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Used
2021 GMC Sierra 2500 SLE trucks
for sale
near me
- 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 2500 SLE
Vehicle information
Features
Reviews
Great everything was handle professional and with
Great everything was handle professional and with courtesy. They provided LYFT transportation to drop of and pick up of my truck. Jay is my service tech and he's always helpful
Beautiful truck
I love my 2021 GMC Denali 2500HD. I have gotten more complements on this truck than any other vehicle that I have owned. I get great highway fuel milage average 19-26mpg,which is great for a heavy duty truck!
Used
2021 GMC Sierra 2500 SLE
Vehicle information
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Reviews
Purchased a used 2022 Super Duty at Kendall Ford Eugene.
Purchased a used 2022 Super Duty at Kendall Ford Eugene. Great experience! My salesperson Jeff was exceptional to work with and made me feel comfortable the entire time.
Best truck I ever owned
Love my GMC. Owned a Chevy and this absolutely beats it hands down. Never had any issues. Inside is very comfortable and can't imagine driving anything else
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
The Parts Dept at Auto Park, Bremen is excellent in my
The Parts Dept at Auto Park, Bremen is excellent in my opinion. I went in on Sat morning around 10am. I needed an ignition lock cylinder for my Ford Escape. I was lucky enough to be taken care of by Nick Shepherd, Parts Mgr. Nick had the part & told me he would not release it until he put it together correctly. He installed the tumblers & pins, glad I didn't have to do it. Nick & Jarred Zeisig are a great team!
GMC 2500 HD AT4
This is the first diesel I have owned. The power is amazing and I really like the room inside the cab. This truck is a beast... Love it!
Used
2021 GMC Sierra 2500 SLE
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Reviews
Recall Service Review
My recall service appointment on 9/7/23 was reschedule by Jason Jackson. The reason was the tech going to be out for my original appointment which was 9/8/23. Jason Jackson service consultant at Suburban took care of me very well, I also ask him can we do the works package for an oil change with tire rotation. He said sure we can fit that in with your recall. Jason customer service is always on point and over the top.
Never had one. Always wanted one and love it.
I love my Denali. Beautiful truck inside out. When I drive down the road all heads turn. I couldn't have made a better choice. That's Cortez for you good service.
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Had a great experience leasing out our first car ever.
Had a great experience leasing out our first car ever. Cody was really helpful throughout the process. He made sure we understood the whole process very easily. The finance guys were great too as they helped us by making sure we don’t miss out on any offers/deals. Would 100% recommend this place to everyone, especially first time buyers. Everyone is super friendly and helpful.
Early to tell truck has less than 100 miles
Truck was bought specifically to our travel trailer. We have to wait for 1000 break in before we can tow the trailer. So far the truck is very quiet, smooth running, & comfortable to drive. We were pleasantly surprised at how much interior storage space is available. Having the bed steps before rear tires and in the bumper sides is very nice. Bed rails are even with my shoulders so the steps get used a lot.
Used
2021 GMC Sierra 2500 SLE
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Features
Reviews
I recently purchased a car from Rydell Chevrolet in
I recently purchased a car from Rydell Chevrolet in Northridge CA. Vig Ashok was my salesperson. Prior to me making the 100 mile drive to the dealership, Vig had sent me a personalized video of the car. I drove up there and met Vig and took a test drive and purchased the car. The transaction, was quick and easy. Great friendly knowledgeable staff at Rydell Chevrolet, I highly recommend them. Do yourself a favor and go see Vig Ashok at Rydell Chevrolet!
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Cars are clean and prices are fair.
Cars are clean and prices are fair. Purchased a nice 2011 Ranger at better than market price. No issues. I would buy another vehicle from Frontier if and when I needed it.
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
The "Product Specialist" (AKA Sales person), Larry
The "Product Specialist" (AKA Sales person), Larry Hendrie was great! He carefully walked me through the process of what was needed to secure the Used vehicle I wanted to purchase that I found via the internet. I drove 200+ miles to get it! He was very accommodating assisting me with completing my navigation plans that allowed me to travel to NY to purchase the car. Larry was also very attentive sending me a reminder about our upcoming appointment and also called later in the day to be sure I made it home safely with no concerns about the vehicle. Great sales person. Thank you!!
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Very good overall experience with Candy Cars and Oz was
Very good overall experience with Candy Cars and Oz was really great and a pleasure to work with, I highly recommend Oz and Candy Cars to everyone I received excellent service and everything
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
I met with Andrew Kim and what a knowledgeable
I met with Andrew Kim and what a knowledgeable salespeople! I will definitely call on Andrew when it's time for me to purchase again!
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
I went to look at an '06 Miata I'd seen on line.
I went to look at an '06 Miata I'd seen on line. They had 2. They worked with me on getting the one I wanted with the wheels off the other one. Excellent! They helped me with financing. I drove away with a car I've always wanted. Randy was very helpful and never pushy at all. Very friendly and professional. I would definitely recommend Parkway Auto
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
I recently had an exceptional car shopping experience at
I recently had an exceptional car shopping experience at Auto Boutique. From the moment I walked through the door, the staff was incredibly responsive, addressing all my queries with patience and professionalism. They were genuinely helpful, guiding me through the process without any pressure, ensuring I felt informed about my choices. The politeness of everyone at Auto Boutique was particularly noteworthy; they made me feel valued and respected throughout my visit. I have not yet found a car that perfectly matched my needs but left with a positive impression of what customer service should be. Highly recommended for anyone looking for a smooth and pleasant car buying journey.
