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Used
2021 GMC Sierra 1500 trucks
for sale
near
Bloomfield, 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 Base
Vehicle information
Features
Reviews
What a pleasure to deal with salesman manager number one
What a pleasure to deal with salesman manager number one Would definitely buy another car from them in the future
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.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great service every time
I bring my fleet vehicle here for repairs/maintenance. Other dealerships have treated me like a second class customer because the fleet company pays for everything. I have never once felt that way at Sullivan's. They are always kind and have gone above and beyond for me at times. My husband became a loyal customer here because of their great customer service.
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 SLT
Vehicle information
Features
Reviews
Excellent dealership… I enjoyed my expierence.
Excellent dealership… I enjoyed my expierence. Very kind, knowledgeable and informative… would purchase here again.
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 AT4
Vehicle information
Features
Reviews
Warranty work
I would like to thank Andy Keleher and Trioano Auto Group for providing excellent warranty service on my '09 Challenger RT while 1000 miles from home. I brought the car in at 8:00 AM Monday morning with the transmission in "limp-in" mode. I did not have an appointment but they worked me in and diagnosed the problem as a failed speed sensor inside the transmission before 10:00 AM. They located the part in another town and sent a driver to pick it up. I had my car back by 3:00 PM. Troiano's fast service literally saved the rest of my vacation. I have put over 1000 miles on the car since with no problems. This is the way warranty service is supposed to work.
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 AT4
Vehicle information
Features
Reviews
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
Great sales person Tyler used car sales manager never met
Great sales person Tyler used car sales manager never met could’ve came out and introduced himself, but could not say enough about the sales person Tyler thank you again






Used
2021 GMC Sierra 1500 Base
Vehicle information
Features
Reviews
very good .
very good . the pm's that werte compleated were checked off and not everey box was checked off like last time . it i see a box checked off and that service was not required or compleated i will go somplace other than your location. a good pm programhave has certain guidelines to fallow. the person compleating the pm's should not check of a pm that he did not comcomplete, and checked off after completion. i hav worked with vehicle pm programe in the U,S MARINES AND U.S Army and U.S Air Force . alos for the city of chicopee for 30 years. it was unacceptable and quite shocking when i picked up my truck to find all pm check boxed checked . this was not my last pm with you but the one befor. ,






Vehicle information
Features
Reviews
This is my second time leading with Blasius Kia and both
This is my second time leading with Blasius Kia and both experiences have left me feeling extremely satisfied! Everyone I worked with was helpful and listened to what I was looking for and when it came time to paperwork and making the transaction, it was flawless. Would gladly continue to drive an hour to this dealer again for all my car needs






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I arrived to be greeted with friendly staff members.
I arrived to be greeted with friendly staff members. My salesman Kamran was great to work with and we were able to work together and get me into a vehicle I am very happy with.






Vehicle information
Features






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
5 star 5 star
ask for Heidie, she goes above and beyond to get you in a new car !! whole process was fast and smooth like butter. loved it






Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Worked with Steve, didn't end up buying but he was super
Worked with Steve, didn't end up buying but he was super nice and upfront with us. A much better experience than some of the dealers we talked to on this journey.
Certified
2021 GMC Sierra 1500 DENALI
Vehicle information
Reviews
Recently purchased a used Ford Ranger.
Recently purchased a used Ford Ranger. The overall experience of purchasing a vehicle went very smoothly. Our sales rep Dre was very professional and understanding for what we were looking for. Personally looking for and purchasing a vehicle is never fun but I would recommend Marcotte Ford if you?re looking. The have a very extensive selection of new and used vehicles and very competitive pricing. Overall very pleased.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Service is always tops Sales department the best Would
Service is always tops Sales department the best Would recommend to anyone looking for a new, used car or service. Blasius Chevrolet is, by far, the best dealership in Connecticut
There are 20 matching cars close to your year range.






Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali
Vehicle information
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Used
2023 GMC Sierra 1500 Elevation
Vehicle information
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Used
2022 GMC Sierra 1500 AT4X
Vehicle information
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Used
2020 GMC Sierra 1500 Denali
Vehicle information
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Used
2022 GMC Sierra 1500 Elevation
Vehicle information
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Used
2023 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2022 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali
Vehicle information
Features






Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2023 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
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Used
2022 GMC Sierra 1500 SLE
Vehicle information
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Used
2022 GMC Sierra 1500 AT4
Vehicle information
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Used
2022 GMC Sierra 1500 AT4X
Vehicle information
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Used
2023 GMC Sierra 1500 AT4X
Vehicle information
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Used
2020 GMC Sierra 1500 AT4
Vehicle information
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Used
2023 GMC Sierra 1500 AT4
Vehicle information
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Used
2022 GMC Sierra 1500 Elevation
Vehicle information
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 1500 | $39,987 | |
2024 GMC Sierra 1500 | $36,495 | 5 Great deals |
2023 GMC Sierra 1500 | $36,489 | 11 Good deals |
2022 GMC Sierra 1500 | $32,499 | 11 Good deals |
About the 2021 GMC Sierra 1500
Base shown (base trim).
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 16
- Transmission
- 6-Speed A/T
- Engine
- 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability)

