NHTSA Complaint #11497491 — 2015 KIA OPTIMA
ENGINE issue reported to NHTSA
Complaint Details
| ODI Number | 11497491 |
| Vehicle | 2015 KIA OPTIMA |
| Component | ENGINE |
| Date of Incident | |
| Date Filed | |
| Mileage | N/A miles |
| Crash | No |
| Fire | No |
| Injuries | 0 |
| Deaths | 0 |
| Vehicle Towed | No |
| State | NC |
Consumer Description
My vehicle engine blew while driving on the highway going about 65 no warning or signs other then the amount of oil that it was consuming. I am just now hearing about the class action lawsuits for my specific engine the Theta 2.0 which I have already verified it is part of it. KIA is saying it's the wrong part of the engine that is blown that it want be qualify for the engine replacement. I have kept my oil changed regularly and just recently noticed it started to consume godly amounts of oil no leak, or smell it was literally disappearing it is not normal to add almost 4qts of oil every 2 weeks or so. These engines need to be recalled not placed on a "service bulletin" and they pick and choose which to fix. Point is they are ticking time bombs and something need to be done they will not back their products and us consumers are left to suffer.
Related Complaints for the 2015 KIA OPTIMA
Other ENGINE Complaints
#11719695
Engine failure while driving on freeway. Almost hit by semi truck. Towed to Dealership. Engine check light flashing c...
#11719754
Engine seized and won’t turn at all
#11717931
On December 27, 2025, at approximately 150,556 miles, my 2015 Kia Optima Hybrid experienced sudden engine knocking, p...
#11716870
Valve cover leaking and oil dripping oil on exhaust at 114k miles. Risk of engine fire.
#11714265
The contact owns a 2015 Kia Optima. The contact stated that while driving at an undisclosed speed, the engine seized,...
Recent Complaints for the 2015 KIA OPTIMA
#11718562
UNKNOWN OR OTHER
Paint is peeling off all over my car. I see this is a known issue with the white paint and nothing is being done abou...
#11717931
POWER TRAIN
On December 27, 2025, at approximately 150,556 miles, my 2015 Kia Optima Hybrid experienced sudden engine knocking, p...
#11717265
FUEL SYSTEM, GASOLINE
The contact owns a 2015 Kia Optima. The contact stated that while attempting to start the vehicle or while driving at...
#11715114
STRUCTURE
The contact owns a 2015 Kia Optima. The contact stated that while driving at various speeds, the driver's side and pa...
#11713230
ELECTRICAL SYSTEM
Yesterday, [XXX], My 2015 kia optima engines reved up wothout me pushing the gas & within seconds later a loud noise ...