Vehicle Details
Body Style
Truck
Engine
6.2L 8Cyl
Exterior Colour
White
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
303685
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 premium off-road capability, bold AT4 styling, and advanced technology into one rugged yet refined full-size pickup. Designed for drivers who demand strength, comfort, and versatility, this Sierra AT4 is equally at home on the highway, jobsite, or backcountry trail.Â
Performance & CapabilityÂ
Engine: Powerful 6.2L ECOTEC3 V8 delivering impressive horsepower, responsive acceleration, and confident towing capabilityÂ
Transmission: Advanced 10-speed automatic transmission with Electronic Precision Shift for smooth and refined gear changesÂ
Drivetrain: Autotrac Two-Speed 4WD system providing enhanced traction and control in changing road conditionsÂ
Off-Road Suspension Package engineered for improved ground clearance, durability, and trail capabilityÂ
Automatic Locking Rear Differential for added traction on rough or slippery terrainÂ
Hill Descent Control for confident handling on steep gradesÂ
Active Exhaust System delivering a bold and performance-inspired exhaust noteÂ
Heavy-Duty Air Filter, Engine Oil Cooler, and Transmission Oil Cooler for dependable performance under demanding conditionsÂ
Integrated Trailering Package featuring Trailer Brake Controller, Hitch Guidance with Hitch View, Trailer Camera Provisions, and in-vehicle trailering technologyÂ
FlexRide Drive Mode System allowing tailored performance for varying terrain and driving conditionsÂ
Winter & Weather ComfortÂ
Heated & Ventilated Front Seats providing year-round comfort in every seasonÂ
Heated Rear Outboard Seats and Heated Steering Wheel for added cold-weather luxuryÂ
Remote Start System allowing the cabin to warm up or cool down before you enterÂ
Dual-Zone Automatic Climate Control with rear climate vents for personalized cabin comfortÂ
Engine Block Heater for reliable cold-weather startsÂ
Rain-Sensing Wipers and Rear Window Defogger for improved visibility in changing weather conditionsÂ
Deep-Tinted Glass helping reduce glare and maintain cabin privacyÂ
Interior Comfort & TechnologyÂ
Spacious Crew Cab configuration offering generous passenger room and everyday practicalityÂ
Premium Front Bucket Seats with power driver and passenger adjustments for exceptional comfortÂ
Driver Memory Settings for convenient personalization of seating and mirror positionsÂ
Power Sunroof bringing added openness and natural light into the cabinÂ
Power Sliding Rear Window and Rear Seat Storage Package for added versatility and utilityÂ
Wireless Charging Pad plus multiple USB and 120V power outlets throughout the cabinÂ
Keyless Open & Push-Button Start for effortless convenienceÂ
Wireless Apple CarPlay® & Android Autoâ„¢ smartphone integrationÂ
Massive 13.4" GMC Premium Infotainment Touchscreen with Google Built-In compatibility and navigation capabilityÂ
12" Digital Driver Information Centre with customizable vehicle information displaysÂ
Multicolor 15" Head-Up Display projecting key driving information directly onto the windshieldÂ
Bose® Premium Audio System delivering rich, immersive sound qualityÂ
Rear Camera Mirror and HD Surround Vision for enhanced visibility and confidence while driving or maneuveringÂ
Safety & Driver AssistanceÂ
GMC Pro Safety Suite engineered to provide enhanced confidence and awareness on the roadÂ
Forward Collision Alert with Automatic Emergency Braking and Front Pedestrian BrakingÂ
Lane Keep Assist with Lane Departure Warning helping maintain confident highway drivingÂ
Adaptive Cruise Control for added convenience during long-distance travelÂ
Rear Cross Traffic Braking and Trailer Side Blind Zone Alert for improved awareness while towing or reversingÂ
Front & Rear Park Assist with HD Surround Vision for easier maneuvering in tight spacesÂ
Following Distance Indicator and Driver Safety Alert Seat for enhanced driver awarenessÂ
Rear Pedestrian Alert, Teen Driver Technology, and Buckle-to-Drive safety features for added peace of mindÂ
Exterior Styling & UtilityÂ
Bold AT4-exclusive exterior styling with aggressive off-road presence and premium detailingÂ
Exterior Colour: Summit White — clean, timeless, and unmistakably boldÂ
20" Machined Aluminum Wheels with Carbon Grey Metallic accents paired with all-terrain tires for commanding style and capabilityÂ
Signature LED Lighting including LED fog lamps and cargo bed lighting for excellent visibility day or nightÂ
GMC MultiPro Tailgate offering exceptional versatility for loading, storage, and workspace functionalityÂ
EZ Lift Power Lock & Release Tailgate for effortless cargo accessÂ
Spray-On Bedliner helping protect the cargo box from scratches and wearÂ
120V Bed-Mounted Power Outlet providing convenient jobsite or recreational functionalityÂ
Off-Road High Clearance Assist Steps for easier entry while maintaining trail-ready capabilityÂ
Red Front Recovery Hooks, Skid Plates, and Perimeter Lighting enhancing both functionality and rugged appearanceÂ
Whether you’re towing equipment, heading into the mountains, or cruising through the city, the 2026 GMC Sierra 1500 AT4 delivers premium comfort, advanced technology, and authentic off-road capability. It’s a truck built to handle demanding adventures while surrounding you with refinement, confidence, and unmistakable GMC presence.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 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
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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)7100
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Gross Combined Wt Rating (lbs)15000
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EnerGuide Estimate - City (L/100 km)16.0
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EnerGuide Estimate - Hwy (L/100 km)12.1
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G/km Of CO2 Emissions335
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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)8900
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Wt Distributing Hitch - Max Tongue Wt. (lbs)890
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)6600
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)1650
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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 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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