2026 GMC Sierra 1500

Meet the 2026 GMC Sierra 1500 AT4, a refined full-size truck engineered for those who demand capability without compromise. This White AT4 delivers the performance, technology, and craftsmanship you expect from GMC's premium truck lineup.

- 13.4 Diagonal Color Touch Screen GMC Premium Infotainment
- Wireless Apple CarPlay and Android Auto
- HD Surround Vision with Rear Camera Mirror
- Multicolor 15 Diagonal Head-Up Display
- EcoTec3 6.2L V8 Engine with 420 hp and 460 lb-ft of Torque
- Dual Sport-Mode Active Exhaust
- Technology Package with Bed View Camera
- AT4 Premium Package with Off-Road High Clearance Steps
- Off-Road Suspension and Auto-Locking Rear Differential
- Heated and Ventilated Leather Front Seats
- Premium Bose 7-Speaker Sound System
- SiriusXM with 360L Trial Subscription
- Power Sunroof
- Wireless Charging
- Trailering Package with Integrated Trailer Brake Controller

The 6.2L EcoTec3 V8 with Dynamic Fuel Management produces 420 horsepower and 460 lb-ft of torque, paired with a 10-speed automatic transmission and 4WD capability. This truck achieves 15 city and 19 highway MPG, balancing power with efficiency for everyday driving and weekend adventures alike.

Inside, you'll find a driver-focused cabin with the 13.4-inch color touchscreen infotainment system as the centerpiece. Wireless Apple CarPlay and Android Auto integration keeps you connected seamlessly, while the Premium Bose sound system ensures your drive is accompanied by quality audio. The Multicolor Head-Up Display projects vital information directly into your line of sight, reducing distractions and enhancing safety.

The AT4 Premium Package elevates your off-road capability and on-road comfort with off-road high clearance steps, off-road suspension, and an auto-locking rear differential. The heated and ventilated leather front seats provide comfort in any climate, while comprehensive technology like HD Surround Vision, rear cross traffic braking, and rear pedestrian detection work together to keep you aware of your surroundings.

Storage and utility are thoughtfully integrated throughout. The spray-on bedliner with GMC logo protects your cargo, while 120-volt power outlets provide convenient charging options. The bed view camera helps you navigate tight spaces, and the integrated trailer brake controller makes towing and trailering manageable and confident.

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