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Used
2021 GMC Sierra 1500 trucks
for sale
near
Justin, TX
- 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 Elevation
Vehicle information
Features
Reviews
Their service department is simply first class, Trou Dunn
Their service department is simply first class, Trou Dunn was service consultant and he did a remarkable job getting our rather unusual problem with out Infinit solved.
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.
Vehicle information
Features
Reviews
Marco was excellent.
Marco was excellent. I had made a same-day appointment for my tire pressure light staying on. He quickly discovered that there was a leak in one of the tires. He was very happy to inform me that my tire was under warranty and being replaced for free. He said it would take an hour and a half but it only took 25 minutes! And they even washed my car! I am always so happy with the treatment I receive And the service of my car at Toyota of Plano. I won't go anyplace else!
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
Purchased a 2025 Honda Pilot.
Purchased a 2025 Honda Pilot. Saul was my salesperson and did an excellent job of going through the Car Leasing process. Great Car and a Great sales 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 Denali
Vehicle information
Features
Reviews
Mike Scholz was very helpful as I was looking for a used
Mike Scholz was very helpful as I was looking for a used Mazda Miata RF.
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 Denali
Vehicle information
Features
Reviews
My Carsandpickups.
My Carsandpickups.com Dallas buying experience was excellent from start to finish! Charles Bradley and team were professional, courteous, available and efficient. Highly recommend this dealership for your new car or truck needs!!
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
Had a great experience at AutoNation USA in Denton.
Had a great experience at AutoNation USA in Denton. Met with Cody and his Sales Manager, Sam, and both were super helpful and easy to work with. Went in looking for a safe, reliable SUV for my family, and found the perfect one. I had been checking out similar cars at other dealerships, but I kept coming back to AutoNation because they had the exact color combo I wanted inside and out. The SUV drives great, the price was fair, and the whole process was straightforward. Cody and Sam were transparent the entire time and walked me through each step without any pressure. They kept their word the whole way, which I really appreciated. I?d definitely buy from AutoNation again and recommend them to anyone looking for a solid, reliable vehicle.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Wonderful experience!
Wonderful experience! Our salesman Ricardo Magana was knowledgeable and easy to work with. He made sure everything was working on our car before we left the dealership. It’s our daughter’s first car and we feel she has a good reliable vehicle.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Traded my Sequoia had the best experience with Cristian
Traded my Sequoia had the best experience with Cristian will do business again in the future
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Javier was great to work with!
Javier was great to work with! Did all the numbers part over email. I knew what I was walking into. Test drove the car and was out the door with my purchase in less than an hour and a half!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Autobahn Jaguar Service is incredible!
Kory Malcolm is an awesome representation of your dealership. He is courteous, efficient and knowledgeable on all aspects of Jaguar vehicles. He gets your vehicle in and out quickly all while doing a very thorough job.
Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Trae was outstanding in his customer service.
Trae was outstanding in his customer service. He listened to what we needed as well as wanted in a car and delivered. He made the buying experience one that normally is a stressful time into a relaxing one.
Vehicle information
Features
Reviews
Excellent service just completed on my Enclave with fast
Excellent service just completed on my Enclave with fast turnaround. The car was returned cleaned inside and washed outside, a very nice bonus. I'll use Ewing for the next service and or repairs!
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Had routine service done on my truck.
Had routine service done on my truck. The staff does a great job of keeping you informed of their progress. Staff is very friendly and the service doesn?t take long.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Very easy to get appointment.
Very easy to get appointment. My Service Advisor was great, kept advised to my vehicle. When I picked up my vehicle it was washed and clean. They did a great job for me. This is a great dealership and I would higly reccommend this dealership.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Mark England is Dedicated! Shop Here
Usually, when you have a bad outcome, people bash the service provider, but not in this case. I wasn't able to get approved without a down payment for a car. But I would like to take out the time and Thank Marcus England from the upmost, for the outstanding customer service, he has been giving me for the past 2 weeks. If you ever need a car, with challenging credit, please contact CarMax Fort worth. Marcus and the fantastic Finance team tried very hard to get me approved. I didn't get a car but the Customer Service shows that CarMax out value in there employees. Thanks so much, I pray Gods Blessings at this place, and that y'all sale 75 cars this weekend. Y.Thompson
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
My car buying experience was great.
My car buying experience was great. Edwin my salesman was awesome. He answered all of our questions. Was easy to deal with and made the car buying process painless. Did an amazing job on the walk around and delivery making sure to set up my phone, GMC app and demonstration all the features before leaving the lot. Ron in finance was great as well. Overall I am completely satisfied with the purchase of my new vehicle from Hiley GMC. Sincerely a 100% satisfies and loyal customer for life, Tony Bruncati
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
No pressure No games Easy buy of a cash car.
I went to buy a cash car. I had a price range to follow. I looked at a Lexus 07 LS460. I was helped out in getting a deal for this car by Jesse. I had some some request to be addressed first, to make me feel better about the deal. I saw they where all made. Maybe not to a high standard but they were done. The whole process felt easy with no pressure. I never believed Jesse was playing games with me. Ever. All in all he sold me a car I wanted and at the price I wanted. What more can you ask for? It's a 07. It's got issues. Yes. It's a used car but the buying experience was never an issue. Would I go back to buy another one? Yes. Will I tell a friend? Yes. I just recommend you do your own research on the particular car your looking at. I did not and still got a good deal. Ask for Jesse.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Vehicle information
Features
Reviews
I had the pleasure of connecting with Hopper MotorPlex
I had the pleasure of connecting with Hopper MotorPlex last week after a friend had told me about them. Wow, while I’m a car guy, purchasing a daily driver is not my idea of having fun. The experience rein-instilled by faith in purchasing an automobile at a local dealer. Gary, Randy and the entire team were professional and brought a transparent and a no nonsense approach to my selection and purchase. Check out their impressive, clean and varied inventory….. you will be glad you did! Until next time!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Discussed 1968 they have for sale.
Discussed 1968 they have for sale. Answered all my questions satisfactorily. I set an appointment to go see the car.
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $55,404 | 2 Good deals |
| 2025 GMC Sierra 1500 | $55,242 | 7 Good deals |
| 2024 GMC Sierra 1500 | $51,929 | 11 Great deals |
| 2023 GMC Sierra 1500 | $43,993 | 11 Great deals |
| 2022 GMC Sierra 1500 | $40,906 | 6 Great deals |
| 2020 GMC Sierra 1500 | $33,225 | 5 Great deals |
| 2019 GMC Sierra 1500 | $31,644 | 9 Good deals |
| 2018 GMC Sierra 1500 | $23,710 | 10 Good deals |
| 2017 GMC Sierra 1500 | $23,622 | 5 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 $35,779, with pricing starting at $15,200.
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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4 Great Deals out of 22 listings starting at $25,995
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2021 GMC Sierra 1500 by body style
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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.
