2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
COASTAL DUNE
4WD
Diesel
3 Miles
Jet Black w/Kalahari Accents
B138408
1GT4UPEY9TF138408
2500
Leather
AT4
Estimated Payment
$0 / month
About This 2026 GMC Sierra
Vehicle Details
Discover the power and capability of this 2026 GMC Sierra 2500 AT4 4WD with the legendary V8 6.6L Diesel—now available in Livingston, TX. Built for drivers who demand rugged performance and refined comfort, this GMC Sierra 2500 AT4 delivers exceptional towing capacity, diesel torque, and confidence on every road and trail. Whether hauling heavy loads or exploring off-road routes, the advanced 4WD system and durable suspension keep you in command. Inside, enjoy a tech-forward cabin designed for convenience and connectivity. Steering wheel audio controls, Apple CarPlay, Android Auto, and hands-free Bluetooth make staying connected and entertained effortless, while Adaptive Cruise Control enhances long-haul comfort and safety. Premium seating, intuitive controls, and smart storage solutions provide a commanding, comfortable driving experience. This GMC Sierra 2500 AT4 combines work-ready capability with on-road refinement—powerful diesel performance, impressive towing, and off-road-ready features packaged in a bold, capable truck. Located in Livingston, TX, this vehicle is competitively priced and represents the best price for a diesel-powered 2026 GMC Sierra 2500 AT4 in the area. Don't miss your chance to own a versatile heavy-duty truck with modern tech and serious capability. Contact us to schedule a test drive in Livingston, TX, and experience the unmatched blend of diesel power, advanced features, and value that this GMC Sierra 2500 AT4 offers.
Equipment
Never get into a cold vehicle again with the remote start feature on the GMC Sierra. It's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. The leather seats in this unit are a must for buyers looking for comfort, durability, and style. Protect this 3/4 ton pickup from unwanted accidents with a cutting edge backup camera system. The vehicle features steering wheel audio controls. Keep your hands warm all winter with a heated steering wheel in this 2026 GMC Sierra 2500 . It offers Android Auto for seamless smartphone integration. An off-road package is installed on the vehicle so you are ready for your four-wheeling best. This unit features a high end BOSE stereo system. The GMC Sierra warns of approaching vehicles with Cross-Traffic Alert. This model is equipped with the latest generation of XM/Sirius Radio. Bluetooth technology is built into the vehicle, keeping your hands on the steering wheel and your focus on the road.
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. Coastal Dune. 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.**
Discover the power and capability of this 2026 GMC Sierra 2500 AT4 4WD with the legendary V8 6.6L Diesel—now available in Livingston, TX. Built for drivers who demand rugged performance and refined comfort, this GMC Sierra 2500 AT4 delivers exceptional towing capacity, diesel torque, and confidence on every road and trail. Whether hauling heavy loads or exploring off-road routes, the advanced 4WD system and durable suspension keep you in command. Inside, enjoy a tech-forward cabin designed for convenience and connectivity. Steering wheel audio controls, Apple CarPlay, Android Auto, and hands-free Bluetooth make staying connected and entertained effortless, while Adaptive Cruise Control enhances long-haul comfort and safety. Premium seating, intuitive controls, and smart storage solutions provide a commanding, comfortable driving experience. This GMC Sierra 2500 AT4 combines work-ready capability with on-road refinement—powerful diesel performance, impressive towing, and off-road-ready features packaged in a bold, capable truck. Located in Livingston, TX, this vehicle is competitively priced and represents the best price for a diesel-powered 2026 GMC Sierra 2500 AT4 in the area. Don't miss your chance to own a versatile heavy-duty truck with modern tech and serious capability. Contact us to schedule a test drive in Livingston, TX, and experience the unmatched blend of diesel power, advanced features, and value that this GMC Sierra 2500 AT4 offers.
Equipment
Never get into a cold vehicle again with the remote start feature on the GMC Sierra. It's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. The leather seats in this unit are a must for buyers looking for comfort, durability, and style. Protect this 3/4 ton pickup from unwanted accidents with a cutting edge backup camera system. The vehicle features steering wheel audio controls. Keep your hands warm all winter with a heated steering wheel in this 2026 GMC Sierra 2500 . It offers Android Auto for seamless smartphone integration. An off-road package is installed on the vehicle so you are ready for your four-wheeling best. This unit features a high end BOSE stereo system. The GMC Sierra warns of approaching vehicles with Cross-Traffic Alert. This model is equipped with the latest generation of XM/Sirius Radio. Bluetooth technology is built into the vehicle, keeping your hands on the steering wheel and your focus on the road.
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. Coastal Dune. 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; 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
- Coastal Dune
- Hitch Package
- 1st and 2nd Rows All-Weather Floor Liners
- LED Smoked Amber Roof Marker Lamps
- 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
- 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
- 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
- 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 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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