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Discover the capability and refinement of the 2026 GMC Sierra 1500 AT4, a truck engineered for those who demand both power and sophistication on every journey.
- 4X4 with Auto-Locking Rear Differential and Off-Road Suspension
- Adaptive Cruise Control and Lane Keep Assist
- Heated and Cooled Leather Seats with 10-Way Power Driver Adjustment
- Premium Bose 7-Speaker Sound System with SiriusXM 360L Trial
- Apple CarPlay and Android Auto Integration
- Multicolor 15" Head-Up Display with Rear Camera Mirror
- Technology Package with Bed View Camera and Surround Vision
- Remote Start and Push Button Start
- Power Moonroof with Power Sliding Rear Window
- Spray-On Bedliner with GMC Logo
- Off-Road High Clearance Steps
- Wireless Charging and Multiple USB Ports
- Integrated Trailer Brake Controller with Hitch Guidance
- Front Collision Warning and Automatic Emergency Braking
- Lifetime Powertrain Warranty
This silver AT4 sits on 20-inch machined aluminum wheels and combines rugged capability with premium comfort. The 3.0L I6 engine with 10-speed automatic transmission delivers efficient performance, achieving 22 city and 26 highway MPG. With just 8,768 miles and a clean Carfax history as a one-owner vehicle, this truck remains virtually new and ready for work or weekend adventures.
The AT4 Preferred and Premium Packages showcase GMC's commitment to off-road readiness. Hill Descent Control, all-terrain suspension tuning, and heavy-duty construction ensure confidence on any terrain. The spray-on bedliner protects your investment, while red recovery hooks and off-road steps enhance capability and access.
Inside, the cabin reflects premium truck design. Leather seating surfaces, heated and ventilated front seats, and a heated steering wheel provide comfort in any season. The power moonroof floods the cab with natural light, while the head-up display keeps critical information in your line of sight. Wireless Apple CarPlay and Android Auto keep you seamlessly connected to your devices.
Safety technology throughout this Sierra prioritizes your confidence. Front collision warning, automatic emergency braking, lane keep assist, rear cross traffic braking, and rear pedestrian detection represent a comprehensive approach to driver awareness. The surround vision system provides enhanced visibility, while the backup camera with bed view enhances maneuvering precision.
Trailering capability is built into this truck's DNA. The integrated trailer brake controller, hitch guidance, trailer side blind zone alert, and in-vehicle trailering app eliminate guesswork when towing. A 120-volt bed-mounted power outlet supports equipment needs at your job site or campsite.
The combination of whisper-quiet Bose audio, dual-zone climate control, and technology integration makes every drive rewarding. This is a Sierra AT4 that refuses to compromise delivering truck capability without sacrificing the refinements today's drivers expect. Schedule your test drive today.
Garber Buick GMC is part of the family owned and operated Garber Automotive Group, and is proud to serve drivers all along the Treasure Coast with quality vehicles. Whether you're looking for the latest Buick and GMC vehicles on the market or your current vehicle is in need of service, you can trust the experts at Garber Buick GMC to have your back. That's why we always say, ''You'll do better at Garber!''