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Used
2021 GMC Sierra 1500 trucks
for sale
near
Robbins, IL
- 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
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Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
“Excellent Communication
My first experience at this dealership will definitely bring me back. We are so happy with our purchased! We had Alex Alverio from Sales, he was very professional & helpful, has awesome customer service & we highly recommend Alex. Thank you so much and keep it up!
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...






Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Salesman(Billy) and other managers were great to work
Salesman(Billy) and other managers were great to work with. Would definitely come back in the future and would have no issue recommending this dealership.
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 AT4
Vehicle information
Features
Reviews
buena atención Joel Hernández muy amable y calidad en
buena atención Joel Hernández muy amable y calidad en servicio y rapidez en su trabajo
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
We bought a used Hyundai couple of weeks ago.
We bought a used Hyundai couple of weeks ago. I think we got a good deal. The dealership was a good experience, specially compared to the other places we had been to. The sales person Christian Gonzales was extremely friendly, helpful and cooperative. His manager Renato Garcia was also a nice person to work with.
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
My recent purchase from B & M is probably the best
My recent purchase from B & M is probably the best dealership experience I’ve ever had! Dominic and Chuck were friendly, extremely knowledgeable and helpful… B&M has a great selection of vehicles, a great service team, a wonderful sales team and the showroom has some CLASSIC cars that you can view as you wait! 10/10 recommendation!






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Thanks Dralle Chevrolet
I just want to thank Kevin Dralle, Greg Dralle Jr. and Andy up at Dralle Chevrolet in Peotone. You guys always go above and beyond! I can not say enough good things about the guys up at Dralle Chevrolet. I now own my dream C8 thanks to you and your team! I can't thank you enough.






Used
2021 GMC Sierra 1500 Elevation
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Reviews
This dealership is amazing!
This dealership is amazing! No high pressure sales tactics, no last minute add-ons to the price. Great follow up after purchase to ensure we were completely satisfied with our purchase. Service went above and beyond expectations.






Used
2021 GMC Sierra 1500 Elevation
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Reviews
Ayana’s New Car
My sales consultant Travis was excellent he has great customer service and explained everything clearly. He made me feel very comfortable from his hand shake to his smile. He did a great job. Thanks Travis.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I recommend Old Orchard Nissan, is the BEST place to
I recommend Old Orchard Nissan, is the BEST place to service a Nissan! Gary is an incredible Manager, that leads a great team of Service Consultants that have wonderful Customer Service skills like Daniel and Mary. I have had nothing but the BEST Service experience with all of these wonderful individuals... I appreciate you Old Orchard Nissan for having a remarkable Service team!



Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Very nice dealership experience.
Very nice dealership experience. Jorge was very helpful and knowledgeable during my vehicle purchase. If you plan on purchasing from Toyota of Naperville, Jorge is the salesman to see.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Good customer service, very polite, nice vehicle.
Good customer service, very polite, nice vehicle. A very clean establishment. I would recommend this company. I hope nothing does not change my mind.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
JC and Marino dealership provided an exceptional
JC and Marino dealership provided an exceptional experience. JC walked us thru all the benefits, applications and dashboard to be sure we knew all the wonderful features of our new Jeep Grand Cherokee. In addition to knowledge sales people, the process of buying a new car was seamless. Everything from getting the registration card, license plates and applying for the title happened in JCs office! Everyone was super friendly and excited about our new car. It felt like we were treated like family… that’s how much care and attention we were given. 10 score all around!!! Thank you JC and Marino team.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Went very smoothly The is the fifth vechicle we have
Went very smoothly The is the fifth vechicle we have purchased from this dealer and really appreciate the process of the purchase We plan taking this vechical back for service for the entire time we own it






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Battery
Todd was very helpful and made sure my car was pulled inside when leaving as it was very slippery outside






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Fair Oaks was the only LIncoln dealer that had (in
Fair Oaks was the only LIncoln dealer that had (in transit) the exact 2025 Lincoln Aviator model and color scheme we were looking for. We were able to connect with them online and make a good deal on the purchase without having to make the extensive drive to the dealership. Krystal (internet sales manager) was great to work with. She handed us off to Eddie to complete the paperwork. All documents were completed online in the comfort of our home, and Eddie delivered the vehicle to us at home the day it arrived. Eddie continued to follow up after the sale to make sure we were satisfied and answer any questions we had about the vehicle. I can highly recommend this dealership.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Still shopping wish they can give answers without phone
Still shopping wish they can give answers without phone calls with dealers trying to make a sale






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
We've worked with Tony before & he is very
We've worked with Tony before & he is very knowledgeable & knows just what we like.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Brought my car in for regular maintenance and Gary made
Brought my car in for regular maintenance and Gary made the whole process really smooth. Everything was well organized, and once the service was done, he went over all the details with me. I was impressed with how easy it all was and would definitely recommend this place.






Vehicle information
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Reviews
I had a great experience.
I had a great experience. I purchased a car at my second visit. On my first visit Luke the manager was very kind. We decided to return because our impression of Luke. Herman was the sales representative. He was very knowledgeable.
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GMC Sierra 1500 prices by year
Model year | Average price | Deals |
---|---|---|
2026 GMC Sierra 1500 | $60,949 | |
2025 GMC Sierra 1500 | $57,094 | 8 Great deals |
2024 GMC Sierra 1500 | $54,560 | 6 Great deals |
2023 GMC Sierra 1500 | $48,884 | 24 Good deals |
2022 GMC Sierra 1500 | $43,278 | 6 Great deals |
2020 GMC Sierra 1500 | $35,181 | 16 Good deals |
2019 GMC Sierra 1500 | $32,158 | 8 Good deals |
2018 GMC Sierra 1500 | $26,014 | 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 $37,786, with pricing starting at $13,999.
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.