Used GMC trucks for sale near Central Islip, NY

Any reviews on this vehicle is not correct. We are first owners and it’s been an excellent truck. We hate to see it go !

They did the most possible deal and more for me. Kevin and manager are so nice and want the best for me. I love the delealership.

Great truck to own. The 2023 GMC Sierra Denali with the 6.2L engine delivers excellent power, smooth performance, and a refined driving experience. The ride quality, interior comfort, and overall build quality are outstanding. I have had no issues whatsoever, and it has been a reliable, enjoyable vehicle from day one. I would highly recommend it to anyone looking for a premium full-size truck.

Ronny Terraferma was amazing. Treated myself and my daughter like family. He was honest and professional throughout the entire process I will definitely will return for my next car!

I love it the look the interior mine is a red one and it looks so good and it’s my baby and it runs so good and the technology is off the chain

We were blown away by the experience. Tia and staff made this the most pleasant purchase we’ve encountered. Tia was so helpful and professional at all times, however she made this a fun, smooth and memorable purchase. We’ll see you all again in the near future.

I bought this after going to the dealer just to look at colors. I had a 2016 Chevy 1500 LTZ that I loved. There was my down payment and took this Denali home. Only 2 options. Paint and moonroof. I thought my chevy with 3.42 gears was quick. This one goes with 3.23's. The ride is great. Fit and finish are perfect. My only complaint is this Bose/Apple play radio is not what the 2016 Bose was.

Tom Cali is an excellent salesman. He is so professional, patient and helpful. We went to buy a pre-owned Lincoln Nautilus or Aviator and he was so patient with us and just made the whole experience a Real Pleasure. We will be recommending everyone we know to go to Bright Bay Lincoln and that is where all of our future purchase will be. Also, Prescott in finance was honest, caring and wonderful too. FANTASTIC EXPERIENCE ! ! !

My 2022 GMC Sierra 3.0 Duramax pickup truck is a good truck. I work on a farm and I also drive an hour to see my girlfriend. For the farm, it has excellent towing capability and for the hour long drive to go see my girlfriend, depending on the weather for traveling, I can get up to 35 miles to the gallon!

Rodrigo is great sales person i buy 3 cars from them good dealer no hiding fees

This truck is the base model and that is exactly what we were looking for. A good solid truck without all the fancy technology. It drives like a dream, handles just as well and the interior is sleek and well designed. Perfect black on black exterior.... a man's truck.

Overall Great Experience from start to finish. Elder and Ralphie communicated with us every step of the way and made the process of buying our car seamlessly. They both were friendly and professional. I would definitely recommend Stream Auto outlet in Islip if you’re looking for a great selection and team. Mark & Jenny

Waiting for the Refreshed 2022 AT4 was well worth it! With all the manufacturing issues today, building and shipping was slow, but understandable. Love the truck and the features! Fit is perfect and quality is #1. Pricing was too high but all vehicles are running this way. You get what you pay for and this truck is perfect! I have owned many trucks and this by far is the best. The latest features are beyond most other makes and GM has thought this truck through from front to rear.

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

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.

This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.

Worked with Jon! He answered all my questions and made the whole process very efficient!

2024 GMC sierra 1500 duramax 3.0 is great truck. Great ride and great MPG. 100% recommend to any prospective buyer. Love the truck and how it perform.

Looked at more expensive truck with less options, bought the GMC SIERRA AT4 Turbo Diesel 6. I now only put fuel im once a month. And long distance trips are easier due to better fuel economy. One of my best investments ever.

The Salesman Jay was very helpful and outgoing to help us find the right vehicle

Stong engine and smooth! Highly recommend for familys or someone who likes a smooth truck. Purchased new and have had zero issues since then. Love it!

I WENT WITH MY DAUGHTER TO TEST DRIVE A NEW RAV4 AND DEALT WITH KARTIK GULATI.HE WAS VERY PROFESSIONAL,HELPFUL AND POLITE.AFTER TALKING WITH K.G.I BOUGHT A RAV4.I AM IMPRESSED WITH K.G.AND EXPERIENCE AT DEALERSHIP

Overall I am very happy with my new Truck. GMC however needs to address their software glitch where the display screen intermittently stops working or the audio cuts in and out. I keep hearing a software update is being worked on but that was a while ago?

Great truck, solid engine, comfortable, smooth, and it handles great for such a large vehicle. Get one and enjoy miles of roadtrips with all you can tow or haul.

Leticia was great! She made everything easier with getting my car. Everyone I spoke to was incredibly nice and always were willing to help with any problem or question I had. Great dealership experience every time I showed up!

Got the duramax diesel and getting 24 city and 32 highway is very good. Truck drives nice and is very comfortable. My 2 issues with this truck is the backup camera at night is useless (very dark) and interior lighting is not very good. You would have thought a 78k truck would have footwell lights, but it doesn’t.

It has been a pleasure working alongside Carlos at stream auto. He and his team made it an easy smooth transition for me to leave there with a great car and a smile on my face thanks again team five stars to Carlos

My husband and I just got a vehicle from Dan and Anthony. They went above and beyond to get something that we was satisfied and we are grateful & very very happy with the sale of the Nissan Versa. Car runs like we just bought it NEW CAR right off the lot. Dan did an excellent job and people that we know that got cars from him were all very happy Especially US.. WANT TO THANK DAN AND ANTHONY VERY MUCH.. We would recommend Best Buy Auto Stop to any and everyone for any vehicle. They go above and beyond for their customers. Thanks again Dan and Anthony.

I've owned this GMC Sierra 1500 All Terrain since it was 8 months old. With the exception of two warranty issues (failing power brake vacuum pump and transmission electrical harness), I have been totally happy with this truck. Up until now, my 1996 Chevrolet K1500 Silverado with it's 5.7L Vortec engine was my favorite truck of all time, this GMC (5.3L LS engine, 8 speed automatice) has earned the top spot now of my all time favorite truck. It is comfortable to drive, and runs as good as the day I bought it over 5+ years ago. I've got 71.5K miles on it. My biggest issue is I wished it had the 6.2L engine for better towing capabilities. Other than that ... love this truck.

Love this place go buy your next car here and not anywhere else at all or you?ll regret it. They have the best deals and the best inventory.

I needed a new pickup and while I wanted a Ford F150 I could not find one set up how I wanted. When I did the Ford dealers didn't want to give what I felt my trade in was worth. I got what I wanted and got a great deal on a 2024 GMC Sierra 1500 Elevation. It is even set up better than the F150's I was looking for and at a better price. I'm very happy with my purchase.

Very Quick and smooth process. Sale agent victor was really nice. Would definitely do business with them again! Thank you again!

I love my 2021 GMC Denali 2500HD. I have gotten more complements on this truck than any other vehicle that I have owned. I get great highway fuel milage average 19-26mpg,which is great for a heavy duty truck!

Received first rate service from my advisor, Lauren! Was able to make the appointment through the website without any issues, which made the experience even better.

So far so good! This truck is the nicest truck I have ever driven. The stance, ride comfort and options are top notch. I went from a 2023 High Country that was having drive train issues but had all the creature comforts that you would expect in a top of the line truck. With the lack of confidence in that particular models 10 speed transmission issues, it became necessary to reestablish my confidence in my General Motors product.