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Used
2021 GMC Sierra 1500 trucks
for sale
near
Conroe, 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 experience buying a car.
I recently purchased a GLE 350 from Richard Harper. Richard is focused on customer satisfaction and long term relationships not just a single transaction. My wife and I could not be happier with our new car and Mercedes Benz of the Woodlands.
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 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!
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 Denali
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.






Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Gwendolyn made this service experience easy and less of a
Gwendolyn made this service experience easy and less of a to-do. My first service after purchasing wasn’t cold like other dealerships I’ve been too. 10/10
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
Bayway Cadillac of the woodlands
After searching for a good month for a used vehicle I finally found a dealership that would work with me with my trade in value, Laurel Williams and the sales managers moved mountains for me trying to get into a vehicle I wanted. I highly recommend Bayway Cadillac of the woodlands, top notch customer service and a pain free buying experience! Thank you! I will definitely be coming back for the next vehicle purchase.
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 Elevation
Vehicle information
Features
Reviews
One of the best dealerships I've worked with
Robbins always treats me kindly, updates me on service, and has gone above and beyond in helping me with savings.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
The entire process was the most upfront, honest, and seem
The entire process was the most upfront, honest, and seem less new car buying experience. Sales Associate Jason Albritton provided me with an online detailed invoice of drive out price including all taxes, fees, and extras. When I arrived at the dealer he stuck to his quote without any unexpected and surprise added costs. Business Manager Jordan Gonzales reviewed all peripherals like extended warranty and various protection plans without any pressure to buy. Highly appreciate and recommend Gullo Ford in Conroe Texas and Sales Associate Jason Albritton to all potential buyers.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great experience and service from sales.
Great experience and service from sales. I?m a repeat buyer from this dealership. Always a god experience with this sales group. Purchased and new truck. Thank you.






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 AT4
Vehicle information
Features
Reviews
Sold original used car before arriving but Ronald Garcia
Sold original used car before arriving but Ronald Garcia was very helpful and got us into something better! A great car buying Experience!






Vehicle information
Features
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Awesome!
Awesome!! Very great customer service! Polite! Everybody went out of their way to help and very respectful!
Vehicle information
Features
Reviews
Valet service for pick up and return of my vehicle was
Valet service for pick up and return of my vehicle was the best. On time and communication was by text and very informative. Good job. I will use the valet service and Planet Ford in Spring again. Thank you.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The service was excellent.
The service was excellent. The dealership towed our vehicle and for service provided fast and efficient and excellent service and even provided transportation for us back to pick up our vehicle when the service was completed. All of this was done at no charge for us and was covered by our warranty. This is probably the best service I have ever had by any car dealership.






Vehicle information
Features
Reviews
Start bumpy but they made it right.
Start bumpy but they made it right. Wonderful follow up from Lyndi. She made sure we had what we need. Grateful for her attention to detail.
There are 20 matching cars close to your year range.






Used
2023 GMC Sierra 1500 Elevation
Vehicle information
Features






Vehicle information
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Used
2020 GMC Sierra 1500 SLE
Vehicle information
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Vehicle information
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Used
2020 GMC Sierra 1500 SLT
Vehicle information
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Used
2022 GMC Sierra 1500 SLT
Vehicle information
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GMC Certified
2022 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2022 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2022 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features






Used
2019 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali
Vehicle information
Features






GMC Certified
2023 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2020 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2020 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2019 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2019 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 1500 | $29,902 | 1 Good deal |
2024 GMC Sierra 1500 | $41,999 | 12 Good deals |
2023 GMC Sierra 1500 | $31,695 | 6 Good deals |
2022 GMC Sierra 1500 | $34,405 | 5 Good deals |
2020 GMC Sierra 1500 | $24,991 | 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 $39,575, with pricing starting at $16,494.
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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