2026 GMC Sierra 3500HD Denali

Built for serious work and ready for Atlantic Canada roads, the 2026 GMC Sierra brings heavy-duty capability, bold style, and confident 4x4 traction to every drive. Finished in Black with a Black interior, this full-size truck pairs a strong 6.6 L engine with an automatic transmission for smooth, capable performance in Dartmouth and beyond.

At Steele Chevrolet Buick GMC in Dartmouth, this 2026 GMC Sierra stands out with its tough stance and purpose-built design. The black-on-black look gives this truck a clean, professional presence, while four-wheel drive adds the traction needed for job sites, winter travel, and towing duties. It is a smart choice for drivers who want strength, space, and everyday usability.

TRUCK FEATURES
Strong 6.6 L truck engine
Four-wheel drive for added traction
Automatic transmission for smooth operation
Full-size pickup built for hard work

ADVANCED SAFETY FEATURES
Four-wheel drive supports stable road grip
Large truck design aids visibility
Strong chassis built for demanding tasks
Confident control in changing conditions

PERFORMANCE AND EFFICIENCY
6.6 L engine delivers strong output
Automatic shifting helps smooth acceleration
Built for hauling and heavy-duty use
Four-wheel drive handles rough terrain

COMFORT AND CONVENIENCE
Spacious cabin for daily truck duties
Easy entry into a full-size cab
Practical layout supports long workdays
Black interior offers a clean look

TECHNOLOGY AND CONNECTIVITY
Driver-focused controls within easy reach
Clear instrument view for key data
Modern truck cabin design and function
Automatic transmission supports easy driving

CARGO SPACE
Pickup bed suited for job materials
Large truck format supports big loads
Useful space for tools and gear
Built to manage demanding cargo

The 2026 GMC Sierra is well known for delivering the kind of strength truck buyers expect from a heavy-duty pickup. With its 6.6 L engine, it is designed to handle demanding tasks with confidence. Whether your day includes trailering, carrying equipment, or travelling through changing weather, this GMC Sierra is prepared to get it done.

Its automatic transmission helps make power delivery smooth and controlled. That makes this truck easier to drive in traffic, on the highway, or while moving through busy work areas. The four-wheel drive system is a major advantage in Nova Scotia, especially when roads are wet, snowy, or uneven. It adds confidence when traction matters most.

Inside, the Black interior keeps the cabin looking clean and functional. The layout is made to support daily use, with a practical feel that suits both work and personal driving. Full-size truck space also helps make longer trips more comfortable, giving occupants room to settle in and enjoy the drive.

On the outside, the Black finish gives the 2026 GMC Sierra a bold and professional appearance. It looks right at home at a job site, in a driveway, or parked outside the office. This is a truck with a strong visual presence, but it is equally focused on real capability and day-to-day usefulness.

For drivers shopping at Steele Chevrolet Buick GMC in Dartmouth, this 2026 GMC Sierra offers the core features that matter most: a powerful 6.6 L engine, automatic transmission, four-wheel drive, and the utility of a full-size pickup. It is built for people who need a truck that works hard, drives with confidence, and looks sharp doing it.

WHAT OTHER OWNERS LIKE
Strong engine for heavy-duty tasks
Confident four-wheel drive capability
Smooth automatic transmission performance
Spacious cabin and useful truck bed

This 2026 GMC Sierra's VIN is: 1GT4UWEYXTF359123.

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Engine: Turbocharged Diesel V8 6.6L/
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, 11,700 lbs. (5307 kg) with single rear wheels (Included and only available with model TK30943 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.)
TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolour 15 Diagonal Head-Up Display,TRANSMISSION 10-SPEED AUTOMATIC,DENALI PREFERRED EQUIPMENT GROUP includes standard equipment,GOOSENECK / 5TH WHEEL PREP PACKAGE -- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).,ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.),GVWR 14 000 LBS. (6350 KG) WITH DUAL REAR WHEELS,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 need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories,SNOW PLOW PREP/CAMPER PACKAGE includes (KW5) 220-amp alternator includes increased front GAWR on Heavy Duty models (NZZ) skid plates (transfer case and oil pan) pass through dash grommet hole and roof emergency light provisions. Contact GM Upfitter Integration at www.gmupfitter.com for plow installation details and assistance. Note: if ordered for Camper usage recommend ordering (UY2) Trailering wiring provisions (Includes (KW5) 220-amp alternator,DUAL REAR WHEELS includes LED hip marker lights,UPFITTER SWITCH KIT (5) Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter at customer expense. Installation instructions and technical assistance available at www.gmupfitter.com.,LPO REAR WHEELHOUSE LINERS (dealer-installed),SUNROOF POWER,REAR AXLE 3.42 RATIO