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Used
2021 GMC Sierra 1500 trucks
for sale
near
Tomball, 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
Jeff Wiemann/CARMAX CY FAIR
My daughter bought a 2015 Kia Soul today from Jeff Wiemann at Carmax Cy Fair. 15 minutes into our visit she realized Jeff had been her salesman back in 2013 when she purchased her 'first' car! He's a great salesman- I have always given 5 star reviews to carmax- but Jeff deserves a huge 5 star review too!
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 SLE
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 Elevation
Vehicle information
Features
Reviews
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
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
Online shopping
Found the perfect used Grand Cherokee at River Oaks on online listings. As soon as I inquired, they were responsive and made sure that I was able to get the car. Straight talk, courteous and fair.
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
The overall experience was great.
The overall experience was great. The process was quick and simple. Everyone was very helpful and answered every question that I had. I would definitely go back.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features






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
Reviews
very nice place to wait a lot of my family buy from yous
very nice place to wait a lot of my family buy from yous would recommend all Chris was very nice he let me know that they were running behind






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Excellent.
Excellent. Everything was very professional and all the people helping me were very friendly. I will continue to use beck and Masten north in the future.






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!






GMC Certified
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
great experience at this dealership.
great experience at this dealership. highly recommend it to anyone who is trying to buy a used or new car. doyle was great at letting us test drive vehicles






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My experience was amazing.
My experience was amazing. My sales person, Garrett Skinner was such a good communicator. He helped me find the perfect SUV for my needs. Garrett was knowledgeable and made sure to explain all the systems. Everyone at Gullo was friendly, professional and made me feel like their only customer. I am now a Gullo customer for life!!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
In and out in one day.
In and out in one day. Jimmy picked up on the repairs and Matt leaving.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I bought my wife a 2026 Chevrolet Trailblazer RS.
I bought my wife a 2026 Chevrolet Trailblazer RS. My salesman Jared was an absolute god send. He didnt pressure anything and made my wife and I very comfortable during the purchase. My wife is happy and thats all tgat matters. Rad in finance was a pleasure to work with and very informative. He was able to help me lick my wounds hahaha. Just kidding. This wont be my last purchase from this dealership. 10/10

Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Had a great experience with my sales person Ricardo and
Had a great experience with my sales person Ricardo and sales manager work with me to make a great deal. Had the truck I wanted at the price I could work with.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Lilly was awesome made the process seamless.
Lilly was awesome made the process seamless. We bought a vehicle from her before. Everyone else at the dealership is professional and makes me feel comfortable.






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features






Vehicle information
Features
Reviews
I knew David Simpson from church and he was very
I knew David Simpson from church and he was very professional in handling of the sales process. The financing and other processes were smooth and professional.

Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Recommend this dealership to anyone looking for a great,
Recommend this dealership to anyone looking for a great, dependable vehicle! Brand new or used..you can count on them to give you the best service you deserve!
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $40,345 | |
2025 GMC Sierra 1500 | $35,058 | 5 Good deals |
2024 GMC Sierra 1500 | $37,000 | 5 Great deals |
2023 GMC Sierra 1500 | $33,499 | 5 Great deals |
2022 GMC Sierra 1500 | $31,474 | 15 Good deals |
2020 GMC Sierra 1500 | $21,500 | 10 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 $38,283, with pricing starting at $14,980.
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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2021 GMC Sierra 1500 by body style
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
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.