2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
Onyx Black
4WD
Diesel
6 Miles
Jet Black w/Kalahari Accents
22484
1GT4UPEY0TF236436
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 6.6L V8 diesel-now available in Ponca City, OK at the best price. Built for heavy-duty performance and refined comfort, this GMC Sierra 2500 AT4 delivers commanding towing and hauling ability while providing a confident, composed ride on every road and jobsite. Under the hood, the robust 6.6L V8 diesel pairs with advanced 4WD to tackle towing, off-road trails, and highway driving with trustworthy torque and efficiency. The AT4 trim elevates capability with rugged styling, enhanced suspension, and purpose-driven features for drivers who demand capability and comfort. Inside, this GMC Sierra blends functionality with convenience: Hands Free Bluetooth keeps you connected safely, Remote Start warms or cools the cabin before you climb in, and Adaptive Cruise Control maintains a smooth, stress-free highway experience. Safety-focused technologies include a Back-Up Camera for precise maneuvering and Lane Departure Warning to help keep you centered and alert. This 2026 GMC Sierra 2500 AT4 is perfectly suited for contractors, outdoor enthusiasts, and anyone who needs dependable diesel power combined with modern tech and driver assists. Located in Ponca City, OK, this truck is priced to sell and represents the best value in the area. Schedule a test drive today and experience the capability, comfort, and advanced features that make this GMC Sierra 2500 AT4 a standout choice.
Equipment
The vehicle comes equipped with Android Auto for seamless smartphone integration on the road. This model features a high end BOSE stereo system. The GMC Sierra features a hands-free Bluetooth phone system. Never get into a cold vehicle again with the remote start feature on the GMC Sierra. An off-road package is installed on this model so you are ready for your four-wheeling best. This model offers Apple CarPlay for seamless connectivity. It has auto-adjust speed for safe following. The leather seats in this model are a must for buyers looking for comfort, durability, and style. This unit's Lane Departure Warning helps keep you in your lane. See what's behind you with the back up camera on this 2026 GMC Sierra 2500. Keep your hands warm all winter with a heated steering wheel in this model . This vehicle is equipped with the latest generation of XM/Sirius Radio. This 3/4 ton pickup warns of approaching vehicles with Cross-Traffic Alert.
Packages
AT4 Premium Plus Package: Power Sunroof; Technology Package; Power-Retractable Black Assist Steps. 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. Power-Retractable Black Assist Steps. Technology Package. Power Sunroof. Gooseneck/5th Wheel Prep Package. Onyx Black. Hitch Package. 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 6.6L V8 diesel-now available in Ponca City, OK at the best price. Built for heavy-duty performance and refined comfort, this GMC Sierra 2500 AT4 delivers commanding towing and hauling ability while providing a confident, composed ride on every road and jobsite. Under the hood, the robust 6.6L V8 diesel pairs with advanced 4WD to tackle towing, off-road trails, and highway driving with trustworthy torque and efficiency. The AT4 trim elevates capability with rugged styling, enhanced suspension, and purpose-driven features for drivers who demand capability and comfort. Inside, this GMC Sierra blends functionality with convenience: Hands Free Bluetooth keeps you connected safely, Remote Start warms or cools the cabin before you climb in, and Adaptive Cruise Control maintains a smooth, stress-free highway experience. Safety-focused technologies include a Back-Up Camera for precise maneuvering and Lane Departure Warning to help keep you centered and alert. This 2026 GMC Sierra 2500 AT4 is perfectly suited for contractors, outdoor enthusiasts, and anyone who needs dependable diesel power combined with modern tech and driver assists. Located in Ponca City, OK, this truck is priced to sell and represents the best value in the area. Schedule a test drive today and experience the capability, comfort, and advanced features that make this GMC Sierra 2500 AT4 a standout choice.
Equipment
The vehicle comes equipped with Android Auto for seamless smartphone integration on the road. This model features a high end BOSE stereo system. The GMC Sierra features a hands-free Bluetooth phone system. Never get into a cold vehicle again with the remote start feature on the GMC Sierra. An off-road package is installed on this model so you are ready for your four-wheeling best. This model offers Apple CarPlay for seamless connectivity. It has auto-adjust speed for safe following. The leather seats in this model are a must for buyers looking for comfort, durability, and style. This unit's Lane Departure Warning helps keep you in your lane. See what's behind you with the back up camera on this 2026 GMC Sierra 2500. Keep your hands warm all winter with a heated steering wheel in this model . This vehicle is equipped with the latest generation of XM/Sirius Radio. This 3/4 ton pickup warns of approaching vehicles with Cross-Traffic Alert.
Packages
AT4 Premium Plus Package: Power Sunroof; Technology Package; Power-Retractable Black Assist Steps. 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. Power-Retractable Black Assist Steps. Technology Package. Power Sunroof. Gooseneck/5th Wheel Prep Package. Onyx Black. Hitch Package. 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
- AT4 Premium Plus Package: Power Sunroof; Technology Package; Power-Retractable Black Assist Steps
- 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
- Power-Retractable Black Assist Steps
- Technology Package
- Power Sunroof
- Gooseneck/5th Wheel Prep Package
- Onyx Black
- Hitch Package
- 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
- First-row sliding and tilting glass sunroof with express open/close activation sunshade
- 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
- 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 light test
- Trailer light malfunction warning
- Trailer theft alarm
- Dual-zone front climate control
- Full gauge cluster screen
- Auto high-beam headlights
- Immobilizer
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