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Used
2021 GMC Sierra 1500 trucks
for sale
near
Milton, 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.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Benjamin was great, very helpful with the process.
Benjamin was great, very helpful with the process. The staffs was helpful not pushy. And ultimately got my dream ride.
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 Denali
Vehicle information
Features
Reviews
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...
Vehicle information
Features
Reviews
Excellent choices to choose from and very easy to buy and
Excellent choices to choose from and very easy to buy and sell your next car … and and the site has great options at the tip of your fingers thank you cars.com for a great experience…
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
LovesNavigators
everything was great, nice people, quick service, loaner car. We've purchased 6 cars from Pugmire since 1990 and used their service on every car. Barry and the other guys in Service are great, couldn't be nicer, they don't do work that isn't necessary. And it was a pleasure to buy our last car from Nathan. Just saw the 2018 Navigator. Wow! Might be visiting Nathan again soon. Best Dealership in Atlanta. They aren't near my house but worth the drive.
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 SLT
Vehicle information
Features
Reviews
I was just browsing the parking lot to get an idea of
I was just browsing the parking lot to get an idea of newer cars when I was approached by Chris Hofmann. He was friendly, helpful and really knew his cars. He never pressured me, took the time to answer all my questions. While I wasn't planning on a purchase that day, Chris helped me find the perfect car for me in my price range. What a stellar experience at this dealership! Highly recommend Chris to anyone wanting a vehicle!
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 SLT
Vehicle information
Features
Reviews
New Elantra
Mike Gregg did a great job helping us out today. Great customer service, and we were able to leave with our dream car at a rate we were happy with.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Ben was amazing.
Ben was amazing. There was some hiccups, but he treated us with respect and honesty. It was a great experience overall.
Used
2021 GMC Sierra 1500 AT4
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
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
great experience there.
Had Marcus as my salesman. Very awesome experience. Help me get the truck I wanted worked with me and got the deal I wanted. Never pressed or made me feel like I had to take the deal.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Benjamin Clark was an excellent young salesman.
Benjamin Clark was an excellent young salesman. My wife and I were very impressed with his professionalism and courtesy. I’m satisfied with my purchase and have peace of mind from my shopping experience.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Overall good experience.
Overall good experience. Hakeem was great to work with and made the process feel casual. Some troubles arose that extended our wait but in the end we got the car and the deal we wanted. Thanks Hakeem!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I reached out to Platinum Cars Marietta about a BMW M850i
I reached out to Platinum Cars Marietta about a BMW M850i they had in their inventory, and I was thoroughly impressed with their professionalism and responsiveness. Jason Bush and David Patel promptly answered all my questions, providing clear and transparent details about the car and its pricing. Unfortunately, we couldn’t finalize the deal as the vehicle had a damaged part that they weren’t able to replace, but they did offer me a small discount to accommodate the issue, which I genuinely appreciated. However, since I’m investing over $50K in a car, I preferred to have it delivered fully fixed, so I decided to put the purchase on hold to explore other options. Despite this, I truly valued their transparency, urgency in addressing my concerns, and overall customer service. If you’re looking for a dealership that communicates well and is upfront about their inventory, I’d highly recommend Platinum Cars Marietta.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
very transparent and honest
excellent staff quick response and all the information requested was sent. very transparent. I would recommend this dealership to anyone. super friendly and knowledgeable staff.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great selection of trucks and SUVs at reasonable prices.
Great selection of trucks and SUVs at reasonable prices. Salesforce is extremely knowledgeable, helpful and a pleasure to work with.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Mr. Maceo was the best salesperson I have ever dealt
Mr. Maceo was the best salesperson I have ever dealt with. He did everything I asked for and more I really appreciated his professionalism and service.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Best car buying experience I have ever had thank you
Best car buying experience I have ever had thank you Brian Nguyen, business manager Hemant Patel and sales manager Ronnie Lewis. For the awesome buying experience happy to be part of the Ford family
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
This dealership is amazing!
This dealership is amazing! 🙌 I honestly can’t thank them enough — the entire process was smooth from start to finish. I told Shikara exactly what I wanted, and she made it happen with no stress. Big thanks to David as well for making everything come together. If you’re looking for great service and a team that really listens, this is the place to go!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Pay attention what get in your hands paperwork throughly
Pay attention what get in your hands paperwork throughly read it carefully and see everything they put in it such extra extra cash that you didn’t say and extra money makes it go up higher that you can’t afford the extra payment.Now you see how much gap insurance $$$ added in the paperwork and makes sure you get a lawyer go with you when getting used filthy car full of dog hairs.Makes sure you have mechanic on hand too.They will sell you a car without license which is illegal.Don’t use no co-signer.Don’t use Ally financing on new or used vehicles.Even if you pay it off tell you getting gap refunds on mailing letter.they will keep it cause you don’t qualify for it.Keep up with all your paperwork in a file and payment history on papers like print out.Get your payment down as low as you can and 84 months is long ways to go.Do research how to save money on used or newer car without all that crazy extra add on.They’re trying make money of of you even on the elderly people.Have a great day everyone
Used
2021 GMC Sierra 1500 Elevation
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Features
Reviews
Raine was the best, we left a car dealership and then
Raine was the best, we left a car dealership and then stopped and met Raine and what a difference, she was amazing. Took time and did everything she said she would and to be honest I didn’t think she could make the deal we wanted but to her credit she was able to do it and we bought our car and are very pleased!!!
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Philip Howard?. Satisfied customer!
Been buying from Hardy Chevrolet since 1982 and never had a bad experience
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $65,202 | |
| 2025 GMC Sierra 1500 | $59,546 | 14 Great deals |
| 2024 GMC Sierra 1500 | $53,389 | 10 Great deals |
| 2023 GMC Sierra 1500 | $49,644 | 5 Great deals |
| 2022 GMC Sierra 1500 | $42,260 | 11 Good deals |
| 2020 GMC Sierra 1500 | $37,114 | 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 $37,385, with pricing starting at $12,980.
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
2021 GMC Sierra 1500 Trucks by city
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2021 GMC Sierra 1500 Trucks in Alpharetta, GA
2 Great Deals out of 23 listings starting at $29,550
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2021 GMC Sierra 1500 Trucks in Roswell, GA
2 Great Deals out of 25 listings starting at $29,550
-
2021 GMC Sierra 1500 Trucks in Johns Creek, GA
3 Great Deals out of 25 listings starting at $29,550
-
2021 GMC Sierra 1500 Trucks in Holly Springs, GA
1 Great Deal out of 22 listings starting at $31,554
-
2021 GMC Sierra 1500 Trucks in Peachtree Corners, GA
4 Great Deals out of 25 listings starting at $29,550
-
2021 GMC Sierra 1500 Trucks in Canton, GA
1 Great Deal out of 20 listings starting at $34,135
-
2021 GMC Sierra 1500 Trucks in Duluth, GA
3 Great Deals out of 24 listings starting at $29,550
-
2021 GMC Sierra 1500 Trucks in Berkeley Lake, GA
3 Great Deals out of 25 listings starting at $29,550
-
2021 GMC Sierra 1500 Trucks in Dunwoody, GA
4 Great Deals out of 27 listings starting at $29,550
-
2021 GMC Sierra 1500 Trucks in Sandy Springs, GA
4 Great Deals out of 26 listings starting at $29,550
-
2021 GMC Sierra 1500 Trucks in Sugar Hill, GA
2 Great Deals out of 20 listings starting at $29,550
-
2021 GMC Sierra 1500 Trucks in Norcross, GA
4 Great Deals out of 26 listings starting at $29,550
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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.
