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Generation Buick GMC

(19 reviews)
Visit Generation Buick GMC
Sales hours: 9:00am to 8:00pm
Service hours: 7:30am to 5:00pm
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Sales Service
Monday 9:00am–8:00pm 7:30am–8:00pm
Tuesday 9:00am–8:00pm 7:30am–5:00pm
Wednesday 9:00am–8:00pm 7:30am–5:00pm
Thursday 9:00am–8:00pm 7:30am–5:00pm
Friday 9:00am–8:00pm 7:30am–5:00pm
Saturday 9:00am–7:00pm 7:30am–5:00pm
Sunday 11:00am–4:00pm Closed
New (631) 977-7603 (631) 977-7603
Used (631) 977-7651 (631) 977-7651
Service (631) 714-2481 (631) 714-2481

Inventory

See all 268 vehicles from this dealership.

About our dealership

Every Purchase with Us Includes: 1 Year of Free Oil Changes Complimentary Car Washes with Service Appointments Service Loaner Programs Pick Up Shuttle Service With the Largest Selection of Pre-Owned Vehicles on Long Island The Generation Auto Group Difference Buy with Confidence Up Front Pricing The Price You See is the Price You Pay! No Added Fees No Hidden Dealer Prep Fees

Service center

Phone number (631) 714-2481

Service hours

Monday
7:30am–8:00pm
Tuesday
7:30am–5:00pm
Wednesday
7:30am–5:00pm
Thursday
7:30am–5:00pm
Friday
7:30am–5:00pm
Saturday
7:30am–5:00pm
Sunday
Closed

Reviews

(19 reviews)

A dealership's rating is based on all of their reviews, with more weight given to recent reviews.

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Exceptional! The salesman Bryan Bannon was very helpful answering all questions and helping us make our decision on what vehicle would be best for us.

Exceptional! The salesman Bryan Bannon was very helpful answering all questions and helping us make our decision on what vehicle would be best for us.

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
5.0
  • Does recommend this dealer
  • Shopped for a new car
  • Did make a purchase
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If you are considering doing business with Generation GMC, be very careful — especially when it comes to trade-ins and lease payoffs. We traded in a 2022 Chevrolet Silverado on February 21st while leasing a 2026 GMC Sierra. We were clearly and repeatedly told by our salesperson that the dealership would handle the lease payoff through Jovia (Fusion), including remaining payments before the March 6th due date. That never happened. For over a month, we were given false information and reassured that everything was taken care of. Meanwhile, Jovia/Fusion had no record of any communication or payment from the dealership. The reality: Two missed payments were reported, damaging my husband’s credit We received a DMV notice that the registration was expiring We have now received a collections letter due to their failure to act The vehicle wasn’t even processed — it was sitting in the back of the lot, not listed for sale Only after physically going to the dealership on April 7th did they admit fault and send the payoff. Even more concerning, when we escalated this to management, they responded once to schedule a call — and then completely stopped responding. This goes far beyond poor customer service. This is a failure to handle financial obligations responsibly, and it had real consequences for us. It is extremely disappointing because the initial buying experience was positive, but the lack of accountability afterward completely changed our view. We will not be returning and strongly caution others to ensure every detail is handled properly before leaving this dealership.

If you are considering doing business with Generation GMC, be very careful — especially when it comes to trade-ins and lease payoffs. We traded in a 2022 Chevrolet Silverado on February 21st while leasing a 2026 GMC Sierra. We were clearly and repeatedly told by our salesperson that the dealership would handle the lease payoff through Jovia (Fusion), including remaining payments before the March 6th due date. That never happened. For over a month, we were given false information and reassured that everything was taken care of. Meanwhile, Jovia/Fusion had no record of any communication or payment from the dealership. The reality: Two missed payments were reported, damaging my husband’s credit We received a DMV notice that the registration was expiring We have now received a collections letter due to their failure to act The vehicle wasn’t even processed — it was sitting in the back of the lot, not listed for sale Only after physically going to the dealership on April 7th did they admit fault and send the payoff. Even more concerning, when we escalated this to management, they responded once to schedule a call — and then completely stopped responding. This goes far beyond poor customer service. This is a failure to handle financial obligations responsibly, and it had real consequences for us. It is extremely disappointing because the initial buying experience was positive, but the lack of accountability afterward completely changed our view. We will not be returning and strongly caution others to ensure every detail is handled properly before leaving this dealership.

