Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*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.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
Used
2021 GMC Sierra 1500 trucks
for sale
near
New Melle, MO
- 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
I was very happy with my time dealing with Charles.
I was very happy with my time dealing with Charles. He had the truck I wanted to test drive ready before I arrived at the dealership. I felt like family. Charles was very, very patient with me the whole time.
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 Elevation
Vehicle information
Features
Reviews
Best treatment and exp I have had thanks to Scott
I have been going there for a long time now and as youngish woman who’s not rich - I can tell you I have always been treated with the utmost respect and courtesy! Scott had been my sales man and is great with his knowledge of the vehicles and explained how all the gadgets work and even went over and beyond for me! He communication is excellent and he is upfront and honest as it gets :) He work With my schedule and makes me feel at home while waiting on word from the bank. Scott always explained the paperwork and what it meant and why - which was so nice for him to take the time and do that with me. I have been to other dealerships years ago and most sales people Would Look at Me and see tomboy and think I’m not worth their time or effort and blow me off. Mike the financial guy was also great, he did his best for me & I know because I saw all the work he was doing and he explained things very well also. Especially with the extended warranty - Which is nice because some will just say “ call them yourself to see what’s covered on the vehicle “. They got me one that cover specifics that I needed for the future :) Lastly even when I would pop in to drop of papers or whatever reason- if Scott wasn't there, The other sales men still got my Questions answered and treated me very well. I would recommend anyone go there and they will have a better experience purchasing a vehicle then they have elsewhere and not feel ripped off …. Which we all know is nice - !! Thanks to all the people at Dave Taylor on Manchester rd - stl :)
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...






Vehicle information
Features
Reviews
Haileigh Cenatiempo
Great service easy to talk to and understand they took the time to listen to me
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
always friendly service
friendly, reliable service, never have had a problem getting an appointment. I drive twenty miles just because of the good service received.
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
Great Service!!
I was looking at buying a 2014 Toyota Corolla and Willie was the 1st person I talked to at the dealership. There was absolutely no pressure from the start of the conversation to even buy the vehicle. Before we even talked about anything sales wise he recommended that I take a look at the car and test drive it before anything to make sure it was everything I wanted. Even during the test drive, we didn't talk about buying the car, it was just a normal conversion. After test driving the vehicle I needed to think about it and even then Willie never tried to keep me at the dealership to try and buy the car. He followed up with me a few days later to see how everything was going and even put the car on hold for me so no one else would take it/buy it. I ended up not buying the vehicle this time, after thinking about it for a few days. The customer service I received and the atmosphere that, i'd have to say Willie created, was Fantastic and would highly recommend asking for him if you are looking for a car. I couldn't be more satisfied with the service I received, and will be going back to him towards the end of the year to then purchase a vehicle.
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
So easy, Emily is the Bomb
I always dread the car buying process, it’s long and you need to play the game. But Emily listened to my wants and needs. Honored my wishes on certain cars. She worked for me not for what the finance company wanted. Thanks Emily!! For the easiest car buying experience ever!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Services
Awesome your staff is the best I've ever !!! Will always you BELLEMANN its literally the best customer service group I've seen Worth the extra mile to get there!!!






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great atmosphere and Mike did an awesome job helping with
Great atmosphere and Mike did an awesome job helping with the purchase of my vehicle, I would recommend Jim Butler of Fenton ,MO to anyone looking to purchase a vehicle, thanks Mike





Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I was served well by my salesman James Willis, He was
I was served well by my salesman James Willis, He was very friendly, helpful and he took the time to explain the process and was so helpful in explaining all of the different versions of the Silverado. I am very grateful to all of the assistance he provided me and I am so happy with my purchase. Will definitely be referring my friends to your dearship,






Vehicle information
Features
Reviews
BRANDON WAS AWESOME!
Brandon did a great job! He was very helpful with getting me into my new Mustang! Thanks so much Brandon! I live my new car! 😄






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Brian Reis did a great job.
Brian Reis did a great job. My husband got a new truck and Brian helped us find the right truck and walked us through the whole process






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great Service
I bought a 22 Ford Bronco from Clement Ford in December 22 and have had on scheduled service which went great using the valet service they provide. However, what really impressed me was this week I had an issue with the bead locks on my wheels. I spoke to Jerry and Alex in their service department and they were able remove the bolts I was having issues with, allowed me to use the valet service once again, and didn't even charge me for the time. I'm very happy with my experience with them so far!






