2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
ONYX BLACK
4WD
Diesel
0 Miles
Jet Black w/Kalahari Accents
B138230
1GT4UPEY5TF138230
2500
Leather
AT4
Estimated Payment
$0 / month
About This 2026 GMC Sierra
Vehicle Details
2026 GMC Sierra 2500 AT4 4WD with V8 6.6L Diesel — located in Livingston, TX — is the heavy-duty truck built for capability, comfort, and confidence. Combining a powerful 6.6L V8 diesel with four-wheel drive, this GMC Sierra AT4 delivers exceptional towing and hauling performance while maintaining refined on-road manners. With aggressive suspension tuning, skid plates, and off-road-ready features, the AT4 is ready for worksite duty or weekend adventure. Step inside and enjoy premium touches like a heated steering wheel, remote start, and a BOSE stereo system that elevates every drive. Seamless smartphone integration is provided via Apple CarPlay, keeping navigation, music, and calls conveniently accessible. Advanced safety features such as Lane Departure Warning help protect you and your passengers on long hauls or busy highway drives. This GMC Sierra 2500 AT4 balances rugged capability with modern convenience: durable cargo solutions, intelligent trailering tech, and spacious, comfortable seating for crew-cab versatility. Whether towing heavy trailers or navigating rural backroads outside Livingston, TX, the V8 diesel's torque and reliability make short work of demanding jobs. Priced to move, this GMC Sierra 2500 AT4 represents the best price available — exceptional value on a premium 4WD diesel truck. If you want a powerful, feature-rich heavy-duty pickup with off-road confidence and premium amenities, this 2026 GMC Sierra 2500 AT4 in Livingston, TX is the smart choice. Act now to secure this standout deal.
Equipment
An off-road package is installed on this unit so you are ready for your four-wheeling best. Protect the vehicle from unwanted accidents with a cutting edge backup camera system. Start this vehicle from inside with remote start. This vehicle warns of approaching vehicles with Cross-Traffic Alert. It offers Android Auto for seamless smartphone integration. This 3/4 ton pickup features steering wheel audio controls. This vehicle features a hands-free Bluetooth phone system. Apple CarPlay: Seamless smartphone integration for the vehicle - stay connected and entertained on the go! The leather seats in this 2026 GMC Sierra 2500 are a must for buyers looking for comfort, durability, and style. This 2026 GMC Sierra 2500 is pure luxury with a heated steering wheel. The vehicle has auto-adjust speed for safe following. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this vehicle. Anywhere on the planet, you will have hundreds of digital stations to choose from.
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; 6.6L V8 with Direct Injection and Variable Valve Timing Engine; 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. Onyx Black. Hitch Package. 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 V8 6.6L Diesel — located in Livingston, TX — is the heavy-duty truck built for capability, comfort, and confidence. Combining a powerful 6.6L V8 diesel with four-wheel drive, this GMC Sierra AT4 delivers exceptional towing and hauling performance while maintaining refined on-road manners. With aggressive suspension tuning, skid plates, and off-road-ready features, the AT4 is ready for worksite duty or weekend adventure. Step inside and enjoy premium touches like a heated steering wheel, remote start, and a BOSE stereo system that elevates every drive. Seamless smartphone integration is provided via Apple CarPlay, keeping navigation, music, and calls conveniently accessible. Advanced safety features such as Lane Departure Warning help protect you and your passengers on long hauls or busy highway drives. This GMC Sierra 2500 AT4 balances rugged capability with modern convenience: durable cargo solutions, intelligent trailering tech, and spacious, comfortable seating for crew-cab versatility. Whether towing heavy trailers or navigating rural backroads outside Livingston, TX, the V8 diesel's torque and reliability make short work of demanding jobs. Priced to move, this GMC Sierra 2500 AT4 represents the best price available — exceptional value on a premium 4WD diesel truck. If you want a powerful, feature-rich heavy-duty pickup with off-road confidence and premium amenities, this 2026 GMC Sierra 2500 AT4 in Livingston, TX is the smart choice. Act now to secure this standout deal.
Equipment
An off-road package is installed on this unit so you are ready for your four-wheeling best. Protect the vehicle from unwanted accidents with a cutting edge backup camera system. Start this vehicle from inside with remote start. This vehicle warns of approaching vehicles with Cross-Traffic Alert. It offers Android Auto for seamless smartphone integration. This 3/4 ton pickup features steering wheel audio controls. This vehicle features a hands-free Bluetooth phone system. Apple CarPlay: Seamless smartphone integration for the vehicle - stay connected and entertained on the go! The leather seats in this 2026 GMC Sierra 2500 are a must for buyers looking for comfort, durability, and style. This 2026 GMC Sierra 2500 is pure luxury with a heated steering wheel. The vehicle has auto-adjust speed for safe following. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this vehicle. Anywhere on the planet, you will have hundreds of digital stations to choose from.
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; 6.6L V8 with Direct Injection and Variable Valve Timing Engine; 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. Onyx Black. Hitch Package. 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; 6.6L V8 with Direct Injection and Variable Valve Timing Engine; 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
- Onyx Black
- Hitch Package
- 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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