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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
2020 GMC Sierra 2500 SLT 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
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Professional and polite was greeted upfront from the
Professional and polite was greeted upfront from the beginning. Work was done quick. Great job
2020 GMC 2500 AT4
This truck is the truck that all others should look up to. It rides great, will tow a house, runs smooth, and gets great fuel economy. The Allison transmission is so smooth. The AT4 looks great too.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Best truck I've owned yet
What a gorgeous truck, runs good, sounds good and has all of the amenities I need although I am looking forward to their next interior upgrade.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Great Experience.
Great Experience. I appreciate that they gave me several options and worked with me to find what works.
Most convenient options on any vehicle I've owned.
Great power and yet great economy. Love the safety features with the cameras and side vehicle warning. Camera that shows side of vehicle, including trailer when turn signal is on is great. Also appreciate the bed camera for hooking up gooseneck trailer.
GMC Certified
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Phenomenal performance increase after the recall/update
Phenomenal performance increase after the recall/update to the software. very friendly and very kind staff. I?ve been to Galles Chevrolet dozens and dozens of times it never disappoints.
This is your Truck
When looking at price point vise equipment, This is your truck. I looked at every 2500/3500 on the market, same vehicle equipment and price. I chose the Duramax.. HP, Torque of this Diesel, truck equipment that the SLT price point had everything that I wanted for safety, appearance and comfort, none other came close. This is your truck...
GMC Certified
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Getting an appointment was easy and times offered were
Getting an appointment was easy and times offered were convenient. My car was taken in promptly and finished when promised. My Advisor was efficient and friendly, with updates during the process and advising me when my car was ready to pick up. Very pleased, I will be back.
So far have loved my 2020 2500 HD 4x4 diesel
I have owned my truck for a month and two weeks. Two weeks after owning it my power steering went out for about 25 miles then was OK again. Last week the check engine light went on and after about 25 miles it turned off and it was OK a week ago I entered my truck to start off for the day and everything was dead absolutely had no sign of life. The dealership has now had it for exactly a week and they cannot figure out what’s going on. They say they’re having problems receiving communicating. I sure hope I will continue to love my truck. It drives like a dream and pulls like an ox.
GMC Certified
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Greg Lair go my vehicle fixed and it runs great!
Greg Lair go my vehicle fixed and it runs great! Terry kept me updated on my issues with my vehicle and how long it would take to repair it.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Quick response and easy to work with
John was great to work with and no high pressure sales tactics. Went on a nice test drive and I personally loved the vehicle but my wife was set on another color. I will definitely be back when it comes time to upgrade my truck!
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Best people, best experience
These are some of the most amazing humans to work with. Not only did they help get us a van that fit what we needed perfectly but they also treated our 3 year old so kindly, and never once got upset about a tired little human running around their shop! They also helped after the sell with some issues that came up and never hesitated to help and be kind. If you need a vehicle this is the place to go!!
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Awesome service/repair department
My Suburban broke down, they were efficient and helpful in getting my vehicle repaired. Allan was great and I would definitely recommend this dealership to others.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
We found a vehicle in an ad and went to see what kind of
We found a vehicle in an ad and went to see what kind of deal we could make. Truly this place is loaded with caring professionals. They offer great deals and are upfront with the out the door costs.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
New Car
Great! Nick Atkinson met me at the entrance and immediately was of help to me. I knew what I was looking for and repointed out the right car. He was good at going through the whole car and showed me what I needed to know. He was very helpful with the whole process.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Great group to work with.
Great group to work with. Everything was straight forward with no hidden fees. Definitely recommend seeing the folks at Steve Schmitt for your next purchase. Ask for Brandon Fisher.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Love my Sierra AT4, the team there was great!
Love my Sierra AT4, the team there was great! 5 stars! Only wish is, that I would have done this sooner.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Although we didn't purchase a car this visit, the
Although we didn't purchase a car this visit, the dealership was transparent, friendly, supportive and has earned my respect. Should our situation change we will certainly return and give them our business!
Vehicle information
Features
Reviews
Fantastic dealer! Easy to work with.
RP Motors and Ryan are awesome to work with. Honest and up-front dealer, that makes the car buying and selling process simple and easy, with no issues. Great pricing and does not overcharge like many dealers.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
The sales person was great!
The sales person was great! Knowledgeable and friendly. The finance manager was pushy and did not listen to my needs. That was unfortunate after a great experience to that point.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
We bought our new Acadia from Mike Rancharran at Gurnee
We bought our new Acadia from Mike Rancharran at Gurnee GMC, if you are looking to buy a car ask for Mike, he will do what he needs to do to get you a great car at a great price. What’s nice about the dealership is you deal with one person not 3 or 4, they are not pushy and if they don’t have what you are looking for they try to find the car you want. Thanks Mike !!
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Shawn did a great job working with us to get us the terms
Shawn did a great job working with us to get us the terms we wanted.
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GMC Sierra 2500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 2500 SLT | $75,771 | |
| 2025 GMC Sierra 2500 SLT | $73,566 | 10 Great deals |
| 2024 GMC Sierra 2500 SLT | $64,230 | 11 Great deals |
| 2023 GMC Sierra 2500 SLT | $55,264 | 29 Good deals |
| 2022 GMC Sierra 2500 SLT | $52,337 | 6 Great deals |
| 2021 GMC Sierra 2500 SLT | $47,558 | 6 Great deals |
| 2019 GMC Sierra 2500 SLT | $41,982 | 9 Great deals |
| 2018 GMC Sierra 2500 SLT | $39,636 | 6 Great deals |
| 2017 GMC Sierra 2500 SLT | $34,785 | 15 Good deals |
About the 2020 GMC Sierra 2500 SLT
SLT shown.
- Seating
- 5
- Door count
- 4
- 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 2020 GMC Sierra 2500 SLT cost?
The 2020 GMC Sierra 2500 SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 2500 SLT is $46,708, with pricing starting at $33,991.
What are some similar vehicles and competitors of the 2020 GMC Sierra 2500 SLT?
The 2020 GMC Sierra 2500 SLT compares to and/or competes against the following vehicles:
Is the 2020 GMC Sierra 2500 SLT reliable?
The 2020 GMC Sierra 2500 has an average reliability rating of 4.7 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 2500 owners.
91% of drivers recommend this car
- Comfort 4.9
- Interior 4.9
- Performance 4.8
- Value 4.5
- Exterior 4.9
- Reliability 4.7
SLT (8 styles)
| Style | |||||||
|---|---|---|---|---|---|---|---|
| 2WD Double Cab 149" SLT | 4WD Double Cab 149" SLT | 4WD Crew Cab 172" SLT | 4WD Double Cab 162" SLT | 2WD Crew Cab 172" SLT | 2WD Double Cab 162" SLT | 2WD Crew Cab 159" SLT | 4WD Crew Cab 159" SLT |
| Inventory price | |||||||
| Starting at $51,000 | Starting at $53,800 | Starting at $55,800 | Starting at $54,000 | Starting at $53,000 | Starting at $51,200 | Starting at $52,800 | Starting at $55,600 |
| Combined MPG | |||||||
| 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) |
*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 2020 Denali
15 Great Deals out of 185 listings starting at $38,941
-
GMC Sierra 2500 2020 AT4
4 Great Deals out of 91 listings starting at $36,981
-
GMC Sierra 2500 2020 Base
7 Great Deals out of 24 listings starting at $19,491
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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.
