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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
Union City, GA
- 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
My Perfect Camaro
Great place. Great people. great car. Allen and vic did everything amazingly. Worked hard to get me a good deal. Ri go was exceptionally enjoyable,friendly, and accomidaring.
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
The service department was awesome.
The service department was awesome. Lamarcus Tenny checked to make the service visit was top notch. I plan on bringing my car back in the future!
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
The automated system is annoying but the sales staff were
The automated system is annoying but the sales staff were great! Shout out to Kenneth and Abe
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
bought my car
here at Gravity you are in good hands. rest assured you will drive home with your new vehicle . adam in sales is who you should look for indeed
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
Richard Smith
Richard Smith is a great Service Advisor. He is very professional and takes great care of the service on my Ford Explorer. He keeps me informed on present or future service that is needed to keep my vehicle in great condition. My appointments are always timely. He is awesome....the very best!
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!






Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Reviews
Customer
I just had the best car purchase experience ever at Hardy Family Ford. Paul McGee made my purchase process easy and I would highly recommend working with Paul. Thank you for making a “could be” stressful day completely stress free!






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great learning experience
I worked with Brett and Daniel. They both were extremely helpful and informative. Although I did not end up purchasing a vehicle here, they were professional and genuinely wanted to help me find what was best for me. Highly recommend this dealership.






Vehicle information
Features
Reviews
You are NOT pressured to buy and treated like FAMILY once
You are NOT pressured to buy and treated like FAMILY once you do. Trevor was patient and informative during the buying process. Autumn kept us informed during recalls and required maintenance.






Vehicle information
Features
Reviews
Carlos Ortiz, who helped me, is professional and
Carlos Ortiz, who helped me, is professional and knowledgeable. I will go back in the future for work on my car. The dealership is far from her I live, but worth going there.






Vehicle information
Features
Reviews
Ellis was so sweet and helped and helped our family find
Ellis was so sweet and helped and helped our family find the car for us!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Had a great experience
Ollie was amazing he took care of my needs and help me to buy my dream car for my family. I will continue to do business with him and bring business to there company 5 stars all around great job .






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Car Service
I was very pleased with the service department. Everyone was very helpful and professional. I went there a long time ago and decided to go back. I am glad that I did! I will also recommend them to others. Mr. Golden was very nice and helpful!






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I received EXCELLENT SERVICE when I walked into ALM Kia
I received EXCELLENT SERVICE when I walked into ALM Kia South on January 2nd. Kerry (Stan) Ellerbe, my Sales Agent is an Amazing guy. He walked me through the process with skill, knowledge, and patience. He made my experience an easy one. I drove off the lot with a brand new 2025 Kia Soul. I will definitely be purchasing my next "New" car from ALM Kia South. Thank You and God Bless all of you.






Vehicle information
Features
Reviews
As a single mother searching for a car, I had an amazing
As a single mother searching for a car, I had an amazing experience with my car dealership associate, Ryan Staple. He came highly recommended by several friends and colleagues, and I can see why! From our first interaction, Ryan was incredibly professional and dedicated to helping me find the perfect vehicle. I bought my first car just last week, and I couldn't be happier with my decision. Ryan demonstrated outstanding customer service and extensive knowledge throughout the process. I am extremely satisfied with my purchase and will definitely recommend him to anyone in search of a vehicle. Thank you, Ryan, for making this experience so positive!






Vehicle information
Features
Reviews
Very good experience.
Very good experience. Very easy to deal with. Very professional in all aspects of the transaction. I would highly recommend ALM Kia South.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Customer Service was amazing and I will return.
Customer Service was amazing and I will return. Very professional staff and kept you informed of the progress of your vehicle.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features


Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I had a great buying experience with Charles, felt no
I had a great buying experience with Charles, felt no pressure, and walked out with the exact car I came in to buy. It was a very quick process. Thanks






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I would like to share my experience here and dealing with
I would like to share my experience here and dealing with Travis over the last week and a half. My wife and I contacted him about a 2017 Audi R8 on a Saturday that we were in Atlanta for a Braves game. I told him we were interested in looking at the car for potential purchase. It was last minute, but he told me "sure come on, the car is here, and you can check it out". We drove to see him and when we got there, he greeted us and introduced himself and showed the car to us. He offered to take me for a ride to check it out and was very pleasant to deal with. After we were done, he told me he would take care of getting the financing done and would try to get me the best deal possible. After staying in contact with him about the car for about a week, he delivered on his word of getting the financing done. My wife and I went back and forth on whether we wanted to spend the money or not. Even after being indecisive about the purchase, he stayed patient with us and wasn't pushy. So, we finally told him we would come get the car and sign the paperwork. Once we arrived, I asked him if we could check the car over really good one last time before signing. He was cool with it and because we were already approved and had insurance on it, he said, "here take it out for a spin and let your wife see what it's like and when you are done come back and let's talk." We really enjoyed the car and told him when we got back that we wanted to discuss everything over lunch and would give him the final answer after eating. Ater talking, there was just a few issues that were concerning to me about going forward with the purchase. To be honest, they may not have been big deals but for us purchasing a car like this for the first time we figured it would be best to wait until we find one that just made everything feel right. He understood and even offered to take care of the issues, but my wife and I just still weren't there on the car. As an owner of a European car repair shop there was just a few things that made me not want to go through with it. The R8 was beautiful and felt solid and like I said it was small things that probably wasn't a big deal, but they changed my mind. We didn't go through with the purchase, but it had nothing to do with Travis and how he conducted business. It was just mainly me being nitpicky on things. I never asked him to take care of the issues at all. He offered to do it. So, I must say coming from a business owner myself and dealing with customers on cars, I appreciate that a lot. He was very professional and easy to talk to. I would still consider purchasing an R8 from him if he were to get anymore that just makes my wife and I say, "yes this is the one for sure". I understand that everyone is going to have a different opinion about a business and their experience, and you can't please everyone all the time. I deal with it at my shop from time to time. I'm basing my review off of my personal experience here. Travis, if you read this man, we genuinely appreciate your time, professionalism and integrity. Thank you for being patient with us and I'm sorry we couldn't make a deal at the time.
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 1500 | $28,790 | |
2024 GMC Sierra 1500 | $42,764 | 5 Great deals |
2023 GMC Sierra 1500 | $37,470 | 27 Good deals |
2022 GMC Sierra 1500 | $25,395 | 13 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 $39,767, 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.
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.
Research the 2021 GMC Sierra 1500
Compare the 2021 GMC Sierra 1500
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5 Great Deals out of 32 listings starting at $28,990
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