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Preproduction model shown throughout with optional features. Actual production model may vary.
2025 SIERRA HEAVY DUTY
PRO & SLE
KEY FEATURES
OFFERS
UNIVERSAL VEHICLE MODULE
3 YEARS ONSTAR CONNECT PLAN§ INCLUDED
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 HD comes with:
- Standard: 3-YEAR / 100,000 KM WARRANTY
§ - Optional: 2-YEAR EXTENDED WARRANTY AVAILABLE
§
EXPLORE SIERRA HD PRO & SLE
PRO
STARTING AT XXXXX
Key Features:
- Standard 6.6L V8 Engine with Allison® 10-Speed Automatic Transmission
- Standard LED Headlamps and Daytime Running Lamps
- Standard Trailering Package and Trailering Mirrors
§ - Heavy-Duty Cargo Bed Volume
- Standard Wireless Apple CarPlay®
§ §
- Available MultiPro™ Tailgate
- Standard Cruise Control
- Standard Trailer Brake Controller
- 3 Years OnStar Connect Plan
§ - OnStar Wi-Fi trial for 3GB/90 days (whichever comes first)
SLE
STARTING AT XXXXX
Key features:
- Standard 6.6L V8 Engine with Allison® 10-Speed Automatic Transmission
- Standard 230-Volt Bed -Mounted Power Outlet
- Standard 13.4" Diagonal Center Touch-Screen and 12.3" Diagonal Driver Information Center
- Standard Wireless Apple CarPlay®
§ § - Standard MultiPro™ Tailgate
- Animated Lighting for The Headlamps, Taillamps, and Turn Signals
- Front and Rear Park Assist is added to Driver Safety Package
- Power Sunroof
- Universal Home Remote
- 3 Years OnStar Connect Plan
§ - OnStar Wi-Fi trial for 3GB/90 days (whichever comes first)
INTERIOR
Get comfortable with available features such as premium perforated leather-appointed front outboard seats and a heated wrapped steering wheel.
SLE interior shown.
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SIERRA HEAVY DUTY OFFERS PREMIUM FRONT SEATS
Available 10-way power-adjustable front heated and ventilated bucket seats with perforated leather appointments.
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HEATED STEERING WHEEL
Get a grip on an available heated steering wheel on chilly days.
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CREW CAB FRONT HEAD AND LEG ROOM
Take charge in the roomy, well-appointed cabin—with a tall, commanding view.
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DUAL-ZONE AUTOMATIC CLIMATE CONTROL
The available system automatically controls the fan speed, air delivery, air conditioning and air recirculation in order to heat or cool the vehicle to the desired temperature.
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PREMIUM REAR-SEAT COMFORT
Backseat passengers are sure to be comfortable with the spacious rear leg room on Crew Cab models.
EXTERIOR
Sierra Heavy Duty looks every inch the premium pulling machine.
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NEW LED PROJECTOR HEADLAMPS
See and be seen with new LED projector headlamps with GMC signature animated lighting sequences.
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20" MACHINED ALUMINUM WHEELS WITH BRIGHT SILVER ACCENTS
Available 20” wheels make a powerful statement wherever your travels take you. (Not available on Pro.)
Denali with available accessories shown.
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HEAVY-DUTY CARGO BED VOLUME
Sierra Heavy Duty’s cargo bed is long and wide and features more cargo bed volume. The bed height makes for comfortable lift-in loading and is optimized for gooseneck/fifth-wheel trailer clearance.
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TRAILERING MIRRORS
To further heighten the view of your surroundings, Sierra Heavy Duty offers mirrors with available features such as power-extension, -retraction and -folding capabilities, auxiliary spot lamps, amber clearance lamps, auto-dimming upper glass and perimeter lighting.
TECHNOLOGY
Enjoy 3 years of the OnStar Connect Plan
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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 POWERED BY ONSTAR
Available with the next-generation GMC Infotainment System
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UP TO 13 AVAILABLE CAMERA VIEWS INCLUDING ENHANCED TRANSPARENT TRAILER VIEW
Keep tabs on your truck and trailer with up to 13 available camera views,
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
Available advanced tech allows you to trailer with enhanced confidence and improved camera views
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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.
