Under the hood sits GMC’s high-output 6.6L Duramax Turbo-Diesel V8 engine, unleashing a massive 470 horsepower and a relentless 975 lb-ft of low-end torque. It skips underpowered gas alternatives, pairing heavy-duty diesel grunt with a proven Allison 10-speed automatic transmission calibrated for effortless towing and maximum torque delivery right off the line. Built on a high-strength heavy-duty steel frame with a factory 2-inch suspension lift, Rancho twin-tube shocks, and skid plates, it conquers rugged trail obstacles, heavy payloads, and massive trailer pulls with complete ease. Equipped with an Autotrac 2-speed transfer case with automatic 4WD and an Eaton G80 heavy-duty locking rear differential, it dynamically channels power across deep Muskoka snowbanks, icy morning launches, and unplowed cottage roads. * 6.6L Duramax Turbo-Diesel V8: High-output engine generating 470 hp and 975 lb-ft of torque for confident passing power and serious heavy-duty towing capacity. * Allison 10-Speed Automatic: Legendary multi-gear transmission designed to optimize tow/haul shift points, engine braking efficiency, and highway range. * Factory AT4 Off-Road Suspension: Engineered with a 2-inch factory suspension lift, off-road Rancho shocks, heavy-duty skid plates, and red front recovery hooks. * Autotrac 2-Speed 4x4 & G80 Locker: Features Auto 4WD, 4-High, 4-Low, and an Eaton G80 automatic locking rear differential to lock down unyielding winter traction. * Executive AT4 Cabin Luxuries: Premium Jet Black leather seating with Kalahari accent stitching, multi-stage heated and ventilated (cooled) front seats, heated rear seats, and a heated steering wheel. * Modern Widescreen Digital Cockpit: Features a 13.4-inch central touchscreen with Google Built-In navigation, wireless Apple CarPlay, wireless Android Auto, and a 12.3-inch digital driver information display. * MultiPro™ 6-Function Tailgate: World's first 6-position GMC MultiPro™ tailgate with integrated bed side steps, 120V bed outlet, and durable spray-on bedliner. * GMC Pro Safety & Towing Tech: Outfitted with HD Surround Vision, Bed View Camera, Trailer Side Blind Zone Alert, Adaptive Cruise Control, and Automatic Emergency Braking.We offer flexible financing and lease solutions for all credit types. Use our APPLY NOW button to check your approval today, or call Drive Credit Canada for assistance. Every listing includes a Carfax report—just ask!

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Engine: 8 Cylinder Engine
Safety EquipmentAirbags, 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 airbagFront and Rear Park Assist, ultrasonicRear Cross Traffic AlertTeen 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 driverStabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assistDaytime Running Lamps, LED signature lightingHitch Guidance dynamic single line to aid in truck trailer alignment for hitchingRear Seat Belt IndicatorTire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)Safety Alert SeatTrailer Side Blind Zone AlertHitch Guidance with Hitch View with image adjustment, Pan/Zoom/TiltFront 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'sHD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a centre stack display. Includes front camera washer.Bed View Camera, camera in the CHMSL to show a view of the cargo bed display located in infotainment screen, includes Two Trailer Camera ProvisionsTrailer Camera Provisions and trailer viewing softwareForward 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 onlyBuckle 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.)Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel traileringOnStar Services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)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 EquipmentSeat adjuster, driver 10-way power including lumbarSeat adjuster, passenger 10-way power including lumbarSeating, heated driver and front outboard passengerSeats, ventilated driver and front passengerSeats, heated second row outboard seatsCentre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capabilityFloor covering, colour-keyed carpetingSteering wheel, heatedSteering wheel audio controlsCompass, located in instrument clusterWindow, power front, passenger express up/downWindows, power rear, express downDoor locks, powerRemote vehicle starter systemTheft-deterrent system, unauthorized entryPower 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 electricMirror, inside rearview auto-dimmingAssist handles front A-pillar mounted for driver and passenger, rear B-pillar mountedAir conditioning, dual-zone automatic climate controlExterior Temperature Display, located in radio displaySteering column, manual Tilt-Wheel and telescopingRear Seat ReminderAdaptive Cruise ControlSteering wheel, wrappedWireless ChargingUSB Ports, 2 (first row) located on consoleAir vents, rearDriver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital displayWindows, power front, drivers express up/downDriver memory recalls driver "presets" for power driver seat and outside mirrorsUSB Ports, 