New 2026 GMC Sierra 2500HD AT4X 4WD

This 2026 GMC Sierra 2500HD AT4X offers the capability and refinement you need for work or adventure in a package built to perform and endure.

- 6.6L V8 Duramax Turbodiesel engine with 470 hp and 975 lb-ft of torque
- 10-Speed Automatic transmission with 4WD and 2-Speed Active Transfer Case
- Heated and Cooled Full Grain Leather Seats with 16-Way Power Adjusters
- Premium Bose 12-Speaker Audio System with Apple CarPlay and Android Auto
- Multicolor 15" Head-Up Display with Wireless Phone Projection
- Spray-on Bedliner with GMC Logo and Pickup Box
- Power Sunroof and Wireless Charging Pad
- Gooseneck/5th Wheel Prep Package with Trailer Tire Pressure Monitors
- Hill Descent Control and Off-Road Suspension
- Automatic Emergency Braking with Front Pedestrian Braking
- HD Surround Vision with Bed View Camera and Trailer Cameras
- Rear Cross Traffic Alert and Trailer Side Blind Zone Alert
- IntelliBeam Automatic High Beam Technology
- SiriusXM 360L with One-Year Trial Subscription
- Engine Block Heater and Exhaust Brake

This AT4X combines serious towing and hauling capability with the advanced technology and comfort features that make every drive enjoyable. The Duramax diesel engine delivers commanding torque for heavy loads while maintaining fuel efficiency, and the comprehensive camera system—including bed view, trailer cameras, and surround vision—gives you unprecedented visibility for any task. The suspension has been specifically tuned for off-road performance without sacrificing on-road refinement, while the transfer case provides the control you need in demanding conditions.

Inside, the Sierra welcomes you with premium materials and thoughtful design. Heated and cooled leather seats keep you comfortable in any season, while the 15-inch head-up display projects critical information directly into your line of sight. The Bose premium audio system transforms daily commutes into quality listening experiences, and wireless charging keeps your devices ready throughout the day. Climate zones for driver and passenger ensure everyone stays comfortable.

Safety is woven into every aspect of this truck. Automatic emergency braking, front pedestrian braking, lane departure warning, and rear cross traffic alert work together to help protect you and your passengers. The surround vision cameras and parking assistance systems take the stress out of tight maneuvers, whether you're navigating a job site or a crowded lot.

Practical features make ownership straightforward. The spray-on bedliner with GMC logo protects your cargo area, while the gooseneck prep package and hitch guidance system with integrated trailering app prepare you for serious hauling. Multiple USB ports, a 120-volt bed outlet, and wireless connectivity keep you connected wherever work takes you.

This is a one-owner, non-smoker truck with a clean Carfax and local history—evidence of careful ownership and maintenance. It has been thoroughly inspected and is ready for the next chapter of its story.

"Why buy from Greg Lair GMC?" It's a great question with an even better answer! We've been a local fixture in the Panhandle for over 40 years, putting customers from Amarillo and the Panhandle first every single day. We set ourselves apart as the home of the FREE Lifetime Powertrain Warranty on all inventory under 100,000 miles. From our hassle-free buying process to our thorough multi-point inspections by Certified GM Technicians, we make sure your next vehicle is safe, reliable, and ready for the road. Stop by today and see the Greg Lair difference for yourself!