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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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Used
2021 GMC Sierra 1500 trucks
for sale
near
Naugatuck, 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.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Just bought a Colorado from Blasius Branford and
Just bought a Colorado from Blasius Branford and impressed by the quality of vehicle, price and service. Joey Posa and Mike De’Angelo were great to work with—highly recommend
This truck has a jerk when changing gears sometimes.
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.






Vehicle information
Features
Reviews
Mike and Chris were awesome.
Mike and Chris were awesome. Chris in finance was extremely helpful. Would definitely recommend. Great service department also.
Brake Pad Monitor
2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor. Needs new monitor. brakes look great to me. No noises. dealer says parts on order GM strike. Can't replace myself cause of computer...






Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
I've bought 2 cars here and am headed in soon to buy
I've bought 2 cars here and am headed in soon to buy another. THE BEST.
Nicest, best performing truck I've ever owned
My truck has a great appearance, inside and out. It is a pleasure to drive; and rides and performs great. It is the best truck I've ever owned.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I had an outstanding experience purchasing my Cadillac
I had an outstanding experience purchasing my Cadillac Lyriq from Blasius Cadillac. Despite having researched the vehicle extensively through YouTube videos, sales representative Rich Noble took the time to thoroughly explain every detail during my test drive, ensuring I fully understood all the features. When I arrived late due to travel delays from Boston and a previous dealership appointment, the team was incredibly accommodating and flexible with my schedule. The pricing process was refreshingly transparent—we negotiated the complete out-the-door price entirely through email with no hidden fees or last-minute surprises. Most impressively, they coordinated with the Massachusetts RMV and delivered my vehicle directly to my home with plates and registration paperwork already completed, saving me an additional trip back to the dealership. Blasius Cadillac demonstrated professionalism, transparency, and genuine customer care throughout the entire process. Highly recommended!
2021 GMC Sierra Denali
This is the nicest truck I have ever owned. Lots of features. Takes a while to learn what all it does but a really enjoyable vehicle.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
We are happy with the staff and clean environment.
We are happy with the staff and clean environment. Lucas and Rob was really helpful with the purchase.
Great Buy!
This truck is amazing. Turning heads all over as we tour the area. Those riding with is also enjoy the comforts and safety features. Great Buy!

Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Leasing our new Honda was a positive, friendly and
Leasing our new Honda was a positive, friendly and hassle-free experience. Our sales consultant, Tony DeLena, was a pleasure to do business with -- knowledgeable, courteous and willing to go the extra mile to make sure everything was to our satisfaction. I highly recommend him and Honda of Danbury to anyone looking to buy or lease a Honda.
Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
2019 Jeep Compass purchase
Edwin Ocasio was very professional and listened carefully to what I was looking to buy in a vehicle as well as my price range. As I test drove he answered all my questions in detail. After purchasing my Jeep Compass I noticed one issue that needed to be fixed. I brought vehicle in the next day & it was taken care of. Thank you Edwin for all your help. I I am very happy with my purchase.
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Used
2021 GMC Sierra 1500 Elevation
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Used
2021 GMC Sierra 1500 Elevation
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Used
2021 GMC Sierra 1500 Denali
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Used
2021 GMC Sierra 1500 SLT
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Used
2021 GMC Sierra 1500 Elevation
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Used
2021 GMC Sierra 1500 Base
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Used
2021 GMC Sierra 1500 Denali
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Used
2021 GMC Sierra 1500 AT4
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GMC Sierra 1500 prices by year
Model year | Average price | Deals |
---|---|---|
2026 GMC Sierra 1500 | $64,771 | |
2025 GMC Sierra 1500 | $49,476 | |
2024 GMC Sierra 1500 | $48,866 | 11 Great deals |
2023 GMC Sierra 1500 | $47,702 | 6 Great deals |
2022 GMC Sierra 1500 | $41,780 | 19 Good deals |
2020 GMC Sierra 1500 | $32,096 | 9 Good deals |
2019 GMC Sierra 1500 | $32,260 | 7 Good deals |
2018 GMC Sierra 1500 | $25,277 | 9 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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2021 GMC Sierra 1500 by city
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2021 GMC Sierra 1500 in Naugatuck, CT
4 Great Deals out of 27 listings starting at $26,145
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2021 GMC Sierra 1500 in Beacon Falls, CT
3 Great Deals out of 24 listings starting at $26,145
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2021 GMC Sierra 1500 in Prospect, CT
4 Great Deals out of 27 listings starting at $26,145
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2021 GMC Sierra 1500 in Middlebury, CT
3 Great Deals out of 26 listings starting at $26,145
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2021 GMC Sierra 1500 in Waterbury, CT
4 Great Deals out of 27 listings starting at $26,145
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2021 GMC Sierra 1500 in Bethany, CT
4 Great Deals out of 26 listings starting at $26,145
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2021 GMC Sierra 1500 in Oxford, CT
3 Great Deals out of 24 listings starting at $26,145
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2021 GMC Sierra 1500 in Oakville, CT
4 Great Deals out of 27 listings starting at $26,145
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2021 GMC Sierra 1500 in Seymour, CT
3 Great Deals out of 23 listings starting at $26,145
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2021 GMC Sierra 1500 in Cheshire, CT
4 Great Deals out of 27 listings starting at $26,145
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2021 GMC Sierra 1500 in Cheshire Village, CT
4 Great Deals out of 27 listings starting at $26,145
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2021 GMC Sierra 1500 in Wolcott, CT
4 Great Deals out of 27 listings starting at $26,145
2021 GMC Sierra 1500 by body style
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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.