Details

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Description

The 2026 GMC Sierra 3500HD Denali 4WD Crew Cab Standard Box combines heavy-duty strength with upscale refinement, delivering serious diesel capability, premium comfort, and advanced towing technology. With its bold Denali presence, Sterling Metallic exterior, and thoroughly equipped cabin, this Sierra HD is built to handle demanding work while surrounding passengers in luxury. 

Performance & Capability 

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

• Transmission: 10-speed automatic transmission for smooth power delivery and optimized performance under load 

• Drivetrain: Four-wheel drive with an AutoTrac two-speed transfer case for dependable traction across changing terrain 

• Rear Axle: 3.42 rear axle ratio engineered for a strong balance of towing performance and drivability 

• Automatic Locking Rear Differential: Helps maximize traction when conditions get challenging 

• Exhaust Brake: Provides additional control and confidence when managing heavy loads on descents 

• Hill Descent Control: Helps maintain controlled speed over steep or uneven terrain 

• Off-Road Suspension & Skid Plates: Added capability for rough roads, job sites, trails, and challenging terrain 

• Heavy-Duty Cooling: Engine and transmission oil coolers help maintain performance during demanding towing and hauling 

• 220-Amp Alternator: Provides robust electrical capacity for demanding truck accessories and equipment 

Towing & Work-Ready Capability 

• Heavy-Duty Trailering Equipment: Purpose-built for serious towing with integrated trailer-focused technology 

• Trailer Brake Controller: Helps provide controlled braking when towing a trailer 

• Hitch Guidance & Hitch View: Makes lining up with the trailer easier and more precise 

• Gooseneck/5th-Wheel Prep: Factory preparation for heavy-duty trailer applications 

• Trailer Camera Provisions & Bed View Camera: Improved visibility around the trailer and cargo area 

• Trailer Side Blind Zone Alert: Helps monitor areas alongside the truck and trailer 

• Trailering App: Provides useful towing information and trailer-focused functionality 

• MultiPro Tailgate: Versatile design for easier loading, access, and cargo management 

• Power Lock & Release Tailgate: Convenient operation at the press of a button 

• Spray-On Bedliner: Durable protection for the pickup bed 

• 120V Bed-Mounted Power Outlet: Convenient power source for tools and equipment 

Luxury & Interior Comfort 

• Heated & Ventilated Front Seats: Keeps the driver and front passenger comfortable through changing seasons 

• Heated Second-Row Outboard Seats: Adds first-class comfort for rear passengers 

• Heated Steering Wheel: Warm, comfortable grip during cold-weather drives 

• Power Driver & Front Passenger Seats: Easy adjustment for personalized comfort 

• Driver Memory Settings: Conveniently recalls preferred seat and mirror positions 

• Power Sliding Rear Window: Adds ventilation and versatility to the Crew Cab 

• Dual-Zone Automatic Climate Control: Maintains individualized cabin temperatures 

• Power Sunroof: Brings additional light and an open-air feel to the premium cabin 

• Rear Seat Storage Package: Adds practical organization for passengers and gear 

• Premium Jet Black Interior: Sophisticated styling throughout the Denali cabin 

Technology & Connectivity 

• 13.4 Premium GMC Infotainment System: Large touchscreen interface with Google built-in functionality 

• 12 Reconfigurable Digital Driver Display: Keeps important vehicle and trip information directly in view 

• Head-Up Display: Projects key driving information into the drivers line of sight 

• Wireless Phone Projection: Convenient smartphone connectivity without the clutter of cables 

• Wireless Charging: Keeps compatible devices powered while on the move 

• Bose Premium Audio System: Delivers rich, immersive sound throughout the cabin 

• USB Charging Ports: Convenient connectivity for front and rear passengers 

• Wi-Fi Hotspot Capability: Helps keep occupants connected on the road 

• Universal Home Remote: Conveniently operates compatible garage doors and home systems 