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Vehicle information
Features
Reviews
We recently purchased a used Jeep Wagoneer from Heller
We recently purchased a used Jeep Wagoneer from Heller Ford in El Paso, IL, and the entire experience was nothing short of fantastic. Huge shoutout to our salesperson Onie Maisonneuve, who went above and beyond from start to finish. We live about an hour and a half away, but Onie made the process incredibly easy by handling everything over the phone ahead of time. By the time we arrived, all that was left was a quick test drive and a bit of paperwork—start to finish, we were in and out of the dealership in around 30 minutes! A couple of days after taking the vehicle home, a mechanical issue popped up. Onie was immediately responsive and had a loaner vehicle arranged and delivered to us the very next day. The service department didn’t miss a beat either—they had the necessary repairs completed quickly and efficiently, making sure we had our Wagoneer back just in time for a planned family vacation. I can’t recommend Heller Ford highly enough. If you’re looking for a dealership that truly stands behind their vehicles and values customer service, look no further. Ask for Onie—he’s the real deal!
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Absolutely the quickest and most stress-free vehicle
Absolutely the quickest and most stress-free vehicle purchase I have ever made! Everything went smoothly and the deal was processed as promised. Our salesperson, a young man named C.J., was knowledgeable and easily surpassed the service I’ve received at BMW, Mercedes-Benz, and other quality dealerships. He is an honest, no-nonsense, no pressure, type of guy and a great representation for Troncalli. I can’t say enough about this young man and the pleasant experience we had while purchasing our new car. Kudos to his parents who definitely raised him well. Wish I could give him more than 5 stars! The whole team was friendly and welcoming. I definitely recommend and will undoubtedly return when we are in the market again for a vehicle. I wouldn’t be at all surprised if CJ is promoted to manager by then.
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
They dealer is so friendly and our sales person Daniel
They dealer is so friendly and our sales person Daniel Raboin was great highly recommend
Certified
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Madison was very helpful and very consistent in her
Madison was very helpful and very consistent in her efforts and checking on my current interest. She is a very good sales person.
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Haley helped me find a great Deal on a new Buick.
Haley helped me find a great Deal on a new Buick. No add on sales pressure, handled getting paperwork ready, signed and drove out in less than 45 minutes. Also pleased at no hidden costs added like other dealers do, after the negotiated price. Price, Selection, Service, all great at Medina Buick GMC Cadillac.
Used
2021 GMC Sierra 2500 SLE
Vehicle information
Features
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GMC Sierra 2500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 2500 SLE | 1 Good deal | |
| 2025 GMC Sierra 2500 SLE | $58,076 | 14 Great deals |
| 2024 GMC Sierra 2500 SLE | $52,541 | 17 Great deals |
| 2023 GMC Sierra 2500 SLE | $47,553 | 9 Great deals |
| 2022 GMC Sierra 2500 SLE | $41,295 | 25 Great deals |
| 2020 GMC Sierra 2500 SLE | $37,995 | 6 Great deals |
| 2017 GMC Sierra 2500 SLE | $27,622 | 14 Good deals |
About the 2021 GMC Sierra 2500 SLE
SLE shown.
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 0
- Transmission
- 6-Speed A/T
- Engine
- 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
How much does the 2021 GMC Sierra 2500 SLE cost?
The 2021 GMC Sierra 2500 SLE price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 2500 SLE is $41,764, with pricing starting at $32,905.
What are some similar vehicles and competitors of the 2021 GMC Sierra 2500 SLE?
The 2021 GMC Sierra 2500 SLE compares to and/or competes against the following vehicles:
Is the 2021 GMC Sierra 2500 SLE reliable?
The 2021 GMC Sierra 2500 has an average reliability rating of 4 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 2500 owners.
75% of drivers recommend this car
- Comfort 4.7
- Interior 4.6
- Performance 4.3
- Value 3.9
- Exterior 4.6
- Reliability 4.0
SLE (10 styles)
| Style | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2WD Crew Cab 172" SLE | 4WD Crew Cab 159" SLE | 2WD Crew Cab 159" SLE | 4WD Crew Cab 172" SLE | 2WD Double Cab 162" SLE | 2WD Double Cab 149" SLE | 4WD Double Cab 149" SLE | 4WD Double Cab 162" SLE | 4WD Reg Cab 142" SLE | 2WD Reg Cab 142" SLE |
| Inventory price | |||||||||
| Starting at $45,600 | Starting at $48,200 | Starting at $45,400 | Starting at $48,400 | Starting at $43,800 | Starting at $43,600 | Starting at $46,400 | Starting at $46,600 | Starting at $44,400 | Starting at $41,600 |
| Combined MPG | |||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Engine | |||||||||
| 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel 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.
GMC Sierra 2500 trims
-
GMC Sierra 2500 2021 Denali
16 Great Deals out of 186 listings starting at $31,600
-
GMC Sierra 2500 2021 AT4
6 Great Deals out of 98 listings starting at $39,995
-
GMC Sierra 2500 2021 Base
9 Great Deals out of 41 listings starting at $23,797
-
GMC Sierra 2500 2021 SLT
5 Great Deals out of 39 listings starting at $32,987
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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.