How much does the 2021 GMC Sierra 1500 cost?
The 2021 GMC Sierra 1500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 1500 is $39,826, with pricing starting at $17,992.
What is the MPG of the 2021 GMC Sierra 1500?
The 2021 GMC Sierra 1500 offers up to 14 MPG in city driving and 19 MPG on the highway for a combined rating of 16 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle trim, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2021 GMC Sierra 1500?
The 2021 GMC Sierra 1500 compares to and/or competes against the following vehicles:
Is the 2021 GMC Sierra 1500 reliable?
The 2021 GMC Sierra 1500 has an average reliability rating of 3.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 1500 owners.
Is the 2021 GMC Sierra 1500 a good truck?
Below are the Cars.com consumer ratings for the 2021 GMC Sierra 1500.
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
60% of drivers recommend this car
- Comfort 4.2
- Interior 4.2
- Performance 3.8
- Value 3.6
- Exterior 4.3
- Reliability 3.5
AT4 (2 styles)
Style | |
---|---|
4WD Crew Cab 157" AT4 | 4WD Crew Cab 147" AT4 |
Inventory price | |
Starting at $55,900 | Starting at $54,700 |
Combined MPG | |
16 | 17 |
Engine | |
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
Base (7 styles)
Style | ||||||
---|---|---|---|---|---|---|
4WD Double Cab 147" | 2WD Double Cab 147" | 2WD Crew Cab 147" | 4WD Crew Cab 147" | 4WD Crew Cab 157" | 4WD Reg Cab 140" | 2WD Reg Cab 140" |
Inventory price | ||||||
Starting at $37,300 | Starting at $34,000 | Starting at $36,400 | Starting at $39,700 | Starting at $40,000 | Starting at $34,700 | Starting at $30,100 |
Combined MPG | ||||||
19 | 21 | 21 | 19 | 19 | 16 | 16 |
Engine | ||||||
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) | 285.0-hp, 4.3-liter, V6 Cylinder Engine (Flex Fuel Capability) |
Denali (3 styles)
Style | ||
---|---|---|
2WD Crew Cab 147" Denali | 4WD Crew Cab 147" Denali | 4WD Crew Cab 157" Denali |
Inventory price | ||
Starting at $55,800 | Starting at $59,300 | Starting at $59,600 |
Combined MPG | ||
17 | 18 | 18 |
Engine | ||
355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
Elevation (7 styles)
Style | ||||||
---|---|---|---|---|---|---|
4WD Double Cab 147" Elevation w/3VL | 4WD Crew Cab 147" Elevation w/3VL | 4WD Crew Cab 157" Elevation | 2WD Double Cab 147" Elevation | 4WD Double Cab 147" Elevation w/3SB | 4WD Crew Cab 147" Elevation w/3SB | 2WD Crew Cab 147" Elevation |
Inventory price | ||||||
Starting at $44,600 | Starting at $47,200 | Starting at $49,300 | Starting at $43,100 | Starting at $46,400 | Starting at $49,000 | Starting at $45,700 |
Combined MPG | ||||||
19 | 19 | 19 | 21 | 19 | 19 | 21 |
Engine | ||||||
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLE (5 styles)
Style | ||||
---|---|---|---|---|
4WD Crew Cab 147" SLE | 4WD Crew Cab 157" SLE | 2WD Double Cab 147" SLE | 2WD Crew Cab 147" SLE | 4WD Double Cab 147" SLE |
Inventory price | ||||
Starting at $47,100 | Starting at $47,400 | Starting at $41,400 | Starting at $43,800 | Starting at $44,700 |
Combined MPG | ||||
19 | 19 | 21 | 21 | 19 |
Engine | ||||
310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) | 310.0-hp, 2.7-liter, 4 Cylinder Engine (Gasoline Fuel) |
SLT (3 styles)
Style | ||
---|---|---|
4WD Crew Cab 147" SLT | 2WD Crew Cab 147" SLT | 4WD Crew Cab 157" SLT |
Inventory price | ||
Starting at $50,800 | Starting at $47,500 | Starting at $51,100 |
Combined MPG | ||
18 | 17 | 18 |
Engine | ||
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 355.0-hp, 5.3-liter, 8 Cylinder Engine (Gasoline Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) |
*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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Research the 2021 GMC Sierra 1500
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