About This GMC Sierra 1500

This 2024 GMC Sierra 1500 AT4 Duramax has 20,400 miles and is finished in Thunderstorm Gray over Jet Black leather with Kalahari accents. Powered by a 3.0-liter turbodiesel inline-six producing 305 horsepower and 495 lb-ft of torque, it is paired with a ten-speed automatic transmission, a dual-range transfer case, and a limited-slip rear differential. The truck was ordered new with the Technology and AT4 Premium packages, as well as an optional power sunroof, MultiPro tailgate, LED fog lights, adaptive cruise control, heated and ventilated front seats, heated rear seats, a Bose premium sound system, and a touchscreen infotainment system with navigation, Android Auto, and Apple CarPlay.
Exterior features include tinted windows, black wheel arch extensions, fixed side steps, a bed-view camera, spray-in bed liner, a receiver hitch, a power-sliding rear window, and a TrailFX tonneau cover. Machined aluminum 20" wheels are wrapped in 275/60 Bridgestone Dueler A/T tires.
Inside, the cabin is trimmed in Jet Black leather with Kalahari accents and includes dual-zone automatic climate control, adaptive cruise control, heated and ventilated front seats with driver memory settings, heated rear outboard seats, a head-up display, and an integrated rearview camera mirror. The leather-wrapped steering wheel is mounted on a power-adjustable column and frames a 12.3 instrument display. Driver-assistance systems include lane-keeping assist, lane departure warning, front pedestrian braking, forward collision warning, and rear cross-traffic alert.
The 3.0-liter turbodiesel inline-six sends power to all four wheels through the dual-range transfer case and limited-slip rear differential. Routine maintenance has been performed, including an oil change and DEF refill in May 2025. This Sierra 1500 AT4 Duramax combines advanced off-road capability with modern technology and comfort features, making it a versatile and capable full-size truck.