This 2021 GMC Sierra 1500 AT4 Crew Cab delivers premium capability and refined comfort in a powerful diesel package. With a 3.0L turbocharged diesel I6 engine paired with a 10-speed automatic transmission and 4WD, this truck combines efficiency with impressive EPA-estimated 22 city / 26 highway MPG. Actual mileage may vary. The jet black exterior and distinctive Kalahari accents throughout its leather cabin create an upscale presence, while the AT4 trim brings purposeful off-road engineering and premium amenities designed for serious truck owners.- Power Sunroof- Heated and Ventilated Front Seats- Premium Bose 7-Speaker Sound System- Apple CarPlay and Android Auto Integration- HD Surround Vision with Trailer View Cameras- Multicolor 15 Head-Up Display- Automatic Emergency Braking and Lane Keep Assist- Spray-On Pickup Bed Liner with AT4 Logo- ProGrade Trailering System with Integrated Trailer Brake Controller- Remote Vehicle Starter System and Keyless StartThis truck's driver-focused technology and safety suite work together to enhance every journey. The AT4 Value Package and Technology Package deliver heated steering wheel, wireless charging, adaptive cruise control, and multiple camera systems for confident driving in any condition. Built with heavy-duty construction including auto-locking rear differential, off-road suspension, and hill descent control, this Sierra is equipped for both daily driving and weekend adventures. Visit us today to experience the commanding capability and refined interior that make this AT4 the ideal choice for drivers who demand premium features with truck-tough performance.