Safety & Driver Assistance 

• GMC Pro Safety Features: Designed to provide added awareness and confidence behind the wheel 

• Forward Collision Alert & Automatic Emergency Braking: Helps detect potential frontal hazards and assist with collision avoidance 

• Front Pedestrian Braking: Adds awareness when pedestrians are detected ahead 

• Lane Departure Warning & Following Distance Indicator: Helps promote safer highway driving habits 

• Rear Cross Traffic Alert: Provides additional awareness when backing out of parking spaces 

• Front & Rear Park Assist: Makes maneuvering this large HD truck easier 

• HD Surround Vision: Provides enhanced visibility around the truck when parking or maneuvering 

• Driver Safety Alert Seat: Provides intuitive seat-based alerts for certain detected hazards 

• Rear Camera Mirror: Expands rearward visibility when conditions call for it 

• Teen Driver Mode & Buckle-to-Drive: Added tools for encouraging responsible driving 

Exterior Styling & Utility 

• Sterling Metallic Exterior: A refined, modern finish that complements the Denalis commanding profile 

• 20 Machined Aluminum Wheels: Premium wheels paired with LT275/65R20 all-terrain tires 

• Denali Styling: Signature upscale details give this heavy-duty pickup a distinctive road presence 

• Chrome Mirror Caps & Door Handles: Add polished contrast to the exterior 

• Chrome Recovery Hooks: Functional hardware with a premium appearance 

• LED Headlamps & Fog Lamps: Bright, modern lighting for improved nighttime visibility 

• LED Roof Marker Lamps: Reinforce the trucks heavy-duty character 

• Chrome Assist Steps: Provide convenient entry into the elevated Crew Cab 

• Rear Wheelhouse Liners: Added protection and finished appearance around the rear wheel wells 

Whether its hauling equipment, pulling a fifth-wheel, tackling rough terrain, or cruising the highway, the 2026 GMC Sierra 3500HD Denali brings together Duramax diesel muscle, advanced towing technology, premium Denali comfort, and unmistakable HD presence. Its a sophisticated heavy-duty truck engineered to work hard without sacrificing the luxury and technology expected from a top-tier pickup. 

 

AMVIC Licensed Dealer *Every reasonable effort is made to ensure the accuracy of the information shown. The Standard Equipment listed is provided at the time of the manufacture and may not match the exact vehicle displayed. Please confirm with a sales representative the accuracy of this information.

Safety Equipment

• StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
• Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag
• Front and Rear Park Assist, ultrasonic
• Rear Cross Traffic Alert
• Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behaviour. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
• Rear Seat Reminder
• Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
• Safety Alert Seat
• Trailer Side Blind Zone Alert
• Tire Pressure Monitoring System auto learn, includes Tire Fill Alert (does not apply to spare tire)
• Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
• Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
• Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
• LED Signature DRL's
• 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.
• Trailer Camera Provisions and trailer viewing software
• Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
• Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
• Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
• Seat Belt Adjustable Guide Loops, front row only
• Rear Seat Belt Indicator (Requires Crew Cab or Double Cab model.)
• OnStar Services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)
• Daytime Running Lamps LED signature lighting
• Hill Descent Control (Not available with dual rear wheels.)
• Bed View Camera camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen, includes Two Trailer Camera Provisions
• 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 (Included and only available with (PDI) Sierra HD Pro Safety)
• OnStar Basics (OnStar Fleet Basics for Fleet) Drive more confidently with up to 8 years of core OnStar services including mobile app commands, connectivity for select apps that provide in-vehicle voice assistance and navigation with real-time traffic, and Automatic Crash Response. (Requires (UE1) OnStar. OnStar Basics includes access to remote commands through your vehicle's mobile app (compatible smartphone required); Automatic Crash Response (not all vehicles may transmit all crash data; OnStar links to emergency services); and wireless connectivity for select apps that provide in-vehicle voice assistance and navigation with real-time traffic (Voice & Maps apps are subject to change at any time and may be provided by third parties). Term begins from date of vehicle delivery. Paid subscription required after expiry. Services are dependent on compatible wireless networks provided by third-party wireless service providers, working vehicle electrical systems, GPS signal and other factors outside GM control. Changes in technology and wireless networks may limit or prevent the operation of certain services. For customers who also separately receive or purchase a Premium Plan or Vehicle Data Plan to use Wi-Fi Hotspot and In-Vehicle Apps, the data provided as part of that plan will also be used by any Voice & Maps apps which already had data connectivity under this Basics plan; if any applicable data caps are reached, Voice & Maps apps will continue to function for the duration of this Basics plan but additional vehicle data plan(s) must be purchased to use Wi-Fi Hotspot and In-Vehicle Apps. Services, connectivity, and capabilities have additional terms and limitations and are subject to change, and will vary by model, vehicle configuration, conditions, and geographical and technical restrictions. Non-refundable and no cash value. See onstar.ca for details.)

