2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
Sterling Metallic
4WD
Diesel
0 Miles
Jet Black w/Kalahari Accents
N8899
1GT4UPEY9TF251016
2500
Leather
AT4
About This 2026 GMC Sierra
Vehicle Details
Conquer the toughest jobs with the 2026 GMC Sierra 2500 AT4, a heavy-duty 4WD pickup built around a powerful V8 6.6L Duramax diesel engine and rugged off-road capability. This GMC Sierra 2500 AT4 pairs brute strength with modern convenience, delivering the confidence you need for towing, hauling, and weekend adventures. On the inside, enjoy seamless smartphone integration via Apple CarPlay, easy vehicle control with steering wheel audio controls, and the convenience of remote start for quick, comfortable departures. Safety-focused technology includes Lane Departure Warning and a Back-Up Camera to enhance situational awareness while maneuvering work sites or tight parking areas. The AT4 trim brings off-road-tuned suspension, protective skid plates, and purposeful styling, while the diesel V8 supplies long-haul durability and low-RPM torque for demanding tasks. Thoughtful touches like durable interior materials, multiple storage solutions, and user-friendly infotainment make this GMC Sierra both a capable work truck and a comfortable daily driver. Whether you're towing equipment or navigating rough terrain, this GMC Sierra 2500 AT4 offers the capability and technology to get the job done. This 2026 GMC Sierra 2500 AT4 is located in Corinth, MS - stop by to inspect its robust construction, test drive its commanding diesel powertrain, and experience the blend of capability and convenience engineered into this heavy-duty pickup.
Equipment
Start the GMC Sierra from inside with remote start. An off-road package is equipped on it. The leather seats in the GMC Sierra are a must for buyers looking for comfort, durability, and style. Engulf yourself with the crystal clear sound of a BOSE sound system in it. The GMC Sierra has auto-adjust speed for safe following. The GMC Sierra is equipped with the latest generation of XM/Sirius Radio. This 3/4 ton pickup's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The vehicle features a hands-free Bluetooth phone system. Keep your hands warm all winter with a heated steering wheel in the GMC Sierra . Apple CarPlay: Seamless smartphone integration for this 3/4 ton pickup - stay connected and entertained on the go! See what's behind you with the back up camera on the vehicle. This unit features steering wheel audio controls. This 3/4 ton pickup's Lane Departure Warning helps keep you in your lane.
Packages
Max Trailering Package: 11. 750 lbs (5. 330 Kg) GVWR; Gooseneck/5th Wheel Prep Package. AT4 Premium Plus Package: Power Sunroof; Off-Road High Clearance Step; Technology Package. 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. Technology Package. Off-Road High Clearance Step. Power Sunroof. Body Color Wheel Arch Moldings. Gooseneck/5th Wheel Prep Package. Sterling Metallic. LT275/65R20E 126/123 Off-Road T/A KO3 Tires. 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.**
Conquer the toughest jobs with the 2026 GMC Sierra 2500 AT4, a heavy-duty 4WD pickup built around a powerful V8 6.6L Duramax diesel engine and rugged off-road capability. This GMC Sierra 2500 AT4 pairs brute strength with modern convenience, delivering the confidence you need for towing, hauling, and weekend adventures. On the inside, enjoy seamless smartphone integration via Apple CarPlay, easy vehicle control with steering wheel audio controls, and the convenience of remote start for quick, comfortable departures. Safety-focused technology includes Lane Departure Warning and a Back-Up Camera to enhance situational awareness while maneuvering work sites or tight parking areas. The AT4 trim brings off-road-tuned suspension, protective skid plates, and purposeful styling, while the diesel V8 supplies long-haul durability and low-RPM torque for demanding tasks. Thoughtful touches like durable interior materials, multiple storage solutions, and user-friendly infotainment make this GMC Sierra both a capable work truck and a comfortable daily driver. Whether you're towing equipment or navigating rough terrain, this GMC Sierra 2500 AT4 offers the capability and technology to get the job done. This 2026 GMC Sierra 2500 AT4 is located in Corinth, MS - stop by to inspect its robust construction, test drive its commanding diesel powertrain, and experience the blend of capability and convenience engineered into this heavy-duty pickup.
Equipment
Start the GMC Sierra from inside with remote start. An off-road package is equipped on it. The leather seats in the GMC Sierra are a must for buyers looking for comfort, durability, and style. Engulf yourself with the crystal clear sound of a BOSE sound system in it. The GMC Sierra has auto-adjust speed for safe following. The GMC Sierra is equipped with the latest generation of XM/Sirius Radio. This 3/4 ton pickup's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The vehicle features a hands-free Bluetooth phone system. Keep your hands warm all winter with a heated steering wheel in the GMC Sierra . Apple CarPlay: Seamless smartphone integration for this 3/4 ton pickup - stay connected and entertained on the go! See what's behind you with the back up camera on the vehicle. This unit features steering wheel audio controls. This 3/4 ton pickup's Lane Departure Warning helps keep you in your lane.
Packages
Max Trailering Package: 11. 750 lbs (5. 330 Kg) GVWR; Gooseneck/5th Wheel Prep Package. AT4 Premium Plus Package: Power Sunroof; Off-Road High Clearance Step; Technology Package. 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. Technology Package. Off-Road High Clearance Step. Power Sunroof. Body Color Wheel Arch Moldings. Gooseneck/5th Wheel Prep Package. Sterling Metallic. LT275/65R20E 126/123 Off-Road T/A KO3 Tires. 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
- Max Trailering Package: 11
- 750 lbs (5
- 330 Kg) GVWR; Gooseneck/5th Wheel Prep Package
- AT4 Premium Plus Package: Power Sunroof; Off-Road High Clearance Step; Technology Package
- 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
- Technology Package
- Off-Road High Clearance Step
- Power Sunroof
- Body Color Wheel Arch Moldings
- Gooseneck/5th Wheel Prep Package
- Sterling Metallic
- LT275/65R20E 126/123 Off-Road T/A KO3 Tires
- 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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