pretty bad
Typical Repair Cost:
No data
Average Mileage:
73,500 miles
Total Complaints:
8 complaints

Most Common Solutions:

  1. not sure (4 reports)
  2. replace engine (4 reports)
2015 Kia Optima engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2015 Kia Optima:

Unsubscribe any time. We don't sell/share your email.

2015 Kia Optima Owner Comments

problem #8

Mar 222024

Optima EX 2.4L

  • Automatic transmission
  • 86,558 miles


The car I have, 2015 Kia Optima, I purchased as certified pre-owned at 3 years old. It had about 36000 miles on it. It doesn't even have 90k miles on it and the engine has locked up. No check engine light, no other warning lights, and I maintenance it as scheduled/ suggested. I don't mess around with oil changes or maintenance. With the low miles and age of this vehicle, it SHOULD NOT have a locked-up engine. I am reading the warranty for the powertrain since Kia brags about their warranty of 10 years but if you read the fine print and you are NOT the original owner, you only get 5 years or 60k miles. Well, I haven't owned the car for 60k miles, but I can tell you, reading all of the other complaints about engine and the amount of time to get it resolved.

I WILL NEVER WASTE ANOTHER DOLLAR ON ANOTHER KIA FOR AS LONG AS I LIVE. I WILL TELL ANYONE WHO WILL LISTEN NOT TO WASTE THEIR MONEY ON A KIA ANYTHING. Even Chevys, Fords, Nissans, Hondas, Toyotas, Audis, etc last longer than this. Guess we will see what the crappy Kia dealership or Kia HQ says regarding any engine warranty. NEVER AGAIN!!

- Rm G., East Hanover, US

problem #7

Nov 132021

Optima EX 2.4L V4

  • Automatic transmission
  • 106,600 miles

First of all, my wife and I loved this car. It was a beautiful car, inside and out, and was extremely reliable up to this past Saturday evening. My wife was driving down the highway to a friend's house, doing about 75 mph. Coming up on her exit she sped up a bit to get around a slower car and as she was changing lanes the RPMs maxed out then dropped to zero, all of the warning lights came on the dash, and the car lost all power. She coasted to the side of the highway and partially down the exit ramp where it sat until I could get it towed home.

There was a burning smell that came from the engine so I just thought it was electrical until I pulled the oil dipstick out and saw that it was dry and appeared burnt. No warnings to "service engine" or anything prior. I had the oil changed almost like clock work. I had a mechanics shop pick up my car yesterday, he ran a diagnostics on it, and once it was determined that the engine was locked up he tried to turn the crank shaft by hand using a cheater bar and couldn't get it to budge.

The engine was completely seized up, "catastrophic failure". I was told that it would take 2 to 6 months to get a new motor and it would cost anywhere from $8,000 to $9,000 for a new motor plus, at least, $500 for the installation. I had 5 payments left on this car and it was just outside the 100,000 mile warranty but from what I've read so far the warranty would not have mattered.

- David K., Rowlett, TX, US

problem #6

Aug 212021

Optima LX

  • Automatic transmission
  • 102,500 miles

We bought this car new in 2015. It's been a great car until two weeks ago. Driving three hours away from home, the engine started sputtering and lights came on and it stopped running. We were able to pull over to the side of the road as this started. At that point the engine was done. Every light on the dashboard was on.

We had it towed to the dealer and were told that there was a recall that came out a few years ago. We never got a recall and had had it into the dealer since then, so...

The dealer is telling us that Kia will not cover this. They want $7k to replace the engine.

- Todd R., Salt Lake City, US

problem #5

Feb 192019

Optima 4S 4 cyl

  • Automatic transmission
  • 105,970 miles


Driving the car, car just stalled out while driving in traffic. I was literally stalled on a busy road during morning rush hour. Had car towed to the local AAA Repair Center and they said there was no oil in the engine although I get regular oil changes. The car was working fine, no engine or oil lights to alert that the oil pressure was low.

- Keisha O., Charlotte, NC, US

problem #4

Jan 092019

Optima LX 2.4L

  • Automatic transmission
  • 42,000 miles

I am being told that my car is not under a recall as previous years FOR THE EXACT SAME ISSUE!!!!

Car died when i was getting off highway! This year, 2015, needed to be included in the recall!!!I can not afford to replace the engine, I do not have copies of servoce record, I have only had the car for a year. It is currently at dealership!!!!

- Coleen O., West Palm Beach, FL, US

problem #3

Sep 162017

Optima 2.0L/2.4L

  • Automatic transmission
  • 33,000 miles

Driving car, stopped at traffic light, engine shut off, restarted, turned into Publix parking lot, engine shut off again and would not start again. Checked oil, was down 2 quarts. Never had any indication of oil being low, no engine lights came on, no noise from engine. I have had several cars and never had any engine to lock up on being just 2 quarts of oil down. I had the vehicle towed to dealership, they said they would not warranty the engine and would not replace unless I paid $8000, or $9000 dollars. I do not have that kind of money. I am having a salvage replace engine for $3800.00, at my expense. I still had 67,000 miles on drive train warranty, which the local Kia dealer would not even entertain the idea of replacing engine.

- flanative1944de, Haines City, US

problem #2

Apr 282017

Optima ES 2.4L

  • Automatic transmission
  • 89,117 miles

2015 Optima engine locked up. Wife pulled out of High school parking lot after dropping kids off accelerated to get into traffic and car reached 40 mph and light came on in dash car had shut down. she had to cost to side of road almost getting hit by traffic. Pulled into adjacent parking lot and went to restart car but nothing but a click. had car towed to mechanic where he said it was starter and changed started then called back and said engine was locked up needed new engine. Called Kia since under warranty and they want all records for service. Can only provide half because time it lube was bought out by Valvoline and changed computer system and records are gone for this year.

- Jim B., Bossier, US

problem #1

Oct 052015

Optima ES

  • Automatic transmission
  • 22,000 miles

This is a 2015 Kia Optima, it only has 22,000 miles on it The dealership states the engine has locked up and want to place the blame on us. I don't have $7000 to fix the engine. This did not happen until the car was taken in for an oil change and then the engine started knocking and then the car shut down in the middle of the street. We purchased a warranty on this car and now we can't use it because they are trying to blame us for the issue.

- Vickie T., Conyers, GA, US

Not what you are looking for?