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

2025

2026

2026 GMC SIERRA HEAVY DUTY

DENALI & DENALI ULTIMATE

LUXURY TRUCKS

Wide Front Three-Quarters View of the 2026 GMC Sierra HD Denali Luxury Truck in the Desert.
BUILD & PRICE VIEW INVENTORY

DENALI STARTING AT :

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AVAILABLE TOW UP TO

13,971 KG*

(30,800 LB)

KEY FEATURES

AVAILABLE

DURAMAX® 6.6L TURBO-DIESEL V8 ENGINE

WITH 975 LB.-FT. OF TORQUE AND 470 HP

ADVANCED TRAILERING-ASSISTANCE TECHNOLOGIES

16-WAY POWER FRONT SEATS WITH MASSAGE FEATURE

ON DENALI ULTIMATE

WORLD’S FIRST

SIX-FUNCTION MULTIPRO™ TAILGATE

WITH AVAILABLE KICKER® AUDIO SYSTEM

UP TO

14 AVAILABLE CAMERA VIEWS*

INCLUDING TRANSPARENT TRAILER VIEW*

AVAILABLE

MULTICOLOUR 15" DIAGONAL HEAD-UP DISPLAY*
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EXPLORE GMC SIERRA HD DENALI & DENALI ULTIMATE TRIMS
2026 GMC Sierra HD Denali.

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*
BUILD & PRICE VIEW INVENTORY VIEW INVENTORY VIEW INVENTORY
2026 GMC Sierra HD Denali Ultimate.

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

DENALI ULTIMATE

STARTING AT:

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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
BUILD & PRICE VIEW INVENTORY VIEW INVENTORY VIEW INVENTORY

DENALI ULTIMATE COLOURS

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

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BUILD & PRICE 

EXTERIOR

Take on the world in first-class style.
Wide Front Three-Quarters View of a 2026 GMC Sierra HD Denali Luxury Truck Driving on an Open Road.
Front View of the Grille on a 2026 GMC Sierra HD Denali Luxury Truck While Hauling a Trailer.

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BOLD DENALI GRILLE

Stand out everywhere you go with the Sierra HD Denali luxury truck’s signature chrome grille and exterior design.
Close-up View of the Wheel on a 2026 GMC Sierra Denali Ultimate Truck.

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20" DENALI WHEELS

The Sierra HD Denali luxury truck stands out with 20" Ultra-Bright machined wheels with bright chrome inserts* and black painted pockets.
Front View of a 2026 GMC Sierra Denali Ultimate Truck Parked in a Driveway.

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DENALI ULTIMATE GRILLE

Denali Ultimate impresses with its signature Vader chrome grille, stylish front fascia and chrome recovery hooks.*
Close-up View of the Wheel on a 2026 GMC Sierra Denali Ultimate Truck.

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20" DENALI ULTIMATE WHEELS

The Sierra HD Denali Ultimate luxury truck features attractive 20" Ultra-Bright machined aluminum wheels with gloss-black inserts* and black painted pockets.
Close-up View of the LED Headlamps on the 2026 GMC Sierra Denali Luxury Truck.

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LED PROJECTOR HEADLAMPS

LED projector headlamps feature GMC signature animated lighting sequences.
Close-up View of the MultiPro Tailgate with Step Lowered on a 2026 GMC Sierra HD Denali Luxury Truck.

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SIX-FUNCTION MULTIPRO TAILGATE

The world’s first MultiPro Tailgate combines six convenient functions that help improve loading, unloading and accessing the cargo bed.

Plus Sign Icon Plus Sign Icon VIEW DETAILS

View of the Exterior Spray-on Bedliner in the 2026 GMC Sierra HD Denali.

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SPRAY-ON BEDLINER 

Help protect the bed and enhance its style with durable cargo bed protection featuring a GMC logo.
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CAPABILITY

Strong, smart and advanced.
A 2026 GMC Sierra HD Denali Luxury Truck Hauling a Trailer Through the Mountains at Dusk.
Close-up of the 13.4 Inch Diagonal Premium GMC Infotainment System of the 2026 GMC Sierra HD Denali.

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PROGRADE® TRAILERING TECH*

This advanced suite of available intelligent technologies helps streamline the hitching and towing process with integrated tools that help enhance your sense of confidence and visibility.

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Three-Quarter View of a 2026 GMC Sierra HD Denali on the Boat Ramp Hauling a Boat Out of the Lake.

