2026 GMC Sierra 1500

At McKenzie Buick GMC, we've proudly served Milton, FL and the surrounding communities since 1967. As a family-first dealership, we believe in doing business the right way—with transparent pricing both online and in-store, no surprises, and no games. Come experience the McKenzie Advantage and see why generations of customers say, We Are McKenzie.

- 13.4 DIAG COLOR TOUCH SCREEN GMC PREMIUM INFOTAINMENT
- WIRELESS APPLE CARPLAY AND ANDROID AUTO
- 6.2L V8 (EcoTec3) (Includes Dynamic Fuel Management) (Requires (NPP) Dual, Sport-Mode Active Exhaust Enabled) (420 hp [313 kW] @ 5600 rpm, 460 lb-ft of Torque [624 Nm] @ 4100 rpm)
- AT4 CarbonPro Edition
- AT4 Preferred Package
- AT4 Premium Package
- Technology Package
- MultiPro Tailgate Audio System by Kicker
- Universal Home Remote
- Carbon Fiber Composite Bed
- CarbonPro Fender Hard Badge
- Off-Road High Clearance Step
- Bed View Camera
- Multicolor 15 Diagonal Head-Up Display
- Rear Camera Mirror
- Power Sliding Rear Window with Rear Defogger

This 2026 GMC Sierra 1500 AT4 is equipped with an impressive 6.2L V8 EcoTec3 engine that delivers 420 horsepower and 460 lb-ft of torque, mated to a smooth-shifting 10-speed automatic transmission. The Sierra AT4 is designed for off-road adventures, with features like an off-road suspension, auto-locking rear differential, and red recovery hooks. Inside, you'll find premium amenities like a 13.4-inch color touch screen, wireless Apple CarPlay and Android Auto, a Bose premium sound system, and a class-leading 15-inch head-up display.

The CarbonPro Edition takes the Sierra AT4's capabilities to the next level, with a lightweight, durable carbon fiber composite bed, CarbonPro fender badging, and an off-road high clearance step. The AT4 Preferred Package and Premium Package add even more convenience and luxury, with features like heated and ventilated front seats, a heated steering wheel, and a power sunroof.

With just 4 miles on the odometer, this Sierra AT4 is practically brand new and ready to take on any adventure. Experience the uncompromising capability, premium features, and rugged good looks of the 2026 GMC Sierra 1500 AT4 today at McKenzie Buick GMC.

Thank you for visiting McKenzie Buick GMC. Proudly serving the Milton community since 1967, we're committed to delivering a straightforward, transparent buying experience every step of the way. Conveniently located near Blackwater Bay at 6500 Caroline Street (Highway 90 at the Highway 89 Bypass), we offer a full selection of competitively priced new and pre-owned cars, trucks, and SUVs. Whether you're shopping, servicing, or ordering parts, our team is here to help with no surprises—just honest, reliable service. Reach out anytime or come experience the McKenzie Advantage for yourself.