2026 GMC Sierra 3500HD Crew Cab Denali Duramax 4x4

Uncompromising Heavy-Duty Luxury

Introducing the 2026 GMC Sierra 3500HD Denali—the ultimate expression of professional-grade capability wrapped in first-class luxury. Now available at our dealership, this heavy-duty powerhouse is engineered for those who need to haul the heaviest loads without sacrificing an ounce of comfort. With the legendary Duramax diesel engine, 4x4 confidence, and Denali's signature refinement, this truck is ready for Canada's toughest jobs .

Duramax Power: Unmatched Heavy-Duty Performance

Under the hood beats the heart of a true workhorse: the Duramax 6.6L Turbo-Diesel V8 engine, delivering a commanding 470 horsepower and a massive 975 lb-ft of torque . This B20-diesel compatible powerhouse provides the grunt you need for the most demanding jobs, from hauling heavy equipment to towing large campers across the province.

The Duramax pairs with a 10-speed automatic Allison transmission, delivering smooth, confident shifts whether you're pulling away from a stoplight or climbing a steep grade with a heavy load . The standard exhaust brake helps improve control when towing, reducing brake wear and providing peace of mind on downhill grades .

Serious Capability: Built to Work

The Sierra 3500HD Denali is engineered for those who demand maximum capability:

• Maximum towing capacity: 20,000 lbs when properly equipped

• Maximum payload: 5,140 lbs—among the best in its class

• 12,100 lbs Gross Vehicle Weight Rating (GVWR)

• Auto-locking rear differential for enhanced traction in slippery conditions

• Integrated trailer brake controller for confident, precise trailer control

• Skid plates protect the oil pan, front axle, and transfer case when the pavement ends

The 4x4 system features a two-speed electronic Autotrac transfer case with push-button control, giving you confidence in everything from muddy job sites to snow-covered highways .

Denali Luxury: First-Class Interior

Step inside the Denali cabin, and you'll discover an environment that rivals premium luxury vehicles. The Crew Cab configuration offers class-leading passenger space, with 44.5 inches of front legroom and 43.4 inches of rear legroom .

Premium amenities include:

• Leather-appointed seating with 16-way power adjustment including lumbar and massage for both front seats

• Heated and ventilated front seats for year-round comfort in any Canadian climate

• Heated second-row outboard seats ensuring passenger comfort on long journeys

• Heated, leather-wrapped steering wheel with power rake and telescoping adjustment

• Dual-zone automatic climate control with individual settings

• Driver memory settings recalling presets for power driver seat and outside mirrors

• Power-retractable assist steps for easy cab access

Technology: The Ultimate Command Centre

The Sierra 3500HD Denali sets new standards for connectivity with its advanced technology suite:

• 13.4-inch diagonal Premium GMC Infotainment System with Google built-in, featuring natural voice assistance and navigation

• 12.3-inch diagonal reconfigurable digital Driver Information Centre displaying key driving data right in your line of sight

• 15-inch multicolour Head-Up Display projecting essential information onto the windshield

• Bose Premium 12-speaker sound system with CenterPoint and AudioPilot for immersive audio

• Wireless Apple CarPlay and Android Auto—no cables required

• Wireless charging pad for compatible devices

• Built-in 5G Wi-Fi Hotspot capable keeping everyone connected

• Rear Camera Mirror—inside rearview auto-dimming with full camera display

• Multiple USB ports throughout the cabin

MultiPro Tailgate with Kicker Sound System

The revolutionary GMC MultiPro Tailgate remains the most innovative tailgate on the market, offering six functional load/access features—from a full-width step to a mobile workstation. This Denial Ultimate even includes a built-in Kicker sound system in the tailgate, transforming your truck into the ultimate tailgate party machine .

In-Vehicle Trailering App: Your Intelligent Towing Partner

For those who tow, the Sierra Denali includes the sophisticated In-Vehicle Trailering App :

• Pre-departure checklist to ensure everything is connected properly

• Trailer maintenance reminders and security alerts

• Real-time trailer mileage tracking

• Electrical diagnostics and Trailer Tire Pressure Monitor System capability

• Trailer Side Blind Zone Alert and Hitch Guidance

• Bed View Camera and Trailer Camera Provisions

Comprehensive Safety: GMC Pro Safety

Your peace of mind is paramount. The Sierra Denali comes equipped with GMC Pro Safety:

• Enhanced Automatic Emergency Braking and Forward Collision Alert

• Front Pedestrian Braking for added urban protection

• Lane Keep Assist with Lane Departure Warning

• Following Distance Indicator and IntelliBeam auto high beams

• Safety Alert Seat that vibrates to warn the driver

• Buckle to Drive encourages seat belt use

Additional safety features include:

• HD Surround Vision with front camera washer

• Front and Rear Park Assist with ultrasonic sensors

• Rear Cross Traffic Braking and Rear Pedestrian Alert

• Rear Seat Reminder to help prevent forgetting children or pets

• Hill Descent Control for steep, off-road descents

Utility Features for Canadian Living

The Sierra Denali is loaded with thoughtful features that make work and life easier:

• Spray-on bedliner for durable cargo protection

• 120-volt power outlet in the bed (400 watts shared with interior outlet)

• LED cargo area lighting with convenient switch or key fob activation

• Capless fuel fill for easy refuelling

• Heavy-duty battery with 730 cold-cranking amps for reliable winter starts

• Engine block heater standard for those frigid Canadian mornings

• Chrome recovery hooks front and rear

The Confidence of OnStar and Warranty Protection

Every new Sierra Denali comes with OnStar Basics included for up to 8 years, providing mobile app commands, connectivity for select apps, navigation with real-time traffic, and Automatic Crash Response .

GMC's comprehensive warranty coverage includes:

• 36 Months / 60,000 km New Vehicle Limited Warranty

• 60 Months / 100,000 km Powertrain Warranty

• 60 Months / 100,000 km Roadside Assistance

• 72 Months / 160,000 km Corrosion Warranty

A Refined Driving Experience

Beyond the specifications, the 2026 Sierra 3500HD Denali delivers a genuinely premium driving experience. The combination of the powerful Duramax diesel and sophisticated 10-speed transmission provides effortless acceleration when you need it and relaxed cruising on the highway. The Digital Variable Steering Assist automatically adjusts steering based on speed and road conditions, reducing driver effort and fatigue on long journeys .

The spacious crew cab, premium materials, and advanced sound insulation create a quiet, serene environment for long hauls across the Canadian landscape.

Experience the Denali Difference

The 2026 GMC Sierra 3500HD Crew Cab Denali SRW Duramax 4x4 is more than just a truck—it's a statement. It's for those who demand the absolute best: uncompromising capability, unmistakable luxury, and the confidence that comes from driving a vehicle engineered to exceed every expectation. With its legendary Duramax power, sophisticated technology, and thoughtful features, it's ready for whatever your work and life demand.

VSA 10374