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*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.
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Used
2021 GMC Sierra 1500 trucks
for sale
near
Magnolia, 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
Great dealership.
Great dealership. Full transparency no dealer ad ons. No xx. Within 2 hours of inquiry of a vehicle online. Was at dealership at agreed on a deal.
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 Denali
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
Great overall fast informative convince at the time of
Great overall fast informative convince at the time of buying my car finance was great they explained the terms met my payment got the car I wanted
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 SLT
Vehicle information
Features
Reviews
This was the best buying experience of my life.
This was the best buying experience of my life. Jacoby was very friendly and helped streamline everything. Finance was a breeze. I remember when buying a car took all day. I was in and out in just over 2 hours with a brand new Ford F150 Lariat. Gullo Ford Conroe has a customer for life. Beautiful facilities also!
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 SLT
Vehicle information
Features
Reviews
The best Houston has to offer in RV repair work.
Our Mercedes Era motorhome sustained serious damage while passing through Houston on I -10. It was no longer driveable and we were still 4 hours away from our home in San Antonio. Having spent 35 years investigating and resolving claims for a large insurance company, I was versed in physical damage restoration. Unfamiliar with Houston body shops, I relied upon the advise of a Foremost Insuance claims manager and he said, “DeMontrond RV Collision service is the only shop we could recommend.” On their advice, I contacted Jeff Sayers and I’m so pleased with their thorough evaluation and outstanding repair work. They located all damaged parts and relied upon Mercedes for any mechanical needed on the MB diesel engine. They finished repairs on the date promised and did professional work on body restoration. They communicated with me on a regular basis. Their friendly and knowledgeable staff documented all damage with photos and detailed explanations. This “0ld Claimsman” was impressed.
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
Prievously Owned SUV purchase
This is my third car purchase from CAR MAX . A later model for the wife . A jeep Cherokee and is a 2019 with low mileage . She is happy and that makes US happy . The purchase was not hurried and no back and forth between Mr Smith and I . Really straightforward . Satisfied completely .






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great service and the service was done Quick on time?
Great service and the service was done Quick on time? we moved south to Rosenberg but I don?t bother drive up to the sale dealership for my service?
Vehicle information
Features
Reviews
Buyer
Our salesman did a excellent job showing us all the vehicles features and assisting us in our purchase! We highly recommend him to anyone looking for a vehicle!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
My oil change was quick.
My oil change was quick. And fast the service rep, was on point with recommendations. I was also contacted by a lady to sell my vehicle, but I'm not ready to buy yet.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great place!
Great place! I have bad credit and they were very patient with me and got me a monthly payment I can manage. Very very nice and I felt zero pressure
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
We recently bought a car from Javonte at Becken Masten
We recently bought a car from Javonte at Becken Masten North and his service couldn?t have been better. Will continue to go back to him on the future. He did not push and ensure we got exactly what we wanted within our budget. Very patient and attentive.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Making an appointment to have my car serviced was quick
Making an appointment to have my car serviced was quick and easy. Employees were friendly and courteous. Waiting area was clean and comfortable. The oil change and multi- point check did not take long.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
This review is about the Ford service department and
This review is about the Ford service department and Samantha Gray. my most recent experience with her and this department was fabulous. She communicated well and had the vehicle ready as promised. Keep up the good work Samantha.

Certified
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Planet ford spring was a joy to buy a car from.
Planet ford spring was a joy to buy a car from. The salesman (Leo) was great and listened to what I required and came through a little better than I requested. All the staff was friendly and helpful and I would highly recommend this dealership after trying several others.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Jeff Bashor took care of us in a very thorough manner
Jeff Bashor took care of us in a very thorough manner that made us feel welcome.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Satisfied Customer will tell people about Fabian
Hello this is about the sales man Fabian Murphy at demontrond Kia he is professional and caring he worked with me to the end.and Robert Parker Jr in finance did a good job as well and althea in service. Fabian Murphy good job I'm happy right now
There are 20 matching cars close to your year range.






Used
2022 GMC Sierra 1500 Elevation
Vehicle information
Features






GMC Certified
2023 GMC Sierra 1500 Denali
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Used
2023 GMC Sierra 1500 Denali
Vehicle information
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Used
2020 GMC Sierra 1500 AT4
Vehicle information
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Vehicle information
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Vehicle information
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Used
2020 GMC Sierra 1500 Denali
Vehicle information
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Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2019 GMC Sierra 1500 Denali
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Used
2020 GMC Sierra 1500 SLT
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Used
2020 GMC Sierra 1500 Elevation
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Used
2022 GMC Sierra 1500 AT4
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Used
2023 GMC Sierra 1500 SLT
Vehicle information
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Vehicle information
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Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2019 GMC Sierra 1500 AT4
Vehicle information
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Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features



Used
2020 GMC Sierra 1500 SLT
Vehicle information
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Used
2023 GMC Sierra 1500 Denali
Vehicle information
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Used
2022 GMC Sierra 1500 Denali Ultimate
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $43,575 | |
2025 GMC Sierra 1500 | $33,925 | 2 Good deals |
2024 GMC Sierra 1500 | $31,991 | 9 Great deals |
2023 GMC Sierra 1500 | $31,995 | 7 Great deals |
2022 GMC Sierra 1500 | $33,255 | 14 Good deals |
2020 GMC Sierra 1500 | $17,977 | 15 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 $39,069, with pricing starting at $15,980.
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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