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Used
2015 GMC Sierra 1500 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
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Setting up appointments for oil changes, etc.
Setting up appointments for oil changes, etc. very fast! Always seemed to get you in right away service department is always prompt and very friendly
This truck is the base model and that is exactly what we
This truck is the base model and that is exactly what we were looking for. A good solid truck without all the fancy technology. It drives like a dream, handles just as well and the interior is sleek and well designed. Perfect black on black exterior.... a man's truck.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Failed transmission and full replacement
We have owned our GMC Sierra 1500 for approximately 9 years now. The only real disappointment with the vehicle is that we had to have a full transmission replacement Just after the 100k mile without any warning whatsoever. The truck now has 107k miles on it and now , again out of nowhere, we are experiencing slipping in the trans and the engine light is now flashing. Very disappointing since we are starting to feel uncertain about the reliability of the vehicle now. The truck itself is gorgeous and shows ZERO signs of its age, sporting new rims and tires and a lifted body and no rust on the body at all. We hope there are no major issues with the engine as the vehicle has always been maintained as needed and on time for regular servicing at the dealership.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Nice GMC Sierra 1500 Denali.
I really like my nw, to me, 2015 GMC Sierra Denali. The salesman, Terrance Lin was very efficient, helpful and courteous. Thank you very much.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The salesman was very helpful and went out of the way to
The salesman was very helpful and went out of the way to help me on this deal. I greatly appreciate his help. I would buy another vehicle from this location and not hesitate to recommend people their way. Again I thank Luis and the people at this location. Keep up the good work!
141,000 SLT Still Going Strong
SLT with most options. Purchased at 127k. Currently have 141k after 17 months of ownership. The tranny that came with it was not original. I have had to replace ball joints, a/c condenser, brakes, wheels, radiator, a battery and a starter. Can't complain at this mileage. This is one of the quietest vehicles I have owned (that includes Audi A8's) and it's shod with Cooper Discover AT3's that chomp through snow like my Toro snow thrower. I also replaced the stock halogen bulbs with LED's and what a difference! The interior is comfortable, and I did replace the drivers seat bottom cushion. The nav system sucks, it's not very intuitive and it isn't very good at mapping the best route. Besides, I use my sedan for long trips. Phone integration is a breeze. Radio surprisingly decent. Everything works as it should. It's easy to pop the kayaks in the bed and the ebikes on a carrier and head out for the weekend. When moving stuff, I have the 80" bed so I can fit loads of stuff under the hard tonneau cover. The interior still has NO squeaks or rattles. Amazing. The heated seats are slow to heat, and the heated wheel is slow to warm up. But this thing is such a beast in the snow and rain I don't want to drive anything else! All in all a very reliable, well-built, and for the genre a good-looking vehicle. People tell me all the time what a nice looking truck I have. It's stock. Thanks, GMC.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Carrera location is amazing!
Carrera location is amazing! Great inventory - salesman are so friendly and knowledgeable and the finance department are very easy to work with! I highly recommend this location.
Great Truck
The Truck has been great since I got it. Great driving and comfortable interior. The truck will be used for our trips to Nebraska and Indiana.
Vehicle information
Features
Reviews
Diane is the best
My family has bought 22 cars and trucks from WESTSIDE GM and Diane Grant-Simenson over the last 30 years. Kudos to DIANE for her 30 years of selling our family so many vehicles!
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
did not visit dealer only talked on the phone after my
did not visit dealer only talked on the phone after my info on the internet adam called me and he was very informative. I do plan on going to the dealership soon
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The personnel I inner acted with was top notch.
The personnel I inner acted with was top notch. Accommodating was the priority in the effort to provide satisfactory results. All efforts to satisfy were made with friendly touches and yet keeping the sales pressure at minimum.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
We had a great experience working with Jared Rogers and
We had a great experience working with Jared Rogers and Mike Eden in the purchase of our new Dodge ram 2017. Jared was very good about explaining everything about the truck and going over everything with us. Thank you so much and we appreciate it and we would both. Billy Lewis
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Sold a 2018 Honda Civic 2 dr coupe on Friday, 11/14.
Sold a 2018 Honda Civic 2 dr coupe on Friday, 11/14. Alex was absolutely great. They purchased the automobile for exactly what they had quoted. We will never sell or purchase with any other dealership! They were fair and honest which is not true of many other dealerships. Would recommend whether buying or selling. Do not waste your time with anyone else.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Isiah, Arie, and the rest of the team did a great job
Isiah, Arie, and the rest of the team did a great job making our car buying/trade-in experience go as smoothly and quickly as possible. They even made sure our car was detailed and had a full tank of gas before we left the lot! Great communication from start to finish.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Vehicle information
Features
Reviews
The only place to buy a car.
