2018 Kia Optima Phev Other or unknown Problems
- Complaints
- 2about this part
- Share
- 25%of 8 total for the year
- Median mileage
- 18,800miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the other or unknown of the 2018 Kia Optima Phev, 25% of the 8 complaints for this model year. Where a mileage was given, the median is 18,800 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I leased a new #Kia #optima #phev from you in july of 2018. In july of 2020, the charging cable lodged in the car and it took 4 hours for roadside assistance to remove it. On december 2, 2020, I got a check engine light and made an appointment for service, but before I could bring it on dec 3, the check engine light became a turn engine off now light, and the car stopped dead in the middle of a busy highway with a wisp of smoke from under the hood, a dangerous situation. I had it towed to Kia of delray. It's still there, they haven't told me what's wrong. …”
NHTSA complaint #11384136, filed 2020-12, 18,600 miles“When I was driving on the highway on 2/14/2011 a check hybrid system warning came on, check engine light, triangle hev light, a red battery light came on and car lost engine power. After my vehicle slowed traffic down due to not having power I was barely able to pull over to the side of the road by coasting the car to the shoulder. It would not accelerate what so ever not even with just the engine power. When I pulled over the big check hybrid system warning dissapeared and only the check engine light and triangle hev light stayed on. I had my children in the car and almost caused an accident. …”
NHTSA complaint #11396321, filed 2021-02, 19,000 milesOther or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2018 | 2 | 25% |
| 2017 | 4 | 17% |
Other parts of the 2018 Kia Optima Phev
3 complaintsEngine
3 complaintsEngine cooling
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2018 Kia Optima Phev
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology