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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 SLT
Vehicle information
Features
Reviews
I really like the way the sales person helped me to get
I really like the way the sales person helped me to get my new Honda , but I was slightly disappointed while working with Finance team as during the conversation she was not very friendly to explain me details about the total cost and charges, one other thing I should say after one week of buying the vehicle communication response time between the me and my agent is very high to get an answer of the query.
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
Chris Calltharp did an excellent job finding us the
Chris Calltharp did an excellent job finding us the perfect luxury suv, a QX 60. We visited many other dealerships to look at an explorer, pathfinder, blazer, rx350, Range Rover, Toyota and some used suvs at Carmax. I was not really impressed with anyone else’s knowledge or simple honesty. I applaud Chris for ensuring that this was a positive experience for my wife. She is extremely happy with her new 60! It was a pleasant experience. Please go find Chris and give him a chance to get you into an Infiniti. Sam in finance made that portion a seamless transaction as well. Very happy with Crest Infiniti!
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
Salesman super professional and respectful and patient,
Salesman super professional and respectful and patient, no bad comments against him , happy with my purchase
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 Denali
Vehicle information
Features
Reviews
Exceptional buying experience at Carsandpickups in
Exceptional buying experience at Carsandpickups in Addison. Go see Charles for no pressure, no waisting your time going back and forth and
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Herbert our sales rep was excellent.
Herbert our sales rep was excellent. He was genuine in helping us from the initial phone call through the entire process. Also Ravi who helped us with final paperwork was very good to work with. A negative was the relentless pressure from the finance team in buying extras that weren?t needed. Overall a good experience due to Herbert!
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The salesman, Jason, was courteous, knowledgeable and low
The salesman, Jason, was courteous, knowledgeable and low pressure. We literally bought the car (2014 Mazda 3 I Sport) in only a little over an hour, including the test drive. No high pressure tactics nor “upselling”. I highly recommend Cransh as well as Jason B.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Autobahn Jaguar Service
Went in for oil change and service manager warranted and fixed many things I didn't even know were wrong. Left very happy. No more squeaks or rattles.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Our salesman was Christian Valdez.
Our salesman was Christian Valdez. He was very professional and personable during our entire buying experience. I would recommend Epic Motors and particularly Christian for your next automobile purchase.
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.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Chris you are too kind.
Chris you are too kind. Thank you for my beautiful suv. Thank you for helping me out when the first pick did not work out. You can most definitely tell that you and the rest of the staff really care for people and what they want. Thank you. We will be back!
Vehicle information
Features
Reviews
Great experience, I was nervous to purchase a new vehicle
Great experience, I was nervous to purchase a new vehicle but Aaron got me into exactly what I wanted. Friendly, personable staff helped me into the best loan and I was able to drive home in my new car a couple hours later!
Used
2021 GMC Sierra 1500 Elevation
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
Mr. Motley was so great so much! He help me buy my first
Mr. Motley was so great so much! He help me buy my first car! Thank you Mr Motley!
Used
2021 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Reviews
Robbie, my salesman, was outstanding!
Robbie, my salesman, was outstanding!! He made it painless and is absolutely customer focused. Pricing was ultra-competitive. Dealership was clean. We will definitely go back.
Vehicle information
Features
Reviews
Excellent service in a timely manner!
Excellent service in a timely manner! Herb is a very good service person and always makes sure that my car issues are taken care of!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Several sales personal where informative and
Several sales personal where informative and knowledgeable in customer service. I didn’t purchase a vehicle but will give Vanguard the first choice at sales.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I went in and they worked with me quickly on the truck
I went in and they worked with me quickly on the truck that I was looking at and addressed all of the issues/concerns that I had immediately. I highly recommend this place if you’re looking for a pick up.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Service has always been first class!
Service has always been first class! All service issues that I have had on the three trucks that I have perchased there have always been serviced to my satisfaction. Employees are always courteous and helpful.
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 AT4
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.
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $55,989 | 4 Good deals |
| 2025 GMC Sierra 1500 | $53,281 | 6 Good deals |
| 2024 GMC Sierra 1500 | $51,063 | 11 Great deals |
| 2023 GMC Sierra 1500 | $44,195 | 15 Great deals |
| 2022 GMC Sierra 1500 | $40,643 | 23 Good deals |
| 2020 GMC Sierra 1500 | $32,675 | 14 Good deals |
| 2019 GMC Sierra 1500 | $31,769 | 10 Good deals |
| 2018 GMC Sierra 1500 | $23,748 | 8 Good deals |
| 2017 GMC Sierra 1500 | $23,632 | 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 $35,927, with pricing starting at $12,999.
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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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.
