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Used
2021 GMC Sierra 1500 trucks
for sale
near
Allenstown, NH
- 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.






Vehicle information
Features
Reviews
Very easy to work with!
Very easy to work with!!! I found the Honda certified used vehicle that I wanted online. They actually had the salesperson Hunter drive the vehicle to Bedford NH so I could test drive it and they could appraise my trade-in at the same time. I financed through my local credit union so everything came together for me to pick up the car the following Saturday. No pressure, no hassle, no haggling!!! I definitely 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.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Worked with both MATTS they came to what I wanted for a
Worked with both MATTS they came to what I wanted for a payment. It was all done without going to dealership and that saved a lot of time. They were very professional, helpful and courteous though the whole process. The finance dept was smooth and explained all the paperwork for a fast transaction. I leased three vehicles from the new owners and will go back for my fourth. THANKS FOR ALL YOUR GREAT HELP.
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 Elevation
Vehicle information
Features
Reviews
Why shop elsewhere.
I went in for routine maintenance and a minor repair. Service department folks from the desk to the mechanic on the job were, as always, courteous and pleasant. While waiting for work to be done I wandered out to look at vehicles. Had a nice chat with Mr. Poulin and my trusty salesman Aristedes. We talked about a potential trade and once Aristedes and I found the truck I wanted, he immediately went to work for me. Deals are always made with the customer's interest in mind. Our last 3 vehicles, and most likely the next 3, will come from Poulin.
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 SLT
Vehicle information
Features
Reviews
Gary demonstrated the car professionally and answered all
Gary demonstrated the car professionally and answered all my questions usefully. He responded to my offer promptly and we were able to complete my purchase smoothly.
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
I had a very nice experience, seller Victor made me the
I had a very nice experience, seller Victor made me the whole process very easy and above all it is very kind professional deverty q highly recommended!
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 AT4
Vehicle information
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Reviews
2007 Toyota tundra
Got a truck from them bought running boards for the pickup but couldn’t put them on cuz running boards were rotted so called Tim’s an they said bring the truck down an fixed the issue thank you






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
GMC AT4
Great experience at this dealership tired team was great and handled everything that I had a concern with in a timely manner






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Excellent car buying experience.
Excellent car buying experience. Lovely facility. Great staff. They made it easy! Only hard choice was which car to choose. Huge selection new and certified used cars.






GMC Certified
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Seth was a pleasure to deal with and secured a deal in
Seth was a pleasure to deal with and secured a deal in minutes, best experience I've had buying a new vehicle. I will definitely pass the great experience I had with others.






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great customer service and fast efficient work by Team
Great customer service and fast efficient work by Team Nissan. Awesome job all around. Clean facilities with an excellent waiting room. Thank you to all






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great no haggle price and trade best buying experience
Great no haggle price and trade best buying experience I’ve ever had buying new vehicle and this is my 30th!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Fast friendly, and didn?
Fast friendly, and didn?t try to talk me into anything I didn?t want! Thorough as well! Such a great experience! This was my second purchase from Banks and I?ll likely never go anywhere else!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I had a very good experience super easy sales process.
I had a very good experience super easy sales process. The salesman was a no pressure great guy as was the Finance department. Thank you
GMC Certified
2021 GMC Sierra 1500 Denali
Vehicle information
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Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2021 GMC Sierra 1500 AT4
Vehicle information
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Used
2021 GMC Sierra 1500 Base
Vehicle information
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Used
2021 GMC Sierra 1500 Elevation
Vehicle information
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Reviews
I had a great experience-my new car was ready and waiting
I had a great experience-my new car was ready and waiting for me the moment I arrived. The process was smooth, efficient, and hassle-free. Highly recommend for anyone looking for a stress-free car purchase!

Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
So happy with my new car!
I have never loved car shopping but my experience at Tulley was so great. Jen was so awesome to work with, it was like buying a car from a friend. No pressure and felt like I was taken care of from the start of the process to the end. Would highly recommend to anyone in the market for a luxury car.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Excellent customer service!
Bob and Derek were very nice and helpful! Easiest buying process and customer service was excellent!
There are additional matching cars outside your search area.
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Used
2021 GMC Sierra 1500 Elevation
Vehicle information
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Used
2021 GMC Sierra 1500 Elevation
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Vehicle information
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Used
2021 GMC Sierra 1500 Denali
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Used
2021 GMC Sierra 1500 Denali
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Used
2021 GMC Sierra 1500 Denali
Vehicle information
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Used
2021 GMC Sierra 1500 SLT
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Used
2021 GMC Sierra 1500 Denali
Vehicle information
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Used
2021 GMC Sierra 1500 Denali
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 1500 | $36,640 | 1 Good deal |
2024 GMC Sierra 1500 | $34,650 | 19 Good deals |
2023 GMC Sierra 1500 | $35,487 | 13 Good deals |
2022 GMC Sierra 1500 | $38,000 | 12 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 $39,571, 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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Compare the 2021 GMC Sierra 1500
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Used 2021 GMC Sierra 1500 by body style
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