NHTSA Complaint #11706817 — 2018 KIA OPTIMA

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number 11706817
Vehicle 2018 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 CA

Consumer Description

My engine is under the Kia class action lawsuit for the KDS with the rod bearing clearance issues. I have done all my oil changes with paper work available. I got the update to the ECU several years ago as needed to be covered. Now my engine has failed and I took to the dealer to check but they said I didn't have a specific code and that they can't do any testing to verify it would be under the warranty. I called Kia Customer Care and have talked to them several times. They have told me there wasn't a need for the code and that the dealer could do other testing. The dealer stated that they can't do the BCT test due to a cylinder not having compression. I told Kia this is all related to the bearing going out and they said they can't do anything if the dealer said it's not under warranty. So I have now been going in circles with kia and dealer since 11/18/25. I sent kia another email on 12/15/25 and another on 12/18/25 due to not receiving a response. It's now 12/23/25 and still no response. They have a service bulletin that I seen online that was for dealers if any issues with testing they had other options but still nothing has been done.

Related Complaints for the 2018 KIA OPTIMA

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Recent Complaints for the 2018 KIA OPTIMA

#11710029 UNKNOWN OR OTHER It started with the oil. I constantly have to add oil. when it first started that’s what I was doing just adding oil....
#11709575 ELECTRICAL SYSTEM I turned the car off, it had difficulty turning back on and the brake pedal got really hard. I had to wait about 30-4...
#11709575 SERVICE BRAKES I turned the car off, it had difficulty turning back on and the brake pedal got really hard. I had to wait about 30-4...
#11709524 ELECTRICAL SYSTEM I was sold an unsafe vehicle at J and J Auto house 6446 Wilshire Bl LA,CA 90022. Dealer withheld condition of car . ...
#11709524 UNKNOWN OR OTHER I was sold an unsafe vehicle at J and J Auto house 6446 Wilshire Bl LA,CA 90022. Dealer withheld condition of car . ...
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