Blog / GMC Model Features

2026 GMC Sierra 2500 Trim Levels

2026 GMC Sierra 2500 Driving Off Road

2026 GMC Sierra 2500 HD Trim Lineup Highlights

  • Seven Distinct Trim Levels: Choose from the work-ready Pro, tech-forward SLE, comfortable SLT, rugged AT4, extreme off-road AT4X, luxurious Denali, and the top-tier Denali Ultimate.
  • Heavy-Duty Powertrains: Powered standard by a 6.6L V8 gas engine or the available legendary Duramax® 6.6L Turbo-Diesel V8 engine delivering 470 hp and 975 lb-ft of torque.
  • Premium Innovations: Available 13.4-inch diagonal center touchscreen, up to 14 available camera views, and class-exclusive 16-way power front seats with massage functionality.
 

The 2026 GMC Sierra 2500 is a heavy-duty pickup truck offering the immense towing power, specialized capability, and premium performance that drivers throughout Phoenix and the surrounding areas crave. If you are ready to upgrade your pickup truck for tougher jobs or weekend adventures, learn about the versatile 2026 GMC Sierra 2500 trim levels with the team at Liberty GMC today. Whether the luxurious GMC Sierra 2500 highest trim option catches your eye—or any other dependable configuration—count on our dedicated truck experts in Peoria to guide you to the perfect match. Contact Liberty GMC today with your questions and to schedule an exclusive test drive!

 


2026 GMC Sierra 2500 Models & Configuration Highlights

Each 2026 GMC Sierra 2500 trim level offers a unique suite of standard and available features designed to make driving and trailering in Surprise and Glendale even safer, more productive, and thoroughly enjoyable. Check out what you can expect from each of the heavy-duty GMC Sierra 2500 models available in our showroom:

GMC Sierra 2500 HD Pro

The Pro trim serves as a robust, no-nonsense foundation engineered to handle challenging commercial job sites without breaking a sweat.

  • Standard Features: 6.6L V8 gas engine with 10-speed automatic transmission; Trailering Package, Trailering Mirrors, and Trailer Brake Controller; Best-in-class HD cargo bed volume; Wireless Apple CarPlay® and wireless Android Autoâ„¢ compatibility.
  • Available Features: Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission; Adaptive Cruise Control with trailering.

GMC Sierra 2500 HD SLE

The SLE trim bridges the gap between commercial utility and everyday convenience by adding advanced digital cabin technology.

  • Standard Features: 13.4-inch diagonal center touchscreen and 12.3-inch diagonal digital Driver Information Center; Traction Select System with Tow/Haul mode; 17-inch machined aluminum wheels.
  • Available Features: Up to 13 camera views, including transparent trailer view; MultiPro Tailgate and MultiPro Tailgate Audio System by Kicker®; X31 off-road package with twin-tube Rancho® shocks and skid plates.

GMC Sierra 2500 HD SLT

Step up to the SLT trim to infuse your daily driving routine with elevated cabin comfort and automated trailering assists.

  • Standard Features: 10-way power driver and front outboard passenger heated seats with lumbar; Heated steering wheel; ProGrade® Trailering System with In-Vehicle Trailering App; 18-inch machined aluminum wheels with dark gray metallic accents.
  • Available Features: 10-way power-adjustable front heated and ventilated bucket seats with perforated leather appointments; MultiPro Tailgate and MultiPro Tailgate Audio System by Kicker®.

GMC Sierra 2500 HD AT4

Engineered for the adventurous driver, the AT4 trim delivers premium trail-ready mechanics alongside a bold, athletic design profile.

  • Standard Features: Exclusive Jet Black interior with Kalahari accents, and heated and ventilated perforated front leather seating surfaces; Exclusive 20-inch gloss-black aluminum wheels with available BFGoodrich® off-road tires; Off-Road Suspension Package with twin-tube Rancho shocks and skid plates; Up to 14 available camera views with HD Surround Vision; Adaptive Cruise Control with trailering.
  • Available Features: 15-inch diagonal Head-Up Display with off-road inclinometer.

GMC Sierra 2500 HD AT4X

The AT4X pushes the boundaries of heavy-duty overlanding, bringing extreme hardware to master the most unforgiving off-road terrains.

