2025 GMC Sierra 2500

Meet the 2025 GMC Sierra 2500HD AT4, a heavy-duty truck engineered to handle serious work while delivering the premium comfort and technology you demand. This Gray Sterling Metallic example combines rugged capability with thoughtful design, making it an excellent choice for buyers who refuse to compromise on either performance or refinement. - Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque - Max Trailering Package with 3500 HD frame, leaf springs, and gooseneck/5th wheel prep - AT4 Premium Plus Package including power sunroof and technology enhancements - Bose Premium 7-Speaker Sound System with SiriusXM 360L trial subscription - HD Surround Vision with bed view camera and dual trailer camera provisions - Advanced trailering technology including hitch guidance, in-vehicle app, and side blind zone alert - Off-Road High Clearance Step and X31 Off-Road Package - Heated and ventilated front seats with 10-way power adjustment and lumbar support - Dual 220-amp primary and 170-amp auxiliary alternators for demanding electrical loads - Engine block heater and high idle switch for cold-weather reliability - Spray-on pickup bedliner with GMC logo - Wireless charging, keyless open and start with push button ignition This truck arrives as a local trade from a non-smoker, and its 40,000-mile service history reflects meticulous care. The AT4 trim delivers distinctive styling with its gloss black header grille, LED smoked amber roof marker lamps, and premium 20-inch high-gloss black aluminum wheels. Inside, perforated leather appointment and dual-zone climate control create an upscale environment that doesn't sacrifice durability. The Max Trailering Package transforms this into a serious hauling platform, featuring reinforced 3500 HD architecture and gooseneck/5th wheel provisions. Whether you're towing a heavy trailer or managing construction equipment, the integrated trailering system with hitch camera, bed camera, and intelligent guidance keeps you in complete control. The 2-speed active transfer case and off-road suspension ensure you maintain traction whether you're on the highway or navigating challenging terrain. Technology integration enhances daily usability without complication. Apple CarPlay and Android Auto connectivity, wireless phone projection, and a multicolor head-up display keep critical information at your glance. Safety features including automatic emergency braking, lane departure warning, forward collision alert, and ultrasonic park assist provide confidence in any driving condition. OnStar Emergency Communication ensures help is always available. The cab prioritizes both work and comfort. Heated and ventilated front seats with memory functions, a heated steering wheel, and premium floor liners transform long drives into a pleasant experience. The power sunroof adds an open-air feel, while the spray-on bedliner protects your investment in the cargo area. Multiple USB ports, including wireless charging, keep you