Interior Equipment

• Seating, heated driver and front outboard passenger
• Seats, ventilated driver and front passenger
• Seats, heated second row outboard seats
• Driver memory, recalls driver "presets" for power driver seat and outside mirrors
• Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
• Floor covering, colour-keyed carpeting
• Steering wheel, heated
• Steering wheel audio controls
• Exterior Temperature Display located in radio display
• Compass, located in instrument cluster
• Window, power front, drivers express up/down
• Window, power front, passenger express up/down
• Windows, power rear, express down
• Door locks, power
• Remote vehicle starter system
• Universal Home Remote
• Theft-deterrent system, unauthorized entry
• Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
• Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
• Defogger, rear-window electric
• Mirror, inside rearview auto-dimming
• Air conditioning, dual-zone automatic climate control
• Steering column, manual Tilt-Wheel and telescoping
• Adaptive Cruise Control
• Steering wheel, wrapped
• Wireless Charging
• USB Ports, 2 (first row) located on console
• Air vents, rear
• Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
• Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
• Seats, front bucket with centre console
• GMC Premium information Display- 13.4" diagonal Multicolour touch screen
• Keyless Open and Start includes remote keyless entry
• USB ports, (2) charge-only, rear
• Seat trim, Forge Perforated Leather seating surfaces
• Seat adjuster, driver 12-way power including lumbar
• Seat adjuster, passenger 12-way power including lumbar
• Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models includes full-length bench seat, seatback storage on left and right side, centre fold out armrest with 2 cupholders, full cab width underseat storage, (includes child seat top tether anchor)
• Floor mats, carpeted front (Unique premium carpet. Deleted when LPO floor liners are ordered or (BKF) Premium Floor Liners are ordered.)
• Floor mats, carpeted rear (Unique premium carpet. Deleted when LPO floor liners are ordered or (BKF) Premium Floor Liners are ordered.)
• In-Vehicle Trailering App System, 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 monitor sensors are installed.)
• USB ports, 2, Charge/Data ports located inside centre console

