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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
North Potomac, MD
- 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 SLE
Vehicle information
Features
Reviews
The staff is friendly, courteous, knowledgeable and
The staff is friendly, courteous, knowledgeable and always willing to help. Service is Amazing and tries to be accommodating. Sales was never pushy and went over the product fully as well as the process of purchasing.
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
I came to this location for routine service because the
I came to this location for routine service because the location is convenient for me. Rashawn did the service on my Equinox. He was very professional, friendly and communicative.
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
A great experience!
I recently purchased a used car from Fitzgerald and the experience was wonderful. The whole team was great, but we had an excellent salesperson by the name of Ernest Marshall. He was personable, professional and was able to answer all of the questions I had about this vehicle. You won't regret going to Fitzgerald and working with Ernest.
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.
GMC Certified
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
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
I just bought a 2020 Ford Transit from Trust Auto in
I just bought a 2020 Ford Transit from Trust Auto in Maryland, thanks to Vlad, it went well despite the fact that I live in Florida. Kevin was very nice, seemed good at his job and well spoken, good guy. Vlad was fast, professional, and made the entire process incredibly smooth and straightforward. Vlad was responsive, sent photos within minutes of the underside of the van, and we finalized the deal in under an hour. The van was exactly as advertised, and it was delivered to my home in Florida in less than a week. Vlad and Kevin have great communication, humor, and transparency made. Vlad specially made this a stress-free purchase and I feel I got a good deal. I absolutely recommend Vlad and for the Accounting Kevin, Trust Auto is a good one!
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
Features
Reviews
Scott was awesome to work with.
Scott was awesome to work with. Very knowledgable and help full without being pushy. The dealership had a great selection of SUV's, so we had plenty to choose from and we are very happy with our selection as well as the whole process from sales to finance. All a great experience and that doesn't seem to happy often anymore.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
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Reviews
MY experience with Trust Auto was seamless from start to
MY experience with Trust Auto was seamless from start to finish. Our sales agent, Kate was professional and delightfully pleasant. There was never a hint of pressure or surprises with hidden fees. Therefore, I highly recommend this dealership.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Mrrick
Oil change went well, tire tread too low to rotate. Brakes were done by lunch.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Tony at the Service Department-always provides
Tony at the Service Department-always provides outstanding customer service. He provided me continuous updates, answered all my questions, and ensured I had a pick up and drop off. I have worked with Tony numerous times now and that is why I keep returning to Farrish. Professional dealership.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Very helpful.
Very helpful. Usual good service. Fully recommended. I was kept fully informed about the service and cost. No surprises. I was quickly notified about the progress of the work.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I appreciate the honesty and professionalism with these
I appreciate the honesty and professionalism with these guys. They always do a great job with my car, and it never takes more than a couple of days. Highly recommend Safford Jeep.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
This was hands down the best car-buying experience I’ve
This was hands down the best car-buying experience I’ve had in all my years. I’ve purchased vehicles from Mercedes, BMW, Acura, Jeep — you name it — and none of them came close to the level of professionalism, honesty, and hospitality I received at Koons GMC in Vienna, VA. The deal they offered was so incredible that I traveled all the way from New Jersey by Amtrak to Virginia. I’ll admit, I was skeptical at first because many dealerships pull bait-and-switch tactics. But not here. Saleam (Sales), Sait (Sales Manager), and Isabella (Finance) all confirmed the deal ahead of time and honored exactly what was promised. When I arrived just after opening at 9 AM, Sales was still in a meeting, but I was greeted respectfully right at the door. Saleam was paged, and the process began immediately. She welcomed me warmly, gave me a brief tour of the dealership—including the much-needed coffee lounge—and handled all the paperwork, insurance details, and my Costco rebate flawlessly. Sales Manager Sait was exceptional. He thanked me personally for my business — something I’ve never experienced from a sales manager at any dealership in the past. He even told me to call him anytime if I had questions or concerns. That level of care is rare. My experience was elevated even further by Finance Manager Isabella. Her energy was absolutely to the moon. She helped close the best deal I could find anywhere in the NY/NJ/CT tri-state area and the entire DMV region. She offered an unbeatable protection package at a discount, covering dents and mileage, and explained everything clearly and thoroughly. She also respected my time, wrapping up the paperwork quickly since she knew I had a four-hour trip back home. I cannot recommend this dealership enough. If you’re reading this review, do yourself a favor and consider Koons GMC in Vienna. I would happily send any of my friends, family, or colleagues here. They’ve earned a lifelong customer.