From start to finish Planet Lincoln is a great place to buy a car. This is our second Lincoln purchased here and both times it was a great experience. No tricks or surprises, they do what they say and with friendly respect. Very comfortable showroom and facilities. I can't say enough good things about them. Thanks Planet Lincoln.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Very professional.
Very professional. A very good experience. Customer Service was outstanding. Would deal here again. Thank you for the great service. Love the truck!! It will be awesome to travel with!!!
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
The team was thorough and worked swiftly.
The team was thorough and worked swiftly. They were attentive to our concerns and the car was delivered as promised.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Completely Satisfied.
Let’s start off by saying I really believe in buying locally. I have had the most pleasant buying experience from Thompson motors. By far the most professional in Oneonta. They have late model used cars at very fair prices. From today going forward I will always purchase from them. I have purchased elsewhere before and now I know what I have been missing. They will tell you the truth and help you with your buying decision. There was none of this running back and forth to the sales manager for approval. If you deal straight with them they will deal straight with you. I am sure they have a car or truck for anyone.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I had a warranty replacement issue with my vehicle.
I had a warranty replacement issue with my vehicle. I got great support and they were able to get me in and out quickly. Very friendly service and was able to schedule on a saturday.
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
my experience with Smart Dodge
02/06/17 Thanks to your company I have a vehicle that I love. Matt McDaniel was very patient with me for hours trying to decide on my trade. I wanted a vehicle with lower payments than my 2012, and Matt did just what I asked. I now have a new Dodge Charger with lower payments and I love the drive. Thanks, Matt
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Real curtious and knowledgeable staff I would tell my
Real curtious and knowledgeable staff I would tell my friends and family about this car lot
Used
2015 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
I had reached out to check out a vehicle they had in
I had reached out to check out a vehicle they had in stock, and everyone there could not have been nicer, or easier to work with. Katie, Sam and Brian were very friendly, helpful and even though it wasn't the right car for my needs, they couldn't have been nicer.
GMC Sierra 1500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 1500 SLT | 18 Great deals | |
| 2025 GMC Sierra 1500 SLT | $45,213 | 460 Great deals |
| 2024 GMC Sierra 1500 SLT | $44,878 | 192 Great deals |
| 2023 GMC Sierra 1500 SLT | $44,068 | 69 Great deals |
| 2022 GMC Sierra 1500 SLT | $40,174 | 55 Great deals |
| 2021 GMC Sierra 1500 SLT | $35,337 | 135 Great deals |
| 2020 GMC Sierra 1500 SLT | $33,548 | 75 Great deals |
| 2019 GMC Sierra 1500 SLT | $32,023 | 28 Great deals |
| 2018 GMC Sierra 1500 SLT | $27,708 | 61 Great deals |
| 2017 GMC Sierra 1500 SLT | $24,418 | 54 Great deals |
About the 2015 GMC Sierra 1500 SLT
SLT shown.
- Seating
- 6
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 19
- Transmission
- 6-Speed A/T
- Engine
- 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
How much does the 2015 GMC Sierra 1500 SLT cost?
The 2015 GMC Sierra 1500 SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2015 Sierra 1500 SLT is $20,953, with pricing starting at $9,000.
What is the MPG of the 2015 GMC Sierra 1500 SLT?
The 2015 GMC Sierra 1500 SLT offers up to 16 MPG in city driving and 23 MPG on the highway for a combined rating of 19 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 options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2015 GMC Sierra 1500 SLT?
The 2015 GMC Sierra 1500 SLT compares to and/or competes against the following vehicles:
Is the 2015 GMC Sierra 1500 SLT reliable?
The 2015 GMC Sierra 1500 has an average reliability rating of 4.4 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2015 Sierra 1500 owners.
87% of drivers recommend this car
- Comfort
- 4.6
- Interior
- 4.7
- Performance
- 4.5
- Value
- 4.4
- Exterior
- 4.7
- Reliability
- 4.4
SLT (6 styles)
| Style | |||||
|---|---|---|---|---|---|
| 4WD Double Cab 143.5" SLT | 2WD Double Cab 143.5" SLT | 4WD Crew Cab 143.5" SLT | 2WD Crew Cab 153.0" SLT | 4WD Crew Cab 153.0" SLT | 2WD Crew Cab 143.5" SLT |
| Inventory price | |||||
| Starting at $44,500 | Starting at $41,250 | Starting at $46,860 | Starting at $44,010 | Starting at $47,160 | Starting at $43,710 |
| Combined MPG | |||||
| 18 | 19 | 18 | 19 | 18 | 19 |
| Engine | |||||
| 420.0-hp, 6.2-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) | 420.0-hp, 6.2-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) |
*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 1500 trims
-
GMC Sierra 1500 2015 SLE
14 Great Deals out of 130 listings starting at $6,950
-
GMC Sierra 1500 2015 Denali
5 Great Deals out of 56 listings starting at $11,850
-
GMC Sierra 1500 2015 Base
9 Great Deals out of 39 listings starting at $5,495
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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.