Exterior Equipment

• Tire, spare LT275/70R18 all-terrain, blackwall (Included and only available with (QF9) LT275/65R20 all-terrain, blackwall tires on single rear wheel models.)
• Single Rear Wheels
• Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
• CornerStep, rear bumper
• Mouldings, beltline, stainless steel
• Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger) lower convex mirrors, turn signal indicators, puddle lamps, perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm])
• Mirror caps, chrome
• Glass, deep-tinted
• Window, power, rear sliding with rear defogger
• Door handles, chrome
• Tailgate and bed rail protection caps, top
• Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
• Wipers, front rain-sensing
• Fog lamps, LED
• Bed Step, Black integrated on forward portion of bed on driver and passenger side
• Bumper, front, body-colour lower
• Bumper, rear body-colour with bumper CornerSteps
• IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
• LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
• Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
• Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
• Headlamps, Animated LED projectors, LED turn signals and Daytime Running Lamps
• Wheels, 20" (50.8 cm) Ultra-bright machined wheels with bright chrome inserts with Black painted pockets (Requires single rear wheels.)
• Tires, LT275/65R20 all-terrain, blackwall (Requires single rear wheels.)
• Assist steps, chromed tubular, 6" rectangular cab length (factory installed) (Not available with (BRS) power-retractable assist steps with LED perimeter lighting.)
• Wheelhouse liners, rear (Not available with dual rear wheel models.)
• Lamps, Smoked Amber roof marker, (LED) (Standard with dual rear wheels.)
• LPO, Polished exhaust tip (dealer-installed) (Requires (L8T) 6.6L V8 gas engine. Not included with (L5P) Duramax 6.6L Turbo Diesel V8 engine.)
• Tailgate, GMC MultiPro Tailgate with six functional load/access features. NOTE: Auto release can be disabled if ball hitch is installed. See Owner's manual for details
• Cargo tie downs (12), fixed, rated at 500 lbs per corner
• Grille, Signature Chrome Denali grille
• Bedliner, Spray-on Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel)

Entertainment Equipment

• Bose Sound System, premium 7-speaker system with Richbass woofer
• Bluetooth for phone connectivity to vehicle infotainment system
• Wireless phone projection for Apple CarPlay and Android Auto
• Audio System, 13.4" diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance, includes colour touch-screen, multi-touch display, AM/FM stereo, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones.
• Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
• SiriusXM Trial Subscription
• SiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (IMPORTANT: The SiriusXM trial subscription is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. Certain features and/or content may not be available unless an active data connection is enabled in the vehicle. Content varies by SiriusXM subscription plan. Features and display may vary by vehicle. All SiriusXM services require a subscription, sold separately by SiriusXM after the trial period. Your SiriusXM service will automatically stop at the end of your trial unless you decide to subscribe. If you decide to continue service after your trial, the subscription plan you choose will continue for an indeterminate term and you will be charged according to your chosen payment method at the then-current rates unless and until you cancel. Taxes apply. Please see the SiriusXM Customer Agreement at siriusxm.ca/terms for complete terms and how to cancel, which includes calling SiriusXM at 1-888-539-7474. All rates, content, and programming are subject to change. SiriusXM uses personal information in accordance with SiriusXM Privacy Policy, available at siriusxm.ca/privacy. SiriusXM Canada Inc. "SiriusXM", the SiriusXM logo, channel names and logos are trademarks of Sirius XM Radio Inc. and are used under license.)

Mechanical Equipment

• Engine, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline (401 hp [299 kW] @ 5200 rpm, 464 lb-ft of torque [629 N-m] @ 4000 rpm)
• Air filtration monitoring
• Transfer case, two-speed active electronic Autotrac with push button control
• Four wheel drive
• Cooling, external engine oil cooler
• Cooling, auxiliary external transmission oil cooler
• Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
• Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
• Trailer brake controller, integrated
• Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
• Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
• Brake lining wear indicator
• Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
• Pickup bed includes bed assist step
• Push Button Start
• Air filter, heavy-duty
• Auto-locking rear differential
• Skid Plates protect the oil pan, front axle and transfer case
• Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
• GVWR, 11,550 lbs. (5239 kg) with single rear wheels (Included and only available with TK30743 model and (L8T) 6.6L V8 gas engine. Requires single rear wheels.)
• Recovery hooks, front, Chrome (Plant installed.)
• Suspension, Off-Road includes twin-tube shocks (Not available with dual rear wheels.)
• Steering, Digital Variable Steering Assist This system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
• Transmission, 10-Speed automatic

Other Equipment

• Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
• Sierra HD Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UFL) Lane Departure Warning, (T8Z) Buckle to Drive and (UHY) Automatic Emergency Braking
• ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
• X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks (Not available with dual rear wheels.)