2026 GMC Sierra AT4

Vehicle Details
Experience commanding performance with this 2026 GMC Sierra 2500 AT4 4WD, featuring a powerful V8 6.6L diesel engine built for heavy-duty towing and rugged off-road capability. Finished with premium leather seats and an Off-Road Package, this GMC Sierra 2500 AT4 combines luxury and capability for work or weekend adventures. Advanced safety and convenience include Cross-Traffic Alert, steering wheel audio controls, and seamless smartphone integration with Apple CarPlay for navigation, music, and hands-free calling.

Designed for drivers who demand capability without sacrificing comfort, this GMC Sierra offers a refined cabin, durable materials, and intuitive controls. The robust diesel V8 delivers exceptional torque for trailering and hauling, while 4WD and the Off-Road Package provide confidence on challenging terrain. Additional tech features and driver assists enhance everyday usability and long-distance comfort.

Located in Newberry, SC, this 2026 GMC Sierra 2500 AT4 is competitively priced and advertised with the best price in the area—an unbeatable value for a diesel-powered, feature-rich heavy-duty truck. Whether you need reliable towing performance, off-road readiness, or upscale interior amenities, this GMC Sierra delivers. Contact us for more details, schedule a test drive in Newberry, SC, and see why this GMC Sierra 2500 AT4 represents top value and capability in its class.

Equipment
The GMC Sierra features a hands-free Bluetooth phone system. An off-road package is equipped on it. The vehicle offers Android Auto for seamless smartphone integration. This GMC Sierra is equipped with the latest generation of XM/Sirius Radio. Never get into a cold vehicle again with the remote start feature on the GMC Sierra. This GMC Sierra is pure luxury with a heated steering wheel. See what's behind you with the back up camera on this vehicle. The steering wheel audio controls on this 2026 GMC Sierra 2500 keep the volume and station within easy reach. This model warns of approaching vehicles with Cross-Traffic Alert. The vehicle has auto-adjust speed for safe following. It's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. This unit features a high end BOSE stereo system. The leather seats in this 2026 GMC Sierra 2500 are a must for buyers looking for comfort, durability, and style.The spacious cab of this three-quarter ton offers many convenience and technology options. It is also ready for your burliest jobs. When you encounter slick or muddy roads, you can engage the four wheel drive on the GMC Sierra and drive with confidence. This unit has auto-adjust speed for safe following. This unit comes equipped with Android Auto for seamless smartphone integration on the road. This GMC Sierra offers Apple CarPlay for seamless connectivity. This GMC Sierra has an automatic transmission. Engulf yourself with the crystal clear sound of a BOSE sound system in it. Protect this 3/4 ton pickup from unwanted accidents with a cutting edge backup camera system. Maintaining a stable interior temperature in the vehicle is easy with the climate control system. The vehicle warns of approaching vehicles with Cross-Traffic Alert. Easily set your speed in this unit with a state of the art cruise control system. Increase or decrease velocity with the touch of a button. With a diesel engine you will be pleased with the power, torque, and fuel efficiency gains. This model has a V8, 6.6L high output engine. This vehicle features a hands-free Bluetooth phone system. This model is pure luxury with a heated steering wheel. Quickly unlock this 2026 GMC Sierra 2500 with keyless entry. This 2026 GMC Sierra 2500's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. The leather seats in this GMC Sierra are a must for buyers looking for comfort, durability, and style. With the adjustable lumbar support in this 2026 GMC Sierra 2500 your back will love you. An off-road package is installed on this 2026 GMC Sierra 2500 so you are ready for your four-wheeling best. This vehicle is outfitted with an OnStar communication system. Start the vehicle from inside with remote start. This unit gleams with an elegant silver clear coated finish. The steering wheel audio controls on this model keep the volume and station within easy reach. The GMC Sierra is built for driving comfort with a telescoping wheel. The GMC Sierra is equipped with the latest generation of XM/Sirius Radio.

Packages
Max Trailering Package: Gooseneck/5th Wheel Prep Package. 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; 6.6L V8 with Direct Injection and Variable Valve Timing Engine; 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. 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.**Max Trailering Package: Gooseneck/5th Wheel Prep Package 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; 6.6L V8 with Direct Injection and Variable Valve Timing Engine; 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 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
By submitting your information, you consent to receive all forms of communication including but not limited to; phone, text, email, mail, etc. Message and data rates may apply. Consent to these terms is not a condition of purchase: all prices plus a $399 closing fee. Tax, title, license, and dealer-installed accessories (unless itemized) are extra. Not available with special finance, lease, and some other offers. **Pricing is subject to change without notice. ***Sales Price is based on in-stock units. Tax, tag, title, and registration extra. The selling price includes all dealer incentives and rebates, special APR can be used in lieu of dealer incentives and rebates when applicable. Final Selling Price subject to dealer approval. Actual sale vehicles may differ from pictured units. Price Does not include Infrastructure Maintenance Fee of $500, SCDMV tag and title fees, or Dealer Closing Fee of $399.00.