Vehicle Details
Body Style
Truck
Engine
6.2L 8Cyl
Exterior Colour
Black
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
303720
Fuel Type
Gasoline
Trim Details
Crew Cab Short Box 4-Wheel Drive AT4
Description
The 2026 GMC Sierra 1500 AT4 Crew Cab Short Box 4WD combines off-road capability, premium craftsmanship, and advanced technology into one bold and rugged full-size pickup. Designed for drivers who demand strength without sacrificing refinement, the AT4 delivers confident performance on the trail, at the jobsite, or during everyday driving with an unmistakable GMC presence.Â
Performance & CapabilityÂ
Engine: 6.2L ECOTEC3 V8 delivering commanding horsepower, strong torque, and confident towing capabilityÂ
Transmission: Smooth-shifting 10-speed automatic transmission with Electronic Precision ShiftÂ
Drivetrain: Autotrac Two-Speed 4-Wheel Drive system for superior traction across changing terrainÂ
Suspension: Factory Off-Road Suspension Package tuned for enhanced capability and controlÂ
Rear Axle Ratio: 3.23 rear axle balancing towing strength and highway efficiencyÂ
Automatic Locking Rear Differential for improved traction in challenging conditionsÂ
Hill Descent Control and skid plates for added confidence on rugged trailsÂ
FlexRide Drive Mode System adapts handling and performance to varying road conditionsÂ
Active Exhaust System delivers a bold and aggressive V8 sound experienceÂ
Heavy-Duty Air Filter, Engine Oil Cooler, and Transmission Oil Cooler support demanding workloads and towingÂ
Trailering & Off-Road UtilityÂ
Trailering Package with integrated Trailer Brake Controller for confident towing performanceÂ
Hitch Guidance with Hitch View simplifies trailer alignment and hookupÂ
Trailer Side Blind Zone Alert enhances awareness while towingÂ
Trailer Camera Provisions and Bed View Camera improve visibility around cargo and trailersÂ
GMC MultiPro Tailgate offers versatile loading, worksite, and cargo access solutionsÂ
Spray-On Bedliner and rear wheelhouse liners help protect the truck bed from wear and damageÂ
120-Volt Bed-Mounted Power Outlet provides convenient jobsite or campsite power accessÂ
Front Red Recovery Hooks and Off-Road High Clearance Steps reinforce the AT4’s rugged functionalityÂ
Winter & Weather ComfortÂ
Heated & Ventilated Front Seats for year-round driving comfortÂ
Heated Rear Outboard Seats and Heated Steering Wheel for added cold-weather luxuryÂ
Remote Vehicle Start System allows the cabin to warm or cool before you enterÂ
Dual-Zone Automatic Climate Control with rear air vents for balanced cabin comfortÂ
Rain-Sensing Windshield Wipers and deep-tinted glass enhance visibility and refinementÂ
All-Weather Floor Liners provide durable interior protection through every seasonÂ
Interior Comfort & ConvenienceÂ
Front Bucket Seats with power adjustments, driver memory settings, and premium Jet Black/Kalahari interior accentsÂ
Power Sliding Rear Window and Rear Seat Storage Package add practicality and versatilityÂ
Wireless Charging Pad and multiple USB ports throughout the cabin keep devices poweredÂ
Keyless Open & Push-Button Start for effortless entry and ignitionÂ
Power Sunroof brings natural light and an open-air feel to the cabinÂ
Bose® Premium Sound System delivers rich and immersive audio qualityÂ
Active Noise Management creates a quieter and more refined driving experienceÂ
Universal Home Remote and integrated convenience technologies simplify daily drivingÂ
Technology & ConnectivityÂ
13.4" GMC Premium Infotainment Touchscreen with Google Built-In compatibility and navigation capabilityÂ
12" Reconfigurable Digital Driver Information Centre for customizable vehicle informationÂ
Wireless Apple CarPlay® & Android Autoâ„¢ compatibility for seamless smartphone integrationÂ
Multi-Colour 15" Head-Up Display projects key driving information directly into viewÂ
HD Surround Vision provides a comprehensive 360-degree camera perspectiveÂ
Rear Camera Mirror improves rear visibility even with cargo or passengers onboardÂ
Wi-Fi Hotspot capability and connected vehicle technologies keep you connected wherever the road leadsÂ
Safety & Driver AssistanceÂ
GMC Pro Safety Suite with advanced driver-assistance technologiesÂ
Forward Collision Alert with Automatic Emergency BrakingÂ
Lane Keep Assist with Lane Departure Warning for added highway confidenceÂ
Front Pedestrian Braking and Rear Pedestrian Alert for enhanced awareness in busy environmentsÂ
Adaptive Cruise Control for more relaxed long-distance drivingÂ
Front & Rear Park Assist simplifies parking and low-speed maneuveringÂ
Following Distance Indicator and Driver Safety Alert Seat support attentive driving habitsÂ
Teen Driver Mode and Buckle-to-Drive technology promote safer driving awarenessÂ
Exterior Styling & UtilityÂ
Exterior Colour: Onyx Black — bold, aggressive, and unmistakably premiumÂ
18" Machined Aluminum Wheels with dark-painted pockets and aggressive Goodyear Territory MT tiresÂ
Signature LED Lighting, LED Fog Lamps, and LED Cargo Bed Lighting for enhanced visibilityÂ
Distinctive AT4 grille, dark exterior accents, and athletic off-road stanceÂ
GMC MultiPro Tailgate with EZ Lift power lock and release functionalityÂ
Perimeter Lighting and integrated CornerStep rear bumper improve convenience in low-light conditionsÂ
High-clearance off-road steps enhance both utility and rugged appearanceÂ
Whether you’re towing heavy equipment, exploring off-road trails, or cruising through everyday life in premium comfort, the 2026 GMC Sierra 1500 AT4 Crew Cab Short Box 4WD delivers powerful capability, advanced technology, and bold styling built for drivers who demand rugged refinement without compromise.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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Bumper, front, body-colour lower
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Bumper, rear body-colour with corner steps
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Grille (Black chrome header and grille insert bars with gloss black accents.)
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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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GVWR, 7200 lbs. (3266 kg) (Requires TK10*43 Crew Cab 4WD model with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
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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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Hill Descent Control
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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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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 CodeMHS
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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
-
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)7100
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Gross Combined Wt Rating (lbs)15000
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EnerGuide Estimate - City (L/100 km)17.1
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EnerGuide Estimate - Hwy (L/100 km)14.0
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G/km Of CO2 Emissions368
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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)9000
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Wt Distributing Hitch - Max Tongue Wt. (lbs)900
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)7100
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)1775
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Maximum Trailering Capacity (lbs)9000
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Engine TypeGas V8
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Fuel SystemDirect Injection
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Engine Order CodeL87
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Displacement6.2L/376
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SAE Net Horsepower @ RPM420 @ 5600
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SAE Net Torque @ RPM460 @ 4100
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Engine Oil CoolerYes
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Cold Cranking Amps @ 0° F (Primary)730
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Maximum Alternator Capacity (amps)170
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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 CodeR3O
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Rear Tire Order CodeR3O
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Spare Tire Order CodeQAQ
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Front Tire SizeLT275/65R18C
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Rear Tire SizeLT275/65R18C
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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)18 x 8.5
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Rear Wheel Size (in)18 x 8.5
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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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