2025 GMC SIERRA HEAVY DUTY

2500 & 3500 HEAVY-DUTY PICKUP TRUCKS
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PRO STARTING AT:

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AVAILABLE TOW UP TO

16,329 KG (36,000 LBS.)†
BUILD & PRICE
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KEY FEATURES

AVAILABLE

2500 CREW CAB MAX TOWING OF UP TO 9,920 KG (21,870 LBS.)†

AVAILABLE

DURAMAX® 6.6L TURBO-DIESEL V8 ENGINE WITH 975 LB.-FT. OF TORQUE AND 470 HP

AVAILABLE

3500 MAX TOWING OF UP TO 16,329 KG (36,000 LBS.)†

OFFERS THE MOST

TRAILERING-ASSISTANCE TECHNOLOGIES IN ITS CLASS†

UP TO

14 AVAILABLE CAMERA VIEWS† INCLUDING TRANSPARENT TRAILER VIEW†

AVAILABLE BEST-IN-CLASS†

16-WAY POWER FRONT SEATS WITH MASSAGE FEATURE

CURRENT OFFERS

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EXPLORE SIERRA HEAVY DUTY TRIMS

From the hardworking Pro and the well-equipped SLT to the off-road ready AT4 and the luxurious Denali Ultimate, there’s a GMC Sierra Heavy Duty trim ready to help you take on whatever lies ahead. Find yours below.
2025 Sierra HD 2500 Pro in Summit White.

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PRO

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AVAILABLE TOW UP TO 16,329 KG (36,000 LBS.)† 

STANDARD FEATURES

  • 6.6L V8 gas engine with Allison® 10-speed automatic transmission
  • Trailering Package, Trailering Mirrors and Trailer Brake Controller
  • Wireless Apple CarPlay®† and wireless Android Auto™† compatibility

 AVAILABLE FEATURES

  • Duramax 6.6L Turbo-Diesel V8 engine with Allison 10-speed automatic transmission
  • Adaptive Cruise Control† with trailering†
TRIM DETAILS BUILD & PRICE
2025 Sierra HD 2500 SLE in Onyx Black.

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SLE

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AVAILABLE TOW UP TO 16,102 KG (35,500 LBS.)† 

KEY FEATURES

  • 13.4" diagonal centre touchscreen and 12.3" diagonal digital Driver Information Centre
  • Traction Select System with Tow/Haul mode†
  • 17" machined aluminum wheels (2500 SRW model)

 AVAILABLE FEATURES

  • Up to 13 camera views,† including transparent trailer view† 
  • MultiPro™ Tailgate and MultiPro Tailgate Audio System by Kicker® 
  • X31 off-road package with twin-tube Rancho® shocks and skid plates
TRIM DETAILS BUILD & PRICE
2025 Sierra HD 2500 SLT in Whitefrost Tricoat.

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SLT

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AVAILABLE TOW UP TO 14,260 KG (31,440 LBS.)† 

KEY FEATURES

  • 10-way power driver and front-passenger heated seats with lumbar
  • Heated steering wheel
  • ProGrade® Trailering System† with In-Vehicle Trailering App†
  • MultiPro Tailgate
  • 18" machined aluminum wheels with dark grey metallic accents (SRW models only)

 AVAILABLE FEATURES

  • SLT Convenience Package, which includes heated and ventilated front bucket seats with perforated leather appointments, Bose† premium audio system, wireless charging,† 2 USB ports† and LED roof marker lamps
TRIM DETAILS BUILD & PRICE
2025 Sierra HD 2500 AT4 in Summit White.

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AT4

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AVAILABLE TOW UP TO 9,661 KG (21,300 LBS.)† 

KEY FEATURES

  • Exclusive Jet Black interior with Kalahari accents, and heated and ventilated perforated front leather seating surfaces
  • Exclusive 20" gloss-black aluminum wheels with available BFGoodrich® off-road tires
  • Off-Road Suspension Package with twin-tube Rancho shocks and skid plates
  • Up to 14 available camera views† with HD Surround Vision†
  • Adaptive Cruise Control†

 AVAILABLE FEATURES

  • 15" diagonal Head-Up Display with off-road inclinometer
TRIM DETAILS BUILD & PRICE
2025 Sierra HD 2500 Denali in Downpour Metallic.

