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Used
2021 GMC Sierra 1500 trucks
for sale
near
Zionsville, IN
- 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
Amanda Wallace was very patient, and helpful.
Amanda Wallace was very patient, and helpful. She showed us all of the choices that were available to us. My daughter and I couldn't agree on which SUV to pick. But, Amanda deserves a raise!!!!!
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 Denali
Vehicle information
Features
Reviews
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 Base
Vehicle information
Features
Reviews
Roberto & Zach did a great job helping me out !
Roberto & Zach did a great job helping me out ! They got me approved with a good rate and affordable monthly payment! Thank you
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
So many positives, except my battery purchase!
For the past 37+ years I have driven Cadillacs purchased from Lockhart! ALL SERVICE WORK has been performed at Lockhart, as well. I have always been pleased and continue to return to Lockhart for a car purchase and all service work! However, the last BATTERY I purchased from Lockhart failed after approx 11,000 miles and left me stranded last Friday. I expected better than 11,000 miles from a Lockhart purchase! I'm disappointed in the quality and performance of this battery!
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
Owner
Thanks Doug Walker for the great experience! I would recommend anyone shopping for a new/used vehicle to call him!
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
Great Experience in which Rick was very helpful
Great Experience in which Rick was very helpful throughout the whole buying process! Definitely will buy from Skillman again!






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Best buying experience I have ever had.
Best buying experience I have ever had. Informative, nice, clean facility amazing purchase packages! I love my new truck and feel like I received the best deal out there! Everyone has been available for any questions I had before, during and after my purchase.






Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Never been treated so well, everyone treated me like
Never been treated so well, everyone treated me like family, the whole process was seamless from start to finish my salesman Garrett Steele was amazing and made it easy, from sales to financing to paperwork could not be more perfect.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great people ,very professional and helpful!
Great people ,very professional and helpful!!i was very pleased ! My car is going good now,thanks!






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I’ve been buying from Fishers for years.
I’ve been buying from Fishers for years. They have more luxury imports than I’ve ever seen in one place. Great folks too.






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Jorge a A+ job and very respectful He meet all the
Jorge a A+ job and very respectful He meet all the needs for me Very quick and understanding






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
We just purchased a new vehicle from Hare Chevrolet.
We just purchased a new vehicle from Hare Chevrolet. We worked with Reneau in sales, Ian and Mike from the management team as well as Bryan in finance. All three of them were professional and did their best to help us with our decision while keeping our best interest in mind. They weren’t trying to sell us - they wanted us to get the vehicle that best fit our needs. It didn’t feel like it was a one time purchase, it felt like they wanted to build a lasting relationship with us. Thank you!






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
I enjoyed my experience with the salesman that I worked
I enjoyed my experience with the salesman that I worked with. He was very helpful and nice. I ended up purchasing a vehicle but I later realized that the price was more than what it was advertised for and I was told, the windshield wipers needed replaced right away, and I was told they would put gas in it for me. I traded in my vehicle with almost 3/4 tank of diesel gas. I was given barely a 1/4 tank of gas which didn’t even get me home. Rather disappointed in those details. Andy Mohr sells enough vehicles (25 the weekend I bought mine), that attention to the details should be their priority!






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
The customer service was amazing and I will come back for
The customer service was amazing and I will come back for sure thank you so much and I will spread it around how amazing it was Evan miller was very I understanding he worked with me on the Price.






Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
The service was very good and the staff was knowledgeable
The service was very good and the staff was knowledgeable and friendly. I was notified when to come pick up my car. I was offered the opportunity to wait in their lounge where they provide a variety of food and drinks for their customers.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
excellent service.
excellent service. I highly recommend that you talk to Anthony Barton for your service needs.






Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Thought I needed new brakes.
Thought I needed new brakes. That was not the case. It was only a rock that was stuck in the wheel making the noise. Appreciated the honesty.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features






Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Moe was super helpful with helping me find my perfect
Moe was super helpful with helping me find my perfect first car and worked to help me get the best deal! He was an absolute treat to work with! Gary was so nice as well! He helped us to figure out what we needed and was very personable.
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $36,985 | |
2025 GMC Sierra 1500 | $32,910 | 2 Good deals |
2024 GMC Sierra 1500 | $38,107 | 22 Good deals |
2023 GMC Sierra 1500 | $34,253 | 9 Great deals |
2022 GMC Sierra 1500 | $34,553 | 12 Good deals |
2018 GMC Sierra 1500 | $16,500 | 12 Good deals |
2017 GMC Sierra 1500 | $17,371 | 6 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 $38,098, with pricing starting at $13,980.
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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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.