The 2023 GMC Sierra 3500HD AT4 represents a serious commitment to capable truck ownership, delivering the performance and refinement you need for work or weekend adventures alike. - Duramax 6.6L V8 Turbodiesel engine with 445 hp and 910 lb-ft of torque - Backup Camera and HD Rear Vision Camera - Bluetooth and Wireless Phone Projection - Leather Seats with heated and ventilated front seats - Accident-Free History Report - X31 Off-Road Package with 2-Speed Active Transfer Case and Hill Descent Control - Remote Vehicle Starter System - Spray-On Pickup Bed Liner with AT4 Logo - ProGrade Trailering System with Integrated Trailer Brake Controller - LED Cargo Area Lighting - 120-Volt Bed Mounted Power Outlet and 120-Volt Instrument Panel Power Outlet - Red Recovery Hooks - Electric Rear-Window Defogger - Premium GMC Infotainment System with SiriusXM 360L - OnStar & GMC Connected Services Capable This Sierra 3500HD arrives in Black with a confident stance and the rugged engineering you expect from the Duramax platform. The 10-speed automatic transmission adapts seamlessly to your driving conditions, whether you're navigating city streets or tackling demanding terrain. The AT4 trim distinguishes itself through genuine capability features: the X31 Off-Road Package includes a 2-Speed Active Transfer Case, Hill Descent Control, and an off-road-tuned suspension that handles both pavement and unpaved surfaces. You'll also appreciate the red recovery hooks mounted front and rearâpractical indicators of this truck's intentional design. The interior balances work-truck practicality with genuine comfort. Perforated leather-appointed front seats with heating and ventilation keep you comfortable across seasons. The 4.2-inch color display driver information center, steering wheel audio controls, and intuitive layout minimize distraction while driving. Keyless open and start, power windows with express up and down, and a heated steering wheel address everyday convenience without compromise. This is a truck built for those who need genuine capability. The Duramax engine includes an engine block heater for cold-weather reliability, a 220-amp alternator for sustained power demands, and an exhaust brake that works with the integrated trailer brake controller. The ProGrade Trailering System with hitch guidance, in-vehicle trailering app, and hitch view camera transforms complex towing into a managed task. The spray-on bed liner preserves the truck bed while the 120-volt bed-mounted and instrument panel outlets power your tool
