This used 2025 GMC Sierra 3500HD Denali Ultimate pairs a commanding Onyx Black exterior with a refined Alpine Umber cabin. With 26,620 miles, a four-door Crew Cab body, 4WD, and a 6.6L Duramax V8 turbodiesel matched to a 10-speed automatic transmission, it’s equipped for demanding work and confident travel.

The Denali Ultimate cabin brings premium comfort and thoughtful convenience, including full-grain leather seating, genuine wood accents, and a power sunroof. The 16-way power driver and front passenger seats offer adjustment and lumbar support, while memory settings help personalize the driver’s seat.

Comfort and convenience highlights include:
• Heated and ventilated front seats, heated rear outboard seats, and a heated steering wheel
• Keyless Open & Start, push-button start, and remote vehicle start
• Power sliding rear window with defogger
• Wireless phone projection and wireless charging
• Dual-zone automatic climate control
• All-weather floor liners

Stay connected and informed with the GMC Premium 13.4-inch infotainment display, a multicolor 15-inch diagonal head-up display, and a Bose Premium Series 12-speaker sound system. SiriusXM with 360L and steering-wheel audio controls add more ways to enjoy the drive. 📱

Trailering and utility features include:
• Gooseneck/5th Wheel Prep Package and Hitch Package
• ProGrade Trailering System and in-vehicle Trailering App
• Hitch Guidance with Hitch View
• Bed View Camera with provisions for trailer cameras
• Trailer Side Blind Zone Alert and trailer tire-pressure monitor sensors
• Spray-on bedliner, rear-wheelhouse liners, and LED cargo-area lighting
• 120-volt power outlets in the bed and instrument panel

Driver-assistance and visibility features include HD Surround Vision, front and rear park assist, rear cross-traffic alert, Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, and a Safety Alert Seat. Rain-sensing wipers, IntelliBeam automatic high beams, and the camera-equipped rearview mirror provide added visibility support.

The X31 Off-Road Package adds an off-road suspension and Hill Descent Control. Other equipment includes a two-speed active transfer case, dual batteries, dual alternators, a block heater, and a high-idle switch. Contact Jeff Wyler Florence Buick GMC for current vehicle details and availability.