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DURAMAX 6.6L TURBO-DIESEL V8 ENGINE

Sierra Heavy Duty’s available Duramax 6.6L Turbo-Diesel V8 engine features an efficient turbocharger and 10-speed automatic transmission.

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A 2026 GMC Sierra HD Denali Truck Hauling a RV Through the Mountains at Dusk.

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6.6L V8 GAS ENGINE

Sierra HD Denali’s standard 6.6L V8 gas engine is paired with a 10-speed automatic transmission to help optimize power, torque and efficiency. 

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Three-Quarters Birdseye View of a 2026 GMC Sierra HD Denali Hauling a Boat on an Open Road Near a Lake.

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ADAPTIVE CRUISE CONTROL WITH TRAILERING

Adaptive Cruise Control* with trailering* allows the luxury heavy-duty truck’s Adaptive Cruise Control to account for additional drag and increased braking distances when towing a trailer.
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INTERIOR

Uncompromising luxury with premium amenities and our finest materials.

Denali Ultimate with laser-etched topographical map.
Close-up of the Bose Speaker and Authentic Wood Detailing in the 2026 GMC Sierra HD Denali Luxury Truck.

Denali with authentic open-poor walnut wood detailing.
Close-up of the Authentic Walnut Wood Detailing in the 2026 Sierra HD Denali Luxury Truck.
Close-up of the Seat Stitching in a 2026 GMC Sierra HD Denali Luxury Truck.

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PREMIUM DENALI INTERIOR

The Sierra HD Denali luxury truck’s interior distinguishes itself with exceptional materials.

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Passenger Seat View of the 2026 GMC Sierra HD Denali Front Row Interiors.

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LUXURIOUS DENALI ULTIMATE MATERIALS

Sierra HD Denali Ultimate’s exclusive Alpine Umber interior features refined craftsmanship.

icon-modal-invert.svg icon-modal-invert.svg VIEW DETAILS

Close-up of the Seat Controls in a 2026 GMC Sierra HD Denali Luxury Truck.

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POWER FRONT SEATS WITH MASSAGING FEATURE

Experience serious comfort in Sierra HD Denali Ultimate’s 16-way power front seats with massaging feature.
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TECHNOLOGY

Keep informed and in command.
Driver's Seat View of the 2026 GMC Sierra HD Denali Dashboard and Display Infotainment Screen.
Close-up View of the Infotainment System with Android Auto in Use in a 2026 GMC Sierra HD Denali Luxury Truck.

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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 Driver Information Center in a 2026 GMC Sierra HD Denali Luxury Truck.

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12.3" DIAGONAL COLOUR DRIVER INFORMATION CENTRE

The Sierra HD luxury truck features a driver-focused display that puts information front, centre and easily visible in high-resolution clarity.
Close-up of a Bose Speaker in a 2026 GMC Sierra HD Denali Luxury Truck.

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12-SPEAKER BOSE SOUND SYSTEM

The technologically advanced available 12-speaker Bose* Premium Series with Centerpoint* surround sound helps create a concert-like listening experience.
Close-up View of the Heads Up Display Feature in Use in a 2026 GMC Sierra HD Denali Luxury Truck.

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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.

icon-modal-invert.svg icon-modal-invert.svg VIEW DETAILS

Close-up of the 13.4 Inch Diagonal Premium GMC Infotainment System of the 2026 GMC Sierra HD Denali Displaying one of the 13 Available Camera Views.

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UP TO 14 CAMERA VIEWS

Get help seeing around your truck and compatible trailer with up to 14 available camera views,* including the industry-first available transparent trailer view.*

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Wide View of a 2026 GMC Sierra HD Denali Hauling a Trailer near the Lake During a Sunset.

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ONSTAR® BASICS*

Drive confidently with core OnStar features, including remote commands,* Automatic Crash Response* and more to help you if you’re in need.

icon-modal-invert.svg icon-modal-invert.svg VIEW DETAILS

Close-up of the Rear View Mirror and OnStar Basics In-Vehicle Blue Button inside a 2026 GMC Sierra HD Denali.

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ONSTAR ONE PLAN

The available OnStar One Plan*, including the OnStar Guardian® app* for 24/7 help on the go, plus in-vehicle apps,* an in-vehicle Wi-Fi® Hotspot* and more.  

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SAFETY AND DRIVER ASSISTANCE

Go forth with added confidence.
The 2026 GMC Sierra HD Denali Truck Driving Through a Mountain Road and 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.

icon-modal-invert.svg icon-modal-invert.svg 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.

