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
Luling, 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
Features
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
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
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
Repairs
I had some problems with my car and bought it to mossy motors and they repaired it
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
Customer
The experience was pleasant. The salesman and everyone involved made put forth the effort to make sure that I was comfortable with my purchase. The salesman, Guy, even drove the vehicle to my home to make sure it was the type of vehicle I needed for my husband who has difficulty getting in and out of cars. I appreciated that.
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.
Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Reviews
I had a top-notch car buying experience at Lamarque Ford!
I had a top-notch car buying experience at Lamarque Ford! My salesman, Kyran, was awesome?super down-to-earth, knowledgeable, and very patient throughout the entire process. The financial aspect, which can often be stressful, was also smooth and straightforward. I would definitely buy from Lamarque again in the future. Absolutely love my new Bronco Sport!!!
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 SLT
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 Denali
Vehicle information
Features
Reviews
Very friendly, knowledgeable staff.
Very friendly, knowledgeable staff. Quality vehicles. Kurt is great to work with, he has been in this business for a long time and knows his business.
Used
2021 GMC Sierra 1500 SLT
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
Vehicle information
Features
Reviews
Great service
A really easy process and good experience. Thank you so much Elliot Lewis for your great service. I’m totally satisfied with my new car. Thank you Elliot!
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I'm so thankful to our salesman, Joe Grego, in helping my
I'm so thankful to our salesman, Joe Grego, in helping my wife and I purchase a vehicle. We went in looking to purchase a new GMC Terrain, but it was above our budget. Joe made us feel comfortable and was patient with us in finding a 2023 Terrain in great condition and at our price point. I also want to thank the other Joe in the finance department. This was the first 'new' car purchase both me and my wife, so we had a bunch of questions. He was also patient and kind in answering all our questions. He helped us to be able to drive off in a beautiful vehicle that we could truly afford. Also, many thanks, to Joe Grego for capturing the moment by taking a picture of me and my wife in front of our 2023 GMC Terrain. He was thoughtful and respectful to ask our permission to post the picture on social media. We would not have that picture to look back on for memories of our first vehicle if not for him. I will certainly be going back to Crown Buick/GMC for any future vehicle purchases. I'll see you then, Joe.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Pleasure to do business with
I bought a 2011 Camaro SS from here Sept 2022, and I couldn’t be more pleased with my purchase. As a younger man (22 years old) I usually don’t get treated with as much respect and courtesy as older gentlemen do. Off the bat they were respectful, open minded, and overall a pleasure to do business with. I couldn’t be more happy with my purchase. After being lowballed for my 2020 Honda Civic trade-in or cash offer, I had 2 offers at a fair price and almost sold my car before visiting Danny here at Wholesale Auto. He beat the best cash offer I had for my car and got me in my beautiful red Chevrolet Camaro. Her name is Sally!
Vehicle information
Features
Reviews
Very professional and easy to work with very helpful and
Very professional and easy to work with very helpful and accommodating with financing options the sales persons are friendly
Used
2021 GMC Sierra 1500 Base
Vehicle information
Features
Reviews
Trucks Trucks Trucks
I was told to check out N & N Auto Sales in Houma that they were known for having trucks.. They must have 50 trucks on their car lot.. I found just what I was looking for. I Purchased a 2007 Dodge Ram 1500 Quad Cab Big Horn the truck was immaculate. I couldn't believe the truck had 101,000 miles on it. I'm love my truck and glad that I took the 1 hour and 1/2 ride down there. Thanks Ryan for your help.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Very nice people that were knowledgeable and professional
Very nice people that were knowledgeable and professional ! If you.are looking for a auto give them a chance to help you!
GMC Certified
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
One of the best service department I've seen.
One of the best service department I've seen. Did not buy my truck from there. And they are the ones that fixed and got it when the dealership that i bought the truck from didn't care if it got fixed or not. I will be buying my next one from BEST CHEVROLET. Thank yall
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I contacted Honda of Harvey, December 31, 2024.
I contacted Honda of Harvey, December 31, 2024. Ms Arias was very courteous and professional over the telephone and in person. Like some people, I do not like buying a vehicle. It can be very stressful. However, my experience was very pleasant with Ms. Arias taking the lead in assisting me.
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
great customer service but he did not have any
great customer service but he did not have any maintenance records for the vehicle. That was the deal breaker for me.
Certified
2021 GMC Sierra 1500 AT4
Vehicle information
Reviews
Sales ambassador Evan and the crew at Lamarque Ford did a
Sales ambassador Evan and the crew at Lamarque Ford did a great job presenting an excellent lease offer, without the needed to go back and forth with negotiations. Very professional, well run dealership - highly recommend!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Mostly always a heart breaker!
Mostly always a heart breaker! Have stated this many times before...to no avail! No initial person assigned to place a paper mat on your floor and collect your keys or move your vehicle to a unconscious location..no service rep to greet you with your request etc etc...
Vehicle information
Features
Reviews
Best Buying Experience .......... Yet Again !!!
Kipp and Jeramiah really did exactly what I needed to get my son a truck. Excellent deal on my trade, and excellent deal on the Tacoma. Very Satisfied !!!
There are 20 matching cars close to your year range.
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2023 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 1500 SLE
Vehicle information
Features
Vehicle information
Features
Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2022 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2022 GMC Sierra 1500 Elevation
Vehicle information
Features
Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2022 GMC Sierra 1500 SLT
Vehicle information
Features
-
Prev - 1
-
Next
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $60,043 | |
| 2025 GMC Sierra 1500 | $70,265 | |
| 2024 GMC Sierra 1500 | $50,889 | 7 Good deals |
| 2023 GMC Sierra 1500 | $47,193 | 6 Great deals |
| 2022 GMC Sierra 1500 | $41,143 | 10 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 $36,072, 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.
Research the 2021 GMC Sierra 1500
Compare the 2021 GMC Sierra 1500
- ${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.
