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Used
2021 GMC Sierra 1500 trucks
for sale
near
Bellaire, 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
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
Manager Aaron was very upfront with me about the process
Manager Aaron was very upfront with me about the process of how long it would take to have my truck issue resolved and kept me informed on a weekly basis
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 AT4
Vehicle information
Features
Reviews
I had a rough first experience at Mac Haik Chevrolet’s
I had a rough first experience at Mac Haik Chevrolet’s service department, but Brian Caldwell, the Service Director, completely turned things around. He personally followed up the same day I voiced my concerns, sent a mobile tech to my house to handle the software update, and later arranged for a porter to deliver a loaner and pick up my truck for a roof recall and additional service. They performed every repair as promised—on time—including the roof fix, oil change, tire rotation, and a minor interior issue. Brian kept great communication throughout, even with our busy schedules, and treated my time and situation with real respect. What started as a frustrating experience turned into one of the best service recoveries I’ve ever seen. Huge thanks to Brian, his team, and Mr. Mac Haik. This is how a dealership should be run.
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
Andrew was amazing as our salesperson at AutoNation Ford
Andrew was amazing as our salesperson at AutoNation Ford Katy. He was attentive, knowledgable, and supportive throughout the entire car-buying process. He made everything smooth and stress-free and was there for us every step of the way!
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
Very impressed with the facility and staff at BMW of
Very impressed with the facility and staff at BMW of Houston North. everyone I met conducts their job very professionally and did not push me to make a decision. They were more interested in me selecting the right vehicle.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Sergio made it quick and easy on the buy.
Sergio made it quick and easy on the buy. Had everything ready for me and any answers I needed. Finance was quick also having everything done.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Una experiencia inolvidable, proceso rápido y muy buen
Una experiencia inolvidable, proceso rápido y muy buen servicio. Estoy muy contento con mi carro! 🥳
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Dulce is amazing highly recommend her.
Dulce is amazing highly recommend her. She is very professional and easy to work with.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great experience purchasing my new 2026 Buick Enclave.
Great experience purchasing my new 2026 Buick Enclave. The salesman (PJ) was awesome. Finance got me in and out quickly. No issues and would recommend.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Enjoyable experience in and out knowledgeable salesman
Enjoyable experience in and out knowledgeable salesman the guy who handled my financing was great they made it seem very easy I would definitely recommend it to friends and family, which I already have.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
A great place to buy and get service make you
As always everyone treats me as if I am Family! Great people and great service They make the experience a good one Every time all the time.
Used
2021 GMC Sierra 1500 Base
Vehicle information
Features
Reviews
Getting a car at Autonation Katy was a breeze.
Getting a car at Autonation Katy was a breeze. Justin Hernandez actually introduced a better car for better value than the one we were originally looking at, was very knowledgeable and answered every question patiently. Great guy to work with!
Vehicle information
Features
Reviews
Steven V.
Steven V. made the buying process seamless and easy. 10/10 would recommend for my next car purchase
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Thank you Michael for taking care of us
I great place with a great customer service, thank you Michael for helping me to purchase with my dream Jeep wrangler. You were amazing my friend and also my finance guy that don't remember his name, may God bless you guys.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Thank you, Fabiola for your help I recently bought, 2006
Thank you, Fabiola for your help I recently bought, 2006 C6 Corvette, LOVE IT Recommend, America's Auto Financial whoever is looking for a vehicle, the service was great,
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great experience overall, Joshua was very helpful with
Great experience overall, Joshua was very helpful with what our needs were an really worked to get us what we needed.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
All phases of the buying process from BMW North Houston
All phases of the buying process from BMW North Houston is streamlined and easy. Excellent staff, beautiful showroom, and streamlined dealership. Would recommend to anyone looking for a new or used vehicle.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Professional and polite was greeted upfront from the
Professional and polite was greeted upfront from the beginning. Work was done quick. Great job
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $60,165 | 3 Good deals |
| 2025 GMC Sierra 1500 | $55,714 | 5 Great deals |
| 2024 GMC Sierra 1500 | $50,349 | 12 Great deals |
| 2023 GMC Sierra 1500 | $47,214 | 11 Good deals |
| 2022 GMC Sierra 1500 | $44,350 | 12 Good deals |
| 2020 GMC Sierra 1500 | $31,759 | 17 Good deals |
| 2019 GMC Sierra 1500 | $30,656 | 7 Good deals |
| 2018 GMC Sierra 1500 | $23,828 | 7 Great deals |
| 2017 GMC Sierra 1500 | $22,362 | 8 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 $35,555, with pricing starting at $14,400.
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.