2500 HD SPEC HIGHLIGHTS
  • 2500 HD DENALI
  • 2500 HD DENALI ULTIMATE
2026 GMC Sierra 2500 HD Denali.

The Sierra 2500 HD Denali luxury truck comes in a 4WD Crew Cab model with a 6' 9" standard bed or an available 8' long bed.

MAX AVAILABLE GOOSENECK/FIFTH-WHEEL TRAILERING RATING

9,027 kg* (19,900 lb.)

MAX AVAILABLE CONVENTIONAL TRAILERING

9,072 kg* (20,000 lb.)

MAX AVAILABLE GCWR

 13,608 kg* (30,000 lb.)

GROUND CLEARANCE

256 mm - 257 mm (10.08" - 10.12")

WHEELBASE

4037 mm – 4369 mm (159.0"–172.0")

CARGO VOLUME

1968 - 2364 L* (69.5–83.5 cu. ft.*) 

OVERALL VEHICLE LENGTH

6369 mm – 6776 mm (250.8"–266.8")

MAX AVAILABLE PAYLOAD

1681 kg* (3707 lb.)
COMPARE TRIMS
2026 GMC Sierra 2500 HD Denali Ultimate.

The Sierra 2500 HD Denali Ultimate luxury truck comes in a 4WD Crew Cab model with a 6' 9" standard bed or an available 8' long bed.  

MAX AVAILABLE GOOSENECK/FIFTH-WHEEL TRAILERING RATING

9,072 kg* (20,000 lb.)

MAX AVAILABLE CONVENTIONAL TRAILERING

9,072 kg* (20,000 lb.)

MAX AVAILABLE GCWR

13,608 kg* (30,000 lb.) 

GROUND CLEARANCE

261mm (10.3") 

WHEELBASE

4037 mm - 4369 mm (159.0”–172.0”)

CARGO VOLUME

1968 - 2364 L*  (69.5–83.5 cu. ft.*) 

OVERALL VEHICLE LENGTH

6369 mm - 6776 mm (250.8"–266.8") 

MAX AVAILABLE PAYLOAD

1,430 kg* (3,153 lb.)
COMPARE TRIMS

3500 HD SPEC HIGHLIGHTS
  • 3500 HD DENALI
  • 3500 HD DENALI ULTIMATE
2026 GMC Sierra 3500 HD Denali.

The Sierra 3500 HD Denali luxury truck comes in a 4WD Crew Cab model with a 6’ 9” standard bed or an available 8’ long bed. Long bed is available with a Single Rear Wheel or Dual Rear Wheel configuration.  

MAX AVAILABLE GOOSENECK/FIFTH-WHEEL TRAILERING RATING

13,926 kg* (30,700 lb.)

MAX AVAILABLE CONVENTIONAL TRAILERING

9,072 kg* (20,000 lb.)

MAX AVAILABLE GCWR

18,144 kg* (40,000 lb.)

GROUND CLEARANCE

SRW:

 

DRW:

 

283 mm - 284 mm (11.1"–11.2")

 

264 mm (10.4") 

WHEELBASE

 

4037 mm - 4369 mm (159.0"–172.0") 

CARGO VOLUME

1968 - 2364 L* (69.5–83.5 cu. Ft.)

OVERALL VEHICLE LENGTH

6369 mm - 6776 mm (250.8"–266.8")

MAX AVAILABLE PAYLOAD

2,893 kg* (6,378 lb.) 
COMPARE TRIMS
2026 GMC Sierra 3500 HD Denali Ultimate.

The Sierra 3500 HD Denali Ultimate luxury truck comes in a 4WD Crew Cab model with either a 6' 9" standard bed or an available 8' long bed. Long bed is available with a Single Rear Wheel or Dual Rear Wheel configuration. 

MAX AVAILABLE GOOSENECK/FIFTH-WHEEL TRAILERING RATING

13,926 kg* (30,700 lb.) 

MAX AVAILABLE CONVENTIONAL TRAILERING

9,071 kg* (20,000 lb.)

MAX AVAILABLE GCWR

18,144 kg* (40,000 lb.)

GROUND CLEARANCE

SRW:

 

DRW:

283 - 284 mm (11.1"–11.2")

264 mm (10.4")

WHEELBASE

4037 mm - 4369 mm (159.0"–172.0")

CARGO VOLUME

1968 - 2364 L* (69.5–83.5 cu. ft.*)

OVERALL VEHICLE LENGTH

6369 mm - 6776 mm (250.8"–266.8")

MAX AVAILABLE PAYLOAD

2,400 kg* (5,290 lb.) 
COMPARE TRIMS

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