Certified 2024 Gmc Sierra 3500 HD AT4

The 2024 GMC Sierra 3500HD AT4 Crew Cab 4WD in Onyx Black with Jet Black/Kalahari leather interior is a serious heavy-duty truck built for work, adventure, and everything in between. Standout features include Duramax 6.6L Turbo-Diesel V8, Allison 10-speed automatic transmission, AT4 Premium Plus Package, and Gooseneck/5th-wheel prep package — giving you 12,100 lbs of GVWR and exceptional towing capability. You'll also enjoy adaptive cruise control, a multi-color 15 head-up display, spray-on bedliner with AT4 logo, and power sunroof for that added touch of comfort and convenience. Inside, premium touches meet practical function with ventilated and heated front and rear bucket seats, a 13.4” GMC Premium Infotainment System, Bose premium sound, wireless Apple CarPlay and Android Auto, and a 12.3” color driver info center. Dual-zone climate control, remote start, rear camera mirror, and wireless phone charging add to the premium everyday usability. Safety tech is top-tier with HD Surround Vision, automatic emergency braking, trailer side blind zone alert, rear cross traffic alert, front and rear park assist, forward collision alert, and lane departure warning. Exterior features like animated LED headlamps, power retractable assist steps, LED roof marker lamps, and GMC MultiPro tailgate make this Sierra AT4 as smart as it is capable. 18 machined aluminum wheels, red recovery hooks, skid plates, and a 2-speed Autotrac transfer case round out this off-road-ready package.