Sales: 732-752-3000    Service and Parts: 732-752-3000
Correction: 2014 GMC Acadia SLE-1 Ultra Low-Mileage Lease for Qualified Lessees $299/month for 39 months. $2,159 due at signing (after all offers).

Specials

Specials

Map and Directions

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Green Brook Buick GMC of New Jersey

Welcome to Green Brook Buick GMC, the #1 GMC dealer in New Jersey for 2009, 2010, 2011, and 2012! We're a convenient drive for nearby Somerville, Hillsborough, and Westfield Buick and GMC shoppers in Somerville and Hunterdon Counties. Whether you are researching a new vehicle, browsing our certified pre-owned inventory, or looking for a reliable service and parts department, our auto dealership has you covered!

Green Brook Buick GMC was founded on traditional values, and because of our family atmosphere every customer gets treated like a family member. No matter how big the challenge is, we promise to always put you, the customer, first. We offer many different buying and lease options, so come in and test drive the vehicle of your choice- no matter what your transportation needs are, we want you to know that Green Brook Buick GMC has a vehicle to meet those needs.

A New Jersey Buick GMC Dealership Serving Hillsborough, Edison, & Westfield Customers

Because we get so many out-of-town customers, we've made it easy for you to do your research here on our website before making the trip to Green Brook. We proudly serve the entire state of New Jersey, and are always happy to see visitors from Edison, Bridgewater, Somerville, and beyond. Please visit the hours and directions page to plan your trip to our Buick and GMC dealership. If you prefer to contact us via the Internet, we would love to hear from you and process your request. Our new internet sales department is capable of processing your request and exceeding your expectations. Simply email our eCommerce Director, Anthony Alparone, at aalparone@greenbrookauto.com or fill out one of the contact us forms via our website and a certified internet sales consultant will respond quickly and efficiently. We have the technology to communicate via instant message, Skype, email, and telephone, regardless of where you are - NJ and beyond. Connect with us via Facebook or Twitter and receive exclusive money saving coupons and advance notice for all upcoming sales events. We look forward to earning your business and making you part of our family!

Green Brook Auto Repair & Parts Department

Our conveniently located Green Brook auto dealership allows us to serve central New Jersey customers with a huge selection of new and used cars, trucks, and SUVs in New Jersey. Here at Green Brook Buick GMC, our highly qualified staff is ready to assist you with the purchase of a Buick or GMC car, truck, SUV, or crossover. In addition, we offer financing, service, and parts. Come find your used or new GMC or Buick at Green Brook Buick GMC. We happily serve everyone from Bridgewater, Hillsborough, Edison, and other nearby areas.

Close to Many Communities all over New Jersey and Hunterdon County

We have a wonderful selection of new and used cars, trucks and SUVs here at Green Brook Buick GMC, so if you are looking for a pre-owned GMC or Buick car or truck in New Jersey, then you have come to the right place. Check our used inventory right here on the site! Green Brook Buick GMC is the #1 Buick GMC dealer in the state of New Jersey. Need directions from Somerville, Hillsborough, or other communities? Check our map.

Customer reviews

4.8 / 5

Dealer Rating

Our average rating from our customers is

4.8 / 5

Read Reviews

  • Lucerne Customer reviews

    Service reps were courteous, car was taken in for service promptly, waiting area is clean and comfortable, work was completed on time.

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  • Sierra 2500HD Classic Customer reviews

    Steve my service advisor and Roger my diesel Sierra 2500HD truck mechanic are outstanding in their fields!!!!! It is people like these that keep Green Brook GMC at the top of the class!

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  • Acadia Customer reviews

    I love, love love your dealership as well as your service dept. however on my last visit I brought my Acadia in for its first oil change because I received an e mail saying it was due. I was under

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    2014 GMC Acadia
  • Verano Customer reviews

    Great service

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    2014 Buick Verano
  • Acadia Customer reviews

    Always so pleased to be greeted by name and to have my service completed in a timely fashion. Experience is almost enjoyable!

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    2013 GMC Acadia
  • Acadia Customer reviews

    I continue to return to the Greenbrook GMC Dealer because I find that my service representative has always provided excellent recommendations and service. Steve Sharkey is an excellent representative

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    2009 GMC Acadia
  • LaCrosse Customer reviews

    Tony, Ricky & Amanda made me felt like a new customer. They are alway's polite and answer all my concerns.

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    2013 Buick LaCrosse
  • Acadia Customer reviews

    for the most part all went well...technician was advised that AC is struggling in hot conditions prior to appointment; a possible leak was detected. he is aware that it's still struggling & must be re

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    2010 GMC Acadia
  • Enclave Customer reviews

    I love the Greenbrook dealership. The staff is so courteous and professional and always do a great job in the timeframe they quote you. I live in Union and much closer to the Union dealership but I g

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    2011 Buick Enclave
  • Enclave Customer reviews

    very satistified

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    2014 Buick Enclave