Vehicle Details
Body Style
Truck
Engine
3.0L 6Cyl
Exterior Colour
Tan
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
303886
Fuel Type
Diesel
Trim Details
Crew Cab Short Box 4-Wheel Drive AT4X
Description
The 2026 GMC Sierra 1500 AT4X Crew Cab Short Box 4WD represents the peak of off-road luxury and factory-engineered toughness. Designed for serious terrain and refined everyday driving, it blends extreme capability, advanced technology, and premium comfort into one commanding full-size truck built to go further than the road allows. Â
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Performance & CapabilityÂ
Engine: 3.0L Duramax Turbo-Diesel delivering exceptional low-end torque, smooth power delivery, and long-distance efficiency under load Â
Transmission: 10-speed automatic engineered for seamless shifting and optimal performance across towing, highway, and off-road conditions Â
Drivetrain: Advanced 4WD system with Autotrac two-speed transfer case for maximum control in extreme environments Â
Suspension: AT4X off-road suspension package with enhanced articulation, control, and terrain absorption for rock, mud, and trail performance Â
Front & Rear Locking Differentials: Driver-selectable full locking front and rear differentials for unmatched traction in low-grip conditions Â
Skid Protection: Heavy-duty skid plates and reinforced underbody protection for aggressive off-road durability Â
Trailering Tech: Integrated trailer brake controller, hitch guidance with hitch view, trailer camera provisions, and smart trailering app support Â
Axle Ratio: 3.23 rear axle optimized for balance between towing strength and diesel efficiency Â
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Extreme Off-Road EngineeringÂ
AEV-stamped steel front bumper with heavy-duty recovery points for serious trail capability Â
High-clearance stance and reinforced chassis tuning for demanding terrain Â
Hill Descent Control and off-road drive calibration for controlled navigation on steep grades Â
Heavy-duty air filtration system designed for dusty and rugged environments Â
Trail-ready tire setup with aggressive all-terrain design for maximum grip Â
Bed-mounted recovery readiness and off-road utility integration Â
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Winter & All-Season ComfortÂ
Heated and ventilated front seats for year-round climate comfort Â
Heated rear outboard seats and heated steering wheel for cold-weather refinement Â
Remote start system to pre-condition the cabin in extreme temperatures Â
Dual-zone automatic climate control for personalized comfort settings Â
Engine block heater for reliable starts in deep winter conditions Â
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Interior Comfort & Luxury CraftsmanshipÂ
Premium AT4X interior with Jet Black and Ceramic White contrast design for a bold, upscale cabin feel Â
Front bucket seats with full power adjustment, lumbar support, and advanced comfort controls Â
Driver and front passenger seat massage functionality for long-distance relaxation Â
Power bolster and shoulder adjustment for customized ergonomic support Â
13.4" GMC premium infotainment touchscreen with Google built-in navigation and connectivity Â
15" multicolor head-up display projecting key driving data directly into the driver’s line of sight Â
Bose premium audio system delivering immersive, high-fidelity sound throughout the cabin Â
Wireless charging, USB ports, and full smartphone integration with Apple CarPlay® & Android Autoâ„¢ Â
Spacious Crew Cab layout with rear seat storage and premium interior materials throughout Â
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Safety & Driver AssistanceÂ
GMC Pro Safety suite with advanced collision avoidance and driver awareness systems Â
Forward Collision Alert with Automatic Emergency Braking Â
Lane Keep Assist with Lane Departure Warning Â
Front Pedestrian Braking and Rear Pedestrian Alert Â
Trailer Side Blind Zone Alert and Rear Cross Traffic Braking for towing confidence Â
HD Surround Vision with Bed View Camera for complete situational awareness Â
Front and Rear Park Assist for tight maneuvering Â
Adaptive Cruise Control with Following Distance Indicator Â
Buckle to Drive and Teen Driver technologies for enhanced safety control Â
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Exterior Styling & UtilityÂ
Bold AT4X exterior design finished in Obsidian Rush with rugged premium detailing Â
18" wheels paired with off-road tuned suspension for maximum terrain capability Â
LED lighting system including fog lamps, perimeter lighting, and cargo bed illumination Â
GMC MultiPro Tailgate with six-function versatility for loading, workspace, or step access Â
Spray-on bedliner for long-lasting cargo protection in harsh conditions Â
120V bed-mounted power outlet for jobsite or adventure power needs Â
Power sunroof adding openness and natural light to the premium cabin experience Â
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The 2026 GMC Sierra 1500 AT4X is engineered for drivers who demand uncompromising off-road performance without sacrificing luxury or technology. From its advanced locking differentials and AEV-grade protection to its massage seats and cutting-edge digital displays, it delivers a rare balance of extreme capability and refined comfort, built to dominate trails, highways, and everything in between.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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Wheels, 18" x 8.5" (45.7 cm x 21.6 cm) Gloss Black painted full-size, spare Aluminum
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Wheelhouse liners, rear
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Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
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Generic Sun/Moonroof
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Sun/Moonroof
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Front Bumper, AEV Stamped-steel high approach Front Bumper with heavy duty cast recovery points
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Bumper, rear body-colour with corner steps (Bumper colour is High Gloss Black on AT4X.)
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CornerStep, rear bumper (Not included with (ULV) AT4X AEV Edition.)
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Grille (Gloss Black header with Dark Nickel 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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Rear Defrost
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Sliding Rear Window
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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 (Gloss Black with (ULV) AT4X AEV Edition.)
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Bed Liner
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Premium Sound System
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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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Seat-Massage
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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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Leather Steering Wheel
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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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Heads-Up 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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Universal Garage Door Opener
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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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Back-Up Camera
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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, 7300 lbs. (3311 kg) (Requires (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) (Includes Terrain mode.)
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Suspension, Off Road with 2" factory installed lift and Multimatic DSSV dampers (Not available with 22" LPO wheels and tires.)
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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 Tire Pressure Monitor Sensors includes set of 4 sensors. Sensor functionality requires (UET) In-Vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories
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Trailer brake controller, integrated
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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 (No exposed chrome tips in bumper. Only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 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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Bed View Camera camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen, includes Two Trailer Camera Provisions (Includes Trailer View Camera Provisions and Trailer Assist Guidelines.)
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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)39.88
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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)3950
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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)7300
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Gross Combined Wt Rating (lbs)15000
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EnerGuide Estimate - City (L/100 km)12.2
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EnerGuide Estimate - Hwy (L/100 km)12.0
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G/km Of CO2 Emissions326
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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)8500
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Wt Distributing Hitch - Max Tongue Wt. (lbs)850
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)5200
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)1300
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Maximum Trailering Capacity (lbs)8700
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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)3950
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Spring Capacity - Rear (lbs)3850
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Axle Capacity - Front (lbs)3950
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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 CodeQFL
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Rear Tire Order CodeQFL
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Spare Tire Order CodeRHF
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Front Tire SizeLT275/70R18
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Rear Tire SizeLT275/70R18
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Spare Tire SizeLT275/70R18
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Front Tire Capacity (lbs)3800
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Rear Tire Capacity (lbs)4150
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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)18 x 8.5
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Front Wheel MaterialAluminum
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Rear Wheel MaterialAluminum
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Spare Wheel MaterialAluminum
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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)233.96
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Width, Max w/o mirrors (in)81.23
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Height, Overall (in)78.65
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Ground Clearance, Front (in)11.5
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Ground Clearance, Rear (in)11.5
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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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