2026 GMC Sierra AT4

Vehicle Details
2026 GMC Sierra 2500 4WD Crew Cab AT4
Exterior: Sterling Metallic — Interior: Jet Black with Kalahari Accents
Engine: Duramax 6.6L Turbo-Diesel V8 — Transmission: 10-Speed Automatic

The 2026 GMC Sierra 2500 AT4 combines advanced off-road capability with premium comfort and technology, built for drivers who demand both rugged strength and refinement. Powered by the legendary Duramax 6.6L Turbo-Diesel engine paired with a smooth-shifting 10-speed automatic transmission, this heavy-duty truck delivers exceptional towing performance, torque, and long-haul reliability.

With its bold Sterling Metallic exterior and signature AT4 styling, including red tow hooks and off-road suspension tuning, the Sierra 2500 AT4 stands out whether it’s on the jobsite or the backroads of Western Kentucky. Inside, Jet Black leather with Kalahari accents sets a premium tone, blending luxury and durability for an exceptional driving experience.

Performance & Capability:

Duramax 6.6L Turbo-Diesel Engine — 10-Speed Automatic Transmission

Auto Locking Rear Differential — 2-Speed Autotrac Transfer Case

Traction Select System with Off-Road & Tow/Haul Modes

Heavy-Duty Air Cleaner — 220-Amp Alternator — Skid Plates

All-Terrain Tires — StabiliTrak with Trailer Sway Control — Hill Start Assist

Digital Variable Steering Assist — Trailer Brake Controller — Vehicle Trailering App

120V Power Outlets (Cabin & Cargo Bed)

Interior Features:

Dual-Zone Automatic Climate Control — 10-Way Power Front Bucket Seats

Heated and Ventilated Front Seats — Heated Rear Outboard Seats

Memory Settings for Driver Seat & Mirrors — Heated, Wrapped Steering Wheel

60/40 Folding Rear Bench with Storage Package — Premium Floor Liners

Technology & Connectivity:

13.4" GMC Premium Infotainment System with Google Built-In

Wireless Apple CarPlay & Android Auto — Bluetooth Compatibility

12.3" Digital Driver Display — Bose Premium Sound System

SiriusXM with Trial Subscription — OnStar Connected Services (8-Year Basic Plan)

Keyless Open & Start — Rear Seat Reminder — Head-Up Display — Rear Camera Mirror

Safety & Driver Assistance:
Forward Collision Alert — Following Distance Indicator — Front Pedestrian Braking — Automatic Emergency Braking — Lane Departure Warning — Intellibeam Auto High Beams — HD Surround Vision — Front & Rear Park Assist — Trailer Side Blind Zone Alert — Safety Alert Seat — Teen Driver Mode — Buckle to Drive

Exterior Highlights:

Power-Folding, Heated, and Auto-Dimming Trailering Mirrors

LED Projector Headlamps with Animated Lighting — LED Fog & Cargo Lights

CornerStep Rear Bumper — Rear Wheelhouse Liners — Spray-On Bedliner

Power Retractable Assist Steps — Power Sunroof — GMC MultiPro Tailgate

Red Front Recovery Hooks — AT4 Signature Design Elements

Packages & Options:

AT4 Premium Plus Package — Preferred Package — Technology Package

Gooseneck/5th Wheel Package with Bed Holes and 7-Pin Harness

Sterling Metallic Paint

GVWR: 11,350 lbs — Rear Axle Ratio: 3.42

Owner Benefits:

3-Year / 36,000-Mile Bumper-to-Bumper Limited Warranty

5-Year / 100,000-Mile Powertrain Limited Warranty

Roadside Assistance & Courtesy Transportation for 5 Years / 100,000 Miles

First Maintenance Visit Included

Why Buy From Country Chevrolet GMC:
At Country Chevrolet GMC in Benton, KY, we take pride in offering a relaxed, no-pressure buying experience backed by real people who care. Every new GMC truck is hand-selected and professionally prepared to deliver performance, reliability, and value. Whether you’re towing, adventuring, or commuting, our team is here to help you find the perfect fit and drive home with confidence.

Equipment
This vehicle's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The leather seats in it are a must for buyers looking for comfort, durability, and style. This 3/4 ton pickup's Lane Departure Warning helps keep you in your lane. The GMC Sierra features a hands-free Bluetooth phone system. Protect this vehicle from unwanted accidents with a cutting edge backup camera system. Apple CarPlay: Seamless smartphone integration for this model - stay connected and entertained on the go! Start this GMC Sierra from inside with remote start. The vehicle offers Android Auto for seamless smartphone integration. Engulf yourself with the crystal clear sound of a BOSE sound system in this vehicle. Keep your hands warm all winter with a heated steering wheel in it . This unit has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. This model shines with an exquisite metallic silver exterior finish.

Additional Information
The Country Chevy Advantage Shopping for a used vehicle for sale in KY, especially at Country Chevrolet GMC, offers several lucrative benefits such as: Affordable Features – It can be difficult to afford the premium features of a brand-new model vehicle. However, with a used car purchase, accessories such as sunroofs, leather upholstery, and top-of-the-line navigation systems become that much more affordable. Variety of Options – Regardless of your preferred make, model, model year, condition, price, or trim, our huge used vehicle inventory gives you a much better chance of finding the vehicle you’re looking for. Slower Depreciation – Worried about your new vehicle depreciating as soon as you drive it off our lot? No worries, when buying a used vehicle from Country Chevy, one of the top GMC dealers in KY, much of the depreciation has already occurred before you even purchase. Affordable Upfront Payment – Used car models tend to have lower starting prices than their newer counterparts, as well as lower sales tax, monthly payments, and down payments.