Used 2025 GMC Sierra 3500HD Denali Ultimate

The 2025 GMC Sierra 3500HD Denali Ultimate redefines what a heavy-duty truck can be; combining relentless diesel power, cutting-edge trailering technology, and first-class luxury. With its commanding presence, exclusive Denali Ultimate interior, and advanced capability, this truck is built for those who demand the absolute best in both strength and sophistication.  

Performance & Capability 

• Engine: 6.6L Duramax® V8 Turbo-Diesel delivering immense torque and heavy-duty performance  

• Transmission: Allison® 10-speed automatic for seamless, heavy-load shifting and durability  

• Drivetrain: Autotrac® 4-Wheel Drive (4WD) for confident control in all terrains and conditions  

• Axle Ratio: 3.42 rear axle engineered for maximum towing strength and efficiency  

• Exhaust Brake System enhancing control and stability when towing downhill  

• Suspension: Off-road tuned suspension with skid plates for durability on rugged terrain  

• Trailering Technology: Integrated trailer brake controller, Hitch View, trailer camera provisions, and advanced in-vehicle trailering app  

• Trailer Tire Pressure Monitoring System for real-time towing awareness  

• Digital Variable Steering Assist for precise handling under load  

Winter & Weather Comfort 

• Heated & Ventilated Front Seats with massaging function for ultimate comfort in all seasons  

• Heated Rear Outboard Seats and Heated Steering Wheel for cold-weather luxury  

• Remote Start System to prepare the cabin before every drive  

• Dual-Zone Automatic Climate Control for personalized comfort  

• Engine Block Heater and Winter Grille Cover for extreme cold-weather reliability  

• Rain-Sensing Wipers and deep-tinted glass for improved visibility and comfort  

Interior Comfort & Convenience 

• Denali Ultimate Interior with premium full-grain leather, authentic wood accents, and Alpine Umber finish  

• Power Front Seats with memory, lumbar, bolster adjustment, and massage functionality  

• Power Sunroof creating an open, upscale cabin atmosphere  

• Power Sliding Rear Window and rear seat storage package for added practicality  

• Wireless Charging Pad and multiple USB/120V outlets throughout the cabin  

• Keyless Open & Push-Button Start for effortless access  

• 13.4" GMC Premium Infotainment Touchscreen with Google Built-In and Navigation  

• 12" Digital Driver Display and Head-Up Display for intuitive driver information  

• Bose® Premium Audio System delivering rich, concert-quality sound  

• Rear Camera Mirror for an unobstructed, high-definition rear view  

Safety & Driver Assistance 

• GMC Pro Safety suite designed for enhanced confidence on every drive  

• Forward Collision Alert with Automatic Emergency Braking  

• Lane Departure Warning and Lane Keep Assist  

• Adaptive Cruise Control for stress-free highway driving  

• HD Surround Vision and Bed View Camera for complete visibility when maneuvering or trailering  

• Front & Rear Park Assist and Following Distance Indicator  

• Trailer Side Blind Zone Alert for safer lane changes while towing  

• Rear Cross Traffic Alert and Front Pedestrian Braking for added awareness  

• Teen Driver Mode and Buckle-to-Drive for enhanced safety monitoring  

Exterior Styling & Utility 

• 20" Machined Aluminum Wheels paired with all-terrain tires for a bold, capable stance  

• Exterior Colour: White Frost Tricoat — premium, striking, and unmistakably upscale 

• Signature Denali Ultimate Vader Chrome grille and distinctive badging  

• LED Headlamps, Fog Lamps, Cargo Lighting, and Roof Marker Lamps for maximum visibility  

• GMC MultiPro Tailgate with six-function versatility and integrated Kicker audio system  

• Spray-On Bedliner and 120V Bed-Mounted Outlet for worksite functionality  

• Power-Retractable Assist Steps with LED perimeter lighting for easy entry  

• Heated, power-adjustable trailering mirrors with integrated lighting  

• Chrome Recovery Hooks and CornerSteps for added utility and confidence  

Whether you’re hauling heavy equipment, towing with confidence, or enjoying a refined daily drive, the 2025 GMC Sierra 3500HD Denali Ultimate delivers unmatched capability, premium craftsmanship, and advanced innovation. It’s the pinnacle of heavy-duty luxury; built for those who refuse to compromise.