  • Standard Features: Factory-installed 1.5-inch suspension lift, Multimatic DSSV dampers, rear electronic-locking differential, larger steel transfer case skid plate, and front aluminum skid plate; 35-inch Goodyear Territory MT tires; 16-way heated and ventilated power front seats with massage feature; Obsidian Rush interior featuring full-grain leather seating with technical-grain leather accents and authentic Vanta ash wood.
  • Available Features: AT4X AEV Edition featuring stamped steel bumpers, steering gear, and transfer case skid plates, and 18-inch Salta gloss-black wheels; Duramax® 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission.

GMC Sierra 2500 HD Denali

The iconic Denali trim seamlessly blends iconic luxury styling and high-end craftsmanship with legendary professional-grade capabilities.

  • Standard Features: 20-inch Ultra-Bright machined aluminum wheels with bright chrome inserts; Denali-exclusive authentic wood, patterned aluminum trim, and Forge perforated leather seating surfaces; 12-way heated and ventilated power front seats.
  • Available Features: Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission; Power sunroof; Rear Camera Mirror.

GMC Sierra 2500 HD Denali Ultimate

As the ultimate expression of the GMC lineup, this flagship trim includes premium features as standard for an unmatched luxury experience.

  • Standard Features: Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission; Signature Vader Chrome grille and exclusive 20-inch Ultra-Bright machined aluminum wheels with gloss-black inserts; Exclusive Alpine Umber interior featuring full-grain leather seating, authentic Paldao wood, and 16-way power front seats with massage feature; 12-Speaker Bose Premium Series with Centerpoint surround sound; Illuminated power assist steps and MultiPro Tailgate Audio System by KICKER®.
  • Available Features: Auxiliary trailer camera.

Test-Drive a New GMC Sierra 2500 Model at Liberty GMC Today

Are you ready to test-drive the high-end GMC Sierra 2500 Denali Ultimate or find out which capability package fits your workflow best? Our professional sales staff is standing by to help find your ideal heavy-duty match. Before making the trip out to our showroom, you can seamlessly value your trade-in online using our secure Instant Cash Offer tool. For additional information regarding our lineup, browse our detailed online manufacturer research. Our dedicated finance department also invites you to safely apply for financing from home to save time at the dealership. For personalized questions or to lock in your priority showroom appointment, call %%phone_sales%% or contact us online today to drive home in a premium new truck from our premier GMC dealership in Peoria!

 

More from Liberty GMC

  • 2026 GMC Acadia Trim Levels

      The GMC Acadia features the latest in entertainment technology and high-performance capabilities to help you get around Phoenix effortlessly. Take a look at the highlight features of the GMC Acadia configurations and available packages below to get a sense of which configuration you’d love to park in your garage. When you’re ready to take…

  • 2026 GMC Sierra 2500 HD Interior

      It’s impossible to miss a GMC Sierra 2500 when you see it driving around Phoenix, but what does this powerful pickup truck look like on the inside? Get a closer look at the interior features and amenities of the latest model with our guide below. In it, we cover interior color options, accessories, and…

  • 2026 GMC Sierra 1500 Exterior

      If you drive a GMC Sierra 1500, then it’s important to know how high it sits off the ground, how wide it is, and its other exterior dimensions. That’s why we’ve put together all of the exterior measurements of the latest model below. See how much space you’ll have on the roads of Phoenix,…


Posted in:

