
2026 GMC Sierra 2500HD Feature Breakdown
Performance
The new Sierra 2500HD balances the competing demands of smooth ride delivery and powerful performance capabilities with finesse. If you need to quickly haul something large, this model is capable of towing 22,500 lbs. with the proper powertrain and equipment. Throw in a ruggedly-imagined selection of drivetrain setups, and the new GMC Sierra 2500HD makes good on the relaxed yet gutsy ride that pickup owners expect. You’ll find more available performance specs of this truck below:
- Front Pedestrian Braking
- StabiliTrak, electronic stability control system with traction control
- Automatic Emergency Braking
Technology
The new Sierra 2500HD comes equipped with the tools you need to keep your passengers safe and entertained. The newest model is available with the latest safety innovations from GMC, which will help you watch the road and cover your blind spots. GMC ups the ante when it comes to customization on the new Sierra 2500HD by delivering a variety of available infotainment options. Check out even more of the available technology features here:
- Forward Collision Alert
- Front and Rear Park Assist
- Rear Seat Belt Indicator
Design
The rugged exterior styling and practical interior layout show GMC’s dedication to making the Sierra 2500HD an attractive, capable truck. With 83.5 cu ft of bed space and 6 (Double/Crew Cab) or 3 (Regular Cab) seating capacity, you don’t have to be picky about what you take with you. Beyond offering space, the new Sierra 2500HD’s available passenger comfort options can help the interior deliver a supremely comfortable ride. Learn more about what the Sierra 2500HD has to offer design-wise here:
- 17″ LT265/70R17E all-terrain, blackwall tires
- Solar-absorbing glass
- 6-speaker audio system
Get the 2026 GMC Sierra 2500HD in Stonington, CT
To see if the Sierra 2500HD lives up to the hype, come see it on our lot. We have a team on hand to tell you about the new GMC cars for sale in Stonington, CT at our store. Browse our GMC specials, and schedule a test drive today.*MSRP: Starting price represents the manufacturer’s suggested retail price (MSRP) for the trim. The MSRP does not include destination and handling charges, taxes, title, license, options, and dealer charges. Actual prices are set by the dealer and may vary. Photo is for marketing and example purposes only. Photo may not reflect starting MSRP or trim level.\n**EPA-estimated MPG for City/Highway for 2026 GMC Sierra 2500HD . Actual mileage will vary. Displayed MPG is based on applicable EPA mileage ratings. Use for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors.


