

ADVANCED TRAILERING-ASSISTANCE TECHNOLOGIES

UP TO

14 AVAILABLE CAMERA VIEWS*

INCLUDING TRANSPARENT TRAILER VIEW*

AVAILABLE

16-WAY POWER FRONT SEATS WITH MASSAGE FEATURE
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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 and Denali Ultimate trims.
2026 GMC Sierra HD Pro in Summit White colour.

AS CONFIGURED: {{as_shown_price}}{{as_shown_price_disclosure}}

PRO

STARTING AT:

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AVAILABLE TOW UP TO

36,000 LBS.*

KEY STANDARD FEATURES
  • 6.6L V8 gas engine with 10-speed automatic transmission
  • Trailering Package, Trailering Mirrors and Trailer Brake Controller
  • 7" diagonal GMC Infotainment System*
  • 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*
TRIM DETAILS BUILD & PRICE BUILD & PRICE BUILD & PRICE
2026 GMC Sierra HD SLE in Onyx Black colour.

AS CONFIGURED: {{as_shown_price}}{{as_shown_price_disclosure}}

SLE

STARTING AT:

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AVAILABLE TOW UP TO

XX,XXX LBS.*

KEY STANDARD FEATURES
  • 13.4" diagonal Premium GMC Infotainment System* and 12.3" diagonal digital Driver Information Centre
  • 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
TRIM DETAILS BUILD & PRICE BUILD & PRICE BUILD & PRICE
2026 GMC Sierra HD SLE in Summit White colour.

AS CONFIGURED: {{as_shown_price}}{{as_shown_price_disclosure}}

SLT

STARTING AT:

{{starting_price}}{{starting_price_disclosure}}

AVAILABLE TOW UP TO

XX,XXX LBS.*

KEY STANDARD FEATURES
  • 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
TRIM DETAILS BUILD & PRICE BUILD & PRICE BUILD & PRICE
2026 GMC Sierra HD AT4 in Summit White colour.

AS CONFIGURED: {{as_shown_price}}{{as_shown_price_disclosure}}

AT4

STARTING AT:

{{starting_price}}{{starting_price_disclosure}}

AVAILABLE TOW UP TO

21,300 LBS.*

KEY STANDARD FEATURES
  • 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
  • High Definition Surround Vision*
  • Adaptive Cruise Control*

KEY AVAILABLE FEATURES*
  • 15" diagonal Head-Up Display* with off-road inclinometer
  • Up to 14 camera views,* including transparent trailer view*
TRIM DETAILS BUILD & PRICE BUILD & PRICE BUILD & PRICE
2026 GMC Sierra HD AT4X in Volcanic Red colour.

AS CONFIGURED: {{as_shown_price}}{{as_shown_price_disclosure}}

AT4X*

STARTING AT:

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AVAILABLE TOW UP TO

18,500 LBS.*

KEY STANDARD FEATURES
  • 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" 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
  • AEV embroidered front headrests
  • Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission
TRIM DETAILS BUILD & PRICE BUILD & PRICE BUILD & PRICE
2026 GMC Sierra HD Denali in Downpour Metallic colour.

AS CONFIGURED: {{as_shown_price}}{{as_shown_price_disclosure}}

DENALI 

STARTING AT:

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AVAILABLE TOW UP TO

30,800 LBS.*

KEY STANDARD FEATURES
  • 20" Ultra-Bright machined wheels with bright chrome inserts* and black painted pockets
  • 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*
TRIM DETAILS BUILD & PRICE BUILD & PRICE BUILD & PRICE
2026 GMC Sierra HD Denali Ultimate in Titanium Rush Metallic colour.

AS CONFIGURED: {{as_shown_price}}{{as_shown_price_disclosure}}

DENALI ULTIMATE

STARTING AT:

{{starting_price}}{{starting_price_disclosure}}

AVAILABLE TOW UP TO

30,700 LBS.*

KEY STANDARD FEATURES
  • 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 and black painted pockets
  • 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
TRIM DETAILS BUILD & PRICE BUILD & PRICE BUILD & PRICE

CURRENT OFFERS

VIEW ALL OFFERS

SIERRA HD COLORS

Use the tabs to view available trims, exterior and interior colors, and wheels.

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BUILD & BUY

CAPABILITY

Serious power. Serious trailering.
Front-side view of the 2026 GMC Sierra HD Truck Driving Down a Dirt Road.
Front-side view of the 2026 GMC Sierra HD Truck Driving Out from a Forest.

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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.

VIEW DETAILS

The 2026 GMC Sierra HD Truck Towing a Trailer Through a Hillside road.

