2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
COASTAL DUNE
4WD
Diesel
2 Miles
Jet Black w/Kalahari Accents
B256630
1GT4UPEY8TF256630
2500
Leather
AT4
Estimated Payment
$0 / month
About This 2026 GMC Sierra
Vehicle Details
2026 GMC Sierra 2500 AT4 4WD with the legendary 6.6L V8 diesel - built for serious work, serious comfort, and serious adventure. Located in Livingston, TX, this rugged powerhouse combines torque-rich diesel performance with premium AT4 off-road capability to conquer job sites, trails, and long highway hauls with confidence. Under the hood, the V8 6.6L diesel delivers massive low-end torque for towing and hauling, while 4WD and the Off-Road Package provide upgraded suspension, skid plates, and terrain-ready hardware for confident exploration off the beaten path. Inside, a refined cabin welcomes drivers with a heated steering wheel for chilly mornings and a BOSE stereo system that turns commutes into concert-like experiences. Safety and convenience features include a Back-Up Camera for precise maneuvering, and Adaptive Cruise Control that helps reduce driver fatigue on long drives. The AT4 trim blends rugged exterior styling with comfort-focused appointments, making this GMC Sierra 2500 equally at home on ranch roads and corporate parking lots. This 2026 GMC Sierra 2500 AT4 is a terrific pick for Texas drivers seeking diesel towing capability, modern tech, and off-road readiness in one commanding truck. Located in Livingston, TX, it's ready for test drives and demo runs - experience diesel performance, premium comfort, and true 4WD capability firsthand. Contact us to schedule a viewing and see why this GMC Sierra 2500 stands out in its class.
Equipment
The leather seats in it are a must for buyers looking for comfort, durability, and style. This 2026 GMC Sierra 2500 features steering wheel audio controls. It offers Android Auto for seamless smartphone integration. See what's behind you with the back up camera on the vehicle. This 2026 GMC Sierra 2500's Lane Departure Warning helps keep you in your lane. Never get into a cold vehicle again with the remote start feature on this 3/4 ton pickup. This 3/4 ton pickup has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. An off-road package is equipped on this unit. The vehicle offers Apple CarPlay for seamless connectivity. Keep your hands warm all winter with a heated steering wheel in the GMC Sierra . This 3/4 ton pickup features a hands-free Bluetooth phone system. This GMC Sierra is equipped with the latest generation of XM/Sirius Radio.
Packages
Preferred Equipment Group 4SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Floor-Mounted Center Console; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Rear Premium Floor Liners with Removable Carpet Insert; 2 Charge-Only Rear USB Ports; OnStar Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; Bose Premium 7-Speaker Sound System; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Rear Wheelhouse Liners. AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote. Black Badging Package: Black Sierra Nameplates; Black GMC Emblems. Power-Retractable Black Assist Steps. Technology Package. Gooseneck/5th Wheel Prep Package. Black Lug Nut & Wheel Lock Kit. Coastal Dune. Hitch Package. Rear Underseat Storage. 1st and 2nd Rows All-Weather Floor Liners. LED Smoked Amber Roof Marker Lamps. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
2026 GMC Sierra 2500 AT4 4WD with the legendary 6.6L V8 diesel - built for serious work, serious comfort, and serious adventure. Located in Livingston, TX, this rugged powerhouse combines torque-rich diesel performance with premium AT4 off-road capability to conquer job sites, trails, and long highway hauls with confidence. Under the hood, the V8 6.6L diesel delivers massive low-end torque for towing and hauling, while 4WD and the Off-Road Package provide upgraded suspension, skid plates, and terrain-ready hardware for confident exploration off the beaten path. Inside, a refined cabin welcomes drivers with a heated steering wheel for chilly mornings and a BOSE stereo system that turns commutes into concert-like experiences. Safety and convenience features include a Back-Up Camera for precise maneuvering, and Adaptive Cruise Control that helps reduce driver fatigue on long drives. The AT4 trim blends rugged exterior styling with comfort-focused appointments, making this GMC Sierra 2500 equally at home on ranch roads and corporate parking lots. This 2026 GMC Sierra 2500 AT4 is a terrific pick for Texas drivers seeking diesel towing capability, modern tech, and off-road readiness in one commanding truck. Located in Livingston, TX, it's ready for test drives and demo runs - experience diesel performance, premium comfort, and true 4WD capability firsthand. Contact us to schedule a viewing and see why this GMC Sierra 2500 stands out in its class.
