This 2021 GMC Sierra 1500 AT4 delivers premium capability and comfort in a versatile crew cab package. With a turbocharged 3.0L diesel engine paired with a 10-speed automatic transmission, this 4WD truck balances power and efficiency while achieving strong fuel economy ratings of 22 city and 26 highway mpg. - Power sunroof - Premium Bose 7-speaker sound system with SiriusXM - Technology Package with GMC Infotainment System and navigation - Diesel engine block heater - Driver Alert Package II - AT4 Value Package with off-road suspension and hill descent control - Heated and ventilated front seats with power adjusters - Advanced safety suite including automatic emergency braking, lane keep assist, and surround vision camera system - Integrated trailer brake controller with hitch guidance - Spray-on bed liner with AT4 logo The Sierra 1500 AT4 is finished in crisp white exterior with a sophisticated jet black leather interior accented in Kalahari tones. This truck encompasses the right blend of rugged capability and refined amenities. We invite you to experience this impressive Sierra in person and discover why it's the right choice for your next truck purchase.