Due to global Semi-Conductor supply shortages and software issues, GM vehicles may not have some standard features and options. Please check with your local GMC dealer to confirm the vehicle’s specifications prior to purchase. Vehicles not equipped with Automatic Stop/Start will be less fuel efficient.

Sierra comes with: 

  • Standard: 5-YEAR / 100,000 KM WARRANTY§
  • Optional: 2-YEAR EXTENDED WARRANTY AVAILABLE§

DENALI

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Key Features:

  • Standard 6.6L V8 Gas Engine with Allison® 10-Speed Automatic Transmission
  • 13.4" Diagonal Center Touch-Screen, 12.3" Diagonal Digital Driver Information Center and Available Multicolor 15" Diagonal Head-Up Display
  • Denali-Exclusive Authentic Open-Pore Wood, Patterned Aluminum Trim, and Forge Perforated Leather Seating Surfaces
  • Standard Wireless Apple CarPlay®§ and Wireless Android AutoTM§ Compatibility 
  • Standard Adaptive Cruise Control
  • Spray-on Bedliner will have GMC Logo on back wall
  • Power Sunroof
  • Universal Home Remote
  • 3 Years OnStar Connect Plan§
  • OnStar Wi-Fi trial for 3GB/90 days (whichever comes first)

INTERIOR

Sierra HD Denali feature ultra-premium interiors with first-class amenities and the finest materials.

DENALI ULTIMATE SHOWN

PREMIUM MATERIAL
Sierra HD Denali’s interior distinguishes itself with a level of craftsmanship that is the epitome of Professional Grade. This includes aluminum trim and chrome accents and authentic open-pore walnut wood detailing.

EMBROIDERED DENALI LOGO
Sierra HD Denali features attractive embroidery on the front seats.

EXTERIOR

Sierra Heavy Duty looks every inch the premium pulling machine.

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NEW FRONT BUMPER, FASCIA AND REDESIGNED DENALI CHROME GRILLE 
A bold, updated front end further refines Sierra HD Denali’s striking good looks.

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20" ULTRA-BRIGHT MACHINED WHEELS WITH BRIGHT CHROME INSERTS
Sierra HD Denali stands out with available unique wheels on SRW models.

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NEW LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING WITH ANIMATED SEQUENCES 
New LED projector headlamps help enhance Sierra Heavy Duty’s bold exterior design. 

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POWER-RETRACTABLE ASSIST STEPS WITH LED PERIMETER LIGHTING
This available feature includes textured step pads to help provide secure footing and a Deploy Running Board mode for car washes. Illuminated power assist steps available on Denali.

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SIX-FUNCTION MULTIPROTM TAILGATE
Helping to make light work of almost any job, GMC’s powerfully innovative MultiPro™ Tailgate combines six convenient functions.

TECHNOLOGY

Enjoy 3 years of the OnStar Connect and Protect Plan§. Experience seamless connectivity that makes every drive better over time with Google Built-In, 4G LTE Wi-Fi, Vehicle Mobile App and more.

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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13.4" DIAGONAL CENTER TOUCH-SCREEN
An available 13.4" diagonal tablet-style touch-screen is the customizable, high-tech centerpiece of the cabin. 

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12.3" DIAGONAL DIGITAL DRIVER INFORMATION CENTER
Sierra Heavy Duty features an available 12.3" diagonal digital Driver Information Center. Control and customize important vehicle, driving and infotainment content with high-resolution clarity.

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WIRELESS APPLE CARPLAY® AND WIRELESS ANDROID AUTOTM COMPATIBILITY
Connect your compatible smartphone to wireless Apple CarPlay®§ or wireless Android Auto§ compatibility for a more integrated in-vehicle experience. 

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NEXT-GENERATION GMC INFOTAINMENT SYSTEM WITH AVAILABLE GOOGLE BUILT-IN POWERED BY ONSTAR 
Available with the next-generation GMC Infotainment System§ and Google built-in compatibility§, Sierra Heavy Duty offers a helpful, personalized and seamless way to enhance your in-vehicle experience. 

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UP TO 14 AVAILABLE CAMERA VIEWS INCLUDING ENHANCED TRANSPARENT TRAILER VIEW 
Keep tabs on your truck and trailer with up to 14 available camera views, § including HD Surround Vision and Bed View Camera, to help optimize the view around the truck and your compatible trailer, as well as the available industry-first transparent trailer view.

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CAPABILITY

Sierra Heavy Duty is strong and smart, offering an advanced suite of available intelligent trailering technologies to help you stay in command. 

