New GMC Sierra 3500 in Rexburg, ID near Idaho Falls

Performance

The 2026 GMC Sierra 3500HD offers two powerful engine options to suit your specific needs. The standard 6.6-liter V8 gasoline engine generates an impressive 401 horsepower and 464 pound-feet of torque, providing ample power for most towing and hauling tasks. For those who demand even more capability, the 6.6-liter V8 Duramax Turbo Diesel engine produces an incredible 470 horsepower and 975 lb-ft of torque, making it an ideal choice for heavy-duty applications. Enjoy a smooth and efficient 10-speed automatic transmission, optimizing performance and fuel economy.

When properly equipped, the 2026 Sierra 3500HD can tow up to an astounding 36,000 pounds, making it one of the most capable trucks in its class. Ammon drivers will appreciate the available ProGrade Trailering System, which includes features like Trailer Sway Control, Hill Start Assist, and Auto Electric Parking Brake to make towing safer and more convenient.

Interior

The 2026 GMC Sierra 3500HD's interior offers ample room for both passengers and gear, with premium materials and thoughtful design elements throughout. The 13.4-inch infotainment with built-in Google apps, including navigation and voice assistance, ensures that you stay connected and entertained on even the longest journeys.

For added comfort, the Sierra 3500HD offers available features like heated and ventilated front seats, perfect for chilly mornings in Shelly or hot summer days in Rexburg. The available Bose Premium Sound System with Richbass woofer surrounds you with immersive audio, making every drive a more enjoyable experience. With the Sierra 3500HD's well-appointed interior, you'll arrive at your destination feeling refreshed and ready to tackle the day.

A Bold and Rugged Exterior

The 2026 GMC Sierra 3500HD's exterior design exudes capability. The available MultiPro Tailgate offers six versatile positions, making it easier than ever to load and unload cargo. Choose from a variety of wheel options, including the eye-catching 20-inch machined aluminum wheels with Dark Grey metallic accents, to further enhance the truck's rugged appeal.

For those who need to navigate off-road terrain, the available X31 Off-Road and Protection Package adds off-road suspension, skid plates, and all-terrain tires, ensuring that your Sierra 3500HD is ready for any adventure. With its bold and aggressive styling, the Sierra 3500HD is sure to turn heads wherever you go in Idaho Falls.

Advanced Safety Features

The 2026 GMC Sierra 3500HD is equipped with a comprehensive suite of advanced safety and driver assistance technologies, designed to help keep you and your passengers safe on the road. Features like Automatic Emergency Braking, Forward Collision Alert, and Lane Departure Warning work together to help prevent accidents before they occur. The available HD Surround Vision provides a bird's-eye view of the vehicle's surroundings, making it easier to navigate tight spaces and avoid obstacles in Ucon.

For added confidence when towing, the Sierra 3500HD offers available features like Trailer Side Blind Zone Alert, which helps you monitor blind spots when changing lanes with a trailer attached. With these advanced safety features, you can drive with peace of mind knowing that your Sierra 3500HD is working to protect you and your loved ones.

Experience the 2026 GMC Sierra 3500HD at Liberty GMC

To truly appreciate the power, capability, and comfort of the 2026 GMC Sierra 3500HD, we invite you to visit Liberty GMC in Rexburg. Don't forget to explore our new vehicle promotions for exciting offers on the Sierra 3500HD and other GMC models.

Visit our dealership today and discover why the 2026 GMC Sierra 3500HD is the ultimate choice for those who demand the best in heavy-duty pickup trucks. With its unrivaled performance, refined interior, bold exterior, and advanced safety features, the Sierra 3500HD is ready to tackle any job you throw its way.