The 2026 GMC Sierra 1500 AT4 Crew Cab Short Box 4WD blends rugged off-road capability, premium comfort, and unmistakable GMC presence. With its powerful V8, advanced 4WD system, distinctive AT4 styling, and refined interior, this Sierra is built to take on demanding terrain while keeping every drive comfortable and connected.  

 

Performance & Capability  

Engine: 6.2L EcoTec3 V8 delivering strong, confident power for highway cruising, towing, and off-road adventures  

Transmission: 10-speed automatic transmission with Electronic Precision Shift for smooth, responsive gear changes  

Drivetrain: Autotrac 4-Wheel Drive with a two-speed transfer case for enhanced traction and control in changing conditions  

Rear Axle: 3.23 ratio with an automatic locking rear differential for dependable traction when the going gets tough  

Off-Road Suspension: AT4-specific off-road suspension package designed to provide greater confidence over rough and uneven terrain  

Hill Descent Control: Helps maintain controlled speed on steep declines and challenging trails  

Skid Plates: Added underbody protection for increased confidence when exploring rocky or uneven terrain  

Active Exhaust: Sporty exhaust character that complements the Sierras powerful V8 personality  

Trailering: Integrated trailer brake controller, Hitch Guidance with Hitch View, and trailering app for easier towing management  

 

Winter & All-Season Comfort  

Heated Front Seats: Keeps the driver and front passenger comfortable during cold-weather drives  

Ventilated Front Seats: Provides welcome airflow and comfort during warmer conditions  

Heated Rear Outboard Seats: Adds premium comfort for rear passengers  

Heated Steering Wheel: Keeps hands warm during chilly mornings  

Remote Start: Conveniently preconditions the cabin before you get behind the wheel  

Dual-Zone Automatic Climate Control: Allows driver and passenger to personalize cabin temperatures  

Premium Floor Liners: Durable protection with removable carpet inserts for changing weather and messy conditions  

Rain-Sensing Wipers & Rear Defogger: Added convenience and visibility when weather turns wet or snowy  

 

Interior Comfort & Convenience  

Crew Cab Interior: Spacious seating for passengers with practical rear-seat storage  

Power Front Seats: Power-adjustable driver and passenger seating with driver memory settings  

Power Sliding Rear Window: Opens the cabin to fresh air while providing convenient rear visibility  

Wireless Charging: Keeps compatible smartphones powered without the clutter of charging cables  

13.4 GMC Premium Infotainment: Large touchscreen with Google Built-In compatibility, navigation capability, Bluetooth, and wireless phone projection  

12 Reconfigurable Digital Driver Display: Provides customizable vehicle and driving information directly in the drivers sightline  

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

Universal Home Remote: Convenient control for compatible garage doors and home systems  

Heated & Wrapped Steering Wheel: Combines a premium feel with cold-weather comfort  

 

Safety & Driver Assistance  

GMC Pro Safety: Advanced driver-assistance technology designed to provide added awareness on every journey  

Forward Collision Alert & Automatic Emergency Braking: Helps detect potential frontal hazards and can assist in emergency braking situations  

Lane Keep Assist with Lane Departure Warning: Helps encourage the vehicle to remain centered in its lane  

Adaptive Cruise Control: Helps maintain a set following distance from traffic ahead  

Front & Rear Park Assist: Makes maneuvering the large pickup easier in tight spaces 

HD Surround Vision: Provides enhanced visibility around the truck when parking or navigating challenging areas  

Trailer Side Blind Zone Alert & Rear Cross Traffic Braking: Added confidence when changing lanes, backing up, or towing  

Front & Rear Pedestrian Awareness: Provides additional assistance when people are detected around the vehicle  

Driver Safety Alert Seat: Uses seat vibrations to provide intuitive warnings to the driver  

 

Exterior Styling & Utility  

20 Machined Aluminum Wheels: Finished with Carbon Grey Metallic accents for a bold AT4 appearance  

275/60R20 All-Terrain Tires: Designed to provide confident traction on pavement, gravel, mud, and trails  

Exterior Colour: Coastal Dune a sophisticated, earthy tone that complements the Sierras rugged AT4 character  

AT4 Styling: Distinctive design cues, red recovery hooks, and aggressive proportions give this Sierra an unmistakable off-road presence  

GMC MultiPro Tailgate: Versatile configuration provides easier loading, access, and everyday cargo utility  

Spray-On Bedliner: Helps protect the pickup box from demanding cargo and daily use  

120-Volt Bed-Mounted Outlet: Convenient power source for tools, equipment, and outdoor activities  

LED Fog Lamps & Cargo Bed Lighting: Improved visibility and practical illumination after dark  

Sport Steps: Provide easier access to the cab while complementing the AT4s rugged styling  

 

Whether youre navigating snowy roads, towing on the weekend, commuting through the city, or heading deep onto the trail, the 2026 GMC Sierra 1500 AT4 delivers a compelling combination of V8 performance, off-road confidence, premium comfort, and advanced technology. Its a bold, capable pickup engineered for drivers who want serious capability without sacrificing refinement. 

 



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.

