2026 GMC Sierra AT4X
GMC Sierra Details
Automatic
V8, 6.6L
Sterling Metallic
4WD
Diesel
2 Miles
Obsidian Rush
26SERR71
1GT4UZEY9TF228444
2500
Leather
AT4X
Estimated Payment
$0 / month
About This 2026 GMC Sierra
Vehicle Details
2026 GMC Sierra 2500 AT4X 4WD — V8 6.6L Diesel — Tullahoma, TN Ready for heavy-duty performance and rugged luxury, this 2026 GMC Sierra 2500 AT4X delivers uncompromising capability with a potent V8 6.6L diesel and four-wheel drive. Built for towing, hauling, and extreme off-road adventures, the GMC Sierra AT4X combines best-in-class technology and premium comfort so you can work hard and ride in style. Key features include seamless smartphone integration with Android Auto, Adaptive Cruise Control for relaxed highway driving, and Cross-Traffic Alert to boost safety in crowded lots. The heated steering wheel keeps you comfortable on chilly Tennessee mornings, while the Off-Road Package maximizes ground clearance, suspension performance, and traction for rugged terrain. Located in Tullahoma, TN, this GMC Sierra 2500 AT4X is competitively priced — we guarantee the best price on this capability-packed truck. Whether you need maximum towing capacity, a durable diesel engine, or a well-appointed cabin for daily drives, this GMC checks every box. Act now to secure a top-tier heavy-duty truck with modern safety tech and off-road readiness. Contact us in Tullahoma, TN today to schedule a test drive and lock in the best price on this 2026 GMC Sierra 2500 AT4X.
Equipment
See what's behind you with the back up camera on it. This unit warns of approaching vehicles with Cross-Traffic Alert. This model offers Android Auto for seamless smartphone integration. An off-road package is installed on the GMC Sierra so you are ready for your four-wheeling best. This GMC Sierra is pure luxury with a heated steering wheel. This 2026 GMC Sierra 2500 offers Apple CarPlay for seamless connectivity. This vehicle features a hands-free Bluetooth phone system. The leather seats in the vehicle are a must for buyers looking for comfort, durability, and style. Never get into a cold vehicle again with the remote start feature on this unit. This model's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. This model has auto-adjust speed for safe following. Maintaining a stable interior temperature in this vehicle is easy with the climate control system. When you encounter slick or muddy roads, you can engage the four wheel drive on it and drive with confidence.
Additional Information
Pricing of vehicles on this web site does not include options that may have been installed at the Dealership. Pricing may include current promotions, incentives, and/or bonus cash. Pricing does not' include tax, title, license or $599.00 processing fee. Please contact the Dealership for the latest pricing and monthly payment. Published price subject to change without notice to correct errors or omissions or in the event of inventory fluctuations
2026 GMC Sierra 2500 AT4X 4WD — V8 6.6L Diesel — Tullahoma, TN Ready for heavy-duty performance and rugged luxury, this 2026 GMC Sierra 2500 AT4X delivers uncompromising capability with a potent V8 6.6L diesel and four-wheel drive. Built for towing, hauling, and extreme off-road adventures, the GMC Sierra AT4X combines best-in-class technology and premium comfort so you can work hard and ride in style. Key features include seamless smartphone integration with Android Auto, Adaptive Cruise Control for relaxed highway driving, and Cross-Traffic Alert to boost safety in crowded lots. The heated steering wheel keeps you comfortable on chilly Tennessee mornings, while the Off-Road Package maximizes ground clearance, suspension performance, and traction for rugged terrain. Located in Tullahoma, TN, this GMC Sierra 2500 AT4X is competitively priced — we guarantee the best price on this capability-packed truck. Whether you need maximum towing capacity, a durable diesel engine, or a well-appointed cabin for daily drives, this GMC checks every box. Act now to secure a top-tier heavy-duty truck with modern safety tech and off-road readiness. Contact us in Tullahoma, TN today to schedule a test drive and lock in the best price on this 2026 GMC Sierra 2500 AT4X.
Equipment
See what's behind you with the back up camera on it. This unit warns of approaching vehicles with Cross-Traffic Alert. This model offers Android Auto for seamless smartphone integration. An off-road package is installed on the GMC Sierra so you are ready for your four-wheeling best. This GMC Sierra is pure luxury with a heated steering wheel. This 2026 GMC Sierra 2500 offers Apple CarPlay for seamless connectivity. This vehicle features a hands-free Bluetooth phone system. The leather seats in the vehicle are a must for buyers looking for comfort, durability, and style. Never get into a cold vehicle again with the remote start feature on this unit. This model's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. This model has auto-adjust speed for safe following. Maintaining a stable interior temperature in this vehicle is easy with the climate control system. When you encounter slick or muddy roads, you can engage the four wheel drive on it and drive with confidence.
Additional Information
Pricing of vehicles on this web site does not include options that may have been installed at the Dealership. Pricing may include current promotions, incentives, and/or bonus cash. Pricing does not' include tax, title, license or $599.00 processing fee. Please contact the Dealership for the latest pricing and monthly payment. Published price subject to change without notice to correct errors or omissions or in the event of inventory fluctuations
Features & Options
- FE9
- GU6
- GXD
- JGL
- L5P
- MGM
- RFE
- Z6A
- 9L7
- 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
- Head-up display
- 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
- First-row sliding and tilting glass sunroof with express open/close activation sunshade
- Driver seat power reclining
- lumbar support
- seatback side bolster 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
- 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
- Video-feed rearview mirror
- 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 tire pressure sensors
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
- Dual-zone front climate control
- Off-road speed control
- Full gauge cluster screen
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