? Heavy-Duty Muscle Meets Refined Control This Certified Sierra 2500 AT4 isn?t built for light work or occasional use. Finished in Volcanic Red Tintcoat, it brings a bold, aggressive presence backed by real capability, sitting strong on 20? Black Aluminum Wheels with the unmistakable stance of the AT4 design. At its core, the 6.6L Duramax Turbo Diesel V8 paired with the Allison 10-Speed Automatic Transmission delivers serious, dependable power. Whether you?re hauling equipment or pulling a heavy load, it responds with smooth, controlled strength. The Integrated Trailer Brake Controller and full Trailering Package give you confidence when the job demands precision, while the AT4?s off-road engineering ensures it stays composed when conditions get rough. Inside, this truck shifts into a different level of comfort. The Black / Kalahari Interior surrounds you with premium materials, while Heated and Ventilated Front Seats and Heated Second Row Seats keep every passenger comfortable in any season. The Heated Steering Wheel and Dual-Zone Automatic Climate Control make long days easier, while the cabin layout feels purposeful and refined at the same time. Technology is built to keep up with the demands of real work. The 13.4? GMC Infotainment System is fast and intuitive, paired with a 15? Head-Up Display that keeps key information right in your line of sight. The Bose Premium Audio System adds clarity and depth, while Wireless Apple CarPlay and Android Auto keep everything connected. With the 360-Degree Camera System and Remote Start System, everyday usability becomes effortless. Confidence comes standard. Blind Zone Steering Assist, Rear Cross Traffic Alert, Lane Departure Warning, Forward Collision Alert, and Front and Rear Park Assist work together to keep awareness high without overwhelming the drive. Out on the road, it carries itself with authority. Moving through Coldwater, Saline, and Dearborn Heights along US-12, I-94, and M-153 across Branch, Washtenaw, and Wayne County, it feels planted and capable. Heading south into Celina, Findlay, and Perrysburg along US-127, I-75, and OH-25 through Mercer, Hancock, and Wood County, it maintains that steady control. Then pushing west toward Decatur, Bluffton, and Fort Wayne along US-27, IN-1, and I-469 through Adams, Wells, and Allen County, it proves that heavy-duty strength doesn?t have to sacrifice refinement. Because Everything We Do Is Driven By You. #GMC #Sierra2500 #SierraAT4 #DuramaxDiesel #HeavyDutyTruck #BuiltForWork #DieselP
