Turbocharged Diesel V8 for powerful towing | 4x4 drive for superior traction | Snow Plow Prep and Camper Package | Power Locks | Satellite Radio

Introducing the 2026 GMC Sierra 3500HD SLE, a robust and versatile heavy-duty truck designed for those who demand power and capability. This brand new model, equipped with the Snow Plow Prep and Camper Package, is perfect for Canadian drivers who need a reliable partner for both work and play. With its commanding presence and practical four-door design, the Sierra 3500HD is ready to tackle any challenge, whether you're navigating city streets or venturing into the great outdoors.
Under the hood, the Sierra 3500HD boasts a formidable 6.6L Turbocharged Diesel V8 engine, delivering exceptional torque and power for towing and hauling. Paired with a smooth automatic transmission and a 4x4 drive system, this truck ensures superior traction and control in all weather conditions. The diesel engine not only provides impressive performance but also offers efficiency for long-distance drives, making it an ideal choice for Canadian terrains.
Step inside the Sierra 3500HD and experience a cabin designed for comfort and convenience. The spacious interior features bench seating with durable cloth upholstery, perfect for accommodating passengers on long journeys. Modern technology is at your fingertips with the intuitive navigation system and steering wheel audio controls, ensuring you stay connected and entertained. Keyless entry and power windows add to the ease of use, while air conditioning and tilt steering enhance your driving comfort.
Safety is paramount in the Sierra 3500HD, equipped with advanced features to keep you protected on the road. Driver and passenger airbags, along with stability and traction control, provide peace of mind in varying conditions. The lane departure warning system helps you stay on track, while the tow package and privacy glass add practicality and security for everyday use. Daytime running lights ensure visibility, making this truck a reliable companion in diverse Canadian climates.
The 2026 GMC Sierra 3500HD SLE embodies strength and versatility, offering a blend of power, comfort, and safety. Whether you're towing heavy loads or embarking on a weekend adventure, this truck is engineered to meet your needs with confidence and style.
Specifications
- Turbocharged Diesel V8 6.6L engine for powerful towing
- 4x4 drive for superior traction in all conditions
- Snow Plow Prep and Camper Package for added versatility
- Advanced safety features including lane departure warning
- Spacious interior with modern technology and convenience

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Engine: Turbocharged Diesel V8 6.6L/
Safety EquipmentStabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assistAirbags, 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 airbagTeen 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 driverTire Pressure Monitoring System auto learn, includes Tire Fill Alert (does not apply to spare tire)Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching (Deleted with (ZW9) pickup bed delete.)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'sForward 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.)Rear Seat Belt Indicator (Requires Crew Cab or Double Cab model.)Rear Seat Reminder (Requires Crew Cab or Double Cab model.)OnStar Services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)Seat Belt Adjustable Guide Loops, front row only (Included and only available on Crew Cab and Double Cab models. Not available with (ZW9) pickup bed delete.)Daytime Running Lamps LED signature lightingBuckle 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.)HD Rear Vision Camera (Not available with (ZW9) pickup bed delete. Removed with (UV2) HD Surround Vision.)Interior EquipmentFloor covering, colour-keyed carpetingSteering wheel audio controlsExterior Temperature Display located in radio displayCompass, located in instrument clusterWindow, power front, drivers express up/downDoor locks, powerPower outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)Seat trim, ClothCruise control, steering wheel-mountedAir conditioning, single-zoneSeat adjuster, driver 4-way manualSeat adjuster, passenger 4-way manualSeat, rear 60/40 folding bench (folds up), 3-passenger (includes child seat top tether anchor) (Not available with Regular Cab model.)Steering column, Tilt-Wheel, manual with wheel locking security featureWindows, power rear, express down (Not available on Regular Cab models.)Air vents, rear (Not available with Regular Cab model.)Mirror, inside rearview, manual tiltSeats, front 40/20/40 split-bench with covered armrest storage and under-seat storage (lockable)Window, power front, passenger express downUSB Ports, 2, Charge/Data ports located on instrument panelSteering wheel, wrappedDriver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital displayAssist handles, front A-pillar mounted for driver and passenger, rear B-pillar mountedGMC Premium information Display- 13.4" diagonal Multicolour touch screenKeyless Open and Start includes remote keyless entryUSB ports, (2) charge-only, rearFloor mats, rubberized-vinyl front (Included and only available with (B30) colour-keyed carpeting. Deleted when LPO floor liners are ordered.)Floor mats, rubberized-vinyl rear (Requires Crew Cab or Double Cab model. Included and only available with (B30) colour-keyed carpeting. Deleted when LPO floor liners are ordered.)Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet) (Deleted with (ZW9) pickup bed delete.)Exterior EquipmentSingle Rear WheelsCornerStep, rear bumperMouldings, beltline, stainless steelGlass, deep-tintedDoor handles, body-colourBumper, front chrome lowerBumper, rear chrome with bumper CornerStepsTire carrier lock keyed cylinder lock that utilizes same key as ignition and door (Deleted with (ZW9) pickup bed delete.)Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheelTailgate, standard (Deleted with (ZW9) pickup bed delete.)Tailgate and bed rail protection caps, top (Deleted with (ZW9) pickup bed delete.)IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light (Deleted with (ZW9) pickup bed delete.)Bed Step, Black integrated on forward portion of bed on driver and passenger side (Not available with (ZW9) pickup bed delete.)Headlamps, Animated LED projectors, LED turn signals and Daytime Running LampsTaillamps, LED Signature Tail, Incandescent Brake, Turn & Reverse Lamps (Requires single rear wheels.)Wheels, 18" (45.7 cm) machined aluminum wheel with Dark Grey metallic accents (Requires single rear wheels. Included with (RFX) X31 Off-Road and Protection Package.)Tires, LT275/70R18E all-terrain, blackwall (Requires single rear wheels. Included with (RFX) X31 Off-Road and Protection Package.)Tire, spare LT275/70R18 all-terrain, blackwall (Included and only available with (QF6) LT275/70R18E all-terrain, blackwall tires or (QF9) LT275/65R20 all-terrain, blackwall tires with (E63) pickup bed models. Available to order when (ZW9) pickup bed delete and (QF6) LT275/70R18E all-terrain, blackwall tires are ordered.)Mirrors, outside power-adjustable vertical trailering with heated upper glass lower convex mirrors, integrated turn signals, manual folding/extending (extends 3.31" [84.25mm]), BlackCargo tie downs (12), fixed, rated at 500 lbs per cornerGrille, Chrome surround with Chrome insert barsEntertainment EquipmentBluetooth for phone connectivity to vehicle infotainment systemAudio system feature, 6-speaker system (Requires Crew Cab or Double Cab model.)Wireless phone projection for Apple CarPlay and Android AutoAudio 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 SubscriptionSiriusXM 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 EquipmentEngine, 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 monitoringFour wheel driveCooling, external engine oil coolerCooling, auxiliary external transmission oil coolerBattery, 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, integratedFrame, fully-boxed, hydroformed front section and a fully-boxed stamped rear sectionBrakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotorsBrake lining wear indicatorSteering, Recirculating Ball with smart flow power steering systemRear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)Recovery hooks, front, frame-mounted, BlackSuspension Package (Not available with (X31) Off-Road Package.)Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine. Not included with (ZW9) pickup bed delete.)Push Button StartAir filter, heavy-dutyTransfer case, two-speed electronic shift with push button controls (Requires 4WD models.)Auto-locking rear differentialPickup bed includes bed assist step (Deleted when (ZW9) pickup bed delete is ordered.)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.)Transmission, 10-Speed automaticOther EquipmentTrailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance (Deleted when (ZW9) pickup bed delete is ordered.)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 BrakingREAR AXLE 3.42 RATIO,HIGH IDLE SWITCH,ASSIST STEPS CHROMED TUBULAR 6 RECTANGULAR CAB LENGTH (factory installed),TRANSFER CASE TWO-SPEED ACTIVE electronic Autotrac with push button control,SLE PREFERRED EQUIPMENT GROUP includes standard equipment,LICENSE PLATE KIT FRONT,3 YEARS SIRIUSXM,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.),REMOTE START PACKAGE includes (BTV) Remote Start (UTJ) content theft alarm and (C49) rear-window defogger,LPO ALL-WEATHER FLOOR LINER 1ST AND 2ND ROWS (dealer-installed),TRANSMISSION 10-SPEED AUTOMATIC,LED CARGO AREA LIGHTING located in cargo bed activated with switch on centre switch bank or key fob,SLE CONVENIENCE PACKAGE includes (CJ2) dual climate control (A2X) 10-way power driver seat including power lumbar (N37) manual tilt/telescoping steering column and (T3U) LED fog lightsSingle rear wheel models also include (U01) Roof Marker Lamps,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 and includes (KW5) 220-amp alternator,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). (Includes (CGN) Bedliner Spray-on.,GVWR 14 000 LBS. (6350 KG) WITH DUAL REAR WHEELS,SLE HEATED PACKAGE includes (KA1) heated driver and passenger seats (KI3) heated steering wheel,WHEELS 18 (45.7 CM) POLISHED FORGED ALUMINUM,UNIVERSAL VEHICLE MODULE Includes module customer interface harness and instructions. Provides vehicle data over an open CAN network (J1939). 10 switchable inputs/outputs and Custom Configuration Tool to integrate upfit equipment controls. Software features that support Auto Vehicle Start Shutdown Inhibit Fast Idle and Snow Plow,TIRES LT235/80R18 ALL-TERRAIN BLACKWALL,DUAL REAR WHEELS includes LED hip marker lights,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,LPO REAR WHEELHOUSE LINERS (dealer-installed),Four Wheel Drive,Rear Head Air Bag,Telematics,Front Collision Mitigation,Front Collision Warning,Front Side Air Bag,Floor Mats,Automatic Highbeams,Keyless Start,Locking/Limited Slip Differential,Heated Mirrors,Tow Hitch,Passenger Air Bag,Power Windows,ABS,Pass-Through Rear Seat,AM/FM Stereo,Passenger Air Bag Sensor,Power Door Locks,Privacy Glass,Telematics,Running Boards/Side Steps,Driver Air Bag,Daytime Running Lights,Keyless Entry,Automatic Highbeams,Smart Device Integration,Conventional Spare Tire,MP3 Capability,Split Bench Seat,Tires - Rear All-Terrain,Requires Subscription,Bluetooth Connection,Requires Subscription,Bluetooth Connection,Driver Restriction Features,A/C,WiFi Hotspot,Stability Control,Power Mirror(s),Auxiliary Audio Input,Power Steering,Satellite Radio,Auxiliary Audio Input,Front Collision Mitigation,Cloth Seats,Power Windows,Requires Subscription,Front Collision Mitigation,4-Wheel Disc Brakes,Cruise Control,Daytime Running Lights,Tires - Front All-Terrain,Front Collision Warning,Bluetooth Connection,Integrated Turn Signal Mirrors,Lane Departure Warning,Keyless Start,Navigation System,Daytime Running Lights,Lane Departure Warning,Rear Bench Seat,Aluminum Wheels,Adjustable Steering Wheel,Front Head Air Bag,Floor Mats,Requires Subscription,Back-Up Camera,Steering Wheel Audio Controls,Traction Control,Tow Hooks,MP3 Capability,Front Collision Warning,Tire Pressure Monitor,Power Door Locks,Smart Device Integration,LED Headlights