Related Posts

2026 GMC Sierra 2500 HD

2026 GMC Sierra 2500 HD Interior

It's impossible to miss a GMC Sierra 2500 when you see it driving around Phoenix, but what does this powerful pickup truck look like on the inside? Get a closer look at the interior features and amenities of the latest model with our guide below. In it, we cover interior color options, accessories, and more. We invite you to review our guide before scheduling a test drive of any model at our dealership! View Inventory Contact Us 2026 GMC Sierra 2500 HD Interior Colors The 2026 model has plenty of color options and seating materials to help you create the perfect mood for every drive. Here are the interior colors and seat covers for the GMC Sierra 2500 HD: Jet Black, Cloth seat trim Jet Black, Cloth seat trim (slightly different pattern) Jet Black, Vinyl seat trim Jet Black, Perforated Leather-appointed front outboard seating positions Jet Black, Forge Perforated Leather seat trim Jet Black with Kalahari accents, Perforated Front Leather seat trim Dark Walnut/Slate, Cloth seat trim Dark Walnut/Slate, Perforated Leather-appointed front outboard seating positions Atmosphere/Brownstone, Forge Perforated Leather seat trim Obsidian Rush, Full Grain Leather seat trim Alpine Umber, Full Grain Leather seat trim Use our vehicle finder tool to narrow your search and find your GMC Sierra 2500 HD by color and seating material. 2026 GMC Sierra 2500 HD Interior Dimensions The dimensions of the latest GMC Sierra 2500 HD will vary depending on the body style and configuration you choose. We've listed its interior dimensions for you to view: Head Room (1st/2nd Row): 39.88–43.03 inches/40.12 inches Leg Room (1st/2nd Row): 44.53 inches/43.4 inches Cargo Volume: 69.5–83.5 cubic feet Seating Capacity: 3–6 passengers 2026 GMC Sierra 2500 HD Interior Accessories Whether you want to give the interior a slight upgrade or make it more durable and weather-resistant, you can choose from a wide variety of interior accessories. Here are some of the GMC Sierra 2500 interior accessories that can make every drive around Tempe even more enjoyable: Front rubberized-vinyl floor mats Inside rearview auto-dimming mirror Carpeted floor covering All-weather floor liners Rear window defogger Universal Vehicle Module And more! To get a closer look inside the cabin and get all of your additional questions answered, schedule a test drive of the GMC Sierra 2500 at our dealership in Peoria. Step Inside The GMC Sierra 2500 HD At Liberty GMC! See what the GMC Sierra 2500 HD looks like up close when you make the drive to our dealership from Glendale. We have plenty of vehicles for you to test-drive, and our new vehicle specials can help you save significantly on the model of your choice! More from Liberty GMC 2026 GMC Acadia Trim Levels The GMC Acadia features the latest in entertainment technology and high-performance capabilities to help you get around Phoenix effortlessly. Take a look at the highlight features of the GMC Acadia configurations and available packages below to get a sense of which configuration you’d love to park in your garage. When you’re ready to take… Read More 2026 GMC Sierra 1500 Exterior If you drive a GMC Sierra 1500, then it’s important to know how high it sits off the ground, how wide it is, and its other exterior dimensions. That’s why we’ve put together all of the exterior measurements of the latest model below. See how much space you’ll have on the roads of Phoenix,… Read More

2026 GMC Acadia Trim

2026 GMC Acadia Trim Levels

The GMC Acadia features the latest in entertainment technology and high-performance capabilities to help you get around Phoenix effortlessly. Take a look at the highlight features of the GMC Acadia configurations and available packages below to get a sense of which configuration you'd love to park in your garage. When you're ready to take your favorite configuration for a test drive, visit our dealership at your earliest convenience. View Inventory Value Your Trade GMC Acadia Configurations & Highlights There are four GMC Acadia trim levels for 2026, and each configuration has three rows of seating and a high-powered engine under the hood. The specific features you'll be able to use on every drive around Tempe will vary depending on which trim level you choose. Here are the highlights of the available GMC Acadia configurations: Elevation 328-hp 2.5L turbo engine LED Reflective Windshield Collision Alert Front-wheel drive 8-speed automatic transmission 11-inch diagonal Driver Information Center Hitch View AT4 Many of the same features as the Elevation trim, as well as: Gloss Black roof-mounted side rails High Gloss Black upper door moldings 18-inch all-terrain blackwall tires Available Molded Black flat splash guards Denali Many of the same features as the AT4 trim, as well as: Body-color door handles with chrome strip LED tail lamps, exterior illumination 20-inch all-season blackwall tires Memory settings Denali Ultimate Many of the same features as the AT4 trim, as well as: Exclusive Denali Ultimate interior design Heated and ventilated Woodland Mahogany full-leather massaging front seats with plaited contrast stitching Vader Chrome grille and GMC emblems Bose 16-Speaker Performance Series sound system Panoramic sunroof GMC Acadia Packages Each GMC Acadia features an array of available packages designed to enhance your overall driving experience. Every available package is meant to cater to a different area of driving. Here are the available packages on each GMC Acadia trim level: Elevation Cargo Package Floor Liner Package All-Weather Package Luxury Package Rugged Package Illumination Package Elevation Premium Package Black Edition Super Cruise Package AT4 Super Cruise Package Luxury Package Rugged Package Cargo Package Floor Liner Package All-Weather Package Adventure Package Illumination Package Denali Super Cruise Package Rugged Package Cargo Package Floor Liner Package All-Weather Package Illumination Package Denali Ultimate Rugged Package Cargo Package Floor Liner Package All-Weather Package Illumination Package The best way to see what kinds of features your favorite trim has is to get behind the wheel and get an up-close look. Schedule a test drive of any of our available GMC Acadia trim levels at Liberty GMC! Choose Your GMC Acadia Trim Level In Peoria! Which GMC Acadia trim level will you choose? Make the trip to us from Glendale to explore our inventory, and see about our current new vehicle specials! More from Liberty GMC 2026 GMC Sierra 2500 HD Interior It’s impossible to miss a GMC Sierra 2500 when you see it driving around Phoenix, but what does this powerful pickup truck look like on the inside? Get a closer look at the interior features and amenities of the latest model with our guide below. In it, we cover interior color options, accessories, and… Read More 2026 GMC Sierra 1500 Exterior If you drive a GMC Sierra 1500, then it’s important to know how high it sits off the ground, how wide it is, and its other exterior dimensions. That’s why we’ve put together all of the exterior measurements of the latest model below. See how much space you’ll have on the roads of Phoenix,… Read More

