Vehicle Details
Body Style
Truck
Engine
3.0L 6Cyl
Exterior Colour
Black
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
303835
Fuel Type
Diesel
Trim Details
Crew Cab Short Box 4-Wheel Drive AT4
Description
The 2026 GMC Sierra 1500 AT4 combines rugged off-road capability, premium comfort, and professional-grade performance into one bold and refined pickup. Built for drivers who demand adventure-ready toughness without sacrificing modern technology and everyday luxury, this Sierra AT4 stands out with aggressive styling, advanced trailering features, and confident diesel power.Â
Performance & CapabilityÂ
Engine: Duramax® 3.0L Turbo-Diesel delivering impressive torque, smooth power delivery, and exceptional long-distance capabilityÂ
Transmission: Responsive 10-speed automatic transmission with Electronic Precision ShiftÂ
Drivetrain: Autotrac 4-Wheel Drive (4WD) system providing confident traction across changing terrain and weather conditionsÂ
Suspension: Off-Road Suspension Package engineered for enhanced ground clearance and trail-ready capabilityÂ
Rear Axle Ratio: 3.23 rear axle balancing towing confidence with highway efficiencyÂ
Trailering Equipment: Integrated trailer brake controller, Hitch Guidance with Hitch View, trailer camera provisions, and advanced in-vehicle trailering technologiesÂ
Off-Road Capability: Automatic locking rear differential, skid plates, hill descent control, and red front recovery hooks for confident off-road adventuresÂ
Drive Modes: FlexRide mode system optimizing performance across varying road and terrain conditionsÂ
Heavy-Duty Air Filter and 220-amp alternator supporting demanding workloads and rugged environmentsÂ
Active Aero Shutters helping improve efficiency and aerodynamic performanceÂ
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Winter & Weather ComfortÂ
Heated & Ventilated Front Seats delivering year-round driving comfortÂ
Heated Rear Outboard Seats and Heated Steering Wheel for enhanced cold-weather convenienceÂ
Remote Start System allowing the cabin to warm up or cool down before you enterÂ
Dual-Zone Automatic Climate Control with humidity and moisture sensors for personalized cabin comfortÂ
Rain-Sensing Windshield Wipers automatically adapting to changing weather conditionsÂ
Engine Block Heater for reliable winter starts in colder climatesÂ
Premium All-Weather Floor Liners helping protect the interior from dirt, snow, and mudÂ
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Interior Comfort & TechnologyÂ
Premium Jet Black and Kalahari Interior with upscale AT4-exclusive styling and refined materialsÂ
Front Bucket Seats with power-adjustable driver and front passenger seating plus memory settingsÂ
Power Sunroof adding openness and natural light to the cabinÂ
Power Sliding Rear Window and Rear Seat Storage Package increasing convenience and interior versatilityÂ
Wireless Charging Pad and multiple USB/120V outlets throughout the cabin for seamless device connectivityÂ
Keyless Open & Push-Button Start for effortless everyday operationÂ
Wireless Apple CarPlay® & Android Autoâ„¢ smartphone integrationÂ
13.4" GMC Premium Infotainment Touchscreen with Google Built-In compatibility and navigation capabilityÂ
12" Digital Driver Information Centre with customizable vehicle and driving informationÂ
Bose® Premium Audio System delivering rich, immersive sound quality throughout the cabinÂ
Rear Camera Mirror, Bed View Camera, HD Surround Vision, and a 15" Multicolor Head-Up Display enhancing visibility and driver awarenessÂ
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Safety & Driver AssistanceÂ
GMC Pro Safety technologies designed to provide confidence and added peace of mind on every driveÂ
Forward Collision Alert with Automatic Emergency BrakingÂ
Lane Keep Assist with Lane Departure Warning helping maintain safer highway positioningÂ
Front Pedestrian Braking and Rear Pedestrian Alert for increased awareness in urban settingsÂ
Rear Cross Traffic Braking and Trailer Side Blind Zone Alert improving confidence while towing or maneuveringÂ
Adaptive Cruise Control and Following Distance Indicator for relaxed highway drivingÂ
Front & Rear Park Assist helping simplify parking in tight spacesÂ
HD Surround Vision providing a complete overhead view while parking or traileringÂ
Teen Driver Mode and Buckle-to-Drive helping encourage safer driving habitsÂ
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Exterior Styling & UtilityÂ
Exterior Colour: Onyx Black — bold, aggressive, and unmistakably premium in appearanceÂ
20" Machined Aluminum Wheels with Carbon Grey Metallic accents paired with all-terrain tires for a rugged AT4 stanceÂ
Signature LED Headlamps, LED Fog Lamps, IntelliBeam automatic high beams, and LED cargo bed lighting for enhanced visibilityÂ
GMC MultiPro Tailgate with EZ Lift power lock and release functionality for maximum versatility and convenienceÂ
Spray-On Bedliner and 120V Bed-Mounted Power Outlet adding durability and practical worksite functionalityÂ
Off-Road High Clearance Steps offering improved accessibility while maintaining trail-ready capabilityÂ
Perimeter Lighting and aggressive AT4 styling cues creating a bold presence day or nightÂ
Dual Exhaust System adding a refined and confident finishing touch to the truck’s rugged personalityÂ
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Whether you're towing heavy equipment, exploring off-road trails, or handling everyday responsibilities in comfort, the 2026 GMC Sierra 1500 AT4 delivers diesel-powered capability, advanced technology, and premium refinement in one commanding package. It’s a truck built to go further, work harder, and stand out wherever the road leads.Â
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Packages & Options
Standard Equipment
Technical Specifications
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AM/FM Stereo
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Auxiliary Audio Input
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Bluetooth Connection
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MP3 Player
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Navigation System
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Smart Device Integration
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Requires Subscription
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Satellite Radio
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Premium Sound System
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Steering Wheel Audio Controls
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WiFi Hotspot
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Aluminum Wheels
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Tires - Front All-Terrain
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Tires - Rear All-Terrain
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Conventional Spare Tire
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Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
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Wheelhouse liners, rear (Deleted with (PCP) AT4 CarbonPro Edition.)
