2025 GMC Sierra 2500

This 2025 GMC Sierra 2500HD AT4X is a powerful and versatile pickup ready to tackle heavy-duty tasks with style. With just under 28,300 miles, this used truck offers a robust 6.6-liter Turbo Diesel V8 engine producing 470 horsepower and 975 lb-ft of torque, paired with an Allison 10-speed automatic transmission. Its Thunderstorm Gray exterior complements a luxurious black interior, providing a striking yet refined look. Equipped with a comprehensive suite of features, including adaptive cruise control, Apple CarPlay, a backup camera, blind spot monitor, Bluetooth, collision warning, cross traffic alert, head-up display, heated seats, keyless entry, leather seats, memory seats, navigation, premium audio, push start, rear heated seats, satellite radio readiness, sunroof/moonroof, tow package, Wi-Fi hotspot, and wireless phone charging, this truck delivers comfort and connectivity for both work and leisure. The truck has been enhanced with premium options like a 220 Amp Alternator, AEV Edition upgrades featuring 18-inch Salta Black gloss aluminum wheels, heavy-duty skid plates, gloss-black bumpers, AEV floor liners, and front head restraints. Additional features include cargo tie-down rings, an engine block heater, Gooseneck/5th Wheel Prep Package, High Idle Switch, and a limited Sport Pedal Kit. Its Thunderstorm Gray paint adds a sleek look, making it a commanding presence on the road or job site. 2025 GMC Sierra 2500HD Safety and Security Features This truck offers essential safety features such as a rear seat reminder and a trailer rearview camera system, enhancing driver awareness. Parking sensors at the front and rear help with maneuvering in tight spaces, complemented by four-wheel ABS for stability. Power door locks include anti-lockout and auto-locking functions for security, while a front camera system washer maintains clear visibility. The programmable safety key provides added security, and hill descent assist supports off-road driving, making this vehicle well-equipped for various driving conditions. 2025 GMC Sierra 2500HD Entertainment and Technology Features Inside, the Sierra 2500HD boasts a 13.4-inch infotainment touchscreen with Google Built-In, offering seamless connectivity and navigation. Compatibility with myGMC Connected Access and Amazon Alexa enhances smart device integration. The audio system includes 11 speakers and a subwoofer, providing rich sound, while voice-operated radio and hands-free calling keep you connected safely. Features like engine start and cabin preconditioning via the app add convenience, making this truck as tech-savvy as it is capable. 2025 GMC Sierra 2500HD Performance Features This heavy-duty truck features an electronic hi-lo 4WD selector and part-time 4WD with on-demand setting, allowing drivers to adapt to changing terrain. A rear locking differential enhances traction in tough conditions, supported by a tuned off-road suspension for stability. The block heater ensures reliable starting in cold weather, making this Sierra 2500HD ready for any challenge. 1-OWNER 2025 GMC SIERRA 2500 HD AT4-X Duramax Diesel with rare $9,390 AEV PACKAGE, ORIGINAL WINDOW STICKER WAS $105,660! Don't get confused, this isn't a normal AT-4 and this is hard-to-find Thunder Storm Gray, which has been discontinued!  Please call Reds Auto and Truck at 303-726-5520. We are a proud member of CUDL and have access to many Credit unions at great rates. We are an A+ Rated Business with the BBB, Winners of the 2019 & 2020 CIADA Quality Dealer Of The Year Award, and have excellent online reviews. We have been in business since 1974. Meet us and see why. We offer clear, low upfront prices and also have no hidden dealer handling or documentation fees! Our vehicles undergo a multi-point inspection and reconditioning process, and most vehicles come with a 3-month 3,000-mile limited warranty. You can always see more photos and other cars at www.redsautoandtruck.com (http://www.redsautoandtruck.com/) or stop by 1451