2026 GMC Sierra AT4

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Courtesy Chevrolet Buick GMC Breaux Bridge
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GMC Sierra Details

transmission
Automatic
engine
V8, 6.6L
color
Summit White
drive
4WD
fuel
Gasoline
mileage
0 Miles
interior color
Jet Black w/Kalahari Accents
stock number
26GB4889
VIN
1GT4UPE77TF212786
series
2500
seats
Leather
trim
AT4

About This 2026 GMC Sierra

Vehicle Details
Command the road with this 2026 GMC Sierra 2500 AT4 4WD, a rugged V8 powerhouse featuring a 6.6L gasoline engine built for heavy-duty performance and confident towing. Located in Breaux Bridge, LA, this GMC Sierra AT4 blends premium off-road capability with modern tech and safety to keep you connected and protected on every drive. The AT4's bold exterior and off-road-tuned suspension make it perfect for work sites, trails, or weekend getaways. Inside, enjoy a driver-focused cabin equipped with Apple CarPlay for seamless smartphone integration, plus a heated steering wheel for comfort during chilly mornings. Advanced safety features include Lane Departure Warning to help maintain lane position, Cross-Traffic Alert for safer backing maneuvers, and a Back-Up Camera that provides clear rear visibility when reversing or hitching trailers. Under the hood, the 6.6L V8 delivers robust low-end torque and dependable performance for towing heavy loads or powering through challenging terrain. The 4WD system enhances traction and stability when the road gets tough. Practical storage, durable trim, and intuitive controls make the GMC Sierra 2500 AT4 a smart choice for drivers who demand capability without sacrificing comfort. Located in Breaux Bridge, LA, this 2026 GMC Sierra 2500 AT4 4WD with a V8 6.6L gasoline engine is ready to elevate your driving and towing experience. Schedule a viewing today and feel the power and precision of this exceptional truck.

Equipment
This 2026 GMC Sierra 2500 has auto-adjust speed for safe following. The leather seats in the GMC Sierra are a must for buyers looking for comfort, durability, and style. It's Lane Departure Warning helps keep you in your lane. This 2026 GMC Sierra 2500 offers Apple CarPlay for seamless connectivity. This 2026 GMC Sierra 2500 is pure luxury with a heated steering wheel. Engulf yourself with the crystal clear sound of a BOSE sound system in the GMC Sierra. Bluetooth technology is built into this model, keeping your hands on the steering wheel and your focus on the road. Start this 2026 GMC Sierra 2500 from inside with remote start. This 3/4 ton pickup's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. This model comes equipped with Android Auto for seamless smartphone integration on the road. Protect it from unwanted accidents with a cutting edge backup camera system. This GMC Sierra shines with clean polished lines coated with an elegant white finish.

Features & Options

  • ALL-WEATHER FLOOR LINERS (DEALER INSTALLED)
  • 50-STATE EMISSIONS
  • REAR AXLE - 3.73 RATIO
  • GVWR; 10;850 LBS. (4921 KG)
  • ENGINE: 6.6L V8; GASOLINE
  • TRANS:ALLISON 10-SPEED AUTO
  • AT4 PREMIUM PLUS PREFERRED PACKAGE
  • CUSTOMER DIALOGUE NETWORK
  • WHEEL LOCKS; SET OF 4 (DEALER INSTALLED)
  • HITCH PACKAGE (DEALER INSTALLED)
  • GOOSENECK/5TH WHEEL PACKAGE:
  • AT4 PREMIUM PLUS PACKAGE DISCOUNT
  • DEALER IMR CONTRIBUTION
  • LMA GROUP CONTRIBUTION
  • Apple CarPlay/Android Auto smart device wireless mirroring
  • Forward Collision Alert with Automatic Braking
  • Front Pedestrian Braking
  • Wi-Fi Hotspot capable mobile hotspot internet access
  • HD Rear Vision Camera w/Hitch View 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 Cross-Traffic Alert collision warning
  • Driver seat power reclining
  • lumbar support
  • cushion tilt
  • fore/aft control and height adjustable control
  • AutoTrac part and full-time 4WD
  • 6.6L V-8 gasoline direct injection
  • variable valve control
  • regular unleaded
  • engine with 401HP
  • 6.6L V-8
  • Front wireless smart device charging
  • Google Built-In 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
  • HD Surround Vision w/Hitch View aerial view camera
  • Smart device remote start
  • Push-button
  • GCW Alert weight capacity alert
  • Stolen Vehicle Assistance vehicle tracker with vehicle slowdown
  • Bluetooth wireless audio streaming
  • Hitch Guidance 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
  • Trailer Side Blind Zone Alert blind spot warning
  • Following Distance Indicator
  • 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 vehicle integrated emergency SOS system
  • Bluetooth handsfree wireless device connectivity
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