2026 GMC Sierra AT4X
GMC Sierra Details
Automatic
V8, 6.6L
ONYX BLACK
4WD
Diesel
1 Miles
OBSIDIAN RUSH
826148
1GT4UZEY2TF268431
2500
Leather
AT4X
Estimated Payment
$0 / month
About This 2026 GMC Sierra
Vehicle Details
Elevate your tow and trail capabilities with this commanding 2026 GMC Sierra 2500 AT4X 4WD, now available in Rockford, IL. Powered by a robust V8 6.6L Diesel, this GMC Sierra 2500 AT4X combines serious muscle with refined off-road capability - engineered for heavy-duty performance and confidence on any terrain. The aggressive stance, rugged AT4X trim, and premium suspension deliver capability and comfort whether you're hauling, towing, or exploring. Inside, experience a driver-focused cabin packed with modern tech and convenience features. Steering wheel audio controls and Hands-Free Bluetooth keep calls and music within easy reach, while Android Auto ensures seamless smartphone integration. A heated steering wheel adds extra comfort on chilly Illinois mornings, and Cross-Traffic Alert enhances safety in busy parking lots and tight situations. This GMC Sierra 2500 AT4X also includes thoughtful utility features, durable interior materials, and advanced towing hardware to make work and recreation effortless. Exterior design cues signal capability and presence, and the AT4X-specific upgrades deliver true off-road readiness without sacrificing on-road refinement. Located in Rockford, IL, this GMC Sierra 2500 AT4X is ready to take on your toughest jobs and weekend adventures. Contact us to arrange a test drive and experience the combination of diesel torque, heavy-duty engineering, and comfort that sets this GMC apart. Tour the truck today and feel the difference.
Equipment
The vehicle features a hands-free Bluetooth phone system. An off-road package is equipped on this vehicle. Never get into a cold vehicle again with the remote start feature on this 3/4 ton pickup. This 3/4 ton pickup's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. 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 this unit. The steering wheel audio controls on this unit keep the volume and station within easy reach. The vehicle has auto-adjust speed for safe following. Protect this unit from unwanted accidents with a cutting edge backup camera system. This 3/4 ton pickup is pure luxury with a heated steering wheel. Apple CarPlay: Seamless smartphone integration for it - stay connected and entertained on the go! This 2026 GMC Sierra 2500 is equipped with the latest generation of XM/Sirius Radio.
Packages
Preferred Equipment Group 4SG: Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Power Sliding Rear Window with Defogger; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Inside Rearview Auo-Dimming Rear Camera Mirror; Front Rain-Sensing Wipers; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Rear Premium Floor Liners with Removable Carpet Insert; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Power Sunroof; Multicolor 15" Diagonal Head-Up Display; Keyless Open and Start; Bose Premium Series 12-Speaker System; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Center Console; Bed View Camera with Two Trailer Camera Provisions; Trailer Tire Pressure Monitor Sensors; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 2 Charge/data USB Ports Inside Center Console; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports; Universal Home Remote; 120-Volt Bed Mounted Power Outlet; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; ProGrade Trailering System; Rear Wheelhouse Liners. Snow Plow Prep/camper Package: 220-Amp Alternator. Onyx Black. **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.**
Elevate your tow and trail capabilities with this commanding 2026 GMC Sierra 2500 AT4X 4WD, now available in Rockford, IL. Powered by a robust V8 6.6L Diesel, this GMC Sierra 2500 AT4X combines serious muscle with refined off-road capability - engineered for heavy-duty performance and confidence on any terrain. The aggressive stance, rugged AT4X trim, and premium suspension deliver capability and comfort whether you're hauling, towing, or exploring. Inside, experience a driver-focused cabin packed with modern tech and convenience features. Steering wheel audio controls and Hands-Free Bluetooth keep calls and music within easy reach, while Android Auto ensures seamless smartphone integration. A heated steering wheel adds extra comfort on chilly Illinois mornings, and Cross-Traffic Alert enhances safety in busy parking lots and tight situations. This GMC Sierra 2500 AT4X also includes thoughtful utility features, durable interior materials, and advanced towing hardware to make work and recreation effortless. Exterior design cues signal capability and presence, and the AT4X-specific upgrades deliver true off-road readiness without sacrificing on-road refinement. Located in Rockford, IL, this GMC Sierra 2500 AT4X is ready to take on your toughest jobs and weekend adventures. Contact us to arrange a test drive and experience the combination of diesel torque, heavy-duty engineering, and comfort that sets this GMC apart. Tour the truck today and feel the difference.
Equipment
The vehicle features a hands-free Bluetooth phone system. An off-road package is equipped on this vehicle. Never get into a cold vehicle again with the remote start feature on this 3/4 ton pickup. This 3/4 ton pickup's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. 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 this unit. The steering wheel audio controls on this unit keep the volume and station within easy reach. The vehicle has auto-adjust speed for safe following. Protect this unit from unwanted accidents with a cutting edge backup camera system. This 3/4 ton pickup is pure luxury with a heated steering wheel. Apple CarPlay: Seamless smartphone integration for it - stay connected and entertained on the go! This 2026 GMC Sierra 2500 is equipped with the latest generation of XM/Sirius Radio.
Packages
Preferred Equipment Group 4SG: Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Power Sliding Rear Window with Defogger; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Inside Rearview Auo-Dimming Rear Camera Mirror; Front Rain-Sensing Wipers; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Rear Premium Floor Liners with Removable Carpet Insert; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Power Sunroof; Multicolor 15" Diagonal Head-Up Display; Keyless Open and Start; Bose Premium Series 12-Speaker System; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Center Console; Bed View Camera with Two Trailer Camera Provisions; Trailer Tire Pressure Monitor Sensors; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 2 Charge/data USB Ports Inside Center Console; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports; Universal Home Remote; 120-Volt Bed Mounted Power Outlet; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; ProGrade Trailering System; Rear Wheelhouse Liners. Snow Plow Prep/camper Package: 220-Amp Alternator. Onyx Black. **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
- Preferred Equipment Group 4SG: Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Power Sliding Rear Window with Defogger; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Inside Rearview Auo-Dimming Rear Camera Mirror; Front Rain-Sensing Wipers; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Rear Premium Floor Liners with Removable Carpet Insert; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; Power Sunroof; Multicolor 15" Diagonal Head-Up Display; Keyless Open and Start; Bose Premium Series 12-Speaker System; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Center Console; Bed View Camera with Two Trailer Camera Provisions; Trailer Tire Pressure Monitor Sensors; Sierra HD Pro Safety; Wireless Phone Projection; 2 USB Ports; Rear Cross Traffic Alert; 2 Charge/data USB Ports Inside Center Console; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports; Universal Home Remote; 120-Volt Bed Mounted Power Outlet; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bedliner with GMC Logo; ProGrade Trailering System; Rear Wheelhouse Liners
- Snow Plow Prep/camper Package: 220-Amp Alternator
- Onyx Black
- 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
- seatback side bolster 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 tire pressure sensors
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
- Dual-zone front climate control
- Off-road speed control
- Full gauge cluster screen
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