2023 GMC Sierra 2500 HD AT4

This 2023 GMC Sierra 2500HD AT4 Crew Cab combines rugged capability with refined comfort in a striking Summit White exterior and Jet Black with Kalahari accents interior. Powered by a 6.6L Duramax V8 turbo diesel engine delivering 445 horsepower, it features an Allison 10-speed automatic transmission designed for smooth and efficient towing and heavy-duty performance. Inside, the cabin offers perforated leather-appointed front seats with 10-way power driver adjustment and lumbar support, providing both durability and comfort on demanding drives. The Sierra includes advanced technology such as a Wi-Fi hotspot capability, a touchscreen primary display with voice-activated audio controls, Bluetooth wireless streaming, and internet radio access, keeping you connected wherever the road takes you. Safety is prioritized with an HD rear vision camera featuring hitch guidance, a pickup box camera, brake assist, and Teen Driver restricted driving mode along with stolen vehicle assistance and vehicle slowdown functions. The included In-Vehicle Trailering System app and hill descent control enhance control and confidence during towing or off-road conditions. Additional features include 18-inch machined aluminum wheels with LT275/70R18 mud-terrain tires, front bucket seats, and a suite of convenience and safety technologies that make the 2023 Sierra 2500HD AT4 a dependable, well-equipped choice for serious truck owners.