Introducing the formidable 2026 GMC Sierra 2500HD AT4, proudly presented by Joe Cooper Chevrolet GMC Cadillac of Shawnee. This new truck commands attention with its Coastal Dune exterior complemented by a sophisticated Jet Black interior featuring Kalahari accents. Designed for both rugged performance and refined comfort, this vehicle offers a host of premium features that make it a compelling choice for any truck enthusiast. "Who loves ya', Oklahoma?"

Under the hood, the Sierra 2500HD AT4 is powered by the robust Duramax 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission, delivering exceptional power and efficiency for both on and off-road adventures. Its 4WD drivetrain, combined with the X31 Off-Road Package—featuring Hill Descent Control and Off-Road Suspension—ensures that this truck is ready for any terrain, providing both versatility and reliability.

The AT4 trim emphasizes luxury and technology. The AT4 Preferred Package includes practical features like LED Smoked Amber Roof Marker Lamps and a Power Sliding Rear Window with Defogger. Meanwhile, the AT4 Premium Plus Package offers a Power Sunroof and a Black Badging Package that includes Black GMC Emblems and Black Sierra Nameplates, enhancing the vehicle's bold aesthetics.

Inside, the Sierra 2500HD AT4 is a sanctuary of comfort and tech. The Preferred Equipment Group 4SB includes a Bose Premium 7-Speaker Sound System and HD Surround Vision for an elevated driving experience. Wireless Charging and Wireless Phone Projection keep you connected, while the Technology Package, featuring an Inside Rearview Auto-Dimming Camera Mirror and a Multicolor 15" Diagonal Head-Up Display, brings cutting-edge convenience.

Safety is paramount, with features like Automatic Emergency Braking, Lane Departure Warning System, and Rear Cross Traffic Alert, ensuring peace of mind with every journey. Heated and ventilated front seats, along with heated rear seats and a heated steering wheel, underscore the comfort provided by this luxurious truck.

Whether it's the tough jobs or weekend adventures, the 2026 GMC Sierra 2500HD AT4 brings unmatched capability and style. Visit Joe Cooper Chevrolet GMC Cadillac of Shawnee to experience this remarkable truck for yourself. "Who loves ya', Oklahoma?"