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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 trucks
for sale
near
Cos Cob, CT
- 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 SLT
Vehicle information
Features
Reviews
Always reliable and outstanding customer service.
Always reliable and outstanding customer service. Waiting area well stocked and comfortable. Staff friendly and informative, attentive to details and future needs. Service department used modern diagnostic equipment that can be reviewed while waiting

New
2026 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Everything is neat here.
Everything is neat here. In the dealership and in their manner. They gave me a folder, copies of receipts in a sleeve, even a branded pen with a cap. For me, that’s respect.






New
2026 GMC Sierra 1500 Elevation
Vehicle information
Features

New
2026 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
The car was prepared ahead of time: seats covered in
The car was prepared ahead of time: seats covered in plastic, even the key fob battery was fresh.






New
2026 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
GMC in Rockville Center is one of the best car
GMC in Rockville Center is one of the best car dealerships and car repair service places that I have been to in years. The people that work there are top-notch and the work they do is even better. Thanks, GMC Rockville center!






Vehicle information
Features

New
2026 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great experience at the dealership.
Great experience at the dealership. Wilbur was a great salesman helped out with everything I needed. Definitely recommend Wilbur and the dealership to other people.

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Apple play does not work?
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.

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 SLE
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 SLE
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 Ultimate
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 Ultimate
Vehicle information
Features

New
2026 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features

New
2026 GMC Sierra 1500 SLE
Vehicle information
Features






New
2026 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Reviews
Thank you so much!
Thank you so much!! GMC of MahWah!! Knowledge and helpful service, If anyone looking for a car and great deal just go to them and you won’t be disappointed, Shoutout to my SALESMAN!! GERALD PASCUCCI.. He’s the BEST and he will explain everything you need to know and will make your dreams car happen!!






New
2026 GMC Sierra 1500 Elevation
Vehicle information
Features

New
2026 GMC Sierra 1500 SLT
Vehicle information
Features






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great service Stanley did a great job in keeping us
Great service Stanley did a great job in keeping us informed of the process and offered packages based on miles on car. Thank you. Great job
GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 1500 | $39,409 | 1 Good deal |
2024 GMC Sierra 1500 | $41,002 | 12 Good deals |
2023 GMC Sierra 1500 | $35,534 | 6 Great deals |
2022 GMC Sierra 1500 | $35,700 | 14 Good deals |
2021 GMC Sierra 1500 | $30,990 | 8 Good deals |
2019 GMC Sierra 1500 | $23,995 | 6 Good deals |
*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.
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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.