2, Charge/Data ports located inside centre consoleSeats, front bucket with centre consoleSeat trim, Perforated front LeatherSeat, 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 under-seat storage, (includes child seat top tether anchor)Premium Floor Liners with removable carpet insert, frontPremium Floor Liners with removable carpet insert, rearGMC Premium information Display- 13.4" diagonal Multicolour touch screenKeyless Open and Start includes remote keyless entryUSB ports, (2) charge-only, rearExterior EquipmentTires, LT275/65R20 all-terrain, blackwallTire carrier lock keyed cylinder lock that utilizes same key as ignition and doorCornerStep, rear bumperCargo tie downs (12), fixed, rated at 500 lbs (226.8 kg) per cornerLamps, cargo area cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheelGlass, deep-tintedTailgate and bed rail protection caps, topDoor handles, body-colourMouldings, beltline, BlackMirror caps, high gloss BlackWheelhouse liners, rearWipers, front rain-sensingFog lamps, LEDBed Step, Black integrated on forward portion of bed on driver and passenger sideWheels, 20" (50.8 cm) High Gloss black aluminum wheels 8 spokesTire, spare LT275/70R18 all-terrain, blackwallBumper, front, body-colour lowerBumper, rear body-colour with bumper CornerStepsGrille (Gloss Black header and grille insert bars with Black Chrome accents.)Headlamps, Animated LED projectors LED turn signals and Daytime Running LampsIntelliBeam, 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 fobTaillamps, Animated LED Signature Tail, Stop, turn and Reverse lampsMirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, (U12) perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm]) lightingTailgate, 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 detailsTailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area lightBedliner, Spray-on, Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel)Entertainment EquipmentBose Sound System, premium 7-speaker system with Richbass wooferBluetooth for phone connectivity to vehicle infotainment systemWi-Fi Hotspot capable (Terms and limitations apply. See onstar.ca or dealer for details.)Wireless phone projection for Apple CarPlay and Android AutoSiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (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.)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 phonesSiriusXM Trial SubscriptionMechanical 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 sectionSteering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigueBrakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotorsBrake lining wear indicatorRear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)Pickup bed includes bed assist stepPush Button StartAir filter, heavy-dutyAuto-locking rear differentialHill Descent ControlRecovery hooks, RedTransmission, Allison 10-Speed automaticTransfer case, two-speed active, electronic Autotrac with push button controlIn-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.)Skid Plates protect the oil pan, front axle and transfer caseSuspension, Off-Road includes twin-tube shocksCapless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)GVWR, 10,850 lbs. (4921 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18", 20" or 22" wheels.)Other EquipmentTrailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch GuidanceX31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocksSierra 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 BrakingProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering AppABS, Parking assist system camera, Driver-side airbag, Passenger-side airbag, Sunroof, Adaptive Cruise Control, Air conditioning, Heated steering wheel, Radio, Power steering, Power windows, Electrically adjustable seats, Central door lock, Alarm system, Fog lights, Spare tyre, Navigation system, Keyless central door lock, Seat ventilation, Sound system, Lane departure warning system, Automatic climate control, Blind spot monitor, Traction control, Side airbag, Automatically dimming interior mirror, Seat heating, Traffic sign recognition, Cruise control, Distance warning system, Electronic stability control, MP3, Start-stop system, Multi-function steering wheel, Daytime running lights, Electrical side mirrors, Bluetooth, Heads-up display, Rain sensorABS, Driver-side airbag, Parking assist system camera, Passenger-side airbag, Sunroof, Air conditioning, Adaptive Cruise Control, Heated steering wheel, Radio, Power steering, Power windows, Electrically adjustable seats, Central door lock, Alarm system, Fog lights, Navigation system, Spare tyre, Keyless central door lock, Seat ventilation, Sound system, Lane departure warning system, Blind spot monitor, Automatic climate control, Traction control, Side airbag, Automatically dimming interior mirror, Traffic sign recognition, Seat heating, Cruise control, Distance warning system, Electronic stability control, MP3, Start-stop system, Multi-function steering wheel, Daytime running lights, Electrical side mirrors, Bluetooth, Heads-up display, Rain sensor