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SERIOUS TOWING POWER

The GMC Sierra 2500 HD Crew Cab offers available max towing of up to 10,156 kg (22,390 lb.)*
Side View of the 2026 GMC Sierra HD Truck Hauling a Trailer on a Rocky Mountain Road.

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ADVANCED TRAILERING TECH

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

VIEW DETAILS

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INTERIOR

 Premium interiors to make every trip first-class.

Denali Ultimate with exclusive Alpine Umber interior and full-grain leather seating.
Interior View of the Steering Wheel and Dashboard in the 2026 GMC Sierra HD Truck.

Denali with exclusive authentic wood and Forge perforated leather seating surfaces.
Driver Side Interior View of the Steering Wheel and Dashboard in the 2026 GMC Sierra HD Truck.

AT4X with Obsidian Rush interior featuring full-grain leather seating.
The Front Row Interior Seats of the 2026 GMC Sierra HD Truck.

AT4 featuring exclusive Jet Black interior with Kalahari accents.
Close-up view of the Jet Black Interior Seats with Kalahari Accents of the 2026 GMC Sierra HD Truck.

SLT with perforated leather appointments.
Interior View of the Spacious Cabin in the 2026 GMC Sierra HD Truck.
Close-up view of the 2026 GMC Sierra HD Truck Power Front Seat Controls.

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16-WAY POWER FRONT SEATS WITH MASSAGING FEATURE

Experience serious comfort in the Sierra Heavy Duty truck’s available 16-way power front seats with massaging feature.
Close-up view of the Premium Materials and Ultimate Trim Nameplate on the seat of the 2026 GMC Sierra HD Denali.

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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 front interiors of the 2026 GMC Sierra HD Truck.

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SPACIOUS CABIN

The Sierra Heavy Duty truck features spacious front head and leg room.
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TECHNOLOGY

Keep informed and in command.
View of the Dashboard and the Navigation Feature Displayed on the Infotainment Screen of the 2026 GMC Sierra HD.
The Navigation Feature Displayed on the Infotainment Screen of the 2026 Sierra HD.

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13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM*

The colour touchscreen with Google built-in* compatibility and voice-activated technology for your phone provides a seamless way to customize your entertainment.
Close-up View of the Heads Up Display Feature in Use inside a 2026 GMC Sierra HD.

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15" DIAGONAL MULTICOLOUR HEAD-UP DISPLAY

The available 15" diagonal Head-Up Display* helps keep important information like speed and alerts in clear view.

VIEW DETAILS

Driver's View of the 2026 GMC Sierra HD Denali Steering Wheel and Driver Information Center.

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12.3" DIAGONAL COLOUR DRIVER INFORMATION CENTRE*

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

Powerfully bold. Impressively stylish.
Front View of the 2026 GMC Sierra HD Hauling a RV on a Beachside road.

BOLD FRONT END

Stand out everywhere you go with GMC Sierra HD Denali’s iconic chrome grille, front bumper and fascia.
Multipro Tailgate lowered on the 2026 GMC Sierra HD Truck.

SIX-FUNCTION MULTIPRO TAILGATE

The powerfully innovative available MultiPro Tailgate combines six convenient functions to help make light work of almost any job in your work truck.

VIEW DETAILS

Close-up View of the 2026 GMC Sierra HD Exterior LED Headlamps.

LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING

LED projector headlamps with striking animated sequences help enhance the Sierra Heavy Duty truck’s impressive exterior design.
Front View of the 2026 GMC Sierra HD Hauling a RV on a Beachside road.

BOLD FRONT END

Stand out everywhere you go with GMC Sierra HD Denali’s iconic chrome grille, front bumper and fascia.
Close-up View of the 2026 GMC Sierra HD Exterior LED Headlamps.

LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING

LED projector headlamps with striking animated sequences help enhance the Sierra Heavy Duty truck’s impressive exterior design.
Multipro Tailgate lowered on the 2026 GMC Sierra HD Truck.

SIX-FUNCTION MULTIPRO TAILGATE

The powerfully innovative available MultiPro Tailgate combines six convenient functions to help make light work of almost any job in your work truck.

VIEW DETAILS

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SAFETY AND DRIVER ASSISTANCE

Go forth with added confidence.
The 2026 GMC Sierra HD Truck Driving Through a Mountain Road while Kicking up Dust.

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.

VIEW DETAILS

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.

GALLERY

VIEW FULL GALLERY
Front-Side View of a 2026 GMC Sierra HD Parked on a Terrain Field Surrounded by Mountains.

VIEW EXTERIOR
A 2026 GMC Sierra HD Parked Next to a Tent.
Front Interior View of a 2026 GMC Sierra HD Denali Truck.

VIEW INTERIOR
Close-up of the 2026 GMC Sierra HD Premium Seat Materials.

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