NHTSA Complaint #11647773 — 2020 KIA OPTIMA

ENGINE issue reported to NHTSA

Check any vehicle history by VIN - Free vehicle history report

Complaint Details

ODI Number 11647773
Vehicle 2020 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

I am filing this complaint due to severe and ongoing safety defects in my 2020 Kia Optima EX, which has repeatedly stalled while driving, creating a life-threatening road hazard. Since September 2024, my vehicle has suffered from major failures, including a complete transmission replacement, multiple high-pressure fuel pump replacements, multiple oil flushes due to fuel contamination, and all fuel injectors replaced. Despite all of these “repairs” performed by a Kia-authorized dealership, the check engine light continues to return, and the vehicle still stalls unexpectedly, making it dangerous to drive. On March 10, 2025, after Kia claimed to have tested the vehicle for 200 miles, I picked up the car from the dealership, only for it to stall and trigger the check engine light within hours before I even reached my destination. This vehicle has been returned to me multiple times in an unsafe condition. Additionally, an independent mechanic discovered an engine oil leak and a torn axle that Kia’s dealership never disclosed. This raises major concerns about their lack of proper inspection and repair procedures. This is a serious safety issue that Kia refuses to take accountability for. I request an immediate investigation into this matter before this defect leads to an accident.

Related Complaints for the 2020 KIA OPTIMA

Other ENGINE Complaints

#11714482 The contact owns a 2020 Kia Optima. The contact stated that the vehicle was sputtering and vibrating abnormally while...
#11713970 I’ve been told by multiple Kia dealerships that my Kia needs a new engine however I am barely outside of their class ...
#11713294 I took my vehicle to the dealership in Chantilly, VA on May 17, 2025. On July 24, 2025, I discovered that my vehicle ...
#11713215 Engine has been burning oil for at least a year now. Cause ignition coil/spark plug failure and have replaced all 4 c...
#11709712 While driving, the vehicle experienced a sudden loss of engine power and entered limp mode. The check engine light be...

Recent Complaints for the 2020 KIA OPTIMA

#11715952 AIR BAGS Stable track control failed to work, the driver seatbelt did not tighten & stayed loose, & air bags did not deploy up...
#11715952 SEAT BELTS Stable track control failed to work, the driver seatbelt did not tighten & stayed loose, & air bags did not deploy up...
#11715952 UNKNOWN OR OTHER Stable track control failed to work, the driver seatbelt did not tighten & stayed loose, & air bags did not deploy up...
#11714482 ENGINE AND ENGINE COOLING The contact owns a 2020 Kia Optima. The contact stated that the vehicle was sputtering and vibrating abnormally while...
#11713215 UNKNOWN OR OTHER Engine has been burning oil for at least a year now. Cause ignition coil/spark plug failure and have replaced all 4 c...
Check any vehicle history by VIN - Free vehicle history report