You are currently viewing GMC.com (United States). Close this window to stay here or choose another country to see vehicles and services specific to your location.

2025 GMC SIERRA HEAVY DUTY

2500 & 3500 HEAVY-DUTY PICKUP TRUCKS

DENALI ULTIMATE AS SHOWN: $93,295*

AT4X AS SHOWN: $83,845*

PRO STARTING AT

$46,300*

AVAILABLE TOW UP TO

36,000 LBS.*

KEY FEATURES

AVAILABLE

MULTIPRO™ TAILGATE

AVAILABLE

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

AVAILABLE 

3500 MAX TOWING OF UP TO 36,000 LBS.*

OFFERS MORE

TRAILERING-ASSISTANCE TECHNOLOGIES THAN ANY COMPETITOR 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

GMC SIERRA HEAVY DUTY

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

"... with the grunt of the [available] Duramax diesel engine, the truck can propel itself up and over just about any obstacle you might reasonably expect to encounter in a hypothetical ranch-truck situation ..."

— Cars.com

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.

DOWNLOAD SIERRA HD FEATURES & OPTIONS GUIDE

As Shown $52,800*

PRO

STARTING AT

$46,300*

AVAILABLE TOW UP TO

36,000 LBS.*

TOW UP TO

36,000 LBS.*

STANDARD FEATURES

  • 6.6L V8 gas engine with Allison® 10-speed automatic transmission
  • Trailering Package, Trailering Mirrors and Trailer Brake Controller
  • Best-in-class HD cargo box volume*
  • 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*

As Shown $57,595*

SLE

STARTING AT

$50,400*

AVAILABLE TOW UP TO

35,500 LBS.*

TOW UP TO

36,000 LBS.*

INCLUDES PRO STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES

  • 13.4" diagonal center touchscreen and 12.3" diagonal digital Driver Information Center
  • Traction Select System with Tow/Haul mode*
  • 17" machined aluminum wheels 

 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

As Shown $65,795*

SLT

STARTING AT

$60,100*

AVAILABLE TOW UP TO

31,440 LBS.*

TOW UP TO

36,000 LBS.*

INCLUDES SLE STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES

  • 10-way power driver and front outboard 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 

 AVAILABLE FEATURES

  • 10-way power-adjustable front heated and ventilated bucket seats with perforated leather appointments

As Shown $71,000*

AT4

STARTING AT

$71,000*

AVAILABLE TOW UP TO

21,300 LBS.*

TOW UP TO

17,300 LBS.*

INCLUDES SLT STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES

  • 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

As Shown $74,395*

DENALI

STARTING AT

$73,900*

AVAILABLE TOW UP TO

30,800 LBS.*

TOW UP TO

30,800 LBS.* 

INCLUDES SLT STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES

  • 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*

As Shown $83,845*

AT4X*

STARTING AT

$83,200*

AVAILABLE TOW UP TO

18,500 LBS.*

TOW UP TO

18,500 LBS.* 

INCLUDES AT4 STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES

  • 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, steering gear and transfer case skid plates, and 18" Salta gloss-black wheels
  • Duramax 6.6L Turbo-Diesel V8 engine with Allison 10-speed automatic transmission

As Shown $93,295*

DENALI ULTIMATE

STARTING AT

$92,800*

AVAILABLE TOW UP TO

30,700 LBS.*

TOW UP TO

30,700 LBS.*

INCLUDES DENALI STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES

  • Duramax 6.6L Turbo-Diesel V8 engine with Allison 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 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

SIERRA HD COLORS

CAPABILITY

Serious power. Serious trailering.

See what’s behind heavy-duty DNA. Pull your world—and up to 36,000 lbs. of max available towing. Tow hitches, prepare for glory.

1/#

FEATURE HIGHLIGHT TITLE

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

1/#

FEATURE HIGHLIGHT TITLE

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

1/#

FEATURE HIGHLIGHT TITLE

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

1/#

FEATURE HIGHLIGHT TITLE

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

ADVANCED TRAILERING TECH

The 2025 Sierra Heavy Duty offers more trailering-assistance technologies than any competitor in its class,* so you can trailer with confidence.

VIEW DETAILS

2024 IMAGE SHOWN

ADAPTIVE CRUISE CONTROL WITH TRAILERING

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

2024 IMAGE SHOWN

1 of 3

PROGRADETM TRAILERING TECH

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

2 of 3

UP TO 14 AVAILABLE CAMERA VIEWS INCLUDING TRANSPARENT TRAILER VIEW

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

2024 IMAGE SHOWN

3 of 3

ADAPTIVE CRUISE CONTROL WITH TRAILERING

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

INTERIOR

Premium interiors to make every trip first-class.

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.

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.

SPACIOUS CABIN

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

SIERRA HD COLORS

INTERIOR
EXTERIOR

Due to current supply-chain shortages, certain features shown have limited or late availability, or are no longer available. See the window label or a dealer regarding the features on an individual vehicle. 

TECHNOLOGY

Keep informed and in command.

TOP OF THE CLASS

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.

13.4" DIAGONAL CENTER TOUCHSCREEN

This available tablet-style touchscreen — the largest in its class* — is the customizable, high-tech centerpiece of the cabin.

12.3" DIAGONAL COLOR DRIVER INFORMATION CENTER

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

EXTERIOR

Powerfully bold. Stands out proud.

BOLD FRONT END

Stand out everywhere you go with GMC Sierra HD Denali’s iconic chrome grille, front bumper and fascia.

LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING

LED projector headlamps with striking animated sequences help enhance Sierra Heavy Duty’s impressive exterior design.

SAFETY

SIERRA HD PRO SAFETY

Every GMC Sierra 2500 HD and GMC Sierra 3500 HD trucks include 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 

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.

VIEW FULL GALLERY

VIEW INTERIOR

VIEW EXTERIOR

GET EMAIL UPDATES

Sign up today to receive the latest updates and info on the 2025 GMC Sierra Heavy Duty truck.