This one-owner, accident-free 2025 GMC Sierra 1500 Denali Ultimate 4WD in commanding Onyx Black represents the pinnacle of luxury and heavy-duty capability in a full-size truck. Powered by the refined, torquey 3.0L Duramax Turbo-Diesel I6 engine paired with a silky 10-speed automatic transmission and advanced 4WD, it delivers exceptional power, efficiency, and towing prowess with an auto-locking rear differential, hill descent control, heavy-duty air filter, and complete Trailering Package including integrated trailer brake controller, hitch guidance with hitch view, in-vehicle trailering app, trailer side blind zone alert, and more. Fully serviced and in pristine condition, it comes with a fresh Pennsylvania state inspection and a fresh oil changeready to perform at the highest level from day one.The Denali Ultimate trim exudes unparalleled sophistication with a high-gloss black header and signature Denali grille, stunning 22" 7-spoke ultra-bright machined wheels (with wheel locks included), chrome recovery hooks, spray-on bedliner with GMC logo, LED cargo area lighting, power sunroof, power sliding rear window with defogger, MultiPro tailgate with Kicker audio system, and deep-tinted glass for privacy and style.Inside, the cabin is a true masterpiece in Alpine Umber leather with genuine wood console and dashboard inserts, ventilated and heated front seats, heated second-row outboard seats, power rake/telescoping steering column, multicolor 15" diagonal heads-up display, memory settings, Bose Premium Series 12-speaker audio, wireless Apple CarPlay/Android Auto, wireless charging, navigation system, HD Surround Vision, front rain-sensing wipers, ultrasonic front/rear park assist, rear cross traffic braking, rear pedestrian detection, perimeter lighting, keyless open/start, remote vehicle starter, theft deterrent system, and Wi-Fi hotspot capability. If you're ready for the most refined Sierra ever built in a striking Onyx Black finish, this Denali Ultimate is the top choicecome experience true luxury and schedule your test drive today!3.9sFast