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DENALI

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AVAILABLE TOW UP TO 13,970 KG (30,800 LBS.)†

KEY FEATURES

  • 20" Ultra-Bright machined wheels with bright chrome inserts†
  • Denali-exclusive authentic open-pore wood, patterned aluminum trim and forge perforated leather seating surfaces
  • 12-way heated and ventilated power front seats

 AVAILABLE FEATURES

  • Duramax 6.6L Turbo-Diesel V8 engine with Allison 10-speed automatic transmission
  • Power sunroof 
  • Rear Camera Mirror†
TRIM DETAILS BUILD & PRICE
2025 Sierra HD 2500 AT4X in Volcanic Red Tintcoat.

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AT4X†

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AVAILABLE TOW UP TO 8391 KG (18,500 LBS.)† 

KEY FEATURES

  • Factory-installed 1.5" suspension lift, Multimatic® DSSV dampers, rear electronic-locking differential, larger steel transfer case skid plate and front aluminum skid plate
  • 35" Goodyear® Territory MT tires
  • 16-way heated and ventilated power front seats with massage feature
  • Obsidian Rush interior featuring full-grain leather seating with technical-grain leather accents and authentic Vanta Ash wood 

 AVAILABLE FEATURES

  • AT4X AEV Edition featuring stamped steel bumpers, skid plates, steering gear and transfer case, and 18" Salta gloss-black wheels
  • Duramax 6.6L Turbo-Diesel V8 engine with Allison 10-speed automatic transmission
TRIM DETAILS BUILD & PRICE
2025 Sierra HD 2500 Denali Ultimate in Titanium Rush.

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DENALI ULTIMATE

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AVAILABLE TOW UP TO 13,925 KG (30,700 LBS.)† 

KEY FEATURES

  • Duramax 6.6L Turbo-Diesel V8 engine with Allison 10-speed automatic transmission
  • Signature Vader Chrome grille with High Gloss Black surround and exclusive 20" Ultra-Bright machined aluminum wheels with gloss-black inserts† 
  • Exclusive Alpine Umber interior featuring full-grain leather seating, authentic open-pore 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

 AVAILABLE FEATURES

  • Auxiliary trailer camera
TRIM DETAILS BUILD & PRICE

SIERRA HD COLOURS
BUILD & PRICE

CAPABILITY

Serious power. Serious trailering.
A 2025 GMC Sierra HD truck towing a trailer thorugh a rocky terrain.
Front-side view of the 2025 GMC Sierra HD truck towing a large trailer on a cliffside road.

DURAMAX 6.6L TURBO-DIESEL V8 ENGINE

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

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SERIOUS TOWING POWER

The 2500 Crew Cab offers available max towing of up to 9,920 kg (21,870 lbs.).† 

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ADVANCED TRAILERING TECH

The 2025 Sierra Heavy Duty offers the most trailering assistance technologies in its class,† so you can trailer with more confidence.

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INTERIOR

Premium interiors to make every trip first-class.
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16-WAY POWER FRONT SEATS WITH MASSAGING FEATURE

Experience serious comfort in Sierra Heavy Duty’s available best-in-class† 16-way power front seats with massaging feature.
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LUXURIOUS MATERIALS

Sierra HD Denali Ultimate’s Alpine Umber interior features full-grain leather seating, plaited contrast stitching, and embossed and laser-etched topographical map patterns of Mt. Denali’s summit.
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SPACIOUS CABIN

The Sierra Heavy Duty truck features best-in-class Crew Cab front head and leg room.†

TECHNOLOGY

Keep informed and in command.
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13.4" DIAGONAL CENTRE TOUCHSCREEN

This tablet-style touchscreen — the largest in its class† — is the customizable, high-tech centrepiece of the cabin.
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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.

VIEW DETAILS

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12.3" DIAGONAL COLOUR DRIVER INFORMATION CENTRE

Control and customize important vehicle, driving and infotainment content in high-resolution clarity with an available 12.3" diagonal digital Driver Information Centre.

EXTERIOR

Powerfully bold. Stands out proud.
Three 2025 GMC Sierra HD trucks parked near each other outdoors during a sunny day.
Close up view of the chrome grilles on the 2025 GMC Sierra HD truck.

BOLD FRONT END

Stand out everywhere you go with GMC Sierra HD Denali’s iconic chrome grille, front bumper and fascia.
Front view of the 2025 GMC Sierra HD truck with its headlights on.

LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING

LED projector headlamps with striking animated sequences help enhance Sierra Heavy Duty’s impressive exterior design.
2025 GMC Sierra HD truck with its tailgate open.

SIX-FUNCTION MULTIPRO TAILGATE

The powerfully innovative available MultiPro Tailgate combines six convenient functions to help make light work of almost any job in your work truck.

VIEW DETAILS

SAFETY

Front-side view of the 2025 GMC Sierra HD truck towing a trailer through an arid terrain.

SIERRA HD PRO SAFETY

Every GMC Sierra 2500 HD and GMC Sierra 3500 HD work truck 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
Automatic Emergency Braking
VIEW MORE SAFETY 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.

GALLERY

VIEW FULL GALLERY
Wide Interior View of a 2025 GMC Sierra HD Truck

VIEW INTERIOR
Driver's Interior View of the Steering Wheel, Infotainment System and Dashboard in a 2025 GMC Sierra HD truck.
A 2025 GMC Sierra HD truck driving on Rocky Terrain.

VIEW EXTERIOR
Close-up View of the Grille and Underside of a 2025 GMC Sierra HD Truck parked on Uneven Terrain.

GET EMAIL UPDATES

Be among the first to receive the latest updates and info about the GMC Sierra Heavy Duty truck.

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Π Offer to qualified retail customers on new in-stock 2025 GMC models, while supplies last. Must be financed on approved credit through participating partner lenders between October 1-27, 2025 for Sierra 1500, Sierra 2500/3500 diesel engine, & Sierra EV trucks; or October 1 - 31, 2025 for all other models. 0% for 36 months on 2025 Canyon, Sierra 1500 Double/Regular Cab, Sierra 2500/3500, Sierra EV, Acadia, Yukon, Savanna, Yukon XL, Hummer EV SUV/SUT. 0% up to 60 months on 2025 Terrain. 0% up to 84 months on 2025 Sierra 1500 Crew Cab. Example includes any identified incentives and is based on a 2025 Sierra HD AT4 with purchase price of $101,035 financed at 0% APR equals $778 bi-weekly for 312 weeks with $0 down payment/trade. 156 payments required. Cost of borrowing: $0 for a total obligation of $101,035. Includes freight; $100 A/C charge; up to $699 dealer fee; estimated federal luxury tax, if applicable to your vehicle; and up to $159.53 lien registration fees (government fee and agent fee) and other fees, levies and duties (which may vary by term, region and/or dealer). Licence, insurance, duty on new tires (QC only) and applicable sales taxes are extra. Down payment and/or security deposit may be required. Payment and cost of borrowing will vary depending on amount borrowed and down payment/trade. Dealers may sell for less. If applicable, factory order or dealer trade may be required but may not always be available. Offers cannot be combined with certain other offers and may be modified or terminated by General Motors at any time without notice. Conditions apply. See participating dealer for details.

Π Offer to qualified retail customers on new in-stock 2025 GMC models, while supplies last. Must be financed on approved credit through participating partner lenders between October 1-27, 2025 for Sierra 1500, Sierra 2500/3500 diesel engine, & Sierra EV trucks; or October 1 - 31, 2025 for all other models. 0% for 36 months on 2025 Canyon, Sierra 1500 Double/Regular Cab, Sierra 2500/3500, Sierra EV, Acadia, Yukon, Savanna, Yukon XL, Hummer EV SUV/SUT. 0% up to 60 months on 2025 Terrain. 0% up to 84 months on 2025 Sierra 1500 Crew Cab. Example includes any identified incentives and is based on a 2025 Sierra HD AT4 with purchase price of $101,035 financed at 0% APR equals $778 bi-weekly for 312 weeks with $0 down payment/trade. 156 payments required. Cost of borrowing: $0 for a total obligation of $101,035. Includes freight; $100 A/C charge; up to $699 dealer fee; estimated federal luxury tax, if applicable to your vehicle; and up to $159.53 lien registration fees (government fee and agent fee) and other fees, levies and duties (which may vary by term, region and/or dealer). Licence, insurance, duty on new tires (QC only) and applicable sales taxes are extra. Down payment and/or security deposit may be required. Payment and cost of borrowing will vary depending on amount borrowed and down payment/trade. Dealers may sell for less. If applicable, factory order or dealer trade may be required but may not always be available. Offers cannot be combined with certain other offers and may be modified or terminated by General Motors at any time without notice. Conditions apply. See participating dealer for details.