2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
SUMMIT WHITE
4WD
Diesel
1 Miles
Jet Black w/Kalahari Accents
WG3434
1GT4UPEY5TF121556
2500
Leather
AT4
About This 2026 GMC Sierra
Vehicle Details
2026 GMC Sierra 2500 AT4 4WD — commanding capability meets refined comfort in this purpose-built heavy-duty pickup. Powered by a robust 6.6L V8 and a proven four-wheel-drive system, this GMC Sierra AT4 delivers the torque and confidence required for towing, hauling, and off-road adventure. The Off-Road Package enhances ground clearance and suspension tuning for rugged terrain while retaining composed on-road manners. Inside, premium materials and thoughtful driver-oriented design create a quiet, comfortable cabin. The heated steering wheel adds warmth and grip in cold conditions, while the BOSE stereo turns the cabin into a concert hall for long drives. Seamless smartphone integration is provided via both Apple CarPlay and Android Auto, keeping navigation, music, and communication at your fingertips. Safety and convenience features are integrated to support demanding workdays and weekend escapes, with advanced trail-capable hardware and driver-assist technologies enhancing confidence in varied conditions. Whether you need a capable workhorse for heavy-duty tasks or a capable off-road companion with refined interior amenities, this GMC Sierra 2500 AT4 delivers power, durability, and comfort in one polished package. Schedule a test drive to experience its capability firsthand.
Equipment
This 3/4 ton pickup features a hands-free Bluetooth phone system. Apple CarPlay: Seamless smartphone integration for the GMC Sierra - stay connected and entertained on the go! with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving it. Anywhere on the planet, you will have hundreds of digital stations to choose from. This GMC Sierra warns of approaching vehicles with Cross-Traffic Alert. Never get into a cold vehicle again with the remote start feature on this unit. This vehicle features a high end BOSE stereo system. The steering wheel audio controls on it keep the volume and station within easy reach. An off-road package is installed on this 2026 GMC Sierra 2500 so you are ready for your four-wheeling best. It comes equipped with Android Auto for seamless smartphone integration on the road. The leather seats in this model are a must for buyers looking for comfort, durability, and style.
Packages
AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote. AT4 Premium Plus Package: Power Sunroof; 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. Power-Retractable Black Assist Steps. Technology Package. Power Sunroof. 3 Years SiriusXM. 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. 9/30/2025. Contact dealer to verify final pricing.
2026 GMC Sierra 2500 AT4 4WD — commanding capability meets refined comfort in this purpose-built heavy-duty pickup. Powered by a robust 6.6L V8 and a proven four-wheel-drive system, this GMC Sierra AT4 delivers the torque and confidence required for towing, hauling, and off-road adventure. The Off-Road Package enhances ground clearance and suspension tuning for rugged terrain while retaining composed on-road manners. Inside, premium materials and thoughtful driver-oriented design create a quiet, comfortable cabin. The heated steering wheel adds warmth and grip in cold conditions, while the BOSE stereo turns the cabin into a concert hall for long drives. Seamless smartphone integration is provided via both Apple CarPlay and Android Auto, keeping navigation, music, and communication at your fingertips. Safety and convenience features are integrated to support demanding workdays and weekend escapes, with advanced trail-capable hardware and driver-assist technologies enhancing confidence in varied conditions. Whether you need a capable workhorse for heavy-duty tasks or a capable off-road companion with refined interior amenities, this GMC Sierra 2500 AT4 delivers power, durability, and comfort in one polished package. Schedule a test drive to experience its capability firsthand.
Equipment
This 3/4 ton pickup features a hands-free Bluetooth phone system. Apple CarPlay: Seamless smartphone integration for the GMC Sierra - stay connected and entertained on the go! with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving it. Anywhere on the planet, you will have hundreds of digital stations to choose from. This GMC Sierra warns of approaching vehicles with Cross-Traffic Alert. Never get into a cold vehicle again with the remote start feature on this unit. This vehicle features a high end BOSE stereo system. The steering wheel audio controls on it keep the volume and station within easy reach. An off-road package is installed on this 2026 GMC Sierra 2500 so you are ready for your four-wheeling best. It comes equipped with Android Auto for seamless smartphone integration on the road. The leather seats in this model are a must for buyers looking for comfort, durability, and style.
Packages
AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote. AT4 Premium Plus Package: Power Sunroof; 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. Power-Retractable Black Assist Steps. Technology Package. Power Sunroof. 3 Years SiriusXM. 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. 9/30/2025. Contact dealer to verify final pricing.
Features & Options
- AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote
- AT4 Premium Plus Package: Power Sunroof; 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
- Power-Retractable Black Assist Steps
- Technology Package
- Power Sunroof
- 3 Years SiriusXM
- 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
- 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
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