One problem related to check engine light on has been reported for the 2009 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Kia Motor Optima based on all problems reported for the 2009 Optima.
The engine started knocking two months ago and yesterday the check engine light came on while driving on the highway resulting in the car shutting off with no warning.
| Engine And Engine Cooling problems | |
| Gas Recirculation Valve (egr Valve) problems | |
| Engine Oil Leaking problems | |
| Check Engine Light On problems | |
| Oil Pump problems |