2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
Summit White
4WD
Diesel
2 Miles
Jet Black w/Kalahari Accents
GB509
1GT4UPEY6TF107505
2500
Leather
AT4
Estimated Payment
$0 / month
About This 2026 GMC Sierra
Vehicle Details
Conquer every job and every weekend with the 2026 GMC Sierra 2500 AT4 — a rugged, refined heavy-duty truck built to perform. Powered by a potent 6.6L V8 and robust 4WD, this GMC Sierra AT4 delivers the torque and towing capability you need for demanding work and off-road adventures. The trail-tuned AT4 suspension and purposeful styling make it ready for rough terrain while maintaining everyday comfort. Step inside to discover a well-appointed cabin featuring premium BOSE audio for exceptional sound, Hands Free Bluetooth for seamless connectivity, and a heated steering wheel that adds comfort on chilly mornings. Safety and convenience are enhanced with Cross-Traffic Alert and a Back-Up Camera to help you maneuver confidently in tight spots and busy lots. Durable bed features and smart storage solutions keep tools and gear organized, while engineered towing systems simplify heavy-duty hauling. Whether you're managing a job site or escaping to the trail, this GMC Sierra 2500 AT4 blends capability, tech, and comfort into one commanding package. Schedule a test drive today to feel the power of the 6.6L V8 and experience the confident handling of the GMC Sierra 2500 AT4 firsthand.
Equipment
This model offers Apple CarPlay for seamless connectivity. This unit's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. Protect the vehicle from unwanted accidents with a cutting edge backup camera system. This GMC Sierra features a high end BOSE stereo system. This GMC Sierra features steering wheel audio controls. The leather seats in the vehicle are a must for buyers looking for comfort, durability, and style. Start this GMC Sierra from inside with remote start. This 3/4 ton pickup is equipped with the latest generation of XM/Sirius Radio. This unit offers Android Auto for seamless smartphone integration. This 2026 GMC Sierra 2500 features a hands-free Bluetooth phone system. This unit has auto-adjust speed for safe following. Keep your hands warm all winter with a heated steering wheel in this GMC Sierra . This unit's Lane Departure Warning helps keep you in your lane. An off-road package is installed on it so you are ready for your four-wheeling best.
Packages
Cargo Convenience Package: Console-Mounted Safe; Rear Underseat Storage. AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote. 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. Snow Plow Prep/camper Package: 220-Amp Alternator; Skid Plates. Gooseneck/5th Wheel Prep Package. Console-Mounted Safe. Rear Underseat Storage. 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 every job and every weekend with the 2026 GMC Sierra 2500 AT4 — a rugged, refined heavy-duty truck built to perform. Powered by a potent 6.6L V8 and robust 4WD, this GMC Sierra AT4 delivers the torque and towing capability you need for demanding work and off-road adventures. The trail-tuned AT4 suspension and purposeful styling make it ready for rough terrain while maintaining everyday comfort. Step inside to discover a well-appointed cabin featuring premium BOSE audio for exceptional sound, Hands Free Bluetooth for seamless connectivity, and a heated steering wheel that adds comfort on chilly mornings. Safety and convenience are enhanced with Cross-Traffic Alert and a Back-Up Camera to help you maneuver confidently in tight spots and busy lots. Durable bed features and smart storage solutions keep tools and gear organized, while engineered towing systems simplify heavy-duty hauling. Whether you're managing a job site or escaping to the trail, this GMC Sierra 2500 AT4 blends capability, tech, and comfort into one commanding package. Schedule a test drive today to feel the power of the 6.6L V8 and experience the confident handling of the GMC Sierra 2500 AT4 firsthand.
Equipment
This model offers Apple CarPlay for seamless connectivity. This unit's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. Protect the vehicle from unwanted accidents with a cutting edge backup camera system. This GMC Sierra features a high end BOSE stereo system. This GMC Sierra features steering wheel audio controls. The leather seats in the vehicle are a must for buyers looking for comfort, durability, and style. Start this GMC Sierra from inside with remote start. This 3/4 ton pickup is equipped with the latest generation of XM/Sirius Radio. This unit offers Android Auto for seamless smartphone integration. This 2026 GMC Sierra 2500 features a hands-free Bluetooth phone system. This unit has auto-adjust speed for safe following. Keep your hands warm all winter with a heated steering wheel in this GMC Sierra . This unit's Lane Departure Warning helps keep you in your lane. An off-road package is installed on it so you are ready for your four-wheeling best.
Packages
Cargo Convenience Package: Console-Mounted Safe; Rear Underseat Storage. AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote. 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. Snow Plow Prep/camper Package: 220-Amp Alternator; Skid Plates. Gooseneck/5th Wheel Prep Package. Console-Mounted Safe. Rear Underseat Storage. 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
- Cargo Convenience Package: Console-Mounted Safe; Rear Underseat Storage
- AT4 Preferred Package: Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Universal Home Remote
- 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
- Snow Plow Prep/camper Package: 220-Amp Alternator; Skid Plates
- Gooseneck/5th Wheel Prep Package
- Console-Mounted Safe
- Rear Underseat Storage
- 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
- 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
- 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
- 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
- Bluetooth handsfree wireless device connectivity
- Trailer brake controller
- Trailer sway control
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