At4X Preferred Equipment Group, Obsidian Rush Full Grain Leather Seat Trim, Gooseneck / 5th Wheel Prep Package, Adaptive Cruise Control, Heated and Cooled Front Seats, Premium Sound System, Android Auto and Apple CarPlay. * AT4X Trim Level: The AT4X trim of the 2026 GMC Sierra 2500HD is designed for those who demand rugged off-road capability combined with premium features. This trim stands out with its At4X Preferred Equipment Group, which includes exclusive leather seat trim and advanced off-road technologies. * Gooseneck / 5th Wheel Prep Package: This package makes towing a breeze, providing a hitch platform with tray to accept a gooseneck or 5th wheel hitch, complete with a bed-mounted 7-pin trailer harness for easy connectivity. * Adaptive Cruise Control: Enjoy a more comfortable drive with adaptive cruise control, which automatically adjusts your speed to maintain a safe distance from the vehicle ahead. * Premium Sound System: Experience high-quality audio entertainment with the vehicle's premium sound system, making every journey more enjoyable. * Heated and Cooled Front Seats: Stay comfortable in any weather with heated and cooled front seats, ensuring the perfect temperature all year round. * Android Auto and Apple CarPlay: Stay connected on the go with Android Auto and Apple CarPlay, allowing seamless integration of your smartphone for navigation, music, and more. * Location: Dauphin Dean Cooley GM has been serving the Parkland area since 1995, and we are proud to have contributed to the area's automotive needs for almost three decades. Specializing in Chevrolet, Buick, and GMC vehicles, along with certified pre-owned options, we take pride in matching you with the perfect vehicle to suit your needs. Our in-house financial experts are dedicated to simplifying the financing and leasing process, offering personalized solutions. At the heart of our operation lies our service department, complete with a cutting-edge collision and glass center. Here, we service all makes and models with meticulous precision and care. We also have a comprehensive parts department, stocked with essential parts, accessories, and tires all conveniently located under one roof. Visit us today at 1600 Main Street South in Dauphin and experience a new standard in the automotive industry.