2026 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
Coastal Dune
4WD
Diesel
15 Miles
Jet Black w/Kalahari Accents
G26093
1GT4UPEY5TF123260
2500
Leather
AT4
About This 2026 GMC Sierra
Vehicle Details
2026 GMC Sierra 2500 AT4 4WD with the 6.6L V8 Diesel delivers uncompromising capability and refined comfort for drivers in Athens, AL. Built for heavy-duty performance, this GMC Sierra AT4 pairs a powerful diesel V8 with robust four-wheel drive to tow, haul, and conquer demanding terrain while maintaining confident on-road manners. The rugged AT4 suspension and off-road-ready features provide superior control and durability whether you’re heading to the jobsite or exploring off pavement. Inside, the cabin balances utility with upscale touches. Stay connected and entertained with Hands Free Bluetooth, XM Radio, and a premium BOSE stereo system that fills the interior with rich audio. Technology enhances convenience and safety with Apple CarPlay integration for seamless smartphone access and a Back-Up Camera that makes maneuvering and hitching straightforward. Thoughtful storage and durable materials make the GMC Sierra 2500 AT4 a practical daily driver and a dependable work partner. Located in Athens, AL, this 2026 GMC Sierra 2500 AT4 4WD with the 6.6L Diesel is competitively priced and advertised as the best price available—offering exceptional value for drivers seeking capability and comfort. Contact us to schedule a test drive and experience the power, technology, and confidence this GMC Sierra brings to every mile.
Equipment
See what's behind you with the back up camera on it. An off-road package is installed on this unit so you are ready for your four-wheeling best. The leather seats in this GMC Sierra are a must for buyers looking for comfort, durability, and style. Never get into a cold vehicle again with the remote start feature on the vehicle. The steering wheel audio controls on this vehicle keep the volume and station within easy reach. This vehicle is equipped with the latest generation of XM/Sirius Radio. This GMC Sierra features a hands-free Bluetooth phone system. This vehicle's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. Engulf yourself with the crystal clear sound of a BOSE sound system in this model. This model has auto-adjust speed for safe following. This 3/4 ton pickup's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. This 2026 GMC Sierra 2500 is pure luxury with a heated steering wheel.
Packages
AT4 Premium Plus 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. 22" High Gloss Black Aluminum Wheels. Hard Folding Truck Bed Cover. Technology Package. Off-Road High Clearance Step. Power Sunroof. Body Color Wheel Arch Moldings. Coastal Dune. LT265/60R22E All-Terrain Blackwall Tires. Console-Mounted Safe. Rear Underseat Storage. 1st and 2nd Rows All-Weather Floor Liners. Universal Vehicle Module. GMC MultiPro Tailgate Step Lights. Upfitter Switch Kit (5). LED Smoked Amber Roof Marker Lamps. Heavy Duty Front Spring/camper Package. 5th Wheel and Gooseneck Trailer Wiring Provisions. **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.**
2026 GMC Sierra 2500 AT4 4WD with the 6.6L V8 Diesel delivers uncompromising capability and refined comfort for drivers in Athens, AL. Built for heavy-duty performance, this GMC Sierra AT4 pairs a powerful diesel V8 with robust four-wheel drive to tow, haul, and conquer demanding terrain while maintaining confident on-road manners. The rugged AT4 suspension and off-road-ready features provide superior control and durability whether you’re heading to the jobsite or exploring off pavement. Inside, the cabin balances utility with upscale touches. Stay connected and entertained with Hands Free Bluetooth, XM Radio, and a premium BOSE stereo system that fills the interior with rich audio. Technology enhances convenience and safety with Apple CarPlay integration for seamless smartphone access and a Back-Up Camera that makes maneuvering and hitching straightforward. Thoughtful storage and durable materials make the GMC Sierra 2500 AT4 a practical daily driver and a dependable work partner. Located in Athens, AL, this 2026 GMC Sierra 2500 AT4 4WD with the 6.6L Diesel is competitively priced and advertised as the best price available—offering exceptional value for drivers seeking capability and comfort. Contact us to schedule a test drive and experience the power, technology, and confidence this GMC Sierra brings to every mile.
Equipment
See what's behind you with the back up camera on it. An off-road package is installed on this unit so you are ready for your four-wheeling best. The leather seats in this GMC Sierra are a must for buyers looking for comfort, durability, and style. Never get into a cold vehicle again with the remote start feature on the vehicle. The steering wheel audio controls on this vehicle keep the volume and station within easy reach. This vehicle is equipped with the latest generation of XM/Sirius Radio. This GMC Sierra features a hands-free Bluetooth phone system. This vehicle's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. Engulf yourself with the crystal clear sound of a BOSE sound system in this model. This model has auto-adjust speed for safe following. This 3/4 ton pickup's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. This 2026 GMC Sierra 2500 is pure luxury with a heated steering wheel.
Packages
AT4 Premium Plus 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. 22" High Gloss Black Aluminum Wheels. Hard Folding Truck Bed Cover. Technology Package. Off-Road High Clearance Step. Power Sunroof. Body Color Wheel Arch Moldings. Coastal Dune. LT265/60R22E All-Terrain Blackwall Tires. Console-Mounted Safe. Rear Underseat Storage. 1st and 2nd Rows All-Weather Floor Liners. Universal Vehicle Module. GMC MultiPro Tailgate Step Lights. Upfitter Switch Kit (5). LED Smoked Amber Roof Marker Lamps. Heavy Duty Front Spring/camper Package. 5th Wheel and Gooseneck Trailer Wiring Provisions. **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
- AT4 Premium Plus 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
- 22" High Gloss Black Aluminum Wheels
- Hard Folding Truck Bed Cover
- Technology Package
- Off-Road High Clearance Step
- Power Sunroof
- Body Color Wheel Arch Moldings
- Coastal Dune
- LT265/60R22E All-Terrain Blackwall Tires
- Console-Mounted Safe
- Rear Underseat Storage
- 1st and 2nd Rows All-Weather Floor Liners
- Universal Vehicle Module
- GMC MultiPro Tailgate Step Lights
- Upfitter Switch Kit (5)
- LED Smoked Amber Roof Marker Lamps
- Heavy Duty Front Spring/camper Package
- 5th Wheel and Gooseneck Trailer Wiring Provisions
- 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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