New 2026 GMC Sierra 1500 AT4 With Navigation & 4WD

This 2026 GMC Sierra 1500 AT4 represents a premium truck engineered for those who demand capability, comfort, and advanced technology in one powerful package.

- Power Sunroof
- TECHNOLOGY PACKAGE with Rear Camera Mirror and 15" Multicolor Head-Up Display
- 6.2L EcoTec3 V8 Engine with 420 hp and 460 lb-ft of torque
- Dual Sport-Mode Active Exhaust
- AT4 Premium Package with Off-Road High Clearance Steps
- LT265/60R20 Blackwall Goodyear Wrangler Territory MT Tires
- Premium Bose 7-Speaker Sound System with SiriusXM 360L
- Heated and Cooled Leather Seats
- Wireless Apple CarPlay and Android Auto
- 15" Multicolor Head-Up Display
- Automatic Emergency Braking and Lane Keep Assist
- Auto-Locking Rear Differential with Off-Road Suspension
- HD Surround Vision with Bed View Camera
- Integrated Trailer Brake Controller with Hitch Guidance
- Ultrasonic Front and Rear Park Assist

Built on a foundation of refined engineering, this Sierra 1500 AT4 combines raw power with intelligent design. The 6.2L EcoTec3 V8 delivers 420 horsepower and 460 lb-ft of torque, while the dual sport-mode active exhaust system allows you to customize your driving experience. Whether you're navigating city streets or tackling off-road terrain, the auto-locking rear differential and off-road suspension keep you in complete control.

Inside, the cabin reflects careful attention to detail and driver comfort. The heated and cooled leather seats with 10-way power adjustment accommodate long drives with ease. The 15-inch multicolor head-up display projects essential information directly into your line of sight, while wireless charging and multiple USB ports keep your devices powered throughout the day.

Technology integrates seamlessly into your driving experience. The premium Bose audio system paired with SiriusXM 360L trial subscription delivers exceptional sound quality. Wireless Apple CarPlay and Android Auto compatibility ensure your smartphone connects effortlessly, and the integrated trailer brake controller with hitch guidance makes towing straightforward and confident.

Safety features work actively to protect you and your passengers. Automatic emergency braking, lane keep assist with lane departure warning, and rear pedestrian detection provide multiple layers of protection. The HD surround vision camera system offers 360-degree awareness, while ultrasonic park assist guides you into tight spaces with precision.

This white 2026 Sierra 1500 AT4 carries a clean Carfax as a one-owner, non-smoker local trade. With just over 500 miles on the odometer, it's ready to serve you for years to come.

"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!