Used GMC cars for sale near Port Jefferson Station, NY under $899,990

I had THE best experience at Carmax...the salespeople were non-pressuring, helpful and just amazing (especially Daniel!). They went out of their way to make every step comfortable and unpainful. I will most definitely go there when I need to buy my daughter a car and when I need to upgrade in a few years!

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!

Jennifer has been taking care of me whenever their's a problem with my car. She's very nice and cares about her customers.

Our 2021 Terrain SLT is really a nice auto. Gets great 30 MPG approximately, But, 0 to 60 is lacking horsepower. Great Little highway auto. Comfortable.....

Easily one of the smoothest & most trustworthy transactions I’ve ever experienced with a car purchase! Will never go anywhere else moving forward. Dejon N. was kind, knowledgeable, and very patient as I asked a ton of questions. Financing staff equally as lovely & incredibly helpful. Highly recommend this location! Thank you!

This truck is the truck that all others should look up to. It rides great, will tow a house, runs smooth, and gets great fuel economy. The Allison transmission is so smooth. The AT4 looks great too.

My guy Victor had me in and out in no time excellent experience! Go there

Has a really Big feel to it. I currently use mine to pull gooseneck trailer. I haven't had a load yet that I couldn't pull. The downsides to this truck is to me I feel it could get better fuel mileage. Also I had trouble with #4 injector...dealership replaced it. Now my AC doesn't work all the time. Although it sounds like it's blowing it isn't.

I bought mine in 2017, 2nd owner. It had 36,000 miles on it when I bought it, getting ready to turn a 100,000 miles, and the only thing I've had to do to it, is replace the Def heater, other than that, it's been a great truck. 👍

Bought my 2018 4Runner from them. Good "No haggle" price. In spite of the "Covid" restrictions the process went smoothly. Their "Detail Center" was closed due to the restrictions so they gave me a "We owe" on the cleaning and detail.

I always bought the GMC Acadia (4 times) but decided to try the terrain. I absolutely love it and it's a great car for zipping around in town. I would take it for a weekend trip but not on a long trip as it doesn't have a lot of cab room, but for two people it is fine

I purchased a new 2019 SLT with the X1 package. It has the Red Quartz Tintcoat paint. I usually never leave reviews, but honestly this is the most comfortable, nicest loking truck I've owned , and I've ownwd alot of them. The only issues I've had was the brake software was flawed, took it to the dealer on recall and they installed a new software patch, Other then that I love the styling, performance and the interior is very nice. No regrets

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 have never dealt with not friendly sales people, no high pressure sales pitches just easy to deal with

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?

Donna and Jerry are true professionals. Always helpful, accommodating and informative. Everything is explained thoroughly prior to initiating any work. Highly recommend Riverhead Nissan. Gary C.

One of the most attractive looking t cars GMC has ever designed. Looks just like a Lexus. Extremely roomy. Love every aspect of my Terrain.

Good service friendly staff and professional people. Quick in and out. Loaner vehicle and clean place

Currently, the Hummer EV is a decent electric vehicle option. However, as newer electric vehicles, especially the Cybertruck, are released to the market with longer range and cutting-edge features at a lower price point, the Hummer EV will fall behind. The Cybertruck is anticipated to enter mass production later this year, while GMC's production is slow, putting them at risk of falling behind competitors who may enter the market with newer and better offerings by the time GMC's product is ready for a refresh. Although GMC initially released a good retrofit product, their production delays are gradually eroding the Hummer's competitive advantage.

everything was great. Sales dept. was super. All questions were answered. we were given honest advice. delivery of SUV was handled in a truly professional manner.

I visited on the second day being opened and had a great experience in buying a 2022 Explorer and trading in a 2016. It was seamless. Had an issue with the new car that turned out to be a factory defect that they had Ford correct. All good. I’ll be back.

Bought this truck for my new work truck. Smaller than my old Silverado but looks like it will be just fine. Gets really good gas mileage with the I4 motor.

I thought was very professional and knowledgeable. Chad was my car salesman for my new 2023 Kia Forte. Chad was very professional and knowledgable. I will always reccomend Smithtown Kia to all of my friends.

Just purchased this vehicle a little over a month ago. Love the ride, the comfort of the seats, and, the body style. My only complaint is that it drifts to the right and the steering wheel is several degrees to the left after two trips to the dealer where we purchased it. I will probably have to pay to take it to a known, excellent alignment shop.

Very fast friendly response from internet manager letting me know they just took a deposit and the car I asked about was no longer available. Didn’t push anything else which is nice.

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!

service mgr is great!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I have the 1500 double cab with standard bed. The reason I have this vehicle is I really like the 6.5 foot bed. The crew cab with same bed is just too long. The things I dislike about this model is that it only comes in the SLE model. For the 2025 that means the external mirrors do NOT have a power fold in and it does not have a seat memory for more that one driver. The power fold in for the mirrors is extremely important to me.

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.

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

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 saw this car driving by the dealership and automatically was drawn to it because of its color. GMC calls it brown but one print out called it crystal metallic purple. It changes colors depending on the weather. I love the handling, the dash and all the bells and whistles! My grandchildren love how much room that it has!

Laurie Dunn was a pleasure working with while the dealership was fixing my SUV, she kept me UpToDate with what was going on. All in all, everyone I spoke to while at the dealership was very helpful from the showroom members to service even the valet guy.

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.