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
2015 GMC Sierra 3500 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
2015 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
Best truck I have ever owned.
Best truck I have ever owned. Used to tow a heavy RV. Wonderful comfortable ride. Highly recommended this truck. I drive it as my primary vehicle.
Used
2015 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
Great experience!
Great experience! Fantastic dealership with a museum like feel. They took care of one minor problem I had with moisture in a headlight by replacing the headlight while I waited. Absolutely fantastic people, great service, quick paperwork turnaround.
well put together vehicle
The truck met all my expectations and more so far. the engine is powerful and the ride is smooth. the interior is great and so are the things this truck has.
Used
2015 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
Have purchased a lot of different cars at different
Have purchased a lot of different cars at different dealers and the three I delt with there were great. Best experence ever. Derek , Adam, and Grant treated us like royalty. Purchased a 2025 Teguan for my grand daughter 11/14/25 and went back 11/15/25 and bought one for my wife. No presure sales and two the point , no haggle sales. I have probably purchased over 50 vehicles in my 78 year history and this is like sales should be. First time volkwagen purchases.
Versatile and comfortable hauler
This SRW truck carries a slide-in truck camper and tows a boat when it's not a daily driver. The gas 6.0L is very capable to handle both and the truck is comfortable riding when not loaded down. Reliable engine and truck.
Used
2015 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
Walked in and greeted with a pretty rough area to do
Walked in and greeted with a pretty rough area to do business. A salesman met me and I told him the car I wanted to see. He went and got it. I took it for a drive came back and said I want it. He started working with me and like 3 other customers. Pretty unorganized. I was there from 1:00 to after 5:00. Overall Jerred Miehlke was nice and helpful. I left and drove 1 1/2 hour home and engine light came on. Jerred did say cars go through no checks. If they drive we sell them.be careful and check out the vehicle extensively. I do like the car good price just sharing the salesman was weird. I bought a brand new car in less than 30 minutes before so this was rough. Overall I think I did ok. Just be ready for a very long process. Come early if you live some distance away.
Great truck
This is a very clean, serviced and useable truck. I "live" in my truck and needed reliability, but without the garish price of new. All my tools fit and it is very handsome interior and exterior.
Vehicle information
Features
Reviews
Very nice but I can't buy it at this time,they were very
Very nice but I can't buy it at this time,they were very helpful ,thank you Jimmie Brinegar
Most reliable truck
Best truck ever, will buy another one if I can afford it. Gmc 3500 hd with long bed . Everything a man need
Vehicle information
Features
Used
2015 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
Great experience very easy to communicate with
My best experience ever purchasing a vehicle traded in and my new truck is excellent the staff is friendly and they do what they promised
Vehicle information
Features
Reviews
Awesome all around
Every department at Robertsons has knowledgeable employees that are extremely friendly and helpful. I have purchased multiple cars there and the process has been all around easy because of the employees. And the service department always gives updates if needed and has your vehicle done at the promised times
Used
2015 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
Great service great workers awesome job will recommend
Great service great workers awesome job will recommend someone here mich explained everything took his time to review stuff told me how to work things
Used
2015 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
Great Service Department
Service department staff was very friendly, attentive, listened to our concerns, fixed the problems in a timely manner, and kept us informed throughout the process. We would definitely recommend them to friends and family.
Used
2015 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
felt very comfortable with John and his advice and
felt very comfortable with John and his advice and experience were very much appreciated. He showed me a few trucks i was interested in so i could find something that would fit my needs the best. truly appreciate everyone that is there including those that just greeted me at the front desk. they truly made the experience enjoyable, which is something i rarely say when purchasing a vehicle. Aloha, Tani
There are 20 matching cars close to your year range.
Used
2016 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2017 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2013 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2014 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2013 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2013 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2017 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2016 GMC Sierra 3500 SLE
Vehicle information
Features
Vehicle information
Features
Vehicle information
Features
Used
2013 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2013 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2013 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2016 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2013 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2014 GMC Sierra 3500 SLE
Vehicle information
Features
Vehicle information
Features
Used
2013 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2017 GMC Sierra 3500 SLE
Vehicle information
Features
Used
2013 GMC Sierra 3500 SLE
Vehicle information
Features
-
Prev - 1
-
Next
GMC Sierra 3500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 3500 SLE | ||
| 2025 GMC Sierra 3500 SLE | $62,072 | 3 Good deals |
| 2024 GMC Sierra 3500 SLE | $56,573 | 7 Great deals |
| 2023 GMC Sierra 3500 SLE | $50,437 | 5 Great deals |
| 2022 GMC Sierra 3500 SLE | $46,761 | 9 Great deals |
About the 2015 GMC Sierra 3500 SLE
SLE shown.
