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*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.
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Used
2021 GMC Sierra 1500 trucks
for sale
near
Jefferson, LA
- 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
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Reviews
Service/Repair at Ray Brandt
I have recently moved to the area and have begun to use Ray Brandt Toyota. All of the personel has been courteous and professional. Much of my good experience has been due to Doug M. in the service department who made me feel my vehicle was being left in competent hands for the necessary repairs. When I am ready to purchase a new vehicle, I will use Ray Brandt as I feel the most important part of a purchase is the follow-up service one receives.
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
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Reviews
Nice and friendly Staff
Great people to work with! They were awesome to work with on the purchase of our new vehicle. I would highly recommend them to anyone purchasing or getting your vehicle serviced
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.






Vehicle information
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Reviews
Amazing Service
The service at Ray Brandt Toyota in Metairie has been amazing. I began doing business with Toyota in Metairie in 2011. At the time I was 28 and had been through more cars than I can count just out of boredom. So in 2011, I leased a 2011 Camry. I was shocked to know that for 2 years I wouldn't have to pay for oil changes and routine services on my car. My visits for service were nothing less of satisfactory. In 2013, I received a call from the dealership asking if I would be willing to trade in my car since I had less than 12,000 miles in almost 2 years. So I accepted and leased another Camry. Again service was great. Now to the really good part...recently I decided to trade my car in this time to purchase a 2016 pearl white Camry. My salesman was Jason Pastor. He spent the entire day making sure I found the right car. I kept apologizing to him for taking up his time since I couldn't decide on the car. I was torn between leasing and buying. Jason must have shown me 10 cars before I made my decision. At no point did he seem annoyed. He took his time and never pushed me into something I wasn't comfortable in. When I finally decided on the Pearl white Camry with black interior it was not in stock at the dealership but was available in MS. The next day my car was transported to the dealership in Metairie. I also told Jason I wanted the windows tinted, so once the car arrived Jason personally brought my car to the shop for tint. Days later I called Jason about LED's for my headlights. He made a call, had them ordered and a few days later I brought my car to Jason who then brought my car to have them installed while I waited at the dealership for only 30 minutes. Followed with a car wash. I really felt like I was getting the VIP treatment. Jason was amazing and I would recommend him and the entire staff at Ray Brandt to someone looking to purchase/lease.
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
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Reviews
The Staff at Legacy made my process easy.
The Staff at Legacy made my process easy. Gabby and Charissa are the best. Got the car I wanted. I'll continue to do business with them .
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 Elevation
Vehicle information
Features
Reviews
Survey
Greeted promptly, confirmed 11:00 am appointment. Was surprised with tire lugs up sell. Authorized purchase due to safety concerns. Satisfied with oil change and tires rotation services.






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Reviews
I purchased a 2025 GMC that was used which was listed
I purchased a 2025 GMC that was used which was listed online. I got an immediate response when I texted and they were very helpful in providing information. I feel I got a good deal. They handled getting the vehicle shipped to NC. I’d highly recommend Crown and Brandy (sales).



Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I had a great experience at Westbank Legacy!
I had a great experience at Westbank Legacy! My Service Provider was very courteous and friendly. I was told what my car needed to have service/replaced. I was NOT pressured to get any extra service performed. My car, Envoy 2006, runs great!! Please be sure to tell the mechanics what a great job they did to my Chester! Thank you!!






Used
2021 GMC Sierra 1500 SLT
Vehicle information
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Reviews
Zack was super easy to work with.
Zack was super easy to work with. Took care of everything and kept me informed. All the work was completed as expected and now I', good for another 30,000 miles






Used
2021 GMC Sierra 1500 Denali
Vehicle information
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Reviews
Joseph Grego was a very helpful salesperson.
Joseph Grego was a very helpful salesperson. This was our second purchase from Crown Buick through Joseph Grego and we appreciated doing business with him.






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2024 Truck
Great experience highly recommend darrlyn as your salesman. Very prepared and professional when it came to my truck purchase.






Used
2021 GMC Sierra 1500 Denali
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Reviews
Repairs
I had some problems with my car and bought it to mossy motors and they repaired it






Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Amazing experience!
Amazing experience! Everything was transparent no surprises, was worried about the long drive and having the dealership change things up on me but no everything was perfect. My sales man really is a down to earth gentleman, he went above and beyond for me and really hit a personal level of trust! Kimble wright is a name I will never forget based on my experience at this dealership.






Used
2021 GMC Sierra 1500 AT4
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Reviews
Perfect service experience.
Perfect service experience. Josh called at every step of the way. Great customer service!!! Called another Chevy dealership and still have not heard back from them.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Hands down my best car buying experience.
Hands down my best car buying experience. I will purchase my next vehicle with Crown Buick GMC.

Used
2021 GMC Sierra 1500 Base
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Reviews
Awesome Service and on time.
Went in to get and oil change and I had a great time while I was waiting. Free Doughnuts and orange juice.
There are 20 matching cars close to your year range.






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Used
2022 GMC Sierra 1500 Elevation
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Used
2022 GMC Sierra 1500 Elevation
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Used
2019 GMC Sierra 1500 Elevation
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Used
2023 GMC Sierra 1500 Denali
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Used
2020 GMC Sierra 1500 SLE
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Used
2019 GMC Sierra 1500 SLT
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Used
2019 GMC Sierra 1500 SLT
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Used
2023 GMC Sierra 1500 AT4
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GMC Certified
2023 GMC Sierra 1500 Denali
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Used
2020 GMC Sierra 1500 SLT
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Used
2023 GMC Sierra 1500 SLT
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Certified
2022 GMC Sierra 1500 Elevation
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Used
2020 GMC Sierra 1500 SLE
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GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $41,630 | |
2025 GMC Sierra 1500 | $33,070 | 2 Good deals |
2024 GMC Sierra 1500 | $32,360 | 15 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 $38,855, with pricing starting at $15,480.
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
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