This 2021 GMC Sierra 1500 AT4 Crew Cab combines rugged capability with refined comfort, finished in Satin Steel Metallic and featuring a striking Jet Black interior with Kalahari accents. Powered by a Duramax 3.0L I-6 turbocharged diesel engine delivering 277 horsepower, this four-wheel-drive model is well-equipped for both work and adventure. The interior offers Perforated Leather-Appointed front seats and heated second-row outboard seats, enhancing comfort on every journey. A power sunroof adds natural light and an open-air feel, while the 20-inch machined aluminum wheels complement the truck's bold exterior stance. Tow confidently with the included In-Vehicle Trailering app and Hitch Guidance with Hitch View, supported by a 120-volt bed-mounted power outlet for added convenience. Safety is bolstered by Front Pedestrian Braking, Lane Keep Assist with Lane Departure Warning, Brake Assist, and an HD Rear Vision Camera with Hitch View for precise maneuvering. The head-up display keeps essentials in your line of sight, promoting safer driving. Enjoy entertainment through a premium GMC infotainment system featuring a responsive touchscreen, Bose speakers, Bluetooth audio streaming, external memory controls, and internet radio capability. This Sierra 1500 AT4 offers a balanced blend of advanced technology, safety, and diesel power for a versatile driving experience.