Used GMC SUVs for sale near Mastic, NY

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

As we age, our reaction time may become slower. This vehicle is loaded with features that make me a safer driver. It connects wirelessly with my iPhone for hands-free Apple CarPlay. Love that! And the Acadia is a dream to drive. It’s the perfect size for me and my family

The buying process was easy. I came in and ordered my silverado 1500. The bad part wasn't the dealers fault but I placed the order on December 24, 2024. It came in April 28th , 2025. That was over a 4 month wait. That is way too long .

I love my Acadia Denali. It is fully loaded with anything you can think of.I love the V6 engine and how smooth it drives and rides

Buying a used car from Hertz was made very easy by Jeremy W. in Smithtown, Drove my new car home that same day. Very happy with my purchase, car drives great. Would have given 5 star and will change all to 5 star when I am given the extra key and booklet. The only snag in the purchase was I was given one key and no booklet for the car. Jeremy claims he has ordered both for me, Thank you Jeremy.

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 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.

We purchased the Denali Terrain 2023. The car is great. I have had four knee surgeries and needed a car to get in and out easily and comfort seating. The controls for adjusting the seat just the way you like are great. I am troubled also by back problems and totally love the heated seat when needed. Sometimes I just want to ride around and turn the heat on and adjust seat so my back feels better. The different controls and are numerous. I love the safety control warnings and info with traffic. The screen is fabulous and helps so much. When ever I park I like to drive in and park and then hold on brake put it in reverse so the screen then comes on and shows how I parked. I like the levers in cargo area for putting seats down and also like how flat they sit. Plenty of room. The back seat is roomy even when person in front is back. Enjoy being up higher than a vehicle. I feel I can see more and it also makes me feel safer. The Terrain looks beautiful and love all the chrome in front. The car seems bumpy but not as bad as our last. The roads are in rough shape here. It has a lot of pick-up my husband demonstrated that to me and he wont be doing that again unless it is necessary. It is a turbo 4 cylinder and can not believe the power you feel. All in all Iove the car and getting good mileage. Purchased car from Boucher in Waukesha. They were not pushy. Explained everything in detail and were very fair. Great place to purchase!

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.

We are very happy with our Terrain Denali. Our first choice was the 2023 Lincoln Corsair 1a but there are no in inventory. The Terrain Denali was 1b. Great styling exterior and interior

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.

Stacey, a service person was very helpful. My 2024 caligaphy needed a new transmission. As promised gave me a loaner car. She and the staff were very friendly.

I love my car. I love the way it handles, and the confidence I have in it when I’m on the road. The room in it is fantastic. All the room I need for when we travel.

I had a great sales expierence with ralphy sales manager and andrew in sales got my dream car

I bought this 2017 Tahoe w LT trim new. Have 60K on it now and have had no issues with it. We are not towing with it or doing high speed racing so we find the 5.3L Motor is smooth and quiet (and have not had any lifter issues which others have reported). Transmission and suspension also smooth. We keep Michelins on all our vehicles and have found this Tahoe very quiet and comfortable for road trips with 4-6 people and luggage. The LT trim pkg deleted some comfort items I wish I had (like heated steering wheel) but it still is pretty much leather-and-loaded so it was a good value at the time. I have had Suburbans for 35yrs before purchasing this Tahoe and I will probably go back to a Suburban for the extra cargo space when I trade this Tahoe in. But this has been a nice and reliable vehicle for us. No complaints.

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

Purchased new in October 2024. Total miles driven 9,276. Just completed a 4,734.2 mile trip through 9 states. Just a pleasure to drive. My wife and I were on the road 16 days, with only 8 driving days, longest day was 674 miles. Average driving speed was about 72+ miles per hour. Seat comfort was amazing, no discomfort, great considering having 4 back surgeries. Very solid on the road with little or no driving fatigue. Performance was great. Of the total miles, about 500 were in town driving and 300 miles was in 4x4 in a snow storm coming across Northern Texas in April. Average MPG was 26.4 with my best 500mile drive at 33mpg. The diesel engine is very quiet requiring me to check the tach sometimes to be sure I had pressed the off button. Very quiet on the road as well. This is my first diesel and I would highly recommend it. Plenty of power, great fuel economy, quiet and very responsive when you need that quick acceleration. amazingly nimble for a big SUV. The adaptive cruise works great. My previous GMC was a 2009, 6.2L V8 Yukon XL. I drove that one 140K miles over 14 years with nothing but routine maintenance, a great vehicle as well. Very happy with this 2024

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.

