This 2021 GMC Sierra 1500 AT4 delivers the capability and refinement you need for work and weekend adventures alike. Finished in clean white with purposeful design elements, this truck combines rugged durability with thoughtful interior appointments that make every drive more comfortable. - Power sunroof for open-air enjoyment - Engine block heater for reliable cold-weather starts - 3.0L I-6 Diesel Turbocharged Duramax engine with 460 lb-ft of torque - 20-inch machined aluminum wheels with carbon grey accents - AT4 Preferred Package with premium features - LT265/60R20 all-terrain tires - Premium GMC Infotainment system with 8-inch touchscreen and navigation - Bose Premium audio system with SiriusXM - Wireless charging capability - Universal home remote - Rear sliding power window - Heated and ventilated front seats with leather trim - 10-way power driver and passenger seats with lumbar support - Apple CarPlay and Android Auto compatibility The Sierra 1500 AT4 is built for serious truck work. Its 3.0L turbocharged diesel engine produces substantial torque for towing and hauling, while the 10-speed automatic transmission provides smooth power delivery across all driving conditions. Whether navigating city streets or tackling rough terrain, this truck responds with confidence. Inside, you'll find technology designed for real-world use. The premium infotainment system keeps you connected with navigation, satellite radio, and smartphone integration. The Bose audio system ensures quality sound through your journey. Heated and ventilated leather seats provide comfort in any season, and wireless charging keeps your devices ready. The AT4 trim distinguishes itself with off-road capability and premium appointments. Red recovery hooks, hill descent control, and an off-road suspension enhance performance on challenging terrain. The integrated trailer brake controller and hitch guidance system make towing straightforward and secure. With 4-wheel drive, electronic stability control, and traction control, this Sierra handles diverse driving conditions without compromise. The truck delivers an estimated 22 city and 26 highway MPG, balancing fuel efficiency with the power you expect from a diesel truck. This is the truck for owners who refuse to compromise between capability and comfort. Contact us to schedule your test drive and discover how the Sierra 1500 AT4 can work for your lifestyle. All prices plus tax, tag, and fees. New prices cannot be combined with special interest rates. Must finance through manufacturer's or dealer's preferred lender for certain rebates and some offers may not be combined. See Dealer for details. Important recall information: so you know, any used vehicle you may be considering may have unrepaired manufacturer's safety recalls. To check the recall status repaired or unrepaired of the specific used vehicle you're interested in purchasing visit www.safercar.gov. Thanks for shopping with us.