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Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
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Bumper, front, body-colour lower
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CornerStep, rear bumper
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Daytime Running Lights
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LED Headlights
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Automatic Highbeams
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Fog Lamps
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Lighting, perimeter
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Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
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Heated Mirrors
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Mirror Memory
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Power Folding Mirrors
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Power Mirror(s)
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Mirror caps, high gloss Black
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Intermittent Wipers
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Rain Sensing Wipers
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Variable Speed Intermittent Wipers
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Privacy Glass
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Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
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LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
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Integrated Tailgate Step
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Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
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Tailgate and bed rail protection caps, top
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Door handles, body-colour
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Bed Liner
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Bucket Seats
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Leather Seats
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Driver Adjustable Lumbar
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Power Driver Seat
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Passenger Adjustable Lumbar
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Power Passenger Seat
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Heated Front Seat(s)
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Mirror Memory
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Seat Memory
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Cooled Front Seat(s)
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Pass-Through Rear Seat
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Rear Bench Seat
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Heated Rear Seat(s)
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Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
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Floor covering, colour-keyed carpeting
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Floor Mats
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Adjustable Steering Wheel
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Steering wheel, wrapped
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Heated Steering Wheel
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Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
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GMC Premium information Display-13.4" diagonal Multicolour I touch screen
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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
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Compass, located in instrument cluster
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Exterior Temperature Display, located in radio display
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Brake lining wear indicator
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Power Windows
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Power Door Locks
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Keyless Entry
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Keyless Start
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Remote Engine Start
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Adaptive Cruise Control
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Cruise Control
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Security System
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Steering column lock, electrical
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Wireless Charging
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Power outlet, interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
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Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
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Auxiliary Audio Input
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MP3 Player
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USB ports, (2) charge-only, rear
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A/C
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Climate Control
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Multi-Zone A/C
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Air vents, rear
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Rear Defrost
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Auto-Dimming Rearview Mirror
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Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
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Diesel Fuel
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Straight 6 Cylinder Engine
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Turbocharged
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10-Speed A/T
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A/T
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Transmission w/Dual Shift Mode
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Rear axle, 3.23 ratio
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Pickup bed
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Keyless Start
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Air filter, heavy-duty
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Automatic Stop/Start
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Locking/Limited Slip Differential
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Transfer case, two-speed, electronic Autotrac with push button control (4WD models only)
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Suspension, Off-Road with 2" factory installed lift and monotube shocks
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Four Wheel Drive
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Alternator, 220 amps
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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.)
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Frame, fully-boxed, hydroformed front section
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Trailer brake controller, integrated
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Tow Hooks
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Skid Plates
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Cargo tie downs (12), fixed, rated at 500 lbs per corner
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Power Steering
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4-Wheel Disc Brakes
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ABS
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Capless Fuel Fill
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Exhaust, dual system (Includes chrome exhaust tips. Not available with (L87) 6.2L EcoTec3 V8 engine.)
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Exhaust, aluminized stainless-steel muffler and tailpipe
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Tow Hitch
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Automatic Highbeams
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Front Collision Mitigation
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Front Collision Warning
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Lane Departure Warning
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Lane Keeping Assist
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Front Collision Mitigation
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Front Collision Warning
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Stability Control
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Traction Control
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Daytime Running Lights
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Driver Air Bag
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Front Head Air Bag
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Front Side Air Bag
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Passenger Air Bag
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Passenger Air Bag Sensor
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Rear Head Air Bag
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Requires Subscription
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Telematics
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Hitch View with image adjustment, Pan/Zoom/Tilt
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Hitch Guidance
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Aerial View Display System
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Back-Up Camera
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Trailer Camera Provisions and trailer viewing software
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Rear Parking Aid
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Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
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Lane Departure Warning
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Lane Keeping Assist
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Blind Spot Monitor
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Cross-Traffic Alert
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Rear Pedestrian Alert
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Driver Monitoring
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Seat Belt Adjustable Guide Loops, front row only
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Rear Seat Belt Indicator
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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.)
