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Used
2021 GMC Sierra 1500 trucks
for sale
near
Saint Peters, 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 Denali
Vehicle information
Features
Reviews
Pleasant Experience
The lease on our car was up and a friend recommended Suntrup in South County. Since we were up that way we decided to check it out and were greeted by Zach Seiler at the door and we’re pleasantly surprised by his knowledge, patience, and low pressure salesmanship. In a relatively short time we were transferring items from our old car into our new 2021 Volkswagen Jetta-which we really did not plan to purchase that day. And by the way Zach helped us with that, 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
Went to look at a Rav 4.
Went to look at a Rav 4. IT greeted me and asked what options were important to me. He answered my questions and explained everything to me. The financing part was painless. IT set up my phone for me and explained all the features of the car and showed me how they work. I did not feel pressure and the entire experience only took about 2 1/2 hours. I hope that my service experience goes as well.
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 AT4
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
I got a Jeep at Frank Leta today and it was a great
I got a Jeep at Frank Leta today and it was a great experience. Will Ziebers was very helpful and nice. This was my 2nd car from Frank Leta and great service each time.
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
Tony, Bryan and Joe made this process painless!
Tony, Bryan and Joe made this process painless! We have bought 3 other vehicles from Jim Butlers in the past 10 years and have never been disappointed
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!
Certified
2021 GMC Sierra 1500
Vehicle information
Features
Reviews
Our experience with Weber Ford, our salesman Luke Ramos,
Our experience with Weber Ford, our salesman Luke Ramos, Alex Carver and Matt the Finance Guy treated us wonderfully. We definitely felt like they wanted our business. This was a "No Pressure" deal. We took a test drive, while they evaluated our trade. In short time they made us a surprisingly good offer. We negotiated a little, and came to a good deal. We are very happy with our new vehicle and Luke as well as Weber Ford have continued to go above and beyond since the sale to make sure we are happy. We will happily recommend Weber Ford and Luke Ramos
Used
2021 GMC Sierra 1500 AT4
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.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
awsome poeple smooth dealings will be buying amoot of
awsome poeple smooth dealings will be buying amoot of cars from them. cause they have wverything you could want from super cars to pick up trucks or any make modelmof car you can think of clement is awsome.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Excellent customer service serveral times and when I
Excellent customer service serveral times and when I brokedown on the side of the road. Thank you Shay Strong!!
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Jamie was the best, would send anyone to him.
Jamie was the best, would send anyone to him...very knowledgeable, attentive, and relaxed through the entire process. We will seek him out in the future and send friends.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I had an excellent experience working with Rodney Brown.
I had an excellent experience working with Rodney Brown. From the very beginning he was knowledgeable, attentive, and genuinely interested in helping me find the right truck. He provided clear, honest recommendations, and I never felt pressured to make a purchase.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
such a friendly company.
what a great dealership. there was no selling, they educated me. I know what I wanted almost and they filled the gaps. Every time I go in there I get treated as part of the team
Vehicle information
Features
Reviews
We just had our 2017 Ford Escape in for an oil change and
We just had our 2017 Ford Escape in for an oil change and its annual checkup. David Farmer the Service Advisor did an excellent job of putting up with 2 old cranky people who complained a lot about various little things. He is a kind young man that gives a good impression of your service department.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Supervisor
The short video clip Greg used told me all what I want in the car. He was excellent in working me through the entire process of buying my car.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Worked with Larry on my new 1500.
Worked with Larry on my new 1500. Professional handling of all aspects of the transaction. Worked with me to get a "win/win" for both parties. Would recommend Larry in all your Chevrolet needs.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Thank you Jim Trenary
I was a little leery to have my vehicle serviced here after reading some of the reviews but decided to give them a chance. I couldn't be happier with the service I received from everyone at Jim Trenary. They got my vehicle in right away and kept me up to date on my repairs. I would absolutely recommend Jim Trenary for sales or service.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great day
Buying a car made easy! Beautiful facility with everything needed to make that difficult decision less painful. Wonderful staff with great coffee and snacks. Thanks Dave Keyser
There are 20 matching cars close to your year range.
Used
2020 GMC Sierra 1500 SLE
Vehicle information
Features
Used
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2022 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2019 GMC Sierra 1500 SLT
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Used
2019 GMC Sierra 1500 Denali
Vehicle information
Features
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2019 GMC Sierra 1500 SLT
Vehicle information
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2019 GMC Sierra 1500 SLT
Vehicle information
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2022 GMC Sierra 1500 SLT
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2022 GMC Sierra 1500 SLT
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2023 GMC Sierra 1500 AT4X
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2022 GMC Sierra 1500 Denali Ultimate
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Used
2019 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 1500 Elevation
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Features
Used
2019 GMC Sierra 1500 SLT
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Features
Used
2020 GMC Sierra 1500 AT4
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Used
2022 GMC Sierra 1500 Elevation
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Used
2022 GMC Sierra 1500 SLE
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Used
2023 GMC Sierra 1500 SLT
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Used
2022 GMC Sierra 1500 Denali
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Used
2023 GMC Sierra 1500 Elevation
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GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $58,952 | |
| 2025 GMC Sierra 1500 | $47,328 | 5 Great deals |
| 2024 GMC Sierra 1500 | $48,970 | 7 Great deals |
| 2023 GMC Sierra 1500 | $42,354 | 9 Good deals |
| 2022 GMC Sierra 1500 | $41,546 | 6 Good deals |
| 2020 GMC Sierra 1500 | $32,530 | 10 Good deals |
| 2019 GMC Sierra 1500 | $32,538 | 11 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 $35,628, with pricing starting at $14,800.
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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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.