2026 GMC Terrain Interior

2026 GMC Terrain Interior

The GMC Terrain is classified as a compact SUV, but the interior of the GMC Terrain is anything but cramped. The engineers at GM have designed a remarkably roomy cabin for the Terrain, despite its exterior dimensions, which are optimized for parking in tight spaces around Phoenix. Take a moment to learn about more highlights of the Terrain, like the 2026 GMC Terrain cargo space and upholstery options. Once you've read our guide, fill out a pre-approval form and connect with Liberty GMC to schedule a test drive. Our dealership is in Peoria. View Inventory Value Your Trade Interior Of The GMC Terrain: Dimensions The 2026 GMC Terrain comfortably seats five Tempe passengers in its spacious cabin. As you can see by the GMC Terrain interior measurements listed below, each seat is refreshingly roomy. You and your crew will enjoy plenty of stretching space, even in a fully packed cabin. As for the GMC Terrain cargo space, there's more than enough room for larger items like bikes. Key GMC Terrain dimensions include: Seating capacity: 5 Cargo volume (behind first/second): 63.50 / 29.80 cubic feet Headroom (first/second): 40.58 inches / 39.18 inches Shoulder room (first/second): 57.69 inches / 55.7 inches Hip room (first/second): 55.25 inches / 51.0 inches Legroom (first/second): 43.95 inches / 39.7 inches Interior Of The GMC Terrain: Colors & Upholstery Options The GMC Terrain interior can be upholstered in a wide variety of materials with several colors to consider. To start visualizing the cabin of your next Terrain, review available upholstery colors and materials for each trim level below: Elevation (FWD/AWD) After Dark, Premium cloth seat trim Gideon Gray / After Dark, Premium cloth seat trim After Dark, CoreTec seat trim Gideon Gray / After Dark, CoreTec seat trim AT4 Forest Storm w/ Mahogany Accents, Cloth/CoreTec seat trim Denali After Dark, Perforated Leather-appointed seat trim Light Ash Gray/Very Dark Atmosphere, Perforated Leather-appointed seat trim See The GMC Terrain Cargo Space Near Glendale It's difficult to get a sense of how roomy the GMC Terrain dimensions are without seeing the GMC Terrain interior for yourself. Call Liberty GMC at (602) 714-3106 to arrange a test drive or simply swing by our showroom during our business hours. But first, read our informative overviews of the GMC Terrain exterior highlights and engine options. More from Liberty GMC 2026 GMC Acadia Trim Levels The GMC Acadia features the latest in entertainment technology and high-performance capabilities to help you get around Phoenix effortlessly. Take a look at the highlight features of the GMC Acadia configurations and available packages below to get a sense of which configuration you’d love to park in your garage. When you’re ready to take… Read More 2026 GMC Sierra 2500 HD Interior It’s impossible to miss a GMC Sierra 2500 when you see it driving around Phoenix, but what does this powerful pickup truck look like on the inside? Get a closer look at the interior features and amenities of the latest model with our guide below. In it, we cover interior color options, accessories, and… Read More 2026 GMC Sierra 1500 Exterior If you drive a GMC Sierra 1500, then it’s important to know how high it sits off the ground, how wide it is, and its other exterior dimensions. That’s why we’ve put together all of the exterior measurements of the latest model below. See how much space you’ll have on the roads of Phoenix,… Read More