One problem related to transmission failure has been reported for the 2018 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Kia Motor Optima based on all problems reported for the 2018 Optima.
Transmission failed after 4 months and 3800 miles while driving st local streets, kia dealers refused to repair under warranty.
| Power Train problems | |
| Transmission Failure problems | |
| Vehicle Shudder problems |