2014 Kia Optima power train problems
20 owner complaints filed with NHTSA name the power train on the 2014 Kia Optima — 3% of all complaints for this model year.
What owners report
“The engine failed after a prior engine replacement performed by the manufacturer. The failure caused the vehicle to become non-operational and created a risk of sudden loss of power and engine stalling while driving. The vehicle required towing and could not be safely driven. This is a repeat…”
filed Dec 28, 2025
“I was with my family on PA I-476. While traveling home in our 2014 Kia Optima the vehicle’s dash lights such as oil lamp, battery, etc popped on. As soon as I noticed the lights the vehicle had completely lost all drivability. Lights operable and possibly radio and accessories but I had to react so…”
filed Nov 8, 2023
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
TECHNICAL SERVICE BULLETIN: TRANSMISSION FLUID APPLICATION GUIDE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area…
TSB_TRA046_R5 · Service Bulletin/Repair Instructions · issued Apr 17, 2025This bulletin provides information relating to the correct transmission fluid type and fill quantity requirement for each Kia model. A flush is required ONLY when a transmission is replaced.
TSB_TRA046_R4 · Service Bulletin/Repair Instructions · issued May 16, 2024
Power Train problems in other Optima years
| Year | Reports | Share |
|---|---|---|
| 2020 Optima | 25 | 18% |
| 2019 Optima | 16 | 8% |
| 2018 Optima | 18 | 8% |
| 2017 Optima | 20 | 8% |
| 2016 Optima | 72 | 10% |
| 2015 Optima | 49 | 5% |
| 2013 Optima | 64 | 5% |
| 2012 Optima | 54 | 6% |
| 2011 Optima | 25 | 4% |
| 2010 Optima | 24 | 32% |
| 2009 Optima | 33 | 28% |
| 2008 Optima | 18 | 13% |
Other reported problem areas on the 2014 Kia Optima
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.