What's New for 2026?
The 2026 GMC Sierra 2500 HD continues its reign as one of the most capable and refined heavy-duty pickup trucks on the market. While the major powertrain and interior upgrades carry over from the 2025 Sierra , GMC adds new Glacier White Tricoat and Coastal Dune paint colors for 2026, replacing White Frost Tricoat and Thunderstorm Gray. The MultiPro tailgate also becomes more widely available across trims, giving Conway truck owners even more flexibility on the job site or off the beaten path.
Under the hood, two powertrains deliver serious performance:
-A 6.6-liter V8 gas engine producing 401 horsepower and 464 lb-ft of torque.
-The available 6.6-liter Duramax Turbo-Diesel V8 generates 470 horsepower and a commanding 975 lb-ft of torque.
Both pair with a 10-speed automatic transmission that provides smooth shifts and confident towing power. From hauling equipment across Central Arkansas to towing a trailer through the Ozarks, the 2026 Sierra 2500 HD is built to handle every challenge with confidence.
Key Features of the 2026 GMC Sierra 2500 HD
See why the 2026 Sierra 2500 HD is different from other heavy-duty trucks:
-Best-in-class heavy-duty cargo bed volume
-Maximum towing capacity up to 22,500 pounds
-Choice of 6.6L gas or Duramax Turbo-Diesel engine
-10-speed automatic transmission standard on all models
-LED headlights and taillights standard
-Available 13.4-inch center touchscreen and 12.3-inch digital driver display
-ProGrade Trailering System with In-Vehicle Trailering App
-Up to 14 available camera views with HD Surround Vision
-MultiPro Tailgate with available Kicker audio system
-Advanced off-road capability on AT4 and AT4X trims
-Luxurious Denali and Denali Ultimate interiors
With this combination of power, technology, and refinement, the 2026 Sierra 2500 HD stands out as the ultimate heavy-duty pickup for drivers in Conway and across the Little Rock area.
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Next-Gen Safety
Every 2026 Sierra 2500 HD is equipped with intelligent safety and driver-assistance systems to help protect you, your passengers, and your cargo.
Standard features include:
-Forward Automatic Emergency Braking
-Lane Departure Warning
-Automatic High-Beam Headlights
-Trailer Brake Controller
Available on select trims:
-Rear Automatic Braking
-Blind Spot Monitoring with Trailer Coverage
-Adaptive Cruise Control with Trailering
From navigating I-40 to backing up at a worksite in Conway, these advanced systems deliver peace of mind every mile.
Advanced Technology
Inside the 2026 Sierra 2500 HD, technology takes center stage. Depending on the trim, you’ll find features such as:
-A 13.4-inch infotainment touchscreen with Google built-in
-12.3-inch digital driver display
-Wireless Apple CarPlay and Android Auto
-Up to 12-speaker Bose premium sound system
-Head-Up Display and Digital Rearview Mirror on select trims
The ProGrade Trailering System adds tools like Hitch Guidance, a Bed View camera, and a trailer monitoring app. All are ideal for towing boats, campers, or heavy work equipment around Central Arkansas. Check out the best GMC trucks for towing .
Spacious & Comfortable
The 2026 Sierra 2500 HD balances work-ready toughness with refined comfort. Crew Cab models offer generous rear legroom, while available 16-way power front seats with massage function elevate long drives into luxury experiences. Higher trims feature soft-touch materials, open-pore wood, and contrast stitching.
Even the Pro and SLE trims offer durable, easy-to-clean interiors perfect for jobsite use. They also have clever storage, such as under-seat bins and multiple cubbies throughout the cabin.
Trim Highlights & Available Options
Pro
-6.6L V8 gas engine with 10-speed automatic
-LED headlights and taillights
-Trailering Package with integrated Trailer Brake Controller
-Best-in-class HD cargo bed volume
-Optional Duramax Diesel and Adaptive Cruise Control
SLE
-Adds 13.4-inch touchscreen and 12.3-inch digital cluster
-Traction Select System with Tow/Haul mode
-Rubber floormats and keyless entry
-Optional MultiPro Tailgate, up to 13 camera views, and X31 Off-Road Package
SLT
-10-way heated power front seats and heated steering wheel
-ProGrade Trailering System with In-Vehicle Trailering App
-Optional ventilated leather bucket seats
AT4
-Jet Black interior with Kalahari accents
-Off-Road Suspension with Rancho shocks and skid plates
-20-inch gloss-black wheels and available Head-Up Display
AT4X
-Factory 1.5-inch lift and Multimatic DSSV dampers
-Rear electronic-locking differential and steel skid plates
-16-way power front seats with massage and premium Obsidian Rush leather
-Optional AEV Edition with steel bumpers and unique wheels
Denali
-Authentic wood and leather-appointed interior
-20-inch Ultra-Bright machined aluminum wheels
-Available Duramax Diesel, power sunroof, and Rear Camera Mirror
Denali Ultimate
-Standard Duramax Diesel with 10-speed automatic
-Signature Vader Chrome grille and 20-inch gloss-black wheels
-Alpine Umber interior with full-grain leather and Paldao wood
-Panoramic sunroof
-12-speaker Bose audio, illuminated power steps, and MultiPro Tailgate Audio System
Warranty Coverage
Every 2026 Sierra 2500 HD comes backed by GMC’s solid warranty package:
-Limited Warranty: 3 years/36,000 miles
-Powertrain Warranty: 5 years/60,000 miles
-Complimentary Maintenance: First scheduled visit included
That means peace of mind for heavy-duty truck owners in Conway, Little Rock, and nearby areas who depend on their vehicle every day.
Financing Options
At Crain Buick GMC in Conway, our finance team helps drivers across Central Arkansas find competitive truck loans and flexible lease options. Our Conway finance experts work with regional banks and credit unions to ensure you get the right plan for your budget. Whether you’re upgrading your fleet or purchasing your first Sierra HD, we’ll tailor a financing solution to fit your needs.
Learn more or get pre-approved today!
Crain Buys Cars
Looking to trade in or sell your current truck? Crain Buick GMC makes it easy. We buy cars, trucks, and SUVs—even if you don’t buy from us. Get a quick, fair offer for your vehicle and put the value toward your next Sierra HD. Start the process now at
Crain Buys Cars .
Shop the 2026 GMC Sierra 2500 HD in Conway, AR
From its commanding diesel power and off-road capability to its refined
Denali luxury , the 2026 GMC Sierra 2500 HD proves you don’t have to sacrifice comfort for strength.
Visit Crain Buick GMC in Conway today and test-drive the new 2026 Sierra 2500 HD—where Central Arkansas drivers find strength and style. Explore our full selection now, serving Little Rock, North Little Rock, Benton, and Bryant.