2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
Onyx Black
4WD
Diesel
6 Miles
Jet Black w/Kalahari Accents
22376
1GT4UPEY4TF126411
2500
Leather
AT4
Estimated Payment
$0 / month
About This 2026 GMC Sierra
Vehicle Details
2026 GMC Sierra 2500 AT4 4WD with the stout 6.6L V8 Diesel — located in Ponca City, OK — delivers the capability and comfort drivers demand. This rugged heavy-duty truck pairs best-in-class towing and payload performance with refined features for work and daily driving, and it's being offered at the best price in the area. The AT4 suspension and 4WD system tackle rough terrain with confidence while the diesel V8 provides exceptional low-end torque for hauling trailers and heavy loads. Inside, driver-focused amenities include a heated steering wheel and steering wheel audio controls for convenient command of entertainment and phone functions. Safety technologies such as lane departure warning and cross-traffic alert help protect you on busy highways and tight parking situations. An XM Radio-ready audio system adds crisp reception for long trips. This GMC Sierra 2500 AT4 blends rugged capability with modern convenience, making it ideal for contractors, outdoorsmen, and anyone who needs a durable truck that doesn't sacrifice comfort. Located in Ponca City, OK, this GMC Sierra is competitively priced to sell quickly — the best price available locally. Schedule a test drive today to experience the diesel torque, advanced safety features, and premium AT4 off-road capability firsthand. Financing options and vehicle history are available upon request.
Equipment
Never get into a cold vehicle again with the remote start feature on this GMC Sierra. This vehicle features a high end BOSE stereo system. This 2026 GMC Sierra 2500 features steering wheel audio controls. 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. This 3/4 ton pickup offers Apple CarPlay for seamless connectivity. This GMC Sierra's Lane Departure Warning helps keep you in your lane. An off-road package is installed on this unit so you are ready for your four-wheeling best. The leather seats in this 3/4 ton pickup are a must for buyers looking for comfort, durability, and style. Bluetooth technology is built into this GMC Sierra, keeping your hands on the steering wheel and your focus on the road. This 3/4 ton pickup is pure luxury with a heated steering wheel.
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.**
2026 GMC Sierra 2500 AT4 4WD with the stout 6.6L V8 Diesel — located in Ponca City, OK — delivers the capability and comfort drivers demand. This rugged heavy-duty truck pairs best-in-class towing and payload performance with refined features for work and daily driving, and it's being offered at the best price in the area. The AT4 suspension and 4WD system tackle rough terrain with confidence while the diesel V8 provides exceptional low-end torque for hauling trailers and heavy loads. Inside, driver-focused amenities include a heated steering wheel and steering wheel audio controls for convenient command of entertainment and phone functions. Safety technologies such as lane departure warning and cross-traffic alert help protect you on busy highways and tight parking situations. An XM Radio-ready audio system adds crisp reception for long trips. This GMC Sierra 2500 AT4 blends rugged capability with modern convenience, making it ideal for contractors, outdoorsmen, and anyone who needs a durable truck that doesn't sacrifice comfort. Located in Ponca City, OK, this GMC Sierra is competitively priced to sell quickly — the best price available locally. Schedule a test drive today to experience the diesel torque, advanced safety features, and premium AT4 off-road capability firsthand. Financing options and vehicle history are available upon request.
Equipment
Never get into a cold vehicle again with the remote start feature on this GMC Sierra. This vehicle features a high end BOSE stereo system. This 2026 GMC Sierra 2500 features steering wheel audio controls. 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. This 3/4 ton pickup offers Apple CarPlay for seamless connectivity. This GMC Sierra's Lane Departure Warning helps keep you in your lane. An off-road package is installed on this unit so you are ready for your four-wheeling best. The leather seats in this 3/4 ton pickup are a must for buyers looking for comfort, durability, and style. Bluetooth technology is built into this GMC Sierra, keeping your hands on the steering wheel and your focus on the road. This 3/4 ton pickup is pure luxury with a heated steering wheel.
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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