Summary*** Clean CarFax!! *** 4WD *** LEATHER *** Heated Steering Wheel *** Heated Front and Rear Seats *** Ventilated Front Seats *** Powered Sunroof *** Bose Premium Sound System *** Tonneau Cover *** Mulit-Flex Tailgate *** Automatic Climate Control *** Remote Start *** *** AT4 Premium Package *** Preferred Equipment Group 4SB *** AT4 Preferred Package ***The 2025 GMC Sierra 1500 AT4 is a rugged yet refined full-size pickup designed for drivers who want serious off-road capability without sacrificing everyday comfort and technology. Built with a factory 2-inch suspension lift, off-road-tuned components, skid plates, and standard four-wheel drive, the AT4 is ready to handle tough terrain with confidence while still delivering a smooth and composed ride on the road. It comes equipped with a powerful 3.0L Duramax turbo-diesel engine producing 305 horsepower and an impressive 495 lb-ft of torque, paired with a 10-speed automatic transmission, with an available 6.2L V8 offering up to 420 horsepower for even greater performance. Inside, the AT4 features a premium interior with leather-appointed seating, heated and ventilated front seats, and a driver-focused layout highlighted by a large 13.4-inch touchscreen infotainment system with wireless Apple CarPlay and Android Auto. With its bold styling, advanced trail-ready capability, strong towing power, and upscale features, the 2025 GMC Sierra 1500 AT4 is a versatile truck built to handle both rugged adventures and everyday driving with ease.Vehicle DetailsExperience commanding performance and refined capability with this 2025 GMC Sierra 1500 AT4, now available in Mukwonago, WI. With only 16,975 miles, this low-mileage pickup pairs a robust 6.2L V8 gasoline engine with 4WD to deliver confident towing, hauling, and on-road presence. The AT4 package brings off-road-ready tuning and a sophisticated interior, blending rugged capability with creature comforts.Inside, enjoy modern convenience and connectivity through Apple CarPlay, a heated steering wheel for colder Wisconsin mornings, and remote start for climate-conditioned departures. Safety and driver assistance are strengthened by Lane Departure Warning and Adaptive Cruise Control, helping maintain lane position and highway speeds with greater ease and confidence.This GMC Sierra 1500 AT4 features a carefully maintained exterior and a premium cabin designed for long trips or daily duties. The suspension and drivetrain are engineered to handle rough terrain while providing composed handling on pavement. Practical storage solutions and durable materials make it ideal for work or weekend adventures.Located in Mukwonago, WI, this 2025 GMC Sierra 1500 AT4 offers a compelling mix of power, technology, and low mileage for buyers seeking a capable, feature-rich pickup. Contact us to arrange a test drive and see how this GMC Sierra meets your performance and comfort needs.PackagesAT4 Premium Package. Preferred Equipment Group 4SB: Trailer Side Blind Zone Alert; Perforated Leather Front Seat Trim; 3.23 Rear Axle Ratio; Ultrasonic Front and Rear Park Assist; Trailer Camera Provisions; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Black Chrome Header and Grille Insert Bars; Front Rain-Sensing Wipers; Heavy-Duty Air Filter; Skid Plates; 120-Volt Interior Power Outlet; Wireless Charging; Front Bucket Seats; Front Premium Floor Liners with Re