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
§
PRO COLORS
Cardinal Red (Available at extra charge)
Summit White
Onyx Black (Available at extra charge)
Thunderstorm Gray (Available at extra charge)
Sterling Metallic (Available at extra charge)
Downpour Metallic
Titanium Rush Metallic (Available at extra charge)
Jet Black with Vinyl
Some features shown may have limited, late or no availability. See dealer for feature availability.
Some features shown may have limited, late or no availability. See dealer for feature availability.
Jet Black with Cloth
SLE COLORS
Cardinal Red (Available at extra charge)
Summit White
Onyx Black (Available at extra charge)
Thunderstorm Gray (Available at extra charge)
Sterling Metallic (Available at extra charge)
Downpour Metallic
Titanium Rush Metallic (Available at extra charge)
White Frost Tricoat (Available at extra charge)
DARK WALNUT/SLATE WITH CLOTH
DARK WALNUT/SLATE - LEATHER - APPOINTED
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
1,247 KG
GROUND CLEARANCE
256-257 cm
WHEELBASE
4.037–4.369 m
CARGO VOLUME
1.968–2.364 CU. M.
FRONT/REAR TREAD WIDTH
SRW: 1.732 m/1.736 m
GMC Sierra 2500 Heavy Duty truck comes in 4WD Double Cab models with a 6' 9" standard bed or available 8' long bed.
MAX GCWR
11,793 KG
GROUND CLEARANCE
0.258–0.259 m
WHEELBASE
3.795-4.127"
CARGO VOLUME
1.968–2.364 CU. M
MAX 5TH
WHEEL /GOOSENECK
RATING
8,255 KG
MAX
CONVENTIONAL
TRAILERING
6,577 KG
FRONT TREAD/REAR TREAD WIDTH
1.732 m/1.736 m
GMC Sierra 2500 Heavy Duty truck comes in 4WD Regular Cab models with an 8' long bed.
MAX GCWR
11,793 KG
GROUND CLEARANCE
0.259 m
WHEELBASE
3.595 m
CARGO VOLUME
2.364 CU. M
MAX 5TH
WHEEL /GOOSENECK
RATING
8,396 KG
MAX
CONVENTIONAL
TRAILERING
6,577 KG
FRONT TREAD/REAR TREAD WIDTH
1.732 m/1.736 m
SPEC HIGHLIGHTS
GMC Sierra 3500 Heavy Duty truck comes in 2WD and 4WD Crew Cab with either a 6' 9" standard bed or available 8' long bed. Long bed is available with a Single Rear Wheel or Dual Rear Wheel configuration
MAX
CONVENTIONAL
TRAILERING
9,072 KG
MAX 5TH
WHEEL /GOOSENECK
RATING
14,243 KG
MAX GCWR
18.144 KG
GROUND CLEARANCE
28.3-28.4 cm SRW
26.4 cm DRW
WHEELBASE
403.71–436.88 cm
CARGO VOLUME
1.97–2.36 CU. M
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 2WD and 4WD Double Cab with an 8' long bed Single Rear Wheel or Dual Rear Wheel configuration.
MAX GCWR
18,144 KG
GROUND CLEARANCE
28.397 SRW/26.391 DRW
WHEELBASE
412.7 cm
CARGO VOLUME
2.365 CU. M
MAX 5TH
WHEEL /GOOSENECK
RATING
14,288 KG
MAX
CONVENTIONAL
TRAILERING
9,071.85 KG
FRONT TREAD/REAR TREAD WIDTH
1.731/1.736"
GMC Sierra 3500 Heavy Duty truck comes in 2WD and 4WD Regular Cab with an 8' long bed Single Rear Wheel or Dual Rear Wheel configuration.
MAX GCWR
19,912.71 KG
GROUND CLEARANCE
28.5cm SRW/26.6 cm DRW
WHEELBASE
359.54 cm
CARGO VOLUME
2.365 CU. M
MAX 5TH
WHEEL /GOOSENECK
RATING
14,515 KG/16,330 KG
MAX
CONVENTIONAL
TRAILERING
9,072 KG
FRONT TREAD/REAR TREAD WIDTH
174.14 cm/190.47 cm
