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
Seffner, FL
- 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
Used
2021 GMC Sierra 1500 Elevation
Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Pleasent Experience- Al Hendrickson Toyota!
From the minute I walked in to Al...==> Hendrickson’s dealership we were taken care of from the beginning to the end. I highly recommend that you visit their dealership for your next vehicle purchase.
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
I worked with Johnie S.
I worked with Johnie S. and I would highly recommended him to anyone looking for a new car. Even when we were in the heat of negotiations he was polite, respectful, and transparent. Are negotiating via text on a specific vehicle he was able to send us all the documents over email and got us in and out of the dealership in 90m. Wayne in finance was extremely friendly, pleasant, and made a typically painful process painless. It?s clear the manager Steve has this place running smoothly.
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
My truck maintenance was handled promptly with
My truck maintenance was handled promptly with professionalism. When I went to pay for the service however, they wanted an additional 28$ on a 1K bill to use a credit card. A debit wouldn't incur this fee. This seems like usury and seems over the top.
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
JJ was my sales rep Great people not pushy would
JJ was my sales rep Great people not pushy would recommend to anyone in the market!!
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Looking for a good trade-in on ATS
Stopped in with an invite for a trade-in of my ATS. Paul Dowman was very pleasant and informative. We couldn't come to an agreement on the trade-in value of my ATS as it had been in an accident involving the air bags. While in great condition in my opinion, the air bag incident was a deal breaker. Everyone tried, but I decided to keep the car, as it's running fine. Will head back to Dimmitt when ready for my next Caddy.
Vehicle information
Features
Reviews
Evo provided me with quality service and great prices.
Evo provided me with quality service and great prices. Shawn was efficient and very helpful!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
My sales associate, Trenton Jump, responded immediately
My sales associate, Trenton Jump, responded immediately and effectively. Every question I had, he either had the answer, or knew where to get it. I bought the car from Arizona, and being across the country didn't cause any problems. Trenton was a true pro and helped me tremendously.
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great Place.
We would recommend this Dealership to anyone, very honest and reliable . The service department is very knowledgeable, And the service technician Thank you all so much for everything you do.
GMC Certified
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
From check-in to completion of required service I was
From check-in to completion of required service I was treated with courtesy professionalism and that my time was important My vehicle required a road accident covered tire service and the shop was extremely efficient in ensuring both the tire and the ability to install it did not waste my time
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great experience at AutoNation Ford.
Great experience at AutoNation Ford. Second vehicle purchased there and it was a smooth process. Our sales consultant - Ahmed was patient, professional and courteous.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Buying our vehicle at Kelley Buick GMC was a great
Buying our vehicle at Kelley Buick GMC was a great experience. Our Sales Consultant Braxton Nyland was waiting for us with the vehicle ready to test drive. We loved the vehicle and proceeded to the showroom to work out the details. To our surprise everything was up front and open, no exhausting back and forth. The General Sales Manager Brandon Wundrow also checked to make sure we had everything we needed and thanked us for our business! In no time our new vehicle was ready to drive off the lot!
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I had an excellent experience at Kelley Buick GMC.
I had an excellent experience at Kelley Buick GMC. From start to finish, the team treated me with professionalism, honesty, and respect. They took the time to answer all my questions, walked me through every detail without pressure, and made sure I got exactly what I was looking for. A special thanks to Gustavo Sanchez and Russell Hernandez — both went above and beyond to make sure the entire process was smooth and stress-free. They were knowledgeable, patient, and genuinely cared about finding the best fit for me. The finance process was straightforward, the dealership was clean and welcoming, and I never once felt rushed or “sold.” If you’re looking for a dealership that values customer service and treats you right, Kelley Buick GMC is the place to go. I’ll definitely be back for my next vehicle.
Used
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Mavrick
So far very so good I ordered a maverick 12\13 Just waiting now for it to get here Sale person is Dell he has been very helpful
Used
2021 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Everything was great , finished in a timely matter!
Everything was great , finished in a timely matter! Luke is always knowledgeable. Courteous and friendly!
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Excellent waiting area.
The service rep was excellent. Answered all my questions and kept me informed as to what was going on. The waiting area was clean and well maintained.
Vehicle information
Features
Reviews
Great experience.
Great experience. They were professional and treat their customers with respect. I would go back there when I need another car.
Used
2021 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Best place from purchasing your car Manny sales man is
Best place from purchasing your car Manny sales man is amazing. Matt service man amazing as well. Highly recommend this dealership. I drive over an hour for service and sales to come to this dealership like no other
Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
From the moment we walked in the dealership, our car
From the moment we walked in the dealership, our car purchase was a smooth and pleasant experience. This dealership is at the top of the game.
GMC Certified
2021 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Jeremy was perfectly kind and professional.
Jeremy was perfectly kind and professional. Had to wait many weeks for the parts to come in for the repairs to be done on my car . He was able to get me a loaner vehicle for so many weeks was truly a blessing. This dealership represents their commitment to the customer to experience great service 👍 Jeremy thanks 😊 I will be back
Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Great experience
I had a very complicated purchase and the Used Car sales Manager Larry helped me through it. I love my Jeep and they fixed everything I requested. I feel I was treated very fairly and will buy here again.
-
Prev - 1
- 2
-
Next
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 | $63,619 | 1 Good deal |
| 2025 GMC Sierra 1500 | $53,869 | 6 Great deals |
| 2024 GMC Sierra 1500 | $47,469 | 7 Good deals |
| 2023 GMC Sierra 1500 | $41,470 | 19 Good deals |
| 2022 GMC Sierra 1500 | $39,888 | 14 Good deals |
| 2020 GMC Sierra 1500 | $31,114 | 8 Good deals |
| 2019 GMC Sierra 1500 | $29,651 | 12 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 $35,484, with pricing starting at $14,400.
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.
Similar Cars
-
Chevrolet Silverado 1500 for sale
7 Great Deals out of 31 listings starting at $14,999
-
Ford F-150 for sale
4 Great Deals out of 34 listings starting at $21,999
Research the 2021 GMC Sierra 1500
Compare the 2021 GMC Sierra 1500
2021 GMC Sierra 1500 by city
-
2021 GMC Sierra 1500 in Mango, FL
9 Great Deals out of 29 listings starting at $21,499
-
2021 GMC Sierra 1500 in Dover, FL
5 Great Deals out of 22 listings starting at $21,499
-
2021 GMC Sierra 1500 in Thonotosassa, FL
9 Great Deals out of 29 listings starting at $21,499
-
2021 GMC Sierra 1500 in Brandon, FL
9 Great Deals out of 28 listings starting at $21,499
-
2021 GMC Sierra 1500 in East Lake-Orient Park, FL
8 Great Deals out of 25 listings starting at $21,499
-
2021 GMC Sierra 1500 in Valrico, FL
6 Great Deals out of 22 listings starting at $21,499
-
2021 GMC Sierra 1500 in Temple Terrace, FL
8 Great Deals out of 25 listings starting at $21,499
-
2021 GMC Sierra 1500 in Palm River-Clair Mel, FL
8 Great Deals out of 24 listings starting at $21,499
-
2021 GMC Sierra 1500 in Bloomingdale, FL
9 Great Deals out of 27 listings starting at $21,499
-
2021 GMC Sierra 1500 in Plant City, FL
5 Great Deals out of 22 listings starting at $21,499
-
2021 GMC Sierra 1500 in Progress Village, FL
8 Great Deals out of 23 listings starting at $21,499
-
2021 GMC Sierra 1500 in Tampa, FL
7 Great Deals out of 24 listings starting at $21,499
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.
