2026 GMC Sierra 1500 AT4



In Stock
  • $67,872 FINAL PRICE

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Vehicle Information

VIN: 3GTUUEE89TG414640
Stock #: 260740
Model Code: TK10543
  • Condition New
  • Body Style Crew Cab
  • Exterior Color Sterling Metallic
  • Interior Color Jet Black With Kalahari Accents, Perforated Leather Front Seat Trim
  • Fuel Economy
    City/Highway 22/26 MPG
  • Engine 3.0L Duramax® Turbo Diesel engine
  • Transmission Automatic
  • Fuel Type Diesel Fuel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

Vehicle Details
Take command of every drive in this 2026 GMC Sierra 1500 AT4, a rugged and refined pickup built for drivers who demand capability, comfort, and confidence. Equipped with 4WD and a powerful 6-cylinder, 3.0L Diesel engine, this GMC Sierra AT4 is ready for tough jobs, weekend adventures, and everything in between. From its bold stance to its premium interior, it delivers the performance and presence you expect from a GMC Sierra. Inside, you'll find modern technology designed to keep you connected and in control. Enjoy the convenience of Apple CarPlay, Hands Free Bluetooth®, Remote Start, Steering Wheel Audio Controls, and Adaptive Cruise Control for a smarter, more relaxing driving experience. Whether you're navigating city streets or heading off the beaten path, this truck is built to handle it with ease. The AT4 trim adds a more aggressive look and enhanced off-road capability, making it a standout choice for those who want serious strength with upscale style. If you're searching for a dependable 2026 GMC Sierra 1500 in Stephenville TX, this impressive diesel 4x4 deserves a spot at the top of your list. Visit us in Stephenville TX today and see why the GMC Sierra 1500 AT4 continues to set the standard for power, durability, and everyday versatility. This truck is ready for work, play, and whatever comes next.

Equipment
The vehicle features a hands-free Bluetooth® phone system. Start this unit from inside with remote start. This unit offers Android Auto for seamless smartphone integration. Apple CarPlay: Seamless smartphone integration for this vehicle - stay connected and entertained on the go! The leather seats in it are a must for buyers looking for comfort, durability, and style. This model's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. Protect the vehicle from unwanted accidents with a cutting edge backup camera system. The installed navigation system will keep you on the right path. Keep your hands warm all winter with a heated steering wheel in the GMC Sierra . This vehicle has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. The GMC Sierra stays safely in its lane with Lane Keep Assist. This vehicle features steering wheel audio controls.

Packages
AT4 Premium Package. Technology Package: Multicolor 15" Diagonal Head-Up Display; Bed View Camera; Rear Camera Mirror. Preferred Equipment Group 4SB: Trailer Side Blind Zone Alert; Ultrasonic Front and Rear Park Assist; Trailer Camera Provisions; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Black Chrome Grille Insert Bars; Front Rain-Sensing Wipers; Heavy-Duty Air Filter; Skid Plates; 120-Volt Interior Power Outlet; Heated Driver and Front Outboard Passenger Seating; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Color-Keyed Carpeting Floor Covering; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; Premium Bose 7-Speaker Sound System; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Power Rake and Telescoping Steering Column; Keyless Open and Start; Perimeter Lighting; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System; In-Vehicle Trailering System App; Hill Descent Control; 220 Amp Alternator;

All Features

Technology Package

    AT4 Premium Package


      • DriveType
        • DriveType: Four Wheel Drive
      • Fuel Economy
        • City: 22 MPG
        • Hwy: 26 MPG
        • Combined: 24 MPG
      • Fuel System
        • Fuel System: Direct Injection
      • Fuel Tank Capacity
        • Fuel Tank Capacity: 24 gal
      • Fuel Type
        • Fuel Type: Diesel Fuel
      • Horse Power
        • Horse Power: 305
      • Rear Wheel
        • Rear Wheel: Single
      • Trailering Capacity
        • Trailering Capacity: 8700 lbs

      Warranty

      • Corrosion: 3 Years/36,000 Miles Rust-Through 6 Years/100,000 Miles
      • Roadside Assistance: 5 Years/60,000 Miles Sierra TurbomaxTm Engines, 3.0L & 6.6L Duramax® Turbo-Diesel Engines, And Certain Commercial, Government, And Qualified Fleet Vehicles: 5 Years/100,000 Miles
      • Drivetrain: 5 Years/60,000 Miles Sierra TurbomaxTm Engines, 3.0L & 6.6L Duramax® Turbo-Diesel Engines, And Certain Commercial, Government, And Qualified Fleet Vehicles: 5 Years/100,000 Miles
      • Warranty: <<< Preliminary 2026 Warranty >>>
      • Basic: 3 Years/36,000 Miles
      • Maintenance: First Visit: 12 Months/12,000 Miles
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      May not represent actual vehicle. (Options, colors, trim and body style may vary)