2026 GMC Sierra 2500 Trim Levels

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, Inc. 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, Inc. 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 Auto™ 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, Inc. 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 (602) 714-3106 or contact us online today to drive home in a premium new truck from our premier GMC dealership in Peoria!