2026

GMC Sierra 2500HD

KEY FEATURES

AVAILABLE

MULTIPRO™ TAILGATE

AVAILABLE

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

AVAILABLE

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

* Requires a 3500 HD Regular Cab long bed 2WD DRW model with available Duramax 6.6L Turbo-Diesel V8 engine, Max Trailering Package, gooseneck hitch, Convenience Package and 120-volt power outlet. Maximum trailering ratings are intended for comparison purposes only. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner's Manual. The trailering capacity of your specific vehicle may vary. The weight of passengers, cargo and options or accessories may reduce the amount you can trailer.

EXPLORE SIERRA HEAVY DUTY TRIMS

The GMC Sierra Heavy Duty is available in the hardworking Pro, the well-equipped SLT, the off-road ready AT4 and the luxurious Denali Ultimate trims.

PRO

KEY 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 bed volume
  • Wireless Apple CarPlay® and wireless Android Auto™ compatibility

KEY AVAILABLE FEATURES

  • Duramax 6.6L Turbo-Diesel V8 engine with Allison 10-speed automatic transmission
  • Adaptive Cruise Control with trailering

SLE

INCLUDES PRO KEY 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 

KEY 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

SLT

INCLUDES SLE KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTE

  • 10-way power driver and front outboard passenger heated seats with lumbar
  • Heated steering wheel
  • ProGrade® Trailering System with In-Vehicle Trailering App
  • 18" machined aluminum wheels with dark grey metallic accents 

KEY AVAILABLE FEATURES

  • 10-way power-adjustable front heated and ventilated bucket seats with perforated leather appointments
  • MultiPro Tailgate and MultiPro Tailgate Audio System by Kicker

AT4

INCLUDES SLT KEY 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 with trailering

KEY AVAILABLE FEATURES

  • 15" diagonal Head-Up Display with off-road inclinometer

AT4X

INCLUDES AT4 KEY 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 

KEY 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

DENALI

INCLUDES SLT KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES

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

KEY AVAILABLE FEATURES

  • Duramax 6.6L Turbo-Diesel V8 engine with Allison 10-speed automatic transmission
  • Power sunroof
  • Rear Camera Mirror

DENALI ULTIMATE

INCLUDES DENALI KEY 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 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

KEY AVAILABLE FEATURES

  • Auxiliary trailer camera

TECHNOLOGY

13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM*

The color touchscreen with Google built-in** compatibility and voice-activated technology for your phone provides a seamless way to customize your entertainment.

* Not available on Pro. Functionality varies by model. Full functionality requires compatible Bluetooth and smartphone, and USB connectivity for some devices.
** Google built-in services are subject to limitations and availability may vary by vehicle, infotainment system, and location. Select service plan required. Certain Google Actions and functionality may require account linking. User terms and privacy statements apply. Google, Android Auto, Google Play, and Google Maps are trademarks of Google LLC.

INTERIOR

16-WAY POWER FRONT SEATS WITH MASSAGING FEATURE

Experience serious comfort in the Sierra Heavy Duty truck'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 its namesake's mountain summit.

SPACIOUS CABIN

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

* Based on latest competitive data available.

CAPABILITY

DURAMAX 6.6L TURBO-DIESEL V8 ENGINE

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

SERIOUS TOWING POWER

The GMC Sierra 2500 HD Crew Cab offers available max towing of up to 21,870 lbs.*

* Requires a Crew Cab long bed 2WD model with available Duramax 6.6L Turbo-Diesel V8 engine, Max Trailering package, Gooseneck/Fifth-Wheel Prep Package, 18" or 20" wheels and tires and gooseneck/fifth-wheel hitch. Maximum trailering ratings are intended for comparison purposes only. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner's Manual. The trailering capacity of your specific vehicle may vary. The weight of passengers, cargo and options or accessories may reduce the amount you can trailer.

SAFETY

SIERRA HD PRO SAFETY*

Every GMC Sierra 2500 HD and GMC Sierra 3500 HD truck includes safety and driver assistance technologies that help while driving and trailering.

  • Forward Collision Alert
  • Following Distance Indicator
  • Front Pedestrian Braking
  • IntelliBeam
  • Lane Departure Warning
  • Automatic Emergency Braking
  • Buckle to Drive

* 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.

The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment.

Dealer sets final price.

GM Employee Discount Program (EVPP) A. Eligible Participants - This Program is available only to: 1) Active GM employees. 2) Retired GM employees. 3) Former GM employees with more than 5 total years of cumulative service. 4) Widows/widowers of former GM employees with more than 5 total years of cumulative service. B. Sponsored Purchasers Eligible active, retired, former hourly or salaried GM employees with more than 20 total years of cumulative service, and widows and widowers of former GM employees with more than 20 total years of cumulative service can sponsor the following purchasers: their spouse, children, stepchildren, grandchildren, stepgrandchildren, grandparents (including in-law and step), parents, stepparents, siblings (including full, half and step), mother-/father-in-law, sons-/ daughters-in-law, brothers-/sisters-in-law, aunts, uncles, nieces and nephews. Eligible former hourly or salaried GM employees with 5-20 total years of cumulative service and widows and widowers of former GM employees with 5-20 total years of cumulative service can sponsor the following purchasers: their spouse and dependent children. (Children must be under 21 years of age or full-time students under 25 years of age at the time of purchase.) May not be compatible with all offers. See dealer for details.

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  1. Baker Buick GMC Lowell

    746 W Main St
    Lowell, MI 49331

    • Sales: (616) 319-1385
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