Engine complaints and recalls from NHTSA
Summary
The 2018 Kia optima has 96 NHTSA engine complaints and 0 engine-related recalls.
96
Complaints
0
Recalls
0
Injuries Reported
Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 9, 2026
| Date ↓ | Component | Summary |
|---|---|---|
| Dec 5, 2025 | ENGINE | While driving my 2018 Kia Optima S, the car suddenly jerked, lost power, and stalled in traffic. Mul... |
| Nov 26, 2025 | ENGINE | Car keeps stalling while driving |
| Nov 17, 2025 | ENGINE | My engine is under the Kia class action lawsuit for the KDS with the rod bearing clearance issues. I... |
| Oct 6, 2025 | ENGINE | I’ve had my car for 6 months and it constantly burns oil I’ve had 4 oil changes because it Is comple... |
| Sep 22, 2025 | ENGINE | Engine seized and stopped working. While I could not find any recall information based on the VIN, i... |
| Sep 17, 2025 | ENGINE | Car would convulse and shake very wildly metal parts spread around engine. It has very rough idle. 4... |
| Aug 18, 2025 | ENGINE | My 2018 Kia Optima has a cracked oil pan, which caused an excessive oil leak —up to 5 quarts in a ma... |
| Aug 18, 2025 | ENGINE | Car suddenly stopped working; it was struggling to stay on. Mechanic stated cylinder is not function... |
| Aug 2, 2025 | ENGINE | My 2018 Kia Optima went into limp mode while exiting the freeway. I had it scanned and received a P1... |
| Jul 15, 2025 | ENGINE | Kia is aware of the engine oil consumption causing misfires, failed emissions test, blowing a rod an... |
| Jul 1, 2025 | ENGINE | The 2.4L Theta II engine in my 2018 Kia Optima is failing, exhibiting excessive oil consumption, wit... |
| Jun 25, 2025 | ENGINE,FUEL/PROPULSION SYSTEM | My 2018 Kia Optima LX began using excessive oil (>3 quarts/1000 miles) just over 100K miles. I resea... |
| Jun 14, 2025 | ENGINE | Engine failed despite maintenance and repairs. The car is part of the active class action for Kia En... |
| Jun 12, 2025 | ENGINE | Subject: Urgent Request for Engine Replacement – 2018 Kia Optima Dear Kia Consumer Affairs, I am ... |
| May 25, 2025 | ENGINE | Got an oil change, and they advised that it was low on oil. (I had just replaced it recently) I took... |
| May 14, 2025 | ENGINE | This vehicle has an active recall: SC218 / DTC P1326 – ECU UPDATE / ENGINE REPAIR. I brought it to M... |
| May 12, 2025 | ENGINE | I am the current legal owner of a 2018 Kia Optima Hybrid (VIN: [XXX] ), which has an open safety rec... |
| May 10, 2025 | ENGINE | The engine of my 2018 Kia Optima is burning oil. When it started, I had 72,000 miles, and it's burni... |
| Apr 27, 2025 | ENGINE | Vehicle engine shut down without warning while driving on the interstate on April 27,2025. I had the... |
| Apr 9, 2025 | ENGINE | I was driving on the highway with my children and the engine started to knock and lock up. I had to ... |