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*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
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New and used
2026 GMC Sierra 1500 Denali trucks
for sale
near
Glenwood Landing, NY
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Stanley is amazing always keeping me updated and make
Stanley is amazing always keeping me updated and make sure my truck is always returned in better condition than it was. They are a great dealer

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Wil did a great job in keeping communication with me
Wil did a great job in keeping communication with me throughout the process. Great process, and I’m very happy with the truck.

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Service
Sean my service provider was excellent and insured my interaction with the service department went smoothly.

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great purchase experience
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.




New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great spot
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




New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I had a great experience at Generation Buick GMC with Joe
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.




New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great service from Zach.
Great service from Zach. Very knowledgeable and thorough. Will definitely recommend him and Generation Buick GMC to my friends and family.






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Staff was very helpful and informative , I was able to
Staff was very helpful and informative , I was able to locate the car I wanted, tell the sales person , and he was able to get me approved and drive out the same day

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
We bought a car for my grandmother.
We bought a car for my grandmother. I just watched. They spoke softly with her, never rushed, explained clearly, and didn’t talk down to her. That respect meant a lot.




New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Wow what a complete difference in professional service
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.






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Stanley in the service department was great, as is
Stanley in the service department was great, as is everyone at RVC GMC! Had the oil changed while I waited, and it was done promptly as promised.






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Only thing I have to say is I wish I had purchased my
Only thing I have to say is I wish I had purchased my Sierra truck from this dealership. I drove pass my purchase dealership just to do business with Rockville Center GMC Andy Melo and crew did a splendid job on getting me in and out and safely on my way.
New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great deal.
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.
New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Buying my Buick was a great experience, they give you
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!!
New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Jim Kelly is an excellent salesman.
Jim Kelly is an excellent salesman. We went to buy a pre-owned XT5 or XT6 and he was so patient with us and just made the whole experience a Real Pleasure.
New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
There are additional matching cars outside your search area.
Partial matches are generated by applying your search criteria to a larger search area. Our goal is to help you discover additional cars that match your search preferences.
As a benefit to some of our dealer customers, we display their listings first.






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2026 GMC Sierra 1500 Denali
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New
2026 GMC Sierra 1500 Denali
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2026 GMC Sierra 1500 Denali
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2026 GMC Sierra 1500 Denali
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2026 GMC Sierra 1500 Denali
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*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Elevation
92 listings starting at $49,490
-
GMC Sierra 1500 2026 Denali
36 listings starting at $73,005
-
GMC Sierra 1500 2026 SLT
23 listings starting at $62,390
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.