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The 2026 GMC Sierra 2500HD AT4X is the ultimate heavy-duty off-road truck, combining exceptional towing capability with premium luxury and advanced trail-ready equipment. Available with the powerful Duramax 6.6L Turbo-Diesel V8 and Allison 10-speed automatic transmission, the AT4X delivers outstanding performance for hauling, towing, and tackling challenging terrain. Exclusive features such as Multimatic DSSV dampers, front and rear electronic locking differentials, skid plates, all-terrain tires, and a factory-installed lift provide impressive off-road capability right from the factory. Inside, the AT4X features an upscale cabin with full-grain leather seating, massaging front seats, a premium Bose audio system, a large GMC infotainment touchscreen with wireless Apple CarPlay and Android Auto, and advanced driver-assistance technologies. With its bold styling, premium amenities, and uncompromising capability, the 2026 GMC Sierra 2500HD AT4X is built for drivers who demand the very best on and off the road.

2026 GMC Sierra 2500

7 KM

Details Description Features

$142,461

+ taxes & licensing
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2026 GMC Sierra 2500

HD AT4X

Watch This Vehicle
14492182.826495662

2026 GMC Sierra 2500

HD AT4X

Location

Gauthier Cadillac GMC Buick

2400 McPhillips St, Winnipeg, MB R2V 4J6

877-884-1415

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$142,461

+ taxes & licensing

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New
7KM
VIN 1GT4UZEY8TF321231

Vehicle Details

  • Exterior Colour White
  • Body Style Pickup Truck
  • Fuel Type Diesel
  • Drive Type 4-Wheel Drive
  • Transmission Automatic
  • Mileage 7 KM

Vehicle Description

The 2026 GMC Sierra 2500HD AT4X is the ultimate heavy-duty off-road truck, combining exceptional towing capability with premium luxury and advanced trail-ready equipment. Available with the powerful Duramax 6.6L Turbo-Diesel V8 and Allison 10-speed automatic transmission, the AT4X delivers outstanding performance for hauling, towing, and tackling challenging terrain. Exclusive features such as Multimatic DSSV dampers, front and rear electronic locking differentials, skid plates, all-terrain tires, and a factory-installed lift provide impressive off-road capability right from the factory. Inside, the AT4X features an upscale cabin with full-grain leather seating, massaging front seats, a premium Bose audio system, a large GMC infotainment touchscreen with wireless Apple CarPlay and Android Auto, and advanced driver-assistance technologies. With its bold styling, premium amenities, and uncompromising capability, the 2026 GMC Sierra 2500HD AT4X is built for drivers who demand the very best on and off the road.

Vehicle Features

Safety

Driver Air Bag
Passenger Air Bag
Traction Control
Stability Control
ABS
Back-Up Camera
Tire Pressure Monitor
Passenger Air Bag On/Off Switch
Rear Head Air Bag
Rear Parking Aid
Lane Departure Warning
Front Side Air Bag
Front Head Air Bag
Passenger Air Bag Sensor
Blind Spot Monitor
Cross-Traffic Alert

Interior

Security System
Cruise Control
Keyless Entry
Bucket Seats
Power Door Locks
AM/FM Stereo
Adaptive Cruise Control
Leather Steering Wheel
Heated Steering Wheel
Steering Wheel Audio Controls
Universal Garage Door Opener
Remote Engine Start
Floor mats
Rear Bench Seat
Auto-Dimming Rearview Mirror
Keyless Start
WiFi Hotspot
Smart Device Integration

Exterior

Heated Mirrors
Daytime Running Lights
Aluminum Wheels
Tow Hooks
Sliding Rear Window
Rain Sensing Wipers
Privacy Glass
Fog Lamps
Tires - Front All-Season
Tires - Rear All-Season
Power Retractable Running Boards
Running Boards/Side Steps
Integrated Tailgate Step

Power Options

Power Windows
Power Passenger Seat
Power Mirror(s)

Mechanical

Power Steering
4-Wheel Disc Brakes
Four Wheel Drive

Seating

Leather Seats
Seat Memory
Pass-Through Rear Seat
Power Driver Seat
Driver Adjustable Lumbar
Passenger Adjustable Lumbar
Heated Front Seat(s)
Cooled Front Seat(s)

Media / Nav / Comm

Premium Sound System
Navigation System
Satellite Radio
Auxiliary Audio Input

Convenience

Intermittent Wipers
Tow Hitch
Variable Speed Intermittent Wipers
Mirror Memory

Windows

Rear Defrost

Comfort

Climate Control
A/C
Adjustable Steering Wheel
Multi-Zone A/C

Powertrain

Locking/Limited Slip Differential

Additional Features

Bed Liner
Heads-Up Display
Integrated Turn Signal Mirrors
Telematics
Power Folding Mirrors
MP3 Capability
High Idle Switch
Automatic Highbeams
Heated Rear Seat(s)
Conventional Spare Tire
Bluetooth Connection
Sun/Moonroof
Seat-Massage
Generic Sun/Moonroof
Driver Restriction Features
REAR AXLE 3.42 RATIO
Requires Subscription
GVWR 11 350 LBS. (5148 KG)
TRAILERING WIRING PROVISIONS for trailering 5th wheel and gooseneck trailer includes additional 7-way wiring harness located at the rear of the pickup bed attached to the rear frame cross member
UPFITTER SWITCH KIT (5) Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter...
TRANSMISSION 10-SPEED AUTOMATIC
LPO GMC MULTIPRO TAILGATE STEP LIGHTS (dealer-installed)
Front collision mitigation
Aerial View Display System
Front Collision Warning
ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
LPO AEV BRAND FLOOR LINERS
AT4X AEV EDITION Includes (VHU) Front and (VQH) Rear AEV Stamped Steel bumpers with heavy duty cast recovery points Gloss-black door handles and black tailgate accent (RBJ) 18 AEV Salta Black Gloss Aluminum Wheels (QNB) 18x 9 spare wheel (PZG) sta...
3 YEARS SIRIUS XM
LPO BLACK BADGING PACKAGE (dealer-installed) includes (SFZ) Black GMC emblems LPO and (RIK) Black Sierra Nameplates LPO.
ASSIST HANDLE SIDE (bed mounted
fold out grab handle for extra support)

Please contact the seller to confirm pricing, features, odometer, and availability of this vehicle.

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Gauthier Cadillac GMC Buick

2400 McPhillips St, Winnipeg, MB R2V 4J6

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877-884-XXXX

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877-884-1415

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$142,461

+ taxes & licensing>

Gauthier Cadillac GMC Buick

877-884-1415

2026 GMC Sierra 2500