Open Today Sales: 8:30 AM-6 PM
Bold design and even bolder capability are trademarks of the 2026 GMC Sierra HD. This heavy-duty truck combines ruggedness with refinement, providing amenities to make your journey more enjoyable. Not only is this truck capable of towing a heavy load, but it also has room for the entire family with two rows of seats.
Feel the power of the 2026 GMC Sierra HD with the Duramax 6.6L Turbo Diesel V8 engine. This engine is paired with a ten-speed automatic transmission for 470 horsepower and 975 lb.-foot of torque. You can tow up to 36,000 pounds with an exhaust brake for more control. Advanced technology assists you with towing through the ProGrade Trailering System, which helps you hitch your truck to a trailer or RV.
Practical features are noticeable everywhere on the 2026 GMC Sierra HD, starting with the MultiPro Tailgate. This unique tailgate provides several functions, including making it easier for you to load and unload cargo. Enjoy a little luxury inside the truck with 16-way power front seats that include a massage feature to relax tired muscles. Full-grain leather seats provide added refinement while contrast stitching adds a contemporary touch.
The 2026 GMC Sierra HD is loaded with technology, beginning with up to 14 camera views that provide a comprehensive look at your surroundings. Get a clearer look behind your trailer with Transparent Trailer View Monitor while keeping track of vehicle data with the 12.3-inch diagonal color Driver Information Center. Sierra HD ProSafety provides multiple safety systems to give you more confidence on the road. Technology is also fun with the MultiPro Tailgate by KICKER.
GMC didn’t make many changes on the 2026 model year for the Sierra HD. Two new colors have been added for the exterior with Coastal Dune and Glacier White Tricoat. The MultiPro Tailgate is now available as an option for the SLT trim.
The GMC Sierra HD is a practical and versatile pickup truck for a wide range of buyers in Marion. This truck can haul heavy loads to jobs around Herrin or pull an RV for a family vacation across the state. While it’s a practical choice as a work truck in Carbondale, the Sierra HD is capable enough to travel to the most remote job sites. Whether you like to work hard or play hard, the Sierra HD is an obvious choice when you need extra strength in your ride.
Buyers prefer shopping with Chris Auffenberg of Carbondale for their new vehicles, such as the 2026 GMC Sierra HD, because of our long-standing reputation. Our family of dealerships have been serving our local communities for more than 80 years. We’re dedicated to building relationships as well as selling cars. You can browse our inventory online or fill out the online application to get started. Contact us with any questions or stop by to talk to a member of our team.