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Preproduction model shown throughout with optional features. Actual production model may vary.
2025 SIERRA HEAVY DUTY
DENALI
KEY FEATURES
AVAILABLE
13.4” DIAGONAL CENTER TOUCH-SCREEN
OFFERS
UNIVERSAL VEHICLE MODULE
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
STARTING AT XXXXX
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®
§ §
- 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 Plan
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®
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NEXT-GENERATION GMC INFOTAINMENT SYSTEM WITH AVAILABLE GOOGLE BUILT-IN
Available with the next-generation GMC Infotainment System
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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.
VIEW DETAILS
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-
Available advanced tech allows you to trailer with enhanced confidence and improved camera views.
VIEW DETAILS
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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.
VIEW DETAILS
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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.
VIEW DETAILS
COLORS
Volcanic Red Tintcoat (Available at extra charge)
White Frost Tricoat (Available at extra charge)
Cardinal Red (Available at extra charge)
Summit White
Onyx Black (Available at extra charge)
Sterling Metallic (Available at extra charge)
Downpour Metallic (Available at extra charge)
Titanium Rush Metallic (Available at extra charge)
Atmosphere/Brownstone - Forge Perforated Leather seating surfaces
SPEC HIGHLIGHTS
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
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
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
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 /REAR TREAD WIDTH
174.14 cm/190.47 cm
