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Used
2021 GMC Sierra 1500 trucks
for sale
near
South Houston, 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
Great!
Great!!! The salesman helped me throughout the buying process and has stated in contact with me since the purchased. I believe I am going to enjoy the relationship developed with the North Houston dealership. I like the car and us meeting my experience extraction. Thank you.
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 AT4
Vehicle information
Features
Reviews
NEW RAV 4 XLE
I AM SO EXCITED TO SAY WE JUST BOUGHT OUR 7TH VEHILCE FROM JOSEPH HADI AND LUPE BARRERA!! I LOVE THIS DEALERSHIP BECAUSE THEY LISTEN TO YOUR NEEDS AND WORK MIRACLES TO MAKE IT HAPPEN. ADRIAN GARCIA HELPED WITH THE PAPERWORK CAUSE OUR BELOVED LUPE WAS OUT. THE TEAM THERE HEADED WITH JOSEPH HADI ARE THE MOST WONDERFUL PEOPLE EVER. IF YOU ARE WANTING A TOYOTA PLEASE GO SEE OUR DEALERSHIP!!
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...
Certified
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I bought a car from this dealer entirely online, and
I bought a car from this dealer entirely online, and their team went above and beyond to assist me. They helped with the inspection and even took the car to the dealership for a recall, and this happened to be for a BMW. Despite the transaction being online, they provided exceptional service by personally handling these tasks for me. I?ve already sent them both thank you's, but still their effort truly exceeded my expectations. I?ll definitely return to them for my next car purchase.
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.
Vehicle information
Features
Reviews
Good they tried to make the deal and we’re willing to
Good they tried to make the deal and we’re willing to bend a little bit
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 Elevation
Vehicle information
Features
Reviews
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
Great dealership!
Top Notch all the way. Sales and service treat you right. Definitely worth the drive from wherever you live to see these guys next time you need a new car or service.
Vehicle information
Features
Reviews
Melissa was absolutely marvelous with helping me navigate
Melissa was absolutely marvelous with helping me navigate the buying process! she was professional and gave me the time I needed to make a decision on the vehicle that was right for me and my family!
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
GREAT SALES SERVICE
Bryon C. was amazing! We walked into the dealership looking for a Jeep that just happened to be sold the previous day. Bryon took the time to search all other dealerships to find one identical to the one we wanted. He was so helpful and had a great deal of patience with us during this entire process. Bryon continues to still answer our questions when we e-mail or call him. We have sent at least one other person to work with Bryon and we will definitely be sending more! We HIGHLY recommend Bryon C.! Thank you!
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
GMC Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
My service appointment was swift and professional.
My service appointment was swift and professional. All of my cars needs were addressed. Rosie is an amazing customer representative. She is always upfront and professional.
Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
The staff was very friendly, the service was done quickly
The staff was very friendly, the service was done quickly and I received a complimentary car wash which was a nice thing. I would recommend this location! Great job!
GMC Certified
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
No hassle, no pressure.
No hassle, no pressure. 10/10 car buying experience! Javi helped me find EXACTLY what I was looking for! So thankful for everything they did for me!
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Kaan was extremely helpful and professional while I was
Kaan was extremely helpful and professional while I was checking out the Ram 1500. He took the time to answer all my questions, walked me through every detail, and made me feel confident about my interest in the truck. If you’re looking for someone who’s honest, patient, and really knows their vehicles, Kaan is the one to see!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Had oil change and vehicle inspection.
Had oil change and vehicle inspection. Found some torn joints that needed immediate attention. We?re able to repair the same day. Was able to get everything completed in half a day.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Claudia Arredondo took care of me.
Claudia Arredondo took care of me. I?m satisfied with the service work done on my vehicle. Thank you again for your service and look forward to visiting you in the future
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Emmons autoplex is truly a great dealer.
Emmons autoplex is truly a great dealer. One price is stress free, George was great.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great experience!
I received excellent service from everyone who helped with my car purchase. Everyone worked hard to make sure that I was satisfied with my purchase, and I really appreciate the patience and helpfulness that I was shown.
Vehicle information
Features
Reviews
Kam is the greatest their is he help me get rolling in
Kam is the greatest their is he help me get rolling in less than 3days
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I very recently bought a 2025 LYRIQ from the Sewell
I very recently bought a 2025 LYRIQ from the Sewell family. I have exclusively driven Acura’s (10ea) for the past 15 years but decided to take the plunge and go all electric. Acura didn’t have a good option, so I did my research and settled on the LYRIQ as the best option balancing design, reliability, and the features I wanted. I tried a dealership in the far North Houston area and while they were nice, they lacked follow up when I decided to make a purchase. I then tried Sewell and am so glad I did. I have to say it was the most hassle-free experience to buy a new car in nearly 50 years of experience. My salesperson was Cailee Thames, and she was fabulous. She answered all my questions, and I very quickly got what I think was an exceptionally fair price, based on my research. I never had to go through the traditional drill of “let me get the sales manager” who then wants to upsell. I dealt only with Cailee. Since I needed my wife to come back and make the final decision, I was prepared to pay a deposit to hold it, but Cailee said that’s not the way they do business. A handshake held the car for several days before we could get back. Everyone I came in contact with was very professional and focused on the customer. All the closing documents were done online and provided in print form. Of course, the car was flawless, inside and out. About a week after I got the car, I decided I wanted to get the Tesla charger adapter. I called the closer dealer, and they quoted me $400+ so I went back to Cailee who got it for me at $225, as we had discussed earlier. I live a long way from them and wanted it shipped to save the drive and expected I’d have to pay for shipping, but no, the parts department said they would take care of it, and it went out the same day. So, my bottom line is that the Sewell dealership does treat you like a “customer for life” from the beginning of the experience. I can highly recommend buying from Sewell, even if they are not the closest to you. And if you’re lucky enough to be assigned Cailee, you’ll be even happier .
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Efrain was great to work with when we purchased our car.
Efrain was great to work with when we purchased our car. Worked with me on a fair price and was open and honest. Facility was very nice as well.
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $62,571 | 2 Good deals |
| 2025 GMC Sierra 1500 | $58,151 | 16 Great deals |
| 2024 GMC Sierra 1500 | $53,117 | 8 Great deals |
| 2023 GMC Sierra 1500 | $48,278 | 9 Great deals |
| 2022 GMC Sierra 1500 | $46,429 | 12 Good deals |
| 2020 GMC Sierra 1500 | $33,121 | 12 Good deals |
| 2019 GMC Sierra 1500 | $32,344 | 16 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 $37,669, with pricing starting at $13,999.
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.
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 currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
