NHTSA Complaint #11709712 — 2020 KIA OPTIMA

ENGINE issue reported to NHTSA

Check any vehicle history by VIN - Free vehicle history report

Complaint Details

ODI Number	11709712
Vehicle	2020 KIA OPTIMA
Component	ENGINE
Date of Incident	January 1, 2026
Date Filed	January 8, 2026
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	GA

Consumer Description

While driving, the vehicle experienced a sudden loss of engine power and entered limp mode. The check engine light began flashing and the vehicle had very limited acceleration, creating a safety concern when driving in traffic. The vehicle was towed to a Kia dealership for diagnosis. The dealer retrieved diagnostic trouble code P1326 (Knock Sensor Detection System – range/performance). During inspection, the dealer found metal contamination in the engine oil and oil control valves and advised that the engine has internal damage and requires replacement.

Related Complaints for the 2020 KIA OPTIMA

Other ENGINE Complaints

#11714482 — January 30, 2026 — The contact owns a 2020 Kia Optima. The contact stated that the vehicle was sputtering and vibrating abnormally while...

#11713970 — January 28, 2026 — I’ve been told by multiple Kia dealerships that my Kia needs a new engine however I am barely outside of their class ...

#11713294 — January 26, 2026 — I took my vehicle to the dealership in Chantilly, VA on May 17, 2025. On July 24, 2025, I discovered that my vehicle ...

#11713215 — January 25, 2026 — Engine has been burning oil for at least a year now. Cause ignition coil/spark plug failure and have replaced all 4 c...

#11706800 — December 23, 2025 — Took to Kia for engine burning excessive oil. They determined the cylinder wall was scorched due to piston ring. Th...

Recent Complaints for the 2020 KIA OPTIMA

#11715952 — AIR BAGS — February 5, 2026 — Stable track control failed to work, the driver seatbelt did not tighten & stayed loose, & air bags did not deploy up...

#11715952 — SEAT BELTS — February 5, 2026 — Stable track control failed to work, the driver seatbelt did not tighten & stayed loose, & air bags did not deploy up...

#11715952 — UNKNOWN OR OTHER — February 5, 2026 — 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 — January 30, 2026 — The contact owns a 2020 Kia Optima. The contact stated that the vehicle was sputtering and vibrating abnormally while...

#11713215 — UNKNOWN OR OTHER — January 25, 2026 — Engine has been burning oil for at least a year now. Cause ignition coil/spark plug failure and have replaced all 4 c...