101 US-22
Dunellen, NJ 08812

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Sales: 732-752-3000

Used Cars: 732-752-3000

Hours Toggle

Sales Department

Sun Closed
Mon 9:00am – 7:00pm
Tue 9:00am – 7:00pm
Wed 9:00am – 7:00pm
Thu 9:00am – 7:00pm
Fri 9:00am – 6:00pm
Sat 9:00am – 6:00pm

Service Department

Sun Closed
Mon 7:00am – 5:00pm
Tue 7:00am – 5:00pm
Wed 7:00am – 5:00pm
Thu 7:00am – 5:00pm
Fri 7:00am – 5:00pm
Sat 7:00am – 4:00pm

Reviews of Green Brook Chevrolet Buick GMC

Overall Rating:

4.2 (out of 5)

94% recommend this dealer

460 total reviews

Showing the most recent reviews from Cars.com and DealerRater.

5.0 (out of 5)

My experience at Greenbrook Chevrolet was absolutely

Reviewed by Zarai Beas from Green Brook Township, NJDecember 31, 2025

My experience at Greenbrook Chevrolet was absolutely amazing. They made the car buying experience so simple and were very clear the whole time. I would highly recommend those looking for a new Chevrolet to come in and ask for Yannie!

  • Does recommend this dealer
  • Shopped for a new car
  • Did make a purchase

Dealer Response

Zarai, we are very happy to have provided you with such a positive experience! Thanks for the recommendation, and have an amazing day!

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Maximum rating = 5

1.0 (out of 5)

Service reps lie and try to upsell jobs with x10 mark ups

Reviewed by john jones from BRIDGEWATER, NJNovember 01, 2025

Service reps lie and try to upsell jobs with x10 mark ups 900.00 to change a serpentine belt that cost 30-50 dollars is just over the top the list goes on but I won't bore you

  • Does not recommend this dealer
  • Came in for service or repair
  • Did make a purchase

Dealer Response

John, thank you for taking the time to leave us feedback about your experience with us. At our dealership we pride ourselves in straight forward, no nonsense, and transparent dealings with our clients. We are interested in learning more about your particular situation. Please reach out to us directly when you have a chance. Charles Johnson Sales Manager charlesj@greenbrookauto.com (732) 752-3000

Overall Facilities N/A

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Maximum rating = 5

1.0 (out of 5)

Dealer sold a car “ as is “ they put on lift for oil

Reviewed by larryleegeeSeptember 14, 2025

Dealer sold a car “ as is “ they put on lift for oil changed and the frame was rooted through, how bad did they need a use car sale to sell vehicle under $10,000 that was clearly a safety risk ? Called to discuss switch managers and played good guy bad guy sales manager, if everything go’s well buying from that great, but any issues good luck dealing with unethical business

  • Does not recommend this dealer
  • Shopped for a used car

Overall Experience 1

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Maximum rating = 5

About Green Brook Chevrolet Buick GMC

Why should you buy from Green Brook Buick GMC? Our unmatched service and diverse Buick GMC inventory have set us apart as the preferred dealer in Green Brook. Visit us today to discover why we have the best reputation in the Green Brook area.

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