• GMC Buick
  • Auto Town GMC Gladstone, OR
  • Auto Town GMC

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  • Sales 503-342-8818
    • Service 503-342-8826
  • 19495 SE McLoughlin Blvd
    Gladstone, OR 97027
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GMC Buick
Auto Town GMC Gladstone, OR

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    • 2025 GMC Sierra 1500
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  • New
    • New Vehicles
    • Shop New Trucks
    • Shop New SUVs
    • Shop New EVs
    • Commercial Vehicles
    • Model Research
    • Auto Loan Savings Program
    • Trade Appraisal
    • GMC Tax Deductions
    • Shop Click Drive
    • GMC Compare Competitors
    • Sierra EV
  • Pre-Owned
    • Pre-Owned Vehicles
    • Why should I buy a used car from AutoTown?
    • Why Buy Used in 2026?
    • Trucks Under $40,000
    • Vehicles Under $20,000
    • Trade Appraisal
  • Sell/Trade
    • Sell My Vehicle
    • Sell or Trade
    • Value My Vehicle
    • Trade Appraisal
  • Specials
    • New Vehicle Specials
    • Used Vehicle Specials
    • GM Discount Programs
    • Service & Parts Specials
    • Tire Specials
  • Service & Parts
    • Schedule Service
    • Service Department
    • Service & Parts Specials
    • Order Parts
    • Accessories
    • Check Engine Light
    • Oil Change
    • Brake Service
    • Battery Service
  • Finance
    • Finance
    • Apply For A Loan
    • Easy Credit
    • Permaplate Protection
    • 2025 Federal Tax Deduction
    • What's My Buying Power
    • Trade Appraisal
    • GMC Protection
  • More
    • About Auto Town GMC
    • Ask Us a Question
    • Hours & Directions
    • Reviews
    • Why Service Here?
    • We're THE GMC Dealer for Metro Portland
    • We Have Satisfied Customers from Vancouver too
    • Serving Beaverton, OR
    • GM Rewards
  • Our Blog
  • Model Research
    • Model Research
    • 2025 GMC Sierra 1500
    • 2025 GMC Yukon
    • 2025 GMC Terrain
    • 2025 GMC Acadia
    • 2025 GMC Canyon in Gladstone, OR
    • 2025 GMC Hummer EV SUV in Gladstone, OR
    • 2025 GMC Sierra 2500HD in Gladstone, OR

2025 GMC Sierra HD

2025 GMC Sierra HD in Gladstone, OR

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2 Vehicles Available

2025 GMC Sierra HD

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.

THE POWER TO PULL YOUR WORLD

Sierra Heavy Duty is the real deal - with the strength and pulling power to haul heavy loads and the most available trailering-assistance technologies in its class3.
  • Available 6.6l Duramax Turbo Diesel V8 with new Turbocharger and Allison® 10-speed automatic transmission. Delivers 470 hp and 975 lb-ft of torque.
  • Standard 6.6L V8 gas engine is now paired with the Allison 10-speed automatic transmission. Delivers 401 hp and 464 lb-ft of torque.
  • Up to 14 available camera views4 including Transparent Trailer View. More views help to provide a more confident trailering experience.

SIERRA HEAVY DUTY ADVANCE TRAILERING

PROGRADETM TRAILERING TECH
  • This advanced suite of available intelligent technologies helps streamline the hitching and towing process with integrated tools that enhance your sense of safety, confidence and visibility.
UP TO 14 AVAILABLE CAMERA VIEWS4
  • More views help to provide a more confident trailering experience, such as transparent trailer view, which is now enhanced to enable compatibility with most gooseneck and fifth-wheel trailers.
ADAPTIVE CRUISE CONTROL5 WITH TRAILERING
  • This available feature is an all-new technology for Sierra Heavy Duty. It allows Sierra Heavy Duty’s available Adaptive Cruise Control to account for additional drag and increased braking distances when towing a trailer.

PREMIUM INTERIORS

Sierra Heavy Duty’s interiors are rugged and refined with premium materials to make every trip first-class.
  • Available Best-In-Class3 16-way power front seats with massaging feature
  • Available 10-way power-adjustable front heated and ventilated bucket seats
  • Best-In-Class3 crew cab front head and leg room

Denali Ulitmate Interior Shown

ADVANCED TECHNOLOGY

Sierra Heavy Duty’s available massive customizable screens and advanced tech help keep you informed and in command.
  • Sierra Heavy Duty offers the most trailering-assistance tech in its class3 thanks to smart HDNA.
  • Available 13.4" Diagonal Center Touch-Screen—the largest in its class3
  • 12.3" Diagonal Digital Driver Information Center
  • The spacious, comfortable cabin offers innovative driver-centric technologies such as the Bose6
  • Premium Sound System with Richbass woofer.

SIERRA HD PRO SAFETY

Every Sierra Heavy Duty includes active safety and driver-assistance technologies that help while driving and trailering. Sierra HD Pro Safety7 includes:
  • Forward Collision Alert
  • Following Distance Indicator
  • Front Pedestrian Braking
  • IntelliBeam
  • Lane Departure Warning
  • Buckle to Drive
  • Automatic Emergency Braking

POWERFULLY BOLD EXTERIOR

Sierra Heavy Duty’s impressive exterior stands out proudly everywhere you go.
  • New LED projector headlamps with striking animated sequences helps enhance Sierra Heavy Duty’s bold exterior design.
  • New front bumper, fascia and available redesigned Denali chrome grille
  • Available six-function MultiPro TailgateTM combines six convenient functions that help improve loading, unloading and accessing the cargo bed to make light work of almost any job.
 

Prices do not include additional fees including licensing government fees and taxes, any dealer documentation fees. $200.00 dealer doc fee. All prices, specifications and availability are subject to change without notice. All vehicles subject to prior sale. Dealer not responsible for pricing or equipment errors. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify all information prior.

The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

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Prices do not include additional fees including licensing government fees and taxes, any dealer documentation fees. $200.00 dealer doc fee. All prices, specifications and availability are subject to change without notice. All vehicles subject to prior sale. Dealer not responsible for pricing or equipment errors. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify all information prior.

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