I have enjoyed my vehicle. It is comfortable and drives very well. I like the color also. It is very roomy, takes off fast and the safety features are very beneficial.

Got it for the ride ,comfort,great gas mileage on trips,can do a 750 mile trip and not be warn out from the ride.Can carry a lot of stuff .All the different options are great

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.

Ordered a 2023 GMC Yukon XL Denali Diesel 4 wheel drive in March of 2023. Took GM 5 months to pick up the order even though I adjusted a few minor options that were on constraint to have the order picked up (these were items I could purchase the parts and have the dealer install such as illuminated GMC emblem, Denali door sills, illuminated GMC cargo sill, cross rails for roof carrier). I wanted the diesel for the mileage and longevity. I am very satisfied with everything with the vehicle so far. Ordered the 20 inch rims/tires for a better ride. The ride quality is remarkable, so smooth. I drive a combination city/rural each day and I average 25 or more MPG. I have 9000 miles on it so far, and not one single issue with it. It is smooth, quiet, and and packed with technology. Goes through the snow with no problem. I have had 7 Suburbans, Yukon XL's and Escalades and in the past, full size Cadillac Broughams, and this is the best riding vehicle out of all of them. I am very satisfied. The only issue is the price has gone through the roof to purchase new. The Suburban and Yukon XL used to be more affordable new. My previous 2015 GMC Yukon XL Denali has an engine issue (camshaft issue even though the oil was changed at the dealer every 3K miles) at 165K miles and I had to trade it in quickly, so the dealer took it on trade when I ordered the 2023, and they wholesaled it. I was not going to buy another one with the 6.2 liter engine again.I really hope the diesel will go for many miles and years, and so far this vehicle has had no problems what so ever. Very glad I made the decision to try it again with the diesel engine this time. If the diesel was not available I would not have bought another GM full size SUV. Classic Painesville Ohio is the best to work with for sales, service and parts. They kept me posted throughout the purchase process and were very fair with the amount for the trade in and purchase price for the new 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.

I fell in love with my GMC Terrain when I test drove it and have not lost that loving feeling! I have received tons of compliments on it.

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!!

25 000 miles on it so far No issues at all Power is fine Bluetooth is terrible Memory seats need work Lumbar is a bad design

Estamos muito felizes com nosso carro muito confortável muita seguro . Dar confiança ao motorista espaço bom para minha família eu minha esposa e dois filhos

Great experience took the ferry over from CT the dealership was about 30 min from ferry my sales rep Mercy was amazing! Most all of the paperwork was taken care of b4 I got there. Everything went smooth & was back on the ferry in my new ride ( audi S8) in a few hrs. Highly recommend Lemans and their exceptional staff to score your next vehicle. I’ll b back for my next score definitely. Thanks Ron

We drove two states over to McKenzie Buick GMC in Milton, FL to meet with Nick and make a purchase on our new Yukon Denali. Customer service was top notch. We were going for their 2019 Yukon Denali to replace a 2008 Tahoe LTZ. We are very pleased with the vehicle. The upgrades are wonderful. Love the cooling seats, the wifi, the HUD and even days after our purchase they have reached out to check on how we were and mailed us a small gift that meant so much. We will definitely use them again if they ever have what we’re looking for on a future purchase. - Brandon Howell 2019 Yukon Denali

Taking it on road trip Oklahoma to Key West Florida w/ stopover in Tennessee. I am getting 30 mpg running 75 mph. It handled like a dream going through Smokie mt. I was getting 32 mpg there. I like the ride on the interstates & I love the adaptive cruise control.