2026 GMC Sierra 2500 Trim Levels

February 10th, 2026 by

2026 GMC Sierra 2500 HD towing in grass

The GMC Sierra 2500 is an HD truck offering the towing power and overall performance that drivers throughout Torrance and the surrounding areas crave. If you are ready to upgrade your pickup truck, learn about the 2026 GMC Sierra 2500 trim levels with Santa Monica GMC today. Whether the GMC Sierra 2500 highest trim option interests you—or any other configuration—count on our team in Santa Monica to assist you. Contact Santa Monica GMC with your questions and to schedule a test drive!

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What Are the Key Highlights of the 2026 GMC Sierra 2500 Models?

The key highlights of the 2026 GMC Sierra 2500 models include unique standard and available features across every trim level designed to make driving in Sherman Oaks and Glendale 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:

  • Auxiliary trailer camera

What Are the Frequently Asked Questions About the 2026 GMC Sierra 2500?

Frequently asked questions about the 2026 GMC Sierra 2500 cover standard engine specs, off-road capabilities, and top-tier luxury features across the trim lineup.

What engine comes standard on the 2026 GMC Sierra 2500 Pro?
The 2026 GMC Sierra 2500 Pro comes standard with a 6.6L V8 gas engine with a 10-speed automatic transmission.

Which 2026 GMC Sierra 2500 trim includes a factory-installed suspension lift?
The 2026 GMC Sierra 2500 AT4X comes standard with a factory-installed 1.5-inch suspension lift, Multimatic DSSV dampers, and a rear electronic-locking differential.

What features come standard on the top-tier 2026 GMC Sierra 2500 Denali Ultimate?
The 2026 GMC Sierra 2500 Denali Ultimate comes standard with a Duramax 6.6L Turbo-Diesel V8 engine, Vader Chrome grille, Alpine Umber interior with 16-way power front seats with massage, 12-Speaker Bose Premium Series audio, illuminated power assist steps, and a MultiPro Tailgate Audio System by KICKER®.

Where Can You Test-Drive a 2026 GMC Sierra 2500 Model?

You can test-drive a 2026 GMC Sierra 2500 model at Santa Monica GMC by calling (424) 220-8820 or messaging us online today. Whether you are ready to test-drive the highest GMC Sierra 2500 trim or another configuration, our team in Santa Monica is here to assist. In the meantime, be sure to apply for financing online and get a trade-in estimate for your current vehicle. Don’t forget to check out our new vehicle specials as well.

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