2020 GMC Sierra 3500HD Denali 4x4 Crew Cab 6.75 ft. box SRW

The 2020 GMC Sierra 3500HD Denali 4WD Crew Cab stands at the peak of heavy-duty luxury and brute capability. Built to dominate the toughest jobs while surrounding you in premium refinement, this Denali delivers relentless diesel power, advanced trailering intelligence, and unmistakable presence,  a truck that works hard and arrives in style. 

Performance & Heavy-Duty Capability 

• Engine: Legendary Duramax® 6.6L V8 Turbo Diesel delivering massive torque and confident, long-haul performance 

• Transmission: Allison® 10-speed automatic engineered for smooth shifting under extreme loads 

• Drivetrain: Autotrac® 4-Wheel Drive with two-speed transfer case for maximum traction on job sites and harsh terrain 

• Rear Axle Ratio: 3.42 for exceptional towing strength and highway stability 

• Exhaust Brake & Heavy-Duty Cooling Systems for controlled descents and sustained towing confidence 

• Off-Road Readiness: Skid plates, hill descent control, and off-road suspension enhance capability beyond the pavement 

Advanced Trailering & Work Technology 

• Integrated trailer brake controller with advanced trailering system 

• Hitch Guidance with Hitch View and Bed View Camera for precise hookups 

• Gooseneck/5th wheel prep package for serious hauling demands 

• Trailer tire pressure monitoring compatibility for added confidence on long pulls 

• LED cargo bed lighting, spray-on bedliner, and rear wheelhouse liners for durable worksite practicality 

Denali Interior Luxury 

• Heated and ventilated front bucket seats with premium leather and Denali-exclusive accents 

• Heated rear outboard seats and heated steering wheel for all-season comfort 

• Dark Walnut / Dark Ash Grey interior trim for a refined, upscale atmosphere 

• Power sliding rear window and rear seat storage package for added versatility 

• Dual-zone automatic climate control and rear air vents to keep every passenger comfortable 

Technology & Connectivity 

• Premium GMC Infotainment System with navigation and intuitive touchscreen interface 

• Bose® premium audio system delivering rich, detailed sound 

• Wireless charging and multiple USB ports plus 120V power outlets in-cabin and in-bed 

• Head-Up Display and reconfigurable driver information centre for key data at a glance 

• Remote start system and keyless open & push-button start for everyday convenience 

Safety & Driver Assistance 

• Forward collision alert with low-speed automatic braking 

• Lane departure warning and lane change alert with side blind zone alert 

• Front and rear park assist with HD surround vision for confident maneuvering 

• Rear cross-traffic alert, following distance indicator, and Teen Driver technology 

Exterior Styling & Utility 

• Exterior Colour: Summit White- clean, bold, and timeless 

• Signature Denali chrome grille, chrome mirror caps, door handles, and recovery hooks 

• 20" polished aluminum wheels paired with aggressive all-terrain tires 

• LED headlamps, fog lamps, roof marker lamps, and cargo lighting for maximum visibility 

• GMC MultiPro™ Tailgate offering multiple configurations for loading, access, and worksite efficiency 

• Chrome assist steps and cornerstep rear bumper for easy entry and bed access 

The Final Word 

Whether you’re towing heavy equipment, conquering demanding terrain, or cruising in comfort, the 2020 GMC Sierra 3500HD Denali delivers uncompromising strength, advanced intelligence, and Denali-level luxury. It’s a heavy-duty truck built for those who demand maximum capability  without sacrificing refinement. 

The 2020 GMC Sierra 3500HD Denali 4WD Crew Cab stands at the peak of heavy-duty luxury and brute capability. Built to dominate the toughest jobs while surrounding you in premium refinement, this Denali delivers relentless diesel power, advanced trailering intelligence, and