2022 GMC Sierra 3500HD AT4 Onyx Black We are a family owned store and have been servicing Northern California since 1954. 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather. 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel Recent Arrival!The 2022 GMC Sierra 3500HD AT4 is a heavy-duty pickup truck designed for off-road capability while maintaining the power and utility expected from a workhorse truck. The AT4 trim combines rugged performance with luxury features to create a well-rounded option for those who need both functionality and comfort. Here's an overview of the key features: Performance: Engine Options: 6.6L V8 Gas Engine: Produces 401 horsepower and 464 lb-ft of torque. It is paired with a 6-speed automatic transmission, providing robust power for most tasks. 6.6L Duramax Turbo-Diesel V8 Engine: Offers 445 horsepower and 910 lb-ft of torque. This engine is paired with a 10-speed Allison automatic transmission, making it ideal for heavy towing and hauling needs. Towing and Payload Capacities: With the diesel engine, the 2022 Sierra 3500HD AT4 can tow up to 21,130 pounds when properly equipped, while the gas engine allows for a towing capacity of up to 16,800 pounds. The maximum payload capacity for the AT4 trim is approximately 4,398 pounds, making it suitable for carrying heavy loads. Off-Road Capability: The AT4 trim is designed with off-road capabilities in mind, featuring a 2-inch factory suspension lift for improved ground clearance, off-road-tuned Rancho shocks, and a skid plate to protect the undercarriage. Selectable 4WD Modes: Includes an Off-Road mode that adjusts the trucks performance for rough terrain. Exterior: Design: The AT4 trim has a distinctive appearance with a bold grille design featuring black chrome accents, body-color bumpers, and signature AT4 badging. The truck also comes with black vertical recovery hooks for added utility. Wheels and Tires: Equipped with 18-inch machined aluminum wheels with all-terrain tires. Optional 20-inch wheels are also available for a more aggressive stance. Lighting: Features LED headlamps, taillamps, fog lamps, and signature daytime running lights, enhancing visibility and style. Interior: Seating and Comfort: The interior of the AT4 trim is designed for both comfort and utility, featuring leather-appointed seating with Kalahari accents, heated and ventilated front seats, and a heated steering wheel. Technology: Comes standard with the GMC Infotainment System, which includes an 8-inch touchscreen display, Apple CarPlay, Android Auto, a premium Bose audio system, and available built-in navigation. Wireless charging and multiple USB ports are also included for added convenience. Safety and Driver Assistance: Standard Safety Features: Includes a rearview camera, forward collision alert, lane departure warning, and front and rear park assist. Available Features: Additional safety options include the HD Surround Vision camera system, Rear Cross Traffic Alert, and Lane Change Alert with Side Blind Zone Alert. Utility and Bed Features: MultiPro Tailgate: The AT4 comes with the innovative GMC MultiPro tailgate, which offers six different configurations for enhanced loading, unloading, and bed access. Bed Options: Available with multiple bed lengths, including Standard Bed (6'9") and Long Bed (8'), depending on the cab configuration. Durabed: The truck bed is designed with high-strength steel and includes features like LED lighting, 12 fixed tie-downs, and an available spray-on bedliner. Summary: The 2022 GMC Sierra 3500HD AT4 is a versatile heavy-duty pickup truck that blends off-road capability with luxury and advanced technology. With its powerful engine options, impressive towing and payload capacities, rugged off-road features, and a well-appointed interior, the Sierra 3500HD AT4 is an excellent choice for those who need a capable truck for both work and adventur