2026 GMC Sierra 1500 AT4X

Engine Type: 3.0L Duramax Turbo-Diesel I6 std / 6.2L V8 opt.*

Displacement: 2,996 cc / 6,162 cc*

Max Power: 305 hp (Diesel) / 420 hp (6.2L V8)*

Max Torque: 495 lb-ft (Diesel) / 460 lb-ft (6.2L)*

No. of Cylinders: 6 or 8*

Valves Per Cylinder: 4*

Fuel Supply System: Common Rail DI (Diesel) / DFM (V8)*

Turbo Charger: ✅* (Diesel std) / ❌ (V8 opt.)

Transmission Type: Automatic*

Gearbox: 10-Speed Automatic*

Drive Type: 4WD std (Autotrac 2-speed transfer case)*

Cab Style: Crew Cab only*

Bed Length Options: Short Bed 5.8 ft only*

Bed Length — This Config (ft/in): Short: 69.9 in*

Bed Width — Floor Max (in): 71.4 in*

Bed Width — Between Wheelhouses (in): 50.6 in*

Bed Depth (in): 22.0 in*

Bed Material: High-Strength Steel (EZ-Lift & Lower tailgate)*

Payload Capacity: Up to 1,700 lbs / 771 kg*

Max Towing Capacity: Up to 13,300 lbs / 6,033 kg (Duramax std)*

Towing Configuration: Conventional / 5th Wheel / Gooseneck opt.*

Tongue Weight Rating: Up to 1,330 lbs*

Integrated Trailer Brake Controller: ✅*

Trailer Sway Control: ✅* (standard all trims)

Tow/Haul Mode: ✅* (standard all trims)

Max Engine Options Available: 3.0L Duramax Diesel std / 6.2L V8 opt.*

Additional Features — Truck Capability: EZ-Lift & Lower tailgate, CornerStep rear bumper, 12 fixed cargo tie-downs, spray-on bedliner std, GMC MultiPro Tailgate opt., 2-in factory lift, Multimatic DSSV dampers, AEV stamped steel front bumper w/ winch capability, AEV boron steel approach skid plate, full underbody protection, electronic front & rear locking differentials std (class-exclusive), Autotrac 2-speed transfer case, 18-in painted alloy wheels w/ 33-in Goodyear Wrangler Territory MT tires std, Hill Descent Control std, In-Vehicle Trailering App, trailer side blind zone alert std, up to 14 camera views opt., AT4X AEV Edition pkg opt.*

Fuel Type: Regular Unleaded*

MPG: 20 City / 26 Hwy / 23 Combined (Duramax Diesel)* / 14/18/16 (6.2L V8)*

Fuel Tank Capacity: 24.0 gal / 90.9 L std / 33.0 gal opt.*

Top Speed: N/A (not published)

Front Suspension: Independent SLA w/ Multimatic DSSV Dampers, 2-in Lift*

Rear Suspension: Multi-Link, Leaf Spring w/ Multimatic DSSV Dampers*

Shock Absorbers Type: Multimatic DSSV (spool-valve dampers)*

Steering Type: Rack-and-Pinion, Electric Power Assist*

Steering Column: Tilt & Telescoping*

Front Brake Type: Ventilated Disc*

Rear Brake Type: Ventilated Disc*

Braking (60-0 mph): N/A

0-60 mph (Tested): 6.5 sec (est. 6.2L V8)*

Wheel Size: 18-in*

Wheel Type: 18-in Painted Alloy w/ Dark Painted Pockets (33-in MT tires std)*

Length (ft/mm): ~18.9 ft / 5,764 mm (Crew Cab short bed)*

Width (ft/mm): 6.8 ft / 2,061 mm*

Height (ft/mm): 6.4 ft / 1,956 mm (w/ 2-in lift)*

Boot Space (litres): Short: 1,781 L / 62.9 cu ft*

Seating Capacity: 5*

Wheel Base (ft/mm): ~11.4 ft / 3,480 mm*

No. of Doors: 4*

Power Steering: ✅*

Air Conditioner: ✅* (dual-zone automatic climate control)

Heater: ✅*

Adjustable Steering: ✅*

Height Adjustable Driver Seat: ✅* (16-way power heated/ventilated w/ massage)

Automatic Climate Control: ✅*

Adaptive Cruise Control: ✅* (std)*

Height Adjustable Front Seat Belts: ✅*

Rear AC Vents: ✅* (Double/Crew Cab)*

Cruise Control: ✅*

Parking Sensors: ✅* (front & rear)*

Keyless Entry: ✅*

Central Console Armrest: ✅*

Gear Shift Indicator: ✅*

Lane Change Indicator: ✅*

Follow Me Home Headlamps: ✅*

Additional Features - Comfort: Dual-zone auto climate, 16-way power heated/ventilated massaging front seats, perforated leather seating, Jet Black interior w/ ceramic white/red stitching, Multimatic DSSV dampers, AEV bumper & skid plate, electronic front & rear locking diffs, 33-in MT tires, Hill Descent Control, wireless phone charging, Keyless Open & Start, 4G LTE Wi-Fi hotspot, adaptive cruise std, front & rear parking sensors std, automatic stop/start, full GMC Pro Safety+ suite std*