Equipment
The leather seats in it are a must for buyers looking for comfort, durability, and style. This 2026 GMC Sierra 2500 features steering wheel audio controls. It offers Android Auto for seamless smartphone integration. See what's behind you with the back up camera on the vehicle. This 2026 GMC Sierra 2500's Lane Departure Warning helps keep you in your lane. Never get into a cold vehicle again with the remote start feature on this 3/4 ton pickup. This 3/4 ton pickup has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. An off-road package is equipped on this unit. The vehicle offers Apple CarPlay for seamless connectivity. Keep your hands warm all winter with a heated steering wheel in the GMC Sierra . This 3/4 ton pickup features a hands-free Bluetooth phone system. This GMC Sierra is equipped with the latest generation of XM/Sirius Radio.
Packages
Preferred Equipment Group 4SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Floor-Mounted Center Console; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Rear Premium Floor Liners with Removable Carpet Insert; 2 Charge-Only Rear USB Ports; OnStar Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; Bose Premium 7-Speaker Sound System; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Rear Wheelhouse Liners. AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote. Black Badging Package: Black Sierra Nameplates; Black GMC Emblems. Power-Retractable Black Assist Steps. Technology Package. Gooseneck/5th Wheel Prep Package. Black Lug Nut & Wheel Lock Kit. Coastal Dune. Hitch Package. Rear Underseat Storage. 1st and 2nd Rows All-Weather Floor Liners. LED Smoked Amber Roof Marker Lamps. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
Features & Options
- Preferred Equipment Group 4SB: LED Cargo Area Lighting; Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Remote Vehicle Starter System; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Floor-Mounted Center Console; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Bed View Camera with Two Trailer Camera Provisions; Front Rain-Sensing Wipers; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 120-Volt Instrument Panel Power Outlet; 2 Charge/data USB Ports Inside Center Console; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Rear Premium Floor Liners with Removable Carpet Insert; 2 Charge-Only Rear USB Ports; OnStar Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; Bose Premium 7-Speaker Sound System; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Keyless Open and Start; ProGrade Trailering System; Push Button Start; Rear Wheelhouse Liners
- AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote
- Black Badging Package: Black Sierra Nameplates; Black GMC Emblems
- Power-Retractable Black Assist Steps
- Technology Package
- Gooseneck/5th Wheel Prep Package
- Black Lug Nut & Wheel Lock Kit
- Coastal Dune
- Hitch Package
- Rear Underseat Storage
- 1st and 2nd Rows All-Weather Floor Liners
- LED Smoked Amber Roof Marker Lamps
- Apple CarPlay/Android Auto smart device wireless mirroring
- Wi-Fi Hotspot capable mobile hotspot internet access
- Forward Collision Alert with Automatic Braking
- Front Pedestrian Braking
- HD Rear Vision Camera w/Hitch View rear mounted camera
- Head-up display
- Automatic Emergency Braking predictive brake assist system
- Lane Departure Warning
- Rear Cross-Traffic Alert collision warning
- Teen Driver restricted driving mode/alerts
- HD Surround Vision w/Hitch View aerial view camera
- Video-feed rearview mirror
- Stolen Vehicle Assistance vehicle tracker with vehicle slowdown
- 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
- Auto high-beam headlights
- Immobilizer
- Adaptive cruise control
- Cruise control with steering wheel mounted controls
- Keyfob remote start
- Front wireless smart device charging
- Google Built-In built-in virtual assistant
- Keyless Open/Keyless Start with hands-free access and push button start
- Keyfob window control
- Smart device remote start
- Push-button
- GCW Alert weight capacity alert
- Full gauge cluster screen
- Ventilated driver and front passenger seats
- Heated steering wheel
- Heated driver and front passenger seats
- Heated rear seats
- Leather front seat upholstery
- Driver seat power reclining
- lumbar support
- cushion tilt
- fore/aft control and height adjustable control
- Dual-zone front climate control
- Primary monitor touchscreen
- Bluetooth wireless audio streaming
- Bose speakers
- 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
- Hitch Guidance vehicle to trailer hitching assist
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
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