New and used 2025 GMC HUMMER EV Pickup trucks for sale near Roslyn Harbor, NY

I made a last minute appointment and was accommodated in a timely fashion. The service was excellent. I wax just in there for an oil change and a tire rotation and it was cheaper at the dealer then on the outside.

The dealer was great. But the apple play in my 2024 Sierra is not yet supported. What the xxxx is that about? How the heck can you sell an incomplete vehicle? I?d like to know when it will be fixed. And it better be soon.

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!!

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

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

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 highly recommend the entire team! Petar was very responsive right from the initial call. He put the vehicle on hold for me 2 days ahead knowing that I was driving 5 hours from Maine to drive and potentially buy. When I arrived, it was fully detailed and sitting right up front. There was a mechanical issue that my husband found. Lloyd entered the picture. Lloyd immediately drove it down to the service department, they diagnosed and fixed immediately. It took a couple of hours....but the guys gave us a recommendation for pizza and bought our lunch. Gene jumped in on the tech side and got me all set with the app and answered all of my questions. Ashley in finance was also really helpful and got our paperwork done quickly!! Overall 7 out of 5 rating! Everyone worked well together, treated us VERY well, were honest and most importantly, authentic. Call Petar and team for your next car!!!