Tachometer: ✅* (13.4-in touchscreen / 12.3-in driver display)*

Leather Wrapped Steering Wheel: ✅* (heated leather)*

Glove Box: ✅* (dual lockable glove boxes)*

Additional Features - Interior: Perforated leather seating w/ ceramic white and red stitching, 13.4-in Premium Infotainment w/ Google built-in, 12.3-in digital DIC, wireless CarPlay/Android Auto, USB ports, dual-zone auto climate, 16-way heated/ventilated massaging front seats, wireless charging, SiriusXM, off-road gauge display, terrain mode selector, AT4X-exclusive interior trim, Bose 12-speaker std, 15-in HUD std, OnStar, full GMC Pro Safety Plus*

Upholstery: Perforated Leather-Appointed (Jet Black w/ ceramic white/red stitching)*

Adjustable Headlamps: ✅* (LED projector w/ IntelliBeam)*

Rear Window Wiper: N/A (open pickup bed)*

Rear Window Washer: N/A (pickup truck)*

Rear Window Defogger: ✅* (rear cab window)*

Alloy Wheels: ✅* (18-in painted w/ dark pockets)*

Rear Spoiler: N/A (pickup truck)

Side Stepper: ❌ (opt.)*

Outside Rear View Mirror Turn Indicators: ✅*

Integrated Antenna: ✅*

Chrome Grille: ❌ (dark AT4X-specific grille)*

Projector Headlamps: ✅* (LED projector)*

Fog Lights: ✅* (LED)*

Sunroof: ❌ (opt.)*

Boot Opening: EZ-Lift & Lower Tailgate / GMC MultiPro opt.*

Tyre Size: LT285/70R18 (33-in MT)*

Tyre Type: Mud-Terrain (Goodyear Wrangler Territory)*

LED DRLs: ✅*

LED Headlamps: ✅*

LED Taillights: ✅*

Additional Features - Exterior: Dark AT4X grille, 18-in painted alloy w/ dark pockets, 33-in Goodyear MT tires std, AEV steel front bumper, full underbody skid plate protection, 2-in lift, LED projector headlamps, LED taillamps, LED fog lamps, power-folding heated mirrors, spray-on bedliner std, MultiPro Tailgate opt.*

ABS: ✅*

Central Locking: ✅*

Anti-Theft Alarm: ✅*

No. of Airbags: 6*

Driver Airbag: ✅*

Passenger Airbag: ✅*

Side Airbag: ✅*

Side Airbag-Rear: ✅* (side curtain all rows)*

Safety Rating: IIHS Top Safety Pick (current gen)*

Day & Night Rear View Mirror: ✅*

EBD: ✅*

Seat Belt Warning: ✅*

Door Ajar Warning: ✅*

Engine Immobilizer: ✅*

Speed Alert: ✅*

Speed Sensing Auto Door Lock: ✅*

Additional Features - Safety: GMC Pro Safety Plus std: FCA, AEB, Front Pedestrian Braking, Following Distance Indicator, Lane Keep Assist, IntelliBeam, rear vision camera, Rear Cross-Traffic Alert, Blind Zone Steering Assist, Lane Change Alert, Side Blind Zone Alert, Hill Descent Control std, electronic front & rear locking diffs std, adaptive cruise control std, front & rear parking sensors std, 15-in HUD std, Surround Vision opt., Teen Driver, OnStar Emergency SOS*

Radio: AM/FM/HD Radio, SiriusXM trial*

Infotainment Screen Size: 13.4-inch*

Touchscreen: ✅*

Touchscreen Size: 13.4-inch*

USB Ports: 4x USB*

Tweeters: ✅* (Bose 12-speaker std)*

Speakers: Bose 12*

Additional Features - Entertainment: 13.4-in Premium GMC Infotainment w/ Google built-in, 12.3-in digital DIC, wireless Apple CarPlay, wireless Android Auto, Bluetooth, AM/FM/HD/SiriusXM trial, 4x USB, 4G LTE Wi-Fi hotspot, Bose 12-speaker premium audio std, off-road app display, 15-in HUD std, In-Vehicle Trailering App, OnStar, myGMC app*

Max Towing Capacity: Up to 13,300 lbs / 6,033 kg (Duramax std)*

Ground Clearance: 11.2 in / 284 mm (w/ 2-in lift)*