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2026
GMC Sierra 1500
Tailored for Tomorrow — Today
The 2026 GMC Sierra 1500 continues GMC’s legacy of capability and innovation, pairing strong towing and hauling performance with breakthrough tech like available Super Cruise® hands-free driving. With a range of powerful engine options and advanced safety and connectivity features, it’s engineered for both demanding workdays and everyday drives. From rugged off-road trims to refined Denali luxury, Sierra elevates every adventure with confidence and control.
Drive with Confidence
The story of your used vehicle search starts right here. And while there are a lot of options out there, buying a Certified Plus vehicle from GMC means having confidence in your purchase. As you begin your next chapter with a Certified Plus vehicle, you’ll get great benefits that you don’t get with an ordinary used vehicle. That’s because we offer one of the most comprehensive used-vehicle benefits packages in the industry.
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Certified Service Experts Can Help
We made your GMC the superior vehicle it is today and we want to ensure it remains that way. Green Brook Buick GMC technicians are highly trained and certified to perform whatever work you may need on your vehicle. Schedule your next appointment with us today.
Schedule ServiceGreen Brook Buick GMC
Serving GREEN BROOK, NJ
Whatever you need for success on the road ahead, our team here at Green Brook Buick GMC is ready to assist you! Our family-owned dealership has years of experience serving our neighbors here in Green Brook and drivers throughout the central Jersey area, and we'll put that experience to work as we help you with anything you require.
More About UsAddress
101 US HIGHWAY 22 EASTBOUND, GREEN BROOK, NJ 08812
Sales Hours
| Monday | 9:00AM - 7:00PM |
| Tuesday | 9:00AM - 7:00PM |
| Wednesday | 9:00AM - 7:00PM |
| Thursday | 9:00AM - 7:00PM |
| Friday | 9:00AM - 6:00PM |
| Saturday | 9:00AM - 6:00PM |
| Sunday | Closed |
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Green Brook Buick GMC: Quality You Can Trust Since 1999
Getting the chance to grow alongside this community for more than two decades is an honor we're proud of, and we've built many lasting relationships with our customers in that time. Plenty has changed over those years, but our commitment to values like respect and honesty is still clear to see in the quality service we provide to every customer.
Award-Winning Service for Everybody
The high standard we maintain at our dealership has earned us multiple Dealer of the Year and Mark of Excellence awards. We're proud to provide that award-winning service to everyone in our community, with Spanish-speaking team members standing by to assist you.
Highlights from Our Inventory
Sierra
There's a truck for everybody in the Sierra lineup, from the versatile Sierra 1500 to heavy-duty options for anyone who needs some extra engine strength. Along with providing class-leading engine power, these trucks offer cutting-edge technology like the available Super Cruise system to take your experience to the next level.
Terrain
The Terrain is a small SUV that packs big-time capability. The turbocharged 1.5-liter engine and traction select system will give you the capability you need to tackle any situation.
Acadia
Perfect for your next road trip or family vacation, the Acadia has plenty of room for all the passengers and cargo you need to bring with you. The expanded cargo area of newer models gives you up to 97.5 cubic feet of storage space to work with, ensuring you never have to leave anything behind.
Encore GX
Once you see the sophisticated design that the Encore GX puts on display, you'll instantly understand that this vehicle has something special to offer. You'll look stylish arriving at your next destination and you'll get there efficiently too, with the Encore GX getting up to 31 miles per gallon.
Yukon
Everything you could want in your next SUV is waiting for you in the Yukon. Those who desire first-class luxury need to check out the Yukon Denali Ultimate, which offers high-end features like 16-way power front seats with a massage feature to let you ride in comfort.
Service and Financing
Trained Auto Technicians
You can count on us to handle your maintenance and repairs right with the high level of training our service technicians bring to the table. Everyone on our team is fully knowledgeable and ASE-certified, giving them the expertise needed to address any of your vehicle's needs.
Financing Your Future
Regardless of if you've got a great credit score or you're trying to reestablish your credit after a few financial issues in the past, we'll work hard to give you a fair deal. The low rates we offer will help you save money over time so you can get a quality vehicle while keeping your budget in control.