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
1.0
  • Does not recommend this dealer
  • Shopped for a new car
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Still waiting for my purchase to be completed. I purchased my vehicle a few weeks ago and still have not received half of my floor/cargo mats or my optional equipment. I did not haggle over the price of the vehicle but have not received what I paid for. I would not recommend this dealership. Quick to take the money and slow to make good on the purchase.

Still waiting for my purchase to be completed. I purchased my vehicle a few weeks ago and still have not received half of my floor/cargo mats or my optional equipment. I did not haggle over the price of the vehicle but have not received what I paid for. I would not recommend this dealership. Quick to take the money and slow to make good on the purchase.

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
2.0
  • Does not recommend this dealer
  • Shopped for a new car
  • Did make a purchase
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I recently purchased a GMC Acadia from Generation GMC, the salesperson was Chris Oliveto He was knowledgeable about all the different vehicles. He made me feel comfortable. The purchase was just very easy and smooth. I am very happy I took the ride over there. Everyone was kind and helpful. I had a great experience. I never felt pressured to make a purchase.

I recently purchased a GMC Acadia from Generation GMC, the salesperson was Chris Oliveto He was knowledgeable about all the different vehicles. He made me feel comfortable. The purchase was just very easy and smooth. I am very happy I took the ride over there. Everyone was kind and helpful. I had a great experience. I never felt pressured to make a purchase.

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
5.0
  • Does recommend this dealer
  • Shopped for a used car
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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.

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.

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
5.0
  • Does recommend this dealer
  • Came in for service or repair
  • Did not make a purchase
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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.

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.

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
5.0
  • Does recommend this dealer
  • Came in for service or repair
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Great service from Zach. Very knowledgeable and thorough. Will definitely recommend him and Generation Buick GMC to my friends and family.

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

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
5.0
  • Does recommend this dealer
  • Shopped for a new car
  • Did make a purchase
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I recently purchased a car from Generation Buick GMC and I couldn’t be more pleased with the entire experience. From the moment I walked in, the staff made me feel welcomed and valued. The sales team was knowledgeable, patient, and took the time to understand my needs, helping me find the perfect car for my lifestyle and budget. The process was seamless, and I appreciated that they were transparent with pricing and financing options. I never felt pressured, which made the decision-making process much easier. I highly recommend this dealership.

I recently purchased a car from Generation Buick GMC and I couldn’t be more pleased with the entire experience. From the moment I walked in, the staff made me feel welcomed and valued. The sales team was knowledgeable, patient, and took the time to understand my needs, helping me find the perfect car for my lifestyle and budget. The process was seamless, and I appreciated that they were transparent with pricing and financing options. I never felt pressured, which made the decision-making process much easier. I highly recommend this dealership.

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
5.0
  • Does recommend this dealer
  • Shopped for a used car
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The whole team at generation made this a seamless and easy transaction. Only ones that had the specific truck i wanted, and were willing to work with me. Will be back for service when the time comes.

The whole team at generation made this a seamless and easy transaction. Only ones that had the specific truck i wanted, and were willing to work with me. Will be back for service when the time comes.

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
5.0
  • Does recommend this dealer
  • Shopped for a new car
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Every one is so kind and helpful. Our salesperson Joe Rossetti made us feel like family. Great experience!! We will be back here when we need another car!

Every one is so kind and helpful. Our salesperson Joe Rossetti made us feel like family. Great experience!! We will be back here when we need another car!

Rating breakdown (out of 5):
Customer service
Buying process
Quality of repair
Overall facilities
Overall experience
5.0
  • Does recommend this dealer
  • Shopped for a new car
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