2026 GMC Sierra 2500 HD Exterior Design

With its powerful stance and striking design, the 2026 GMC Sierra 2500 HD commands attention. Practical touches like durable 17-, 18-, 20-, or 22-inch wheels, LED exterior lighting, and heated, multi-function vertical trailering mirrors help enhance every task at home or on the jobsite. Additionally, the Sierra 2500 HD offers a wealth of impressive bed features, including a MultiPro™ tailgate, a side bed step, a CornerStep rear bumper, and cargo area LED lighting.

Available exterior features include:

• 17-, 18-, 20-, or 22-in. wheels
• Animated LED projector headlamps with LED turn signals and daytime running lamps
• Animated LED signature taillamps with stop, turn, and reverse lamps
• LED fog lamps
• Heated, auto-dimming, and power-folding/-extending vertical trailering mirrors
• Side bed step
• CornerStep rear bumper
• 12 cargo tie-downs
• EZ Lift tailgate with power lock and release
• Rainsense™ automatic wipers
• Cargo area LED lighting
• GMC MultiPro tailgate

2026 GMC Sierra 2500 HD Interior Design & Technology

Inside the GMC Sierra 2500 HD, comfort and practicality come together for every drive. The cabin features durable, high-quality seat materials, including cloth, vinyl, perforated leather, and full-grain leather. Additionally, you can arrive at your destination feeling refreshed with available front-seat features like 16-way power adjustability, massage functionality, heating, and ventilation. On higher-level trims, rear-seat passengers can enjoy heated outboard seats.

Stay connected on the go with a brilliant 13.4-inch GMC Premium Infotainment System that offers Google built-in services, wireless Apple CarPlay® and Android Auto™ integration, and Bluetooth®. Charge on the go with available wireless device charging, and use an optional Wi-Fi® hotspot to stay in touch. Enjoy premium sound inside the cabin with the available Bose® system, or be the talk of the block party with the available MultiPro tailgate audio system by Kicker®.

Available interior features include:

• 16-way power-adjustable and massaging front seats
• Cloth, vinyl, perforated leather, or full-grain leather seats
• Heated and ventilated front seats
• Heated rear outboard seats
• 40/20/40 split-bench front seat with under-seat storage
• 60/40 split-folding rear bench seat
• Dual-zone automatic climate control
• Heated steering wheel
• Power-sliding rear window with rear defogger
• Power sunroof

Available technology features include:

• 12.3-in. color driver information center
• 13.4-in. GMC Premium Infotainment System with Google built-in
• Bluetooth
• Wireless Apple CarPlay and Android Auto
• Wi-Fi hotspot capable
• SiriusXM® 360L capable
• In-vehicle trailering app
• Wireless charging
• Six speakers, or Bose seven- or 12-speaker premium sound systems
• MultiPro tailgate audio system by Kicker

2026 GMC Sierra 2500 HD Engine & Performance

Powerful, capable, and built to impress, the 2026 GMC Sierra 2500 HD offers a stellar engine lineup for every task. The standard 6.6L V8 gas engine offers 401 horsepower and 464 pound-feet of torque — perfect for your everyday needs between home and work. If your next job requires more power, the available 6.6L Duramax® turbo diesel V8 engine offers 470 horsepower and an impressive 975 pound-feet of torque. Both engine options offer either rear-wheel drive (RWD) or four-wheel drive (4WD) capabilities and come standard with an Allison® ten-speed automatic transmission.

When you want to maximize your truck’s towing prowess, configure the GMC Sierra 2500 HD with the crew cab to tow up to 21,870 pounds.

See the accompanying chart for engine specifications.

2026 GMC Sierra 2500 HD Capacity & Seating

The 2026 GMC Sierra 2500 HD is designed to handle both work and everyday life with ease. Choose between an 82.25-inch standard bed or a 98.27-inch long bed, and three cab options to suit your needs. The regular cab seats three and comes exclusively with the long bed, while the double cab and crew cab can carry up to six passengers and are available with either bed length, offering maximum flexibility for any task.

See the accompanying chart for capacity and seating specifications.

2026 GMC Sierra 2500 HD Safety Options

The 2026 GMC Sierra 2500 HD helps you drive with confidence, offering a full suite of safety and driver assistance features. Standard Sierra HD Pro Safety technologies boost on-road awareness, while available options like HD surround vision, transparent trailer view, trailer side blind zone alert, and the ProGrade® trailering system give you a clearer perspective when towing. Additionally, up to 14 unique camera views help you keep a close eye on everything from your trailer to the road beneath your vehicle for unseen obstacles in your path.

Available safety features include:

• Sierra HD Pro Safety
  • Forward collision alert
  • Following distance indicator
  • Front pedestrian braking
  • IntelliBeam® automatic high beams
  • Lane departure warning
  • Buckle to Drive technology
  • Automatic emergency braking
• HD rear vision camera
• Teen Driver technology
• Adaptive cruise control
• Front and rear park assist
• HD surround vision
• Trailer side blind zone alert
• Rear cross-traffic alert
• Safety alert seat
• Bed view camera
• Trailering camera provisions

2026 GMC Sierra 2500 HD Available Colors

• Summit White
• Coastal Dune
• Onyx Black
• Cardinal Red
• Sterling Metallic
• Downpour Metallic
• Titanium Rush Metallic
• Volcanic Red Tintcoat
• Glacier White Tricoat

2026 GMC Sierra 2500 HD Available Trims

• Pro $49,295*
• SLE $56,095*
• SLT $67,295*
• AT4 $74,195*
• Denali $77,595*
• AT4X $86,295*
• Denali Ultimate $96,395*

Learn More About the GMC Sierra 2500 HD

The professionals at Dralle Chevrolet Buick GMC are ready to help you find the GMC Sierra 2500 HD that speaks to you. Utilize our detailed trims guide to compare each model’s standard features and price. Then, schedule a test drive at our dealership in Watseka, IL, to experience your ideal trim from our inventory below. Have questions? Contact us online or call us at (815) 432-4948.