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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 AT4
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
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
I was concerned and very disappointed that there were no
I was concerned and very disappointed that there were no loaner cars available when I delivered my vehicle for warranty service. This was alarming, especially when it was determined that the items needed for the repairs were on extended backorder. Beck & Masten did make good on the situation by paying the cost of a rental car. The service personnel did a great job in keeping me updated, throughout the process.
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 job got me riding again luv livluv I will go back
Great job got me riding again luv livluv I will go back there again if I need service job well done good job Sterling Chevrolet I'll be back
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 Denali
Vehicle information
Features
Reviews
The actual service and customer service was excellent but
The actual service and customer service was excellent but the timing of the service was a little too long. I came in for an oil change and it took me an hour and thirty minutes. I had an appointment was checked in 15 minutes before appointment time. But overall I would definitely recommend this location because they have great customer service and servicing.
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.






Vehicle information
Features
Reviews
I had a very positive experience at Doggett Ford in
I had a very positive experience at Doggett Ford in Houston, Texas! The staff was friendly and knowledgeable, and they made my truck buying process smooth and stress-free. My sales rep Chris was helpful and answered all my questions. I felt like they were truly looking out for my best interests, not just trying to make a sale. I highly recommend Doggett Ford to anyone looking for a car or truck! They are top notch.
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!






GMC Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Jarvis, our salesman, was great and we had a very
Jarvis, our salesman, was great and we had a very positive experience with the dealership.






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






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!






GMC Certified
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Salesperson great.
Salesperson great. New car and truck detailed to go. Finance department good, Inventory good on both suv and small truck. Financing through my credit union.
Certified
2021 GMC Sierra 1500 Elevation
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
Great customer service!
Shopping for a car for my granddaughter we visited Demontrond Volkswagen in Spring one afternoon. Steave Castillo(Cajina) ,sales consultant, met us outside and proceeded to show us the cars and answer all our questions. Great salesman, no high pressure. After checking other dealerships we returned to Demontrond and completed our purchase.

Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Thanks ,Alex, for helping me with my fuel door issue.
Thanks ,Alex, for helping me with my fuel door issue. You were instrumental in getting me in and out in no time!
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great service.
Great service. I will definitly use them again. Got us right in and out on time they said it would take. I will recommend them to my family and friends.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
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2022 GMC Sierra 1500 SLT
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2022 GMC Sierra 1500 Elevation
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2023 GMC Sierra 1500 Denali Ultimate
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2022 GMC Sierra 1500 AT4X
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Certified
2023 GMC Sierra 1500 AT4X
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Used
2023 GMC Sierra 1500 Denali
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Used
2022 GMC Sierra 1500 AT4X
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GMC Certified
2023 GMC Sierra 1500 Denali
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $41,605 | |
2025 GMC Sierra 1500 | $32,925 | 1 Good deal |
2024 GMC Sierra 1500 | $40,999 | 8 Good deals |
2023 GMC Sierra 1500 | $35,999 | 18 Good deals |
2022 GMC Sierra 1500 | $32,777 | 10 Good deals |
2020 GMC Sierra 1500 | $18,391 | 7 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 $38,981, 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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