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Tire Pressure Monitor
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Rear Seat Reminder
No matches were found.
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Vehicle NameGMC Sierra 1500
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Body StyleCrew Cab Pickup
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Body CodeE63
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DrivetrainFour Wheel Drive
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Trans Order CodeMQC
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Trans Type10
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Trans Description Cont.Automatic
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First Gear Ratio (:1)4.70
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Second Gear Ratio (:1)2.99
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Third Gear Ratio (:1)2.15
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Fourth Gear Ratio (:1)1.77
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Fifth Gear Ratio (:1)1.52
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Sixth Gear Ratio (:1)1.28
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Seventh Gear Ratio (:1)1.00
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Eighth Gear Ratio (:1)0.85
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Ninth Gear Ratio (:1)0.69
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Tenth Gear Ratio (:1)0.64
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Reverse Ratio (:1)4.87
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Transfer Case ModelMagna MP3023/4
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Transfer Case Gear Ratio (:1), High1.00
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Transfer Case Gear Ratio (:1), Low2.69
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Passenger Capacity5
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Front Head Room (in)43.03
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Front Leg Room (in)44.53
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Front Shoulder Room (in)64.54
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Front Hip Room (in)60.78
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Second Head Room (in)40.12
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Second Leg Room (in)43.4
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Second Shoulder Room (in)64
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Second Hip Room (in)59.24
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Gross Axle Wt Rating - Front (lbs)3800
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Gross Axle Wt Rating - Rear (lbs)3800
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Curb Weight - Front (lbs)2845
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Curb Weight - Rear (lbs)1981
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Gross Vehicle Weight Rating Cap (lbs)7200
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Gross Combined Wt Rating (lbs)15000
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EnerGuide Estimate - City (L/100 km)10.7
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EnerGuide Estimate - Hwy (L/100 km)9.3
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G/km Of CO2 Emissions270
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Dead Weight Hitch - Max Trailer Wt. (lbs)5000
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Dead Weight Hitch - Max Tongue Wt. (lbs)500
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Wt Distributing Hitch - Max Trailer Wt. (lbs)8700
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Wt Distributing Hitch - Max Tongue Wt. (lbs)870
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)6700
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)1675
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Maximum Trailering Capacity (lbs)9000
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Engine TypeTurbocharged Diesel I6
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Fuel SystemDirect Injection
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Engine Order CodeLZ0
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Displacement3.0L/183
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SAE Net Horsepower @ RPM305 @ 3750
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SAE Net Torque @ RPM495 @ 2750
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Cold Cranking Amps @ 0° F (Primary)850
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Maximum Alternator Capacity (amps)220
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Frame TypeHydroformed
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Suspension Type - FrontIndependent
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Suspension Type - RearSolid Axle
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Spring Capacity - Front (lbs)3800
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Spring Capacity - Rear (lbs)3850
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Axle Capacity - Front (lbs)3800
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Axle Capacity - Rear (lbs)3800
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Axle Ratio (:1) - Front3.23
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Axle Ratio (:1) - Rear3.23
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Stabilizer Bar Diameter - Front (in)1.3
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Front Tire Order CodeQAE
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Rear Tire Order CodeQAE
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Spare Tire Order CodeQAQ
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Front Tire Size275/60R20SL
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Rear Tire Size275/60R20SL
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Spare Tire Size255/80R17SL
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Front Tire Capacity (lbs)3800
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Rear Tire Capacity (lbs)3800
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Revolutions/Mile @ 45 mph - Front (Rev/Mile)N/A
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Revolutions/Mile @ 45 mph - Rear (Rev/Mile)N/A
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Revolutions/Mile @ 45 mph - Spare (Rev/Mile)N/A
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Front Wheel Size (in)20 x 9
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Rear Wheel Size (in)20 x 9
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Spare Wheel Size (in)17 x 8
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Front Wheel MaterialAluminum
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Rear Wheel MaterialAluminum
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Spare Wheel MaterialSteel
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Steering TypeElectric Rack & Pinion
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Turning Diameter - Curb to Curb (ft)47.3
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Turning Diameter - Wall to Wall (ft)N/A
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Brake TypePwr
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Brake ABS System4-Wheel
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Disc - FrontYes
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Disc - RearYes
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Front Brake Rotor Diam x Thickness (in)13 x 1.18
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Rear Brake Rotor Diam x Thickness (in)13.6 x 0.79
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Fuel Tank Capacity, Approx (L)91
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Wheelbase (in)148
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Length, Overall (in)232.9
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Width, Max w/o mirrors (in)81.24
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Height, Overall (in)78.35
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Ground Clearance, Front (in)11.1
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Ground Clearance, Rear (in)11.1
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Cargo Box Length @ Floor (in)69.92
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Cargo Box Width @ Floor (in)71.4
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Cargo Box Width @ Wheelhousings (in)50.63
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Cargo Box (Area) Height (in)22.42
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Cargo Volume (ft³)62.9
No matches were found.
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