Certified
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Tiffany was amazing to work with.
Tiffany was amazing to work with. They picked up my truck took it in and brought it back to me the same day! Best part was they offered to pick it up for free. I will be back here to purchase my next truck.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Meet with Johnathan today to trade my car in for a
Meet with Johnathan today to trade my car in for a widebody challenger scatpack great service all around and great deal will shop with them again. Thanks Johnathan and albert
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
We had an excellent experience with Kevin and Pedro
We had an excellent experience with Kevin and Pedro buying a very nice, very competitive priced and well maintained, Ford F-150. They got us a very low/fair good rate on credit, and they also were very friendly, professional, honest and quick with the process. There were no surprises or issues or switches. Very reputable and trustworthy dealership and I’m really glad I bought the truck! It’s running great
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I was interested in a Nissan NV 2500.
I was interested in a Nissan NV 2500. Viewing several of these vehicles on cars.com and other sites. I decided to make the trip to Trust Auto in Maryland from West Virginia. About a 4 1/2 hour trip. I had talked to David on the phone to make sure the Nissan was still available and explained when I could be there to look over the vehicle. We made the trip in good time only running into one delay. Upon meeting David he brought the vehicle up to the front of the dealership and told us to inspect it, which is what we did. I had two top mechanic with me. While we knew the vehicle had been in an accident, the repair work was very well done on found a few bolts missing. One in the valance and the other from the inner fender. This could have been from the accident or just from being a service vehicle. A little over 94,000 miles on it. The detail shop did a great job on their work. Very chean for sure. After running the computer test, we took the Nissan NV for a test drive. It did not disappoint. Extremely happy with everything we saw and felt during the test drive. Steering was solid and tracked well. No pull to either side while driving. Throttle response was perfect as well as the braking system. The comfort of the Nissan NV was Avery pleasant surprise. The ride was almost as good as my Lincoln MKZ, almost.😎 Much like a 2006 GMC dually I had in 2007. Very nice. When returning to the dealership myself and the two mechanics talked things over and decided to go to the next step. After a little negotiation we settled on a fair price and made the purchase. David was very kind to us and I feel like we got a great deal. We finished the paperwork and was ready to leave but we were blocked in by another vehicle. I backed back into the parking spot when one of the ladies that worked there said she would move the vehicle so we could be on our way. She came back within a few minutes moved the vehicle and with a big beautiful smile waved goodbye to us as we left. That truly made my day😇. Trust Auto in my opinion is a great dealership and when I need another vehicle, they will be the first ones I will go to. Thank you to everyone who was so kind to us while we were there and may GOD bless everyone of them 🙏✝️🙏 Jon
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Atmosphere was pleasant and all of the personnel was kind
Atmosphere was pleasant and all of the personnel was kind and professional. Especially my salesman Earl Jones He made the whole process so easy. The other salesmen were very kind also. Koons is the way to go when buying a vehicle.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I do not have a review.
I do not have a review. your finance person was interested in giving us a higher interest rate. may be they make more money as such
Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Bought my daughter’s first car from here!
Bought my daughter’s first car from here! They were so professional and quick. Helped her find her dream car and were very patient. The service was exceptional and I am definitely coming back to upgrade my car with them in the future. Couldn’t be happier with my car purchase and a I highly recommend this dealership. They will help you find exactly what you’re looking for.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Darius was great and really knows his stuff.
Darius was great and really knows his stuff. He wasn't just trying to sell me a car but also HELP me with making the right decision for me.
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $58,088 |
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 $35,685, with pricing starting at $14,800.
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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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.
