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2018 KIA OPTIMA — Complaint #1895492

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NHTSA Complaint about ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS filed May 17, 2023

NHTSA complaint #1895492 (ODI reference 11522447) concerns a 2018 KIA OPTIMA and was filed on May 17, 2023. The owner reports the failure occurred on April 26, 2023. The vehicle had 70,000 miles on the odometer at the time of the incident. The report was geocoded to Pennsylvania based on the filer's self-reported location. The affected component is categorized as electrical system:ignition:coil:spark plugs, one of NHTSA's standardized taxonomy codes used to group defect patterns across make, model, and year.

The filer flagged the following severity indicators: crash: no, fire: no, injuries: 0, fatalities: 0. No crash, fire, or fatality was associated with this report, which places it in the early-warning stream rather than the priority-review stream. Because a VIN was supplied, this complaint is tied to a specific vehicle and not just a model-year cohort.

Individual complaints are consumer-submitted and unverified by NHTSA engineers — the agency's role at this stage is to collect, index, and make them searchable. What matters for federal action is the pattern: when many owners of the same KIA OPTIMA cohort independently describe similar electrical system:ignition:coil:spark plugs failures, defect investigators have grounds to open a PE and request manufacturer data. Related filings for the same vehicle and component appear below, and the detail page for the full 2018 KIA OPTIMA shows the complete component-level complaint distribution alongside any active investigations or recalls.

Vehicle
2018 KIA OPTIMA
Component
ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS
State
Pennsylvania
Mileage
70,000 mi

Complaint Description

The contact owns a 2018 Kia Optima. The contact stated that the vehicle was sputtering while being started. The contact stated that the vehicle also sputtered while driving at various speeds, and while reversing. The check engine warning light was illuminated. The vehicle was taken to the dealer and the contact was informed that oil was getting onto the spark plugs and ignition coils. The spark plugs and ignition coils were replaced; however, the failure persisted. The manufacturer was not made aware of the failure. The approximate failure mileage was 70,000.

Complaint Details

NHTSA Complaint ID 1895492
ODI Number 11522447
Date Filed May 17, 2023
Failure Date April 26, 2023
VIN 5XXGT4L37JG

Similar ELECTRICAL SYSTEM:IGNITION:COIL:SPARK PLUGS Complaints for 2018 KIA OPTIMA

Source: NHTSA Vehicle Complaints Database. Component taxonomy and severity codes are standardized by NHTSA Office of Defects Investigation.