This 2021 GMC Sierra 1500 AT4 is a rugged and capable truck that's ready to take on any adventure. Boasting a powerful 3.0L I6 Duramax diesel engine paired with a smooth-shifting 10-speed automatic transmission, this Sierra AT4 delivers impressive performance and efficiency, with an EPA-estimated 22 MPG city and 26 MPG highway. Key features include: - Bluetooth connectivity - Rear backup camera - Power sunroof - Bose premium audio system - Navigation system - Wireless charging - Heated and ventilated front seats - Adaptive cruise control - Surround-view camera system - Bed-mounted 120V power outlet The Sierra AT4 is engineered for off-road capability with its lifted suspension, all-terrain tires, and locking rear differential. The bold, blacked-out exterior styling and rugged AT4 design cues give this truck a commanding presence on the road or trail. This Sierra 1500 AT4 is a certified pre-owned vehicle, meaning it has been thoroughly inspected and reconditioned to meet rigorous quality standards. You can purchase with confidence, knowing this truck has been meticulously maintained and is ready to provide years of reliable service. Inside, the Sierra's spacious and well-appointed cabin offers premium comfort and convenience. The intuitive infotainment system with Apple CarPlay and Android Auto integration keeps you connected on the go. Advanced safety features like forward collision alert, lane keep assist, and automatic emergency braking provide added peace of mind. Whether you're tackling tough job sites, navigating rugged terrain, or simply looking for a capable and refined daily driver, this 2021 GMC Sierra 1500 AT4 is an exceptional choice. Visit Tera Chevy, GMC today to experience this impressive truck in person. MARKET VALUE PRICING at Tera Chevy, and GMC! Shop, compare and Buy with complete confidence at Tera Chevy GMC. With Market Value Pricing, you'll find our competitive market-based price on every pre-driven vehicle upfront, No games, No hassles, Just Real Prices! For over 56 years, proudly serving the towns of Sandwich, Yorkville, Plano, Somonauk, Oswego, Montgomery, Sugar Grove, Aurora, Sheridan, Ottawa, Dekalb, Naperville, and the surrounding Chicagoland and Midwest Illinois area.