New and used 2026 GMC Acadia SUVs for sale near Cold Spring Harbor, NY

Very helpful service from Petar and extreme transparency very truthful and genuine 👏 looking forward to purchasing from this dealership

if you go to this place ask for Oz... an absolute gentleman, and great salesrep ... very rare you find a man like that in the industry... overall 10/10 experience... never even asked me to write a review but my experience was too smooth not too

I bought my 2025 Sierra EV out of state but am here in Long Island for a few months working and Rockville Center GMC was the only GMC dealership near by who would honor my GMC warranty. They have been great!!

Rob Birchall and the team were great. Was towed in on a Saturday and they were able to diagnose the problem and have me back on the road in 90 minutes.

I had a great experience at Generation Buick GMC with Joe Rossetti. He met all my needs, I will be recommending all of my friends.

My vehicle was being serviced at service center.Staff was very polite.

I stopped buying cars from private sellers a long time ago and mostly use dealerships. This one is among the few where you can buy a used car and be confident it hasn’t been through three auctions and five repaints.

Great service from Zach. Very knowledgeable and thorough. Will definitely recommend him and Generation Buick GMC to my friends and family.

I work with suspension and diagnostics, and clients often bring cars from here for pre purchase inspections. I’ve noticed more than once that most cars from this lot arrive in a just drive condition.

Wow what a complete difference in professional service from Generation GMC in Sayville compared from King O'Rourke in Smithtown. Service department is amazing. They send you a video from the mechanic going over all the concerns that you have any what they found. I was constantly being told my oul leak was a seel. Thanks to Generation GMC they took the time to find the real cause and it's going to take a week to fix. Thank God had the issues at King O'Rourke otherwise I wouldn't have found an amazing dealership. Especially Thanks to Maria for keeping me updated.

I?ve been bringing my truck to the Rockville Centre GMC service department three or four times since purchasing it in 2021, and every visit has been a great experience. The entire service staff is amazing?professional, friendly, and genuinely helpful. The service manager is always around, easy to reach, and makes sure everything runs smoothly. I?m very glad I bought my truck from these guys. It?s a great local dealership, and I highly recommend their service department.

All of the people I?ve dealt with here have been friendly, helpful, professional, and considerate. Unlike most places here they are quicker than expected to finish what they?re working on for you. The whole facility is clean and the waiting room is very comfortable?roomy w/comfortable chairs, TV, charging ports, coffees, hot chocolate, tea, etc.

Rod was very helpful and courteous. He was very knowledgeable and made my purchase very easy. He answered all of my questions with patience. Thank you again

Best experience ever love it at GMC best customer service free WiFi free tea very experienced staff and very knowledgeable staff I love it there

Sean my service provider was excellent and insured my interaction with the service department went smoothly.

John McCoy was a great salesman! He was honest, communicated well, and applied no pressure to make a decision. This dealership was the only one on Long Island that was willing to negotiate a deal on the car I purchased. Every other dealer said that they could not lower the price of the car even $1. This is the third vehicle that I purchased or leased from this dealership and I will return when I am ready for my next vehicle.

Great deal. No gimmicks or nonsense. Thanks Sean for making it such a smooth transaction. When it?s time to for another purchase I will certainly be back.

Buying my Buick was a great experience, they give you time to breath while looking around then approach for help and answer questions! Service area is alway great, always work with you to get the appointment you need! Will be leasing my next car from them for sure!!