hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
74,753 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 Kia Sorento engine problems

engine problem

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2015 Kia Sorento Owner Comments

problem #8

Dec 112016


  • 350,000 miles


Leased a 2015 Kia sorrento, in my third year of lease, regular oil changes every 3 months, heard a knocking sound in engine at approx. 35,000 miles on my way home from my son's hockey game on the highway which got louder and louder. Took it to the Kia dealer and immediately the sales person informed me that it was the connector rod failure without even working on the car. Showed Kia all my receipts for oil changes, waited two weeks to hear back from them, finally I called and they offered to pay for engine but I would be on the hook for 1200 on labor. Not sure why I am on the hook for labor on a faulty engine. They claimed there was sludge in the engine. Looked online and saw a recall for optima engine connecting rod for Kia in which they are extending their warranty from 100,000 miles to 120,000 miles because of the same connecting rod problem. So they know they have an issue with this part but still wants me to pay for some of the cost. I don't have 1200 to pay for the repair, its now going on 3 weeks without the vehicle while they review my claim, no rental vehicle, and I am expected to pay on a lease of a vehicle I don't have. Vehicle is still in repair shop.

- Grand Island, NY, USA

problem #7

Oct 092016


  • 62,000 miles
The contact owns a 2015 Kia Sorento. While driving 45 mph, the vehicle stalled without any warning lights illuminated. The vehicle was towed to a dealer where it was diagnosed that the engine needed to be replaced due to low oil maintenance. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 62,000.

- Canton, GA, USA

problem #6

Oct 202016


  • 27,000 miles
While driving approximately 50mph in my sorrento the car hesitated and stalled when I pressed the gas to pass a car next to me. Ithe felt like a slip. I wasn't sure what to make of it, but over the next 4 days it started happening more frequently. I went to turn it on the 4th morning and a cloud of white smoke came out of my tailpipe. I decided it needed to go to Kia immediately. My sorrento is a 2015 with 27xxx miles on it. This is not what I expected from a new car. I brought it to Kia and was called 10 minutes after I received my courtesy ride back. I was told a diagnosis was sludge and they needed maintenence records. I brought my receipts (which I had to have my mechanic type back out as I hadn't saved any reciepts). When we brought those in I had a spare key to my car and noticed it was in the parking lot. I checked under the hood only to discover they hadn't even pulled the valve cover on the car (I know this because there was a dead wasp frozen to the top of the bolt you need to take off to remove the cover that was there when I brought it in). They informed me that they opened the cap and that's how they knew even though initially on the phone they said they pulled the valve cover. They took my service papers and called me the next day to say Kia won't cover it and rejected my records. My mechanic is a licensed mechanic. No reason given for the rejection. They say we will be responsible for engine replacement but still can't give us a diagnosis other than "sludge". so much for their "best warranty in the business".

- Cape Coral, FL, USA

problem #5

Jun 252016


  • 70,000 miles


The contact owns a 2015 Kia Sorento. While driving approximately 40 mph, the vehicle suddenly jerked and stalled. There were no warning indicators illuminated. The vehicle failed to restart and had to be towed to the nearest dealer. It was diagnosed that sludge was present in the oil reservoir, which caused the engine to shut down. The vehicle had to be towed back to the state of residence and the dealer diagnosed that improper oil changes were performed. The engine had to be replaced. The manufacturer was notified of the failure. The approximate failure mileage was 70,000.

- Powder Springs, GA, USA

problem #4

Apr 122015


  • 25 miles
The SUV has been having white smoke coming from tailpipe and the car has been pulling. It makes ugly noise when we try to accelerate on the freeway and pulls. The oil light isn't coming on to tell us when the oil is low even if it's not time for a pil change. We seem to notice that the car is burning oil more frequently than a normal vehicle. Also notice sludge when we check the oil even if we had just had a oil change it seems to come back. The dealer keeps telling me there is nothing wrong with it. They tell me they can't find anything wrong.

- Santa Ana, CA, USA

problem #3

Jul 012016


  • 40,000 miles
I was driving down the road with my 4 children in the car at 45 mph when all of a sudden my car completely lost power. Luckily I was able to coast to the side of the road. It was over a 100 degrees outside and my 4 kids under 6 had to sit and wait on a ride in the heat. The car has 40,000 miles on it and has had 7 oil changes, of which I have provided the receipts for. There is engine sludge despite the fact that the oil was changed more frequently than the manual suggested 7500 miles,

- Choctaw, OK, USA

problem #2

May 072015


  • 35,000 miles
Had oil light go on when I would take off from a stop but would turn off when I stop. I called the dealer and took it in and was told that the oil filter was put in wrong. The dealer put a new one on and did all the test to make sure it was working proper. Nine day later I had a oil leak and called the same dealer and was told to come back in. The service manager then told me the because someone else had done other oil changes on the car I would have to pay for any repairs if the other place would not. When I asked about the part being under warranty the service manager told me that this part was not under warranty. The service also told me that even if the dealer did the oil change after the first one that Kia would not warranty it. So now I will get a bill over 900 dollars and still not know if I have a engine that will work.

- Morris, IL, USA

problem #1

Oct 232014


  • 14,000 miles
I purchased a new 2015 Kia Sorento May 17, 2014. As I was driving down the road last night at approximately 45mph, suddenly the car jerked around, sounded like I downshifted (although it's an automatic) and I got the diagnostic message of the "engine control system- possible engine condition" it told me to take it to the dealership for service immediately. They said today that they had to order a new throttle body assembly and it was too dangerous for me to drive. Not sure if anyone else has had these problems yet but it shouldn't be happening in a brand new car!

- Iva, SC, USA

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