2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
Sterling Metallic
4WD
Diesel
30 Miles
Jet Black w/Kalahari Accents
WG3499
1GT4UPEY4TF110256
2500
Leather
AT4
About This 2026 GMC Sierra
Vehicle Details
2026 GMC Sierra 2500 AT4 4WD with the potent 6.6L V8 diesel — ready for work, adventure, and everything in between. Located in Warsaw, IN, this rugged heavy-duty pickup blends commanding capability with refined comfort. The Duramax diesel delivers exceptional torque for towing and hauling, while the AT4's off-road package adds skid plates, upgraded suspension, and all-terrain tires to tackle rough trails with confidence. Inside, premium leather seats and a heated steering wheel provide year-round comfort for long drives or tough jobs. Adaptive Cruise Control helps maintain safe following distances on highways, reducing fatigue during extended trips. XM Radio keeps entertainment and information on demand, and the cabin is designed for both driver convenience and passenger comfort. This GMC Sierra 2500 AT4 is equipped with advanced technology and off-road-ready features to handle demanding conditions without sacrificing refinement. Whether you need towing capability, trail competence, or a comfortable daily driver, this truck delivers. Located in Warsaw, IN, we offer the best price on this 2026 GMC Sierra 2500 AT4 4WD with the 6.6L V8 diesel — competitive value backed by knowledgeable service and straightforward buying. Contact us for availability and to schedule a test drive today.
Equipment
The leather seats in this 2026 GMC Sierra 2500 are a must for buyers looking for comfort, durability, and style. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving the GMC Sierra. Anywhere on the planet, you will have hundreds of digital stations to choose from. See what's behind you with the back up camera on the vehicle. An off-road package is equipped on it. The GMC Sierra's Lane Departure Warning helps keep you in your lane. Bluetooth technology is built into this unit, keeping your hands on the steering wheel and your focus on the road. This 3/4 ton pickup features a high end BOSE stereo system. This unit offers Apple CarPlay for seamless connectivity. Keep your hands warm all winter with a heated steering wheel in this 3/4 ton pickup . This GMC Sierra's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing.
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. Sterling Metallic. 1st and 2nd Rows All-Weather Floor Liners. GMC MultiPro Tailgate Step Lights. 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.**
Additional Information
WARSAW BUICK GMC CHRYSLER HAS BEEN SERVING THE AREA FOR OVER THREE DECADES! WARSAW, PLYMOUTH, GOSHEN, COLUMBIA CITY, WINONA LAKE, MISHAWAKA, FORT WAYNE, LIGONIER, SYRACUSE, AND ELKHART! The dealer is not responsible for equipment and or omissions. We apply paint & fabric defense interior and exterior protection using the latest technology to protect your investment. This is $699 is not included in our online or list price.
Manufacturer Incentives
Price includes: Guaranteed Incentives: $500 - Buick & GMC Consumer Cash Program - Exp. 1/2/2026. Contact dealer to verify final pricing.
2026 GMC Sierra 2500 AT4 4WD with the potent 6.6L V8 diesel — ready for work, adventure, and everything in between. Located in Warsaw, IN, this rugged heavy-duty pickup blends commanding capability with refined comfort. The Duramax diesel delivers exceptional torque for towing and hauling, while the AT4's off-road package adds skid plates, upgraded suspension, and all-terrain tires to tackle rough trails with confidence. Inside, premium leather seats and a heated steering wheel provide year-round comfort for long drives or tough jobs. Adaptive Cruise Control helps maintain safe following distances on highways, reducing fatigue during extended trips. XM Radio keeps entertainment and information on demand, and the cabin is designed for both driver convenience and passenger comfort. This GMC Sierra 2500 AT4 is equipped with advanced technology and off-road-ready features to handle demanding conditions without sacrificing refinement. Whether you need towing capability, trail competence, or a comfortable daily driver, this truck delivers. Located in Warsaw, IN, we offer the best price on this 2026 GMC Sierra 2500 AT4 4WD with the 6.6L V8 diesel — competitive value backed by knowledgeable service and straightforward buying. Contact us for availability and to schedule a test drive today.
Equipment
The leather seats in this 2026 GMC Sierra 2500 are a must for buyers looking for comfort, durability, and style. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving the GMC Sierra. Anywhere on the planet, you will have hundreds of digital stations to choose from. See what's behind you with the back up camera on the vehicle. An off-road package is equipped on it. The GMC Sierra's Lane Departure Warning helps keep you in your lane. Bluetooth technology is built into this unit, keeping your hands on the steering wheel and your focus on the road. This 3/4 ton pickup features a high end BOSE stereo system. This unit offers Apple CarPlay for seamless connectivity. Keep your hands warm all winter with a heated steering wheel in this 3/4 ton pickup . This GMC Sierra's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing.
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. Sterling Metallic. 1st and 2nd Rows All-Weather Floor Liners. GMC MultiPro Tailgate Step Lights. 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.**
Additional Information
WARSAW BUICK GMC CHRYSLER HAS BEEN SERVING THE AREA FOR OVER THREE DECADES! WARSAW, PLYMOUTH, GOSHEN, COLUMBIA CITY, WINONA LAKE, MISHAWAKA, FORT WAYNE, LIGONIER, SYRACUSE, AND ELKHART! The dealer is not responsible for equipment and or omissions. We apply paint & fabric defense interior and exterior protection using the latest technology to protect your investment. This is $699 is not included in our online or list price.
Manufacturer Incentives
Price includes: Guaranteed Incentives: $500 - Buick & GMC Consumer Cash Program - Exp. 1/2/2026. Contact dealer to verify final pricing.
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
- Sterling Metallic
- 1st and 2nd Rows All-Weather Floor Liners
- GMC MultiPro Tailgate Step Lights
- 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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