2019 Kia Optima Engine cooling Problems
- Complaints
- 3about this part
- Share
- 1%of 212 total for the year
- Median mileage
- 112,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2019 Kia Optima, 1% of the 212 complaints for this model year. Where a mileage was given, the median is 112,000 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.
“The contact owns a 2019 Kia Optima. The contact stated that while the vehicle was parked, there was sputtering sound coming from the engine compartment, with the check engine warning light illuminated. The contact stated that while driving at an undisclosed speed, the vehicle was running rough. The vehicle was taken to the independent mechanic where it was diagnosed with a cylinder misfire and burned spark plug, and that there was oil inside the cylinder and on the spark plug. The contact was informed that the parts needed to be replaced. …”
NHTSA complaint #11712167, filed 2026-01, 112,000 miles“The contact owns a 2019 Kia Optima. The contact stated that the catalytic converter was previously replaced. The contact stated that while driving at 60 MPH, two weeks later, the check engine warning light illuminated, and the vehicle started misfiring. The contact drove to the residence. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the engine needed to be replaced. The mechanic related the failure to an unknown engine recall, and the contact was referred to the dealer for assistance. …”
NHTSA complaint #11704565, filed 2025-12, 179,000 miles“The contact owns a 2019 Kia Optima. The contact stated while driving at undisclosed speeds, the check engine warning light was flashing, and the vehicle went into LIMP Mode. The vehicle was towed to the local dealer, where it was diagnosed and determined that an unknown sensor needed to be replaced. The vehicle was repaired, but the failure recurred. While driving 65 MPH, the driver came to a stop, and upon accelerating, the check engine warning light started flashing. The vehicle was consuming an excessive amount of engine oil. …”
NHTSA complaint #11624194, filed 2024-11, 92,000 milesRelated service bulletins
- 10249001Jan 12, 2024TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT (PI1805Y/Z) - This bulletin provides information related to the Technical Service Bulletin previously published in (PI1805) titled…
- 10220346Sep 16, 2022TECHNICAL SERVICE BULLETIN: MAINTENANCE REMINDER FEATURE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated…
- 10219692Sep 13, 2022TECHNICAL SERVICE BULLETIN: BEARING CLEARANCE TESTER (BCT) PROCEDURES - This bulletin provides information regarding test procedure of the Bearing Clearance Tester (BCT) Special…
- 10217677Aug 4, 2022VOLUNTARY EMISSIONS SERVICE CAMPAIGN: OWNER NOTIFICATION - This document is the owner notification advising that Kia is conducting a Voluntary Emissions Service Campaign to…
- 10217678Aug 2, 2022VOLUNTARY EMISSIONS SERVICE CAMPAIGN: THETA 2.0L T-GDI ULEV LOGIC IMPROVEMENT FOR EMISSIONS (SC205) - This bulletin provides the procedure to update the emissions-related logic…
- 10217676Aug 2, 2022Sc205_poc: proof of correction card
- 10217675Aug 2, 2022Sc205_stkr: voluntary emissions service campaign completion sticker
- 10217674Aug 2, 2022VOLUNTARY EMISSIONS SERVICE CAMPAIGN: QUESTION AND ANSWER - This document is the Question and Answer Guide containing the most frequently asked questions regarding the Voluntary…
- 10217673Aug 2, 2022VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PARTS AND SERVICE MANAGER MEMO - This document is the announcement to the dealer Parts and Service Managers that Kia is conducting a…
- 10217672Aug 2, 2022VOLUNTARY EMISSIONS SERVICE CAMPAIGN: DEALER PRINCIPAL MEMO - This document is the announcement to the dealer principals that Kia is conducting a Voluntary Emissions Service…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 8 | 5% |
| 2019 | 3 | 1% |
| 2018 | 14 | 6% |
| 2017 | 8 | 3% |
| 2016 | 24 | 3% |
| 2015 | 31 | 3% |
| 2014 | 16 | 3% |
| 2013 | 42 | 3% |
| 2012 | 20 | 2% |
| 2011 | 8 | 1% |
| 2010 | 2 | 3% |
| 2009 | 2 | 2% |
| 2008 | 5 | 3% |
| 2007 | 4 | 2% |
| 2006 | 9 | 6% |
| 2005 | 6 | 4% |
| 2004 | 11 | 5% |
| 2003 | 7 | 5% |
| 2002 | 7 | 7% |
| 2001 | 24 | 17% |
Other parts of the 2019 Kia Optima
92 complaintsOther or unknown
43 complaintsForward collision avoidance
36 complaintsElectrical system
23 complaintsBrakes
19 complaintsFuel system
18 complaintsTransmission and drivetrain
17 complaintsBody and structure
14 complaintsAir bags
12 complaintsVehicle speed control
10 complaintsLane departure
7 complaintsSteering
6 complaints
← All problems reported for the 2019 Kia Optima
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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