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OFFERS THE MOST TRAILERING-§ASSISTANCE TECHNOLOGIES 
Available advanced tech allows you to trailer with enhanced confidence and improved camera views.§ Additionally, ProgradeTM Trailering Tech is an available advanced suite of intelligent technologies which help streamline the hitching and towing process with integrated tools that helps enhance your sense of safety, confidence, and visibility. 

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AVAILABLE SIX-FUNCTION MULTIPRO TAILGATE 
The powerfully innovative available MultiProTM Tailgate combines six convenient functions that help improve loading, unloading and accessing the cargo bed to make light work of almost any job.

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EXPERIENCE V8 TOWING PROWESS
Sierra Heavy Duty’s standard 6.6L V8 gas engine is now paired with the Allison 10-speed automatic transmission. This allows the engine to be held closer to its peak power band, optimizing power, torque and efficiency. 

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SAFETY

SIERRA HD PRO SAFETY§

Every Sierra Heavy Duty includes active safety and driver-assistance technologies that help while driving and trailering. Sierra HD Pro Safety includes:

  • Forward Collision Alert
  • Following Distance Indicator
  • Front Pedestrian Braking
  • IntelliBeam
  • Lane Departure Warning
  • Buckle to Drive
  • Automatic Emergency Braking
  • Advanced safety and 24/7 Human assistance powered by OnStar§

COLORS

EXTERIOR
Volcanic Red Tintcoat

Volcanic Red Tintcoat (Available at extra charge) 

White Frost Tricoat

White Frost Tricoat (Available at extra charge)

Cardinal Red

Cardinal Red (Available at extra charge)

Summit White

Summit White

Onyx Black

Onyx Black (Available at extra charge) 

Sterling Metallic

Sterling Metallic (Available at extra charge) 

Downpour Metallic

Downpour Metallic (Available at extra charge)

Titanium Rush Metallic

Titanium Rush Metallic (Available at extra charge) 

INTERIOR
Atmosphere/Brownstone

Atmosphere/Brownstone - Forge Perforated Leather seating surfaces

SPEC HIGHLIGHTS

2500 CREW CAB

GMC Sierra 2500 Heavy Duty truck comes in 4WD Crew Cab models with a 2.057 m standard bed or available 2.438 m long bed.

MAX 5TH WHEEL /GOOSENECK RATING

8,392 KG 

MAX CONVENTIONAL TRAILERING§

8,392 KG 

MAX GCWR§

11,794 KG 

GROUND CLEARANCE

256-257 mm

WHEELBASE

4.037–4.369 mm

CARGO VOLUME§

1.968–2.364 Liters

FRONT /REAR TREAD WIDTH

SRW: 1.732 mm/1.736 mm

2500 REGULAR CAB

GMC Sierra 2500 Heavy Duty truck comes in 4WD Regular Cab models with an 2.438 m long bed.

MAX GCWR§

11,793 KG 

GROUND CLEARANCE

259 mm 

WHEELBASE

3.595 mm

CARGO VOLUME

2.364 Liters 

MAX 5TH WHEEL /GOOSENECK RATING

8,392 KG 

MAX CONVENTIONAL TRAILERING§

6,577 KG 

FRONT /REAR TREAD WIDTH

1.732 m/1.736 mm 

SPEC HIGHLIGHTS

3500 CREW CAB

GMC Sierra 3500 Heavy Duty truck comes in 2WD and 4WD Crew Cab with either a 2.057 m standard bed or available 2.438 m long bed. Long bed is available with a Single Rear Wheel or Dual Rear Wheel configuration

MAX CONVENTIONAL TRAILERING§

8,392 KG 

MAX 5TH WHEEL /GOOSENECK RATING

8,392 KG 

MAX GCWR§

11,794 KG 

GROUND CLEARANCE

283-284 mm SRW 
264 mm DRW 

WHEELBASE

4,369 mm 

CARGO VOLUME

2,365 Liters 

FRONT/REAR TREAD WIDTH

SINGLE REAR WHEEL: 1.729/1.734m 
DUAL REAR WHEEL: 1.74/1.91m

2500 3500 REGULAR CAB

GMC Sierra 3500 Heavy Duty truck comes in 4WD
Regular Cab with an 8' 2.438 m long bed Single Rear Wheel or Dual Rear Wheel configuration.

MAX GCWR§

19,912.7111,794 KG 

GROUND CLEARANCE

28.5 cm285 mm SRW/26.6 cm266 mm DRW 

WHEELBASE

359.54 cm3,569 mm

CARGO VOLUME

2.365 Cu. m.2,367 Liters§

MAX 5TH WHEEL /GOOSENECK RATING

14,515 KG/16,330 KG8,482 kg 

MAX CONVENTIONAL TRAILERING§

9,0728,346 KG 

FRONT TREAD/REAR TREAD WIDTH

174.14 cm/190.47 cm 

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