Engine: 8 Cylinder Engine 6.2L/376CI
L/100Km City: 17.1
L/100Km Hwy: 14.0


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, ultrasonicHitch GuidanceRear Seat ReminderStabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assistDaytime Running Lamps, LED signature lightingRear Seat Belt IndicatorTire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)Rear Cross Traffic BrakingRear Pedestrian AlertTrailer Side Blind Zone AlertHD 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 softwareSeat Belt Adjustable Guide Loops, front row onlyAutomatic Emergency Braking (Included and only available with (PDI) GMC Pro Safety.)Front Pedestrian Braking (Included and only available with (PDI) GMC Pro Safety.)Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)Lane Keep Assist with Lane Departure Warning (Included and only available with (PDI) GMC Pro Safety.)Safety Alert Seat (Included and only available with (PDI) GMC Pro Safety.)Hitch View with image adjustment, Pan/Zoom/TiltOnStar Services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)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) GMC 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. Term begins on vehicle delivery date. 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. Services, connectivity, and capabilities have additional terms and limitations and are subject to change, and will vary by model, vehicle configuration, software version, conditions, and geographical and technical restrictions. Compatible smartphone required for mobile app commands. Not all vehicles may transmit all crash data; OnStar links to emergency services; Voice and Maps apps are subject to change at any time and may be provided by third parties. Non-refundable and no cash value. See onstar.ca/en/info for terms and 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, heatedCompass, located in instrument clusterWindow, power front, passenger express up/downWindows, power rear, express downDoor locks, powerRemote vehicle starter systemTheft-deterrent system, unauthorized entryDefogger, 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 displayPower outlet, interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)Adaptive Cruise ControlSteering wheel, wrappedWireless ChargingUSB Ports, 2 (first row) located on consoleAir vents, rearDriver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital displayBrake lining wear indicatorWindows, 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 consoleSteering column lock, electricalSeats, front bucket with centre consolePremium Floor Liners with removable carpet insert, frontPremium Floor Liners with removable carpet insert, rearKeyless Open and Start includes remote keyless entryUSB ports, (2) charge-only, rearGMC Premium information Display-13.4" diagonal Multicolour I touch screenSeat, 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)Steering column, power rake and telescopingIn-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 moduleSeat trim, Perforated leather frontExterior EquipmentTire carrier lock keyed cylinder lock that utilizes same key as ignition and doorCornerStep, rear bumperGlass, deep-tintedTailgate and bed rail protection caps, topDoor handles, body-colourLamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheelWheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spareMirror caps, high gloss BlackWheelhouse liners, rearLighting, perimeterMirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memoryWipers, front rain-sensingFog lamps, LEDTailgate, GMC MultiPro Tailgate with six functional load/access featuresBumper, rear body-colour with corner stepsBumper, front, body-colour lowerLED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fobTailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area lightHeadlamps, LED projectors with Fade-on/Fade-off animation, LED turn signals and Daytime Running LampsIntelliBeam, automatic high beam on/off (Included and only available with (PDI) GMC Pro Safety.)Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animationWheelhouse liners, rear (Deleted with (PCP) AT4 CarbonPro Edition.)Grille (Black chrome header and grille insert bars with gloss black accents.)Wheels, 20" x 9" (50.8 cm x 22.9 cm) machined aluminum with Carbon Grey Metallic accentsTires, 275/60R20SL all-terrain, blackwall (Includes (QAQ) spare tire.)Tire, spare 255/80R17SL all-season, blackwall (Included and only available with 20" or 22" wheels and tires excluding (QFV) LT265/60R20 MT blackwall Goodyear Wrangler Territory tires.)Bedliner, Spray-on Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Deleted with (PCP) AT4 CarbonPro Edition.)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.)SiriusXMSteering wheel audio controlsAudio 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 phonesWireless, Apple CarPlay / Wireless Android AutoSiriusXM 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 EquipmentFour wheel driveTrailer brake controller, integratedBrakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotorsFrame, fully-boxed, hydroformed front sectionExhaust, aluminized stainless-steel muffler and tailpipePush Button StartAir filter, heavy-dutyAuto-locking rear differentialAutomatic Stop/StartHill Descent ControlSkid PlatesSteering, Electric Power Steering (EPS) assist, rack-and-pinionCapless Fuel FillRear axle, 3.23 ratioAlternator, 220 ampsPickup bedTransfer case, two-speed, electronic Autotrac with push button control (4WD models only)Suspension, Off-Road with 2" factory installed lift and monotube shocksRecovery hooks, RedCargo tie downs (12), fixed, rated at 500 lbs per cornerElectronic Precision Shift and steering column paddle shiftersEngine, Duramax 3.0L Turbo-Diesel I6 (305 hp [227 kW] @ 3750 rpm, 495 lb-ft of torque [671 Nm] @ 2750 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.)Battery, heavy-duty 850 cold-cranking amps/95 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)Transmission, 10-speed automatic with Electronic Precision shift, electronically controlled with overdrive, tow/haul mode and steering column paddle shifters. Includes Cruise Grade Braking and Powertrain Grade BrakingGVWR, 7200 lbs. (3266 kg) (Requires TK10*43 Crew Cab 4WD model with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)Exhaust, dual system (Includes chrome exhaust tips. Not available with (L87) 6.2L EcoTec3 V8 engine.)Other EquipmentTrailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch GuidanceGMC Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UHX) Lane Keep Assist with Lane Departure Warning, and (UHY) Automatic Emergency Braking (Includes (T8Z) Buckle to Drive and (HS1) Safety Alert Seat.)