- Seating
- 3
- Door count
- 2
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 0
- Transmission
- 6-Speed A/T
- Engine
- 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel)
How much does the 2015 GMC Sierra 3500 SLE cost?
The 2015 GMC Sierra 3500 SLE price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2015 Sierra 3500 SLE is $28,006, with pricing starting at $9,995.
What are some similar vehicles and competitors of the 2015 GMC Sierra 3500 SLE?
The 2015 GMC Sierra 3500 SLE compares to and/or competes against the following vehicles:
Is the 2015 GMC Sierra 3500 SLE reliable?
The 2015 GMC Sierra 3500 has an average reliability rating of 4.6 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2015 Sierra 3500 owners.
92% of drivers recommend this car
- Comfort 4.6
- Interior 4.8
- Performance 4.7
- Value 4.5
- Exterior 4.7
- Reliability 4.6
SLE (28 styles)
| Style | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2WD Reg Cab 162" WB, 83.58" CA SLE | 2WD Reg Cab 133.6" SLE | 2WD Reg Cab 133.6" SLE | 4WD Reg Cab 133.6" SLE | 4WD Reg Cab 133.6" SLE | 2WD Reg Cab 162" WB, 83.58" CA SLE | 4WD Reg Cab 137.5" WB, 59.06" CA SLE | 4WD Reg Cab 162" WB, 83.58" CA SLE | 2WD Reg Cab 137.5" WB, 59.06" CA SLE | 4WD Reg Cab 162" WB, 83.58" CA SLE | 2WD Reg Cab 137.5" WB, 59.06" CA SLE | 4WD Reg Cab 137.5" WB, 59.06" CA SLE | 4WD Double Cab 158.1" SLE | 2WD Double Cab 158.1" SLE | 4WD Double Cab 158.1" SLE | 2WD Double Cab 158.1" SLE | 4WD Crew Cab 153.7" SLE | 2WD Crew Cab 153.7" SLE | 2WD Crew Cab 171.5" WB, 59.06" CA SLE | 2WD Crew Cab 167.7" SLE | 2WD Crew Cab 167.7" SLE | 4WD Crew Cab 167.7" SLE | 4WD Crew Cab 171.5" WB, 59.06" CA SLE | 2WD Crew Cab 171.5" WB, 59.06" CA SLE | 4WD Crew Cab 167.7" SLE | 4WD Crew Cab 171.5" WB, 59.06" CA SLE | 2WD Crew Cab 153.7" SLE | 4WD Crew Cab 153.7" SLE |
| Inventory price | |||||||||||||||||||||||||||
| Starting at $35,705 | Starting at $38,970 | Starting at $36,780 | Starting at $42,100 | Starting at $39,910 | Starting at $37,495 | Starting at $40,455 | Starting at $38,835 | Starting at $35,535 | Starting at $40,625 | Starting at $37,325 | Starting at $38,665 | Starting at $45,970 | Starting at $42,720 | Starting at $43,980 | Starting at $40,730 | Starting at $47,475 | Starting at $44,365 | Starting at $40,525 | Starting at $44,560 | Starting at $42,570 | Starting at $47,670 | Starting at $43,635 | Starting at $42,115 | Starting at $45,680 | Starting at $45,225 | Starting at $42,375 | Starting at $45,485 |
| Combined MPG | |||||||||||||||||||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Engine | |||||||||||||||||||||||||||
| 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 322.0-hp, 6.0-liter, 8 Cylinder Engine (Gasoline Fuel) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) | 360.0-hp, 6.0-liter, 8 Cylinder Engine (Flex Fuel Capability) |
*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 3500 trims
-
GMC Sierra 3500 2015 Denali
2 Great Deals out of 40 listings starting at $23,500
- ${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.
