2026 GMC Sierra AT4

$  (Price Unknown)

Tilleman Motor Co - GMC-CHEVROLET-CDJR
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GMC Sierra Details

transmission
Automatic
engine
V8, 6.6L
color
COASTAL DUNE
drive
4WD
fuel
Diesel
mileage
0 Miles
interior color
Jet Black w/Kalahari Accents
stock number
NT244267
VIN
1GT4UVEY4TF244267
series
3500
seats
Leather
trim
AT4

About This 2026 GMC Sierra

Vehicle Details
2026 GMC Sierra 3500 AT4 4WD with the potent V8 6.6L Duramax diesel—now available in Havre, MT. Engineered for heavy-duty capability and comfort, this GMC Sierra 3500 AT4 pairs serious towing and payload performance with refined interior features suited for long hauls and tough jobs. The robust diesel V8 delivers torque-rich power, while the four-wheel drive system ensures confident traction across Montana terrain. Inside, experience premium amenities including a heated steering wheel for cold mornings, a BOSE stereo that fills the cabin with crisp audio, and convenient remote start to warm up or cool down the cabin before you climb in. Safety and technology are elevated with adaptive cruise control for relaxed highway driving and a back-up camera that enhances visibility when maneuvering a trailer or tight jobsite spaces. This GMC Sierra AT4 strikes a balance between rugged capability and driver-focused luxury—featuring durable exterior styling, advanced towing tech, and interior comfort that keeps workdays productive. Whether you're hauling heavy loads, navigating gravel roads, or commuting across Montana, this truck is built to perform. Located in Havre, MT, this 2026 GMC Sierra 3500 AT4 is competitively priced and represents the best value available in the area. Contact us to schedule a test drive and see why this GMC Sierra stands out as the top choice for serious truck buyers.

Equipment
The GMC Sierra has auto-adjust speed for safe following. The leather seats in this 2026 GMC Sierra 3500 are a must for buyers looking for comfort, durability, and style. This unit features a high end BOSE stereo system. The vehicle's Lane Departure Warning helps keep you in your lane. Start this model from inside with remote start. See what's behind you with the back up camera on this 2026 GMC Sierra 3500. The vehicle is pure luxury with a heated steering wheel. Set the temperature exactly where you are most comfortable in the vehicle. The fan speed and temperature will automatically adjust to maintain your preferred zone climate. Keep safely connected while in it with OnStar. You may enjoy services like Automatic Crash Response, Navigation, Roadside Assistance and Hands-Free Calling. This model has a V8, 6.6L high output engine. Greater towing safety becomes standard with the installed trailer brake. This vehicle is painted with a durable multi-coat tan finish.

Additional Information
**Vehicle Options listed are when the unit was originally built. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.

Features & Options

  • Forward collision mitigation with pedestrian impact prevention
  • Pedestrian impact prevention
  • Mobile hotspot internet access
  • Rear mounted camera
  • Adaptive cruise control
  • Automatic Emergency Braking predictive brake assist system
  • Cruise control with steering wheel mounted controls
  • Ventilated driver and front passenger seats
  • Keyfob remote start
  • Heated steering wheel
  • Heated driver and front passenger seats
  • Heated rear seats
  • Leather front seat upholstery
  • Primary monitor touchscreen
  • Lane departure warning
  • Rear collision warning
  • Driver seat power reclining
  • lumbar support
  • cushion tilt
  • fore/aft control and height adjustable control
  • AutoTrac part and full-time 4WD
  • Duramax 6.6L V-8 diesel direct injection
  • intercooled turbo
  • diesel
  • engine with 470HP
  • Duramax 6.6L V-8
  • Front wireless smart device charging
  • Built-in virtual assistant
  • Teen Driver restricted driving mode/alerts
  • Keyless Open/Keyless Start with hands-free access and push button start
  • Keyfob window control
  • Aerial view camera
  • Smart device remote start
  • Push-button
  • Weight capacity alert
  • Wireless audio streaming
  • Hitch Guidance with Hitch View vehicle to trailer hitching assist
  • Gauge cluster display size: 12.30
  • Front mounted camera with washer
  • Right side camera
  • Pickup box camera
  • Left side camera
  • Blind spot warning
  • Following distance alert
  • Trailer light test
  • Trailer light malfunction warning
  • Trailer theft alarm
  • Dual-zone front climate control
  • Full gauge cluster screen
  • Auto high-beam headlights
  • Immobilizer
  • Bose speakers
  • OnStar Services capable vehicle integrated emergency SOS system
  • Handsfree wireless device connectivity
  • Smart device wireless mirroring
  • Trailer brake controller
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