2026 GMC Sierra 1500 AT4

2026 GMC Sierra 1500 AT4 4WD Onyx Black | Duramax® Turbo-Diesel Power | Premium Off-Road Capability Built for drivers who refuse to compromise between rugged capability and premium refinement, this 2026 GMC Sierra 1500 AT4 4WD is finished in striking Onyx Black and features a luxurious Jet Black leather interior with Kalahari accents. Combining bold AT4 styling, advanced technology, and legendary Duramax® diesel performance, this Sierra is ready for everything from demanding job sites to unforgettable weekend adventures. Powered by the highly respected 3.0L Duramax® Turbo-Diesel Inline-6 paired with a smooth 10-speed automatic transmission and advanced 4WD, this Sierra delivers impressive torque, outstanding towing capability, and remarkable efficiency. Whether you're hauling equipment, towing a trailer, or exploring beyond the pavement, the AT4 is engineered to perform with confidence. Sierra AT4 Highlights Powerful 3.0L Duramax® Turbo-Diesel Inline-6 delivering exceptional torque and efficiency Smooth 10-speed automatic transmission Advanced 4WD system for enhanced traction and off-road confidence Exclusive AT4 package featuring rugged styling and off-road-focused engineering Premium Jet Black leather interior with Kalahari accents Advanced infotainment, connectivity, and driver-assistance technologies Impressive towing capability with refined everyday comfort Bold Onyx Black exterior with commanding GMC presence Factory-engineered capability designed for work, travel, and adventure Why This Sierra AT4 Stands Out Exceptional blend of off-road capability, luxury, and diesel-powered efficiency Premium interior craftsmanship paired with aggressive AT4 styling Outstanding choice for towing, travel, work, and daily driving One of GMC's most desirable and capable full-size truck configurations Built for drivers who want premium comfort without sacrificing truck capability Capability Without Compromise From remote back roads to long highway stretches across West Texas and beyond, the Sierra AT4 delivers the power, confidence, and premium comfort needed to make every journey memorable. At Premier, we're more than just our name. We believe buying a vehicle should be simple, personal, and pressure-free. That's why we take the time to understand your needs and help match you with the right truck for your lifestyle. Schedule your test drive today and discover why the 2026 GMC Sierra 1500 AT4 4WD remains one of the most capable, luxurious, and adventure-ready trucks on the road.

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Truck specifications

Engine

3.0L I6

Transmission

10-Speed Automatic

Drivetrain

4WD

Fuel

Diesel Fuel

Exterior

Black

Interior

Jet Black With Kalahari Accents

Doors

4

Body Style

Truck

City Mpg

21

Highway Mpg

24

Features

• AWD
• Android Auto
• Apple CarPlay
• Backup Camera
• Fog Lights
• Heated Seats
• Keyless Entry
• Lane Departure Warning
• Lane keep assist
• Leather Seats
• Memory Seats
• Navigation System
• Parking Sensors / Assist
• Power Seats
• Premium Package
• Push Start
• Rain Sensing Wipers
• Technology Package
• Tow Package
• Wireless Phone Charging