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Love this dealership!
Love this dealership! The new location is wonderful - I send my family here. My brother bought a car, and loves it!






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Mark was great to work with, explained all the features
Mark was great to work with, explained all the features and quirks that our car had. Would definitely recommend. Thanks Mark.






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
From the first time I set foot on the Buick car lot, Beau
From the first time I set foot on the Buick car lot, Beau set off a great car search experience for me and my family. Not only was he awesome but everyone I met there was warm, friendly and caring. The O'Fallon Buick GMC not only brought back my faith in a car salesperson but also purchasing at a car dealership. From the salesman to the financial department each person took time to make sure you understood exactly what was happening. Hopefully, I want have to purchase another car for a while, but if so, I know where to go.






Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Excellent service.
Excellent service. Approved immediately. Thank you, Peter, for your help! There are many options to choose from.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I recently purchased a car from this dealership, and I
I recently purchased a car from this dealership, and I cannot say enough how wonderful the experience was! From the moment I walked in, I was greeted with a warm and friendly welcome that immediately put me at ease. Every step of the process was smooth, straightforward, and stress-free. The customer service here is nothing short of fantastic. The staff was knowledgeable, patient, and truly seemed to care about helping me find the right vehicle. Special thanks to the general manager, Scott, who went above and beyond to make sure everything went as smoothly as possible. He made what can often be a stressful experience feel easy and enjoyable. I would highly recommend this dealership to my family and friends because I know they would have a great experience, just like I did.
There are 20 matching cars close to your year range.






Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Vehicle information
Features






Used
2020 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
2023 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2023 GMC Sierra 1500 Denali
Vehicle information
Features






Used
2022 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2022 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2019 GMC Sierra 1500 SLE
Vehicle information
Features





Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2022 GMC Sierra 1500 Elevation
Vehicle information
Features




Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2023 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features






Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features
-
Prev - 1
-
Next
GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $43,095 | |
2025 GMC Sierra 1500 | $36,900 | 1 Good deal |
2024 GMC Sierra 1500 | $38,290 | 7 Good deals |
2023 GMC Sierra 1500 | $34,000 | 10 Good deals |
2022 GMC Sierra 1500 | $37,782 | 6 Good deals |
2020 GMC Sierra 1500 | $24,990 | 8 Good deals |
2018 GMC Sierra 1500 | $20,995 | 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 $38,565, with pricing starting at $14,480.
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.
Research the 2021 GMC Sierra 1500
Compare the 2021 GMC Sierra 1500
2021 GMC Sierra 1500 by city
-
2021 GMC Sierra 1500 in Dardenne Prairie, MO
6 Great Deals out of 24 listings starting at $29,495
-
2021 GMC Sierra 1500 in O'Fallon, MO
6 Great Deals out of 24 listings starting at $29,495
-
2021 GMC Sierra 1500 in O Fallon, MO
6 Great Deals out of 24 listings starting at $29,495
-
2021 GMC Sierra 1500 in Cottleville, MO
6 Great Deals out of 27 listings starting at $29,495
-
2021 GMC Sierra 1500 in Weldon Spring, MO
6 Great Deals out of 27 listings starting at $29,495
-
2021 GMC Sierra 1500 in Wildwood, MO
5 Great Deals out of 28 listings starting at $29,495
-
2021 GMC Sierra 1500 in Saint Peters, MO
6 Great Deals out of 27 listings starting at $29,495
-
2021 GMC Sierra 1500 in St. Peters, MO
6 Great Deals out of 27 listings starting at $29,495
-
2021 GMC Sierra 1500 in Gray Summit, MO
6 Great Deals out of 27 listings starting at $29,495
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
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.
${award_blurb}
${award_two_blurb}