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Used
2021 GMC Sierra 1500 trucks
for sale
near
Roanoke, 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
Over all excellent.
Over all excellent. Friendly staff and sales. Answered all the questions and satisfied with the product. I would recommend to any who are planning to buy a car
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
From the time we walked on the lot to look at their
From the time we walked on the lot to look at their luxury SUVs..we felt welcomed and our sales experience exceeded any other dealership. We ended up buying a 2025 QX80 Luxe Model..absolutely gorgeous car They went as far as bringing us the vehicle when we started the financing process. I can't say enough about the customer service. If you ever decide to buy a luxury vehicle please go to Crest Infinti..you will blown away with the service they provide.
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
Bought 2 Cars Here, Now Going Back
Bought a car here. After several years I traded it in and bought another. Values were fair on my trade-ins. Vehicles on the website are really the ones they have on the lot. No pressure, no negotiating, huge selection. Paperwork process like normal. I did have to refinance after I left there because the interest rates were steep and I got better deal from credit union. Overall recommend. Had a car accident, will return to Carmax.
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
After seeing the car online, the discussions with Kim at
After seeing the car online, the discussions with Kim at Sewell were professional and to the point. Car properly described online. Transaction was very simple. Car is very nice and I am very happy.
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
It was great to work with Alfonso and Colby overall
It was great to work with Alfonso and Colby overall everything was great good team
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
Bought a 2006 Mercery Milan here today.
Bought a 2006 Mercery Milan here today. No pressure from salesman, just straight up great person. Arthur did let me ask the questions and answered every one. He didn't try to tell me a bunch of B.S. Just to get me to buy a car from them. Absolute great experience and professionalism.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Ask for Herbert!
Ask for Herbert! He is the best! He is very friendly, knowledgeable, and personable. He made trading and purchasing much easier! I would buy from Autonation again for sure!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Garrett and Mario are the realest!
Garrett and Mario are the realest! 🤘🏼 - thank you for taken care of my car and making the process quick!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Sales and Repairs
Excellent service extends from the Sales to the Repair Departments
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I recently purchased an Audi A6 from Epic Motors.
I recently purchased an Audi A6 from Epic Motors. The only complaint that I have is that I cannot give them more than 5 stars…they deserve it. Their professionalism, communication, timeliness and transparency were outstanding. From start to finish the process and interactions were not merely transactional but they were personable. Cristian, Mo, and Jose were excellent. Without hesitation I would recommend Epic Motors to others, and I would unreservedly purchase from them again.
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 Base
Vehicle information
Features
Reviews
Very helpful.
Very helpful. Smooth purchase process. Responsive all the way. Good follow up. No issues at all.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I look forward to buying here again
We were pressed for time & needed a good, reliable truck. Our young son was leaving for Illinois in a few days. We almost literally ran into Kevin on his way out of the gate-Lol! He stayed a little late & showed us a great F150 trade-in he had just gotten & made a great deal out of it for us. He had it detailed, inspected & mechanically checked out for Josh to get on his way. I believe Kevin was sincerely invested in our son’s well-being for this road trip. Of course, Josh made it without a hitch! Thanks again, Kevin & God’s blessings on you, your family & your great business! 👍🏻
Used
2021 GMC Sierra 1500 SLT
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
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 SLT
Vehicle information
Features
Reviews
Joseph my service adviser had great customer service and
Joseph my service adviser had great customer service and made sure that my Vette was serviced properly and even made sure that my center console was rapaired
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
We had a great experience.
We had a great experience. Nicole was honest and the pricing was very transparent. Even though we are several states away, we would absolutely work with Nicole and Sewell again.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The best used car deal I have ever made.
The best used car deal I have ever made. First time buying with Sewell and had a great experience.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Cassidy and Charlie were the absolute best ever.
Cassidy and Charlie were the absolute best ever. The knowledgeable presentation of the Ascent far exceeded my expectations and what I thought I already knew about the vehicle. The rate the finance department got for me was better than what my own credit union offered. I highly recommend them to you and I already referred my cousin and his wife who bought a CPO ascent the very next week from them. You won’t be disappointed
Used
2021 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Reviews
Nice sales people.
Nice sales people. Easy to work with, but would not move on the price of the car.
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $57,688 | 4 Good deals |
| 2025 GMC Sierra 1500 | $52,446 | 9 Great deals |
| 2024 GMC Sierra 1500 | $49,216 | 23 Great deals |
| 2023 GMC Sierra 1500 | $44,924 | 18 Great deals |
| 2022 GMC Sierra 1500 | $40,408 | 9 Great deals |
| 2020 GMC Sierra 1500 | $33,057 | 7 Great deals |
| 2019 GMC Sierra 1500 | $31,941 | 17 Good deals |
| 2018 GMC Sierra 1500 | $25,054 | 10 Good deals |
| 2017 GMC Sierra 1500 | $23,924 | 9 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 $35,892, 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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Compare the 2021 GMC Sierra 1500
2021 GMC Sierra 1500 by city
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18 Great Deals out of 58 listings starting at $23,950
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2021 GMC Sierra 1500 in Justin, TX
11 Great Deals out of 43 listings starting at $23,950
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2021 GMC Sierra 1500 in Flower Mound, TX
20 Great Deals out of 58 listings starting at $23,950
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2021 GMC Sierra 1500 in Argyle, TX
14 Great Deals out of 46 listings starting at $23,950
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2021 GMC Sierra 1500 in Haslet, TX
15 Great Deals out of 48 listings starting at $20,988
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GMC Sierra 1500 trims
-
GMC Sierra 1500 2021 SLT
7 Great Deals out of 23 listings starting at $23,950
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.
