2026 GMC Sierra 2500 Trim Levels

Key Takeaways
- The 2026 GMC Sierra 2500 lineup features seven distinct trims ranging from the hardworking Pro to the ultra-luxurious Denali Ultimate.
- Both gas and diesel engine options are paired with an Allison® 10-speed automatic transmission for enhanced towing and payload capabilities.
- Advanced trailering tech and premium interior materials make upgrading to a heavy-duty truck a seamless and comfortable experience.
When your towing and hauling needs surpass the capabilities of the light-duty GMC Sierra 1500, it’s time to step up to a 2026 GMC Sierra HD truck. The GMC Sierra 2500 HD is the first model in the heavy-duty lineup, offering numerous trims that combine raw power with premium features. Explore the 2026 GMC Sierra 2500 trim levels with Gunn Buick GMC below to find the best match for your work and adventures in San Antonio!
2026 GMC Sierra 2500 Models: Highlights
Each 2026 GMC Sierra 2500 trim level offers unique features that make driving in Schertz and Cibolo even safer and more enjoyable. Check out what you can expect from the GMC Sierra 2500 models:
Pro
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
SLE
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
SLT
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®
AT4
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
AT4X
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
Denali
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
Denali Ultimate
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:
What are the trim levels for the 2026 GMC Sierra 2500?
The 2026 GMC Sierra 2500 is available in seven distinct trim levels: Pro, SLE, SLT, AT4, AT4X, Denali, and Denali Ultimate. Whether you need an entry-level work truck or a premium off-road hauler, there is a trim perfectly tailored to fit your towing and payload requirements.
Explore The 2026 GMC Sierra 2500 Trim Levels In Selma
The skilled finance professionals at Gunn Buick GMC are ready to help you purchase your preferred GMC Sierra 2500 model! Contact us to schedule a test drive and start planning your heavy-duty truck upgrade today. We can’t wait to see you drive off our lot in a rugged truck with all the features and capabilities you want.