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SIERRA HEAVY DUTY PRO, SLE & SLT AT4 & AT4X DENALI & DENALI ULTIMATE COMPARE TRIMS TRADE-IN APPRAISAL INVENTORY BUILD & BUY

2026 GMC SIERRA HEAVY DUTY

DENALI & DENALI ULTIMATE

LUXURY TRUCKS

Sierra 2500 HD Denali as shown $85,485*

Wide Front Three-Quarters View of the 2026 GMC Sierra HD Denali Luxury Truck in the Desert

DENALI STARTING AT

$75,000*

AVAILABLE TOW UP TO

30,800 LBS.*

KEY FEATURES

AVAILABLE

DURAMAX® 6.6L TURBO-DIESEL V8 ENGINE

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

ADVANCED TRAILERING-ASSISTANCE TECHNOLOGIES

STANDARD BEST-IN-CLASS*

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

MULTICOLOR 15" DIAGONAL HEAD-UP DISPLAY*

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EXPLORE GMC SIERRA HD DENALI & DENALI ULTIMATE TRIMS

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As Shown $75,495*

DENALI

STARTING AT

$75,000*

AVAILABLE TOW UP TO

30,800 LBS.*

KEY STANDARD FEATURES

  • 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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As Shown $94,295*

DENALI ULTIMATE

STARTING AT

$93,800*

AVAILABLE TOW UP TO

30,700 LBS.*

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

SIERRA HD DENALI & DENALI ULTIMATE COLORS

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

    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, front bumper 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 aluminum wheels with bright chrome inserts.*

    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.*

    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.

    View of the Exterior Spray-on Bedliner in the 2026 GMC Sierra HD Heavy Duty Truck Bed

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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
    Wide Rear Three-Quarters Birdseye View of a 2026 GMC Sierra HD 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 GMC Sierra HD Denali Luxury Truck
    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 best-in-class* 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 color touchscreen with Google built-in* compatibility and voice-activated technology for your phone provides a seamless way to customize your entertainment.

    Close-up of the Digital Cockpit in a 2026 GMC Sierra HD Denali Luxury Truck

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    12.3" DIAGONAL COLOR DRIVER INFORMATION CENTER

    The Sierra HD luxury truck features a driver-focused display that puts information front, center 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.

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    SAFETY

    Go forth with added confidence.

    The 2026 GMC Sierra HD Heavy Duty Truck Driving Through a Mountain Road and Kicking up Dust

    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

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    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

    19,900 lbs.*

    MAX AVAILABLE CONVENTIONAL TRAILERING

    20,000 lbs.*

    MAX AVAILABLE GCWR

    30,000 lbs.*

    GROUND CLEARANCE

    10.4"

    WHEELBASE

    159.0"–172.0"

    CARGO VOLUME

    69.5–83.5 cu. ft.*

    OVERALL VEHICLE LENGTH

    250.8"–266.8"

    MAX AVAILABLE PAYLOAD

    3,812 lbs.*

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    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

    19,300 lbs.*

    MAX AVAILABLE CONVENTIONAL TRAILERING

    20,000 lbs.*

    MAX AVAILABLE GCWR

    30,000 lbs.*

    GROUND CLEARANCE

    10.4"

    WHEELBASE

    159.0”–172.0”

    CARGO VOLUME

    69.5–83.5 cu. ft.*

    OVERALL VEHICLE LENGTH

    250.8"–266.8"

    MAX AVAILABLE PAYLOAD

    3,153 lbs.*

    3500 HD SPEC HIGHLIGHTS

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    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

    30,800 lbs.*

    MAX AVAILABLE CONVENTIONAL TRAILERING

    20,000 lbs.*

    MAX AVAILABLE GCWR

    40,000 lbs.*

    GROUND CLEARANCE

    SRW:

    DRW:

    11.1"–11.2"

    10.4"

    WHEELBASE

     

    159.0"–172.0"

    CARGO VOLUME

    69.5–83.5 cu. ft.*

    OVERALL VEHICLE LENGTH

    250.8"–266.8"

    MAX AVAILABLE PAYLOAD

    6,378 lbs.*

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    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

    30,700 lbs.*

    MAX AVAILABLE CONVENTIONAL TRAILERING

    20,000 lbs.*

    MAX AVAILABLE GCWR

    40,000 lbs.*

    GROUND CLEARANCE

    SRW:

    DRW:

    11.1"–11.2"

    10.4"

    WHEELBASE

    159.0"–172.0"

    CARGO VOLUME

    69.5–83.5 cu. ft.*

    OVERALL VEHICLE LENGTH

    250.8"–266.8"

    MAX AVAILABLE PAYLOAD

    5,290 lbs.*

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