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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
My experience with Kirksville Motors has been exemplary.
My experience with Kirksville Motors has been exemplary. From the initial communication regarding my interest in the vehicle I ultimately purchased to the seamless sales process, every interaction was handled with professionalism and attention to detail. The staff provided a personalized experience, ensuring that all my needs were met. They maintained consistent follow-ups and facilitated maintenance checks and repairs efficiently. The dealership's transparency in terms of cost and service, alongside their comprehensive warranty coverage, was commendable. Additionally, they accommodated me with a quality loaner vehicle during the servicing of my car. Such a high level of honesty and service is rare in the industry, and I could not have envisioned a better experience.
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
Great experience with this dealership.
Great experience with this dealership. I will come back again as well as refer my friends and family to this dealership. Sales guy Dan was a big help!
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
Marc D is the Man!!
OMG!! I’m so in love with my new vehicle & Marc Darnell is absolutely the Best!! He worked & worked until I got the car & price that I wanted..(And trust me I gave him a Task!) And Mr. Chris topped it all off with a special holiday surprise 😆 I love it here!! Go see them!!
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.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Joe was awesome!
Joe was awesome! He kept me up to date and also informed me of the work that needed to be completed on my Camry. I won’t go anywhere else! I’m very satisfied with McGee
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...
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Very friendly and non-pressure environment.
Very friendly and non-pressure environment. Our salesman Van was very informative and helpful. I would return to him and the dealership for future purchases.
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.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Annie was wonderful and went out of her way to help us.
Annie was wonderful and went out of her way to help us. She was organized and the sale went very quickly
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
I was treated very well and explained everything.
I was treated very well and explained everything. the car I purchased was very clean and serviced.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
My daughter Kiyamma bought a Santa fe sport a few months
My daughter Kiyamma bought a Santa fe sport a few months ago and it has been great. I would like to thank you for her great experience.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
13 Silverado
Always Great service provided . I have bought 3 new vehicles for them .
Vehicle information
Features
Reviews
I have bought three cars from them easy to work with
I have bought three cars from them easy to work with there vehicles are always in top shape never had a problem with them at all Garrett took care of everything
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
they responded to my emails and sent additional pictures
they responded to my emails and sent additional pictures of the car as I requested.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Great experience.
Great experience. Good Team and treat you right. Would buy again for sure. Great experience. Good Team and treat you right. Would buy again for sure.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Great experience with Megan.
Great experience with Megan. She is an asset to the customer service experience. Great personality and thorough about how she handles clients and respectful of their time.
Vehicle information
Features
Reviews
Excellent overall experience!
Excellent overall experience! Brian did a fantastic job getting everything arranged. I highly recommend Mills
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Edgar and pablo were kind and helped out a lot pablo
Edgar and pablo were kind and helped out a lot pablo explaind every thing very clear
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Top level service and transparency .
Top level service and transparency . Great experience from first call until now…. And thanks again and again and to everyone involved who is in our team to make it a reality to be part and be involved and
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Great to work with!
Great to work with! Made the process easy from the phone process to the showroom and test drive was informative and hassle free. Best experience yet
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Derrick did a wonderful job helping me find my car, he
Derrick did a wonderful job helping me find my car, he was professional, knowledgeable, friendly. I would definitely recommend, and I personally would be willing to do business there again.
Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
I recently purchased a vehicle from this dealership and
I recently purchased a vehicle from this dealership and it was my 3rd vehicle. I couldn?t say enough good things about this dealership. The Staff was amazing and made my experience amazing. Super helpful along every step of the way. Would highly recommend them.
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GMC Sierra 2500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 2500 SLT | 2 Good deals | |
| 2025 GMC Sierra 2500 SLT | $69,022 | 8 Great deals |
| 2024 GMC Sierra 2500 SLT | $67,545 | 86 Good deals |
| 2023 GMC Sierra 2500 SLT | $53,047 | 10 Great deals |
| 2022 GMC Sierra 2500 SLT | $50,364 | 11 Great deals |
| 2021 GMC Sierra 2500 SLT | $47,178 | 7 Great deals |
| 2019 GMC Sierra 2500 SLT | $40,074 | 5 Great deals |
| 2018 GMC Sierra 2500 SLT | $39,861 | 8 Great deals |
| 2017 GMC Sierra 2500 SLT | $34,049 | 17 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 $42,884, with pricing starting at $25,495.
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
27 Great Deals out of 212 listings starting at $22,980
-
GMC Sierra 2500 2020 AT4
1 Great Deal out of 59 listings starting at $39,950
-
GMC Sierra 2500 2020 SLE
7 Great Deals out of 33 listings starting at $27,991
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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.
