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The 2026 GMC Sierra 2500 Denali Ultimate 4WD is the absolute pinnacle of heavy-duty luxury and uncompromising capability. Cloaked in striking Onyx Black with an ultra-premium Alpine Umber full-grain leather interior, this heavy-duty titan is powered by the legendary Duramax 6.6L V8 Turbo Diesel engine. Churning out a massive 470 horsepower and a monumental 975 lb-ft of torque through an Allison®-certified 10-speed automatic transmission, it delivers effortless heavy-duty towing alongside top-tier highway refinement.
As a Denali Ultimate, this vehicle represents the maximum expression of GM luxury, heavily optioned with premium utility and functional upgrades:
Alpine Umber Sanctuary: Features authentic open-pore Paldao wood trim, a premium microsuede headliner, and 16-way power-adjustable front massage seats wrapped in full-grain leather.
Next-Gen Tech Suite: Dominated by a massive digital cockpit featuring a 13.4-inch infotainment screen, a 12.3-inch digital driver instrument cluster, and a massive 15-inch multi-colour Head-Up Display (HUD).
Premium Utility Upgrades: Outfitted with power-retractable assist steps with LED perimeter lighting, a factory dealer-installed tri-fold hard tonneau cover, and a Gooseneck/5th Wheel Prep Package with a 3.42 rear axle ratio.
Elite Tailgate Audio: Equipped with the innovative MultiPro Tailgate Audio System by Kicker®, transforming the tailgate into an outdoor entertainment system, alongside a factory spray-on bedliner.
Heavy-Duty Electrical: Built for commercial-grade demands with dual alternators (220-amp primary and 170-amp auxiliary) and a factory high idle switch for reliable power management.
Canadian Road Ready: Completely protected with dealer-installed all-weather floor liners, molded splash guards, and standard wheel locks.
Fusing immense Duramax diesel power, advanced towing tech, and an open-pore wood cabin, this 2026 Sierra 2500 Denali Ultimate stands alone as the ultimate high-impact, luxury workhorse.
120-Volt Instrument Panel Power Outlet 400 watts shared with (KC9) bed mounted power outlet.
2 USB Ports Located on 1st row console.
Radio: AM/FM Stereo with Premium GMC Infotainment System Includes 13.4" diagonal multicolour touch-screen, Google built in apps such as navigation and voice assistance, multi-touch display, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones.
Steering Wheel Audio Controls
Spray-on Pickup Bedliner with GMC Logo Does not include spray-on liner on tailgate due to black composite inner panel.
X31 Off-Road Package Includes twin-tube Rancho shocks.Hill Descent Control Off-Road Suspension Includes twin-tube shocks. Skid Plates Protect the oil pan, front axle and transfer case.
Rear Wheelhouse Liners
Universal Home Remote
Power Front Passenger Windows with Express Up/Down
Sierra HD Pro Safety Automatic Emergency Braking Buckle to Drive Prevents vehicle from being shifted out of park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use. Following Distance Indicator Forward Collision Alert Front Pedestrian Braking IntelliBeam Automatic High Beam on/Off Lane Departure Warning
Full Grain Leather Seat Trim
Technology Package Inside Rearview Auo-Dimming Rear Camera Mirror Includes full camera display. Multicolour 15" Diagonal Head-Up Display
Wheels: 20" Ultra-Bright Machined Aluminum (50.8 cm). Includes gloss black inserts and black painted pockets.
Signature Denali Ultimate Grille in Vadar Chrome Includes high gloss black surround.
LED Smoked Amber Roof Marker Lamps
Power Sliding Rear Window with Defogger
Safety Alert Seat
Floor-Mounted Centre Console Includes cup holders, cell phone storage, power cord management and hanging file folder capability.
Ultrasonic Front and Rear Park Assist
Heated 2nd Row Outboard Seats
LED Cargo Area Lighting Located in cargo bed activated with switch on centre switch bank or key fob.
Unauthorized Entry Theft-Deterrent System
Transmission: 10-Speed Automatic
Wireless Phone Projection For Apple CarPlay and Android Auto.
Trailer Side Blind Zone Alert
Keyless Open and Start Includes remote keyless entry.
OnStar Services Capable See onstar.ca for details and limitations. Services vary by model. Service plan required.
Remote Vehicle Starter System
2 Charge/Data USB Ports Inside Centre Console
Manual Tilt-Wheel/Telescoping Steering Column
Tires: LT275/65R20 AT BW
120-Volt Bed Mounted Power Outlet 400 watts shared with (KI4) instrument panel mounted power outlet.
Rear Cross Traffic Alert
Deep-Tinted Glass
ProGrade Trailering System Hitch Guidance with Hitch View Includes image adjustment and pan/zoom/tilt. in-Vehicle Trailering System App Includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and trailer tire pressure monitor system module. Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitoring sensors are installed.
Trailer Cam Provisions and Trailer Viewing Software
HD Surround Vision Provides the driver with an overhead view of the scene around the vehicle on a centre stack display. Includes front camera washer.
Wireless Charging
Trailer Tire Pressure Monitor Sensors Includes set of 4 sensors. Sensor functionality requires (UET) in-vehicle trailering app to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will nee
* Every reasonable effort is made to ensure the accuracy of the information listed above. Vehicle pricing, incentives, options (including standard equipment), and technical specifications listed is for the 2026GMCSierra 2500HD Denali Ultimate 4x4 Crew Cab 6.75 ft. box may not match the exact vehicle displayed. Please confirm with a sales representative the accuracy of this information.
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Stackable vs Non-Stackable: Stackable incentives are discounts that can be combined with cash, finance and/or lease rates should you qualify for them. Please contact a sales representative for more information.