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
Killian, 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
Vehicle information
Features
Reviews
Excellent service
I was looking for a van and Austin was extremely helpful sending more photos and keeping me informed of everything. When I arrived, Austin was off and I was assisted by Devin. He led me to the right vehicle for the right price. Only trouble was they sold the vehicle I wanted before I arrived. They were extremely professional and helpful.
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 SLE
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 Elevation
Vehicle information
Features
Reviews
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
Scheduled maintenance and ?
Scheduled maintenance and ?recall? issues completed without delay (less than four hours). Necessary replacements and updates discussed and recommendations offered. All Ford associates were friendly and helpful.
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 AT4
Vehicle information
Features
Reviews
Totally satisfied
They took care of me in one day and surprisingly it wasn?t too expensive for what was done.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Philip Keller Livingston
Always get professional help...Everyone's courteous and always give excellent answers regarding service rendered.
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
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
After moving to Northshore I found myself needing a
After moving to Northshore I found myself needing a larger, higher vehicle! I will say with all honesty I absolutely dread buying new cars! As an older lady I feel that I’m a target for an “easy” sale! My daughter recommended Honda of Covington! In all honesty from the moment I sat down with Mr Beck I felt totally at ease and completely comfortable with all parts of the process and everything he presented to me! He was very genuine and gave no pressure at all !! The dealership itself had a very friendly and relaxed feel ! I decided on a Honda CRV Exl.. It’s perfect!
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Hailee was great to work with.
Hailee was great to work with. My 2020 Jeep GC busted a water pump. Service got it repaired along with some other parts. That lifetime warranty is awesome.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
My experience here was great & fast.
My experience here was great & fast. I do have to bring the car back for a little work but they said they can fix it
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
They handled everything even delivered my vehicle to me,
They handled everything even delivered my vehicle to me, they went above and beyond what was needed, everything was top notch and everyone was straight forward with me
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
My experience at Ross Downing was impeccable!
My experience at Ross Downing was impeccable! I have purchased ?several? cars, but this transaction was indeed faultless. Miss Kisha Cushenberry is my car saleswoman - a true professional!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Jay Drago was my service advisor, very professional and
Jay Drago was my service advisor, very professional and courteous. Kept me informed about my vehicle. I would love for to be my advisor on each of my visits. Would recommend this dealership
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Jason Payne definitely made the purchase process the
Jason Payne definitely made the purchase process the easiest! My husband recently had back surgery, so we were able to do everything very quickly, all we had to do was sign papers when we got to the dealership!! We were at the dealership less than an hour! We will definitely be doing business with Jason Payne in the future! I LOVE my GMC Terrain!!!
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
GOOD PEOPLE
helped with repairs after purchase . treated me better than any dealer I have done business with. I live in Miss. and will buy here again. Bruce
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Chill environment!
These guys were cool to do business with. Not pushing a vehicle on you! They answered all the questions that I asked. I went here to buy a good used truck. I prayed before I stepped foot on their lot and we talked business. First time buying a diesel truck, so they walked me through the steps. I'd go here rather than to a fast talking city slicker. Visit and buy was pleasant! Will tell the fellas to swing by. Thanks dudes!👊🏾
-
Prev - 1
- 2
-
Next
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $56,501 | 1 Good deal |
| 2024 GMC Sierra 1500 | $49,488 | 6 Great deals |
| 2023 GMC Sierra 1500 | $47,985 | 6 Great deals |
| 2020 GMC Sierra 1500 | $34,355 | 7 Good deals |
| 2019 GMC Sierra 1500 | $29,488 | 7 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 $36,083, 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
2021 GMC Sierra 1500 by city
-
2021 GMC Sierra 1500 in Springfield, LA
9 Great Deals out of 26 listings starting at $24,900
-
2021 GMC Sierra 1500 in Albany, LA
8 Great Deals out of 24 listings starting at $24,900
-
2021 GMC Sierra 1500 in French Settlement, LA
8 Great Deals out of 21 listings starting at $24,900
-
2021 GMC Sierra 1500 in Livingston, LA
7 Great Deals out of 20 listings starting at $24,900
-
2021 GMC Sierra 1500 in Port Vincent, LA
8 Great Deals out of 21 listings starting at $24,900
-
2021 GMC Sierra 1500 in Reserve, LA
11 Great Deals out of 27 listings starting at $27,497
-
2021 GMC Sierra 1500 in Walker, LA
7 Great Deals out of 20 listings starting at $24,900
-
2021 GMC Sierra 1500 in Garyville, LA
9 Great Deals out of 22 listings starting at $27,497
-
2021 GMC Sierra 1500 in Laplace, LA
11 Great Deals out of 27 listings starting at $27,497
-
2021 GMC Sierra 1500 in Gramercy, LA
8 Great Deals out of 21 listings starting at $27,497
-
2021 GMC Sierra 1500 in Lutcher, LA
7 Great Deals out of 20 listings starting at $27,497
-
2021 GMC Sierra 1500 in Edgard, LA
11 Great Deals out of 25 listings starting at $27,497
2021 GMC Sierra 1500 by body style
- ${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.
