2012 Kia Optima Hybrid Engine cooling Problems
- Complaints
- 2about this part
- Share
- 2%of 109 total for the year
- Median mileage
- 63,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2012 Kia Optima Hybrid, 2% of the 109 complaints for this model year. Where a mileage was given, the median is 63,000 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.
“We first took it to edwards Kia in council bluffs, ia on 2/11/15. When I originally took it to them, the service engine light had just come on and the car had just started doing the lunging and hesitating when shifting in lower gears. It was as if the accelerator was sticking. They downloaded a couple updates and turned the service engine light off. They advised the light came on because of the update that was needed and said that the shifting /idling issue was better. As soon as I drove it, I noticed it was still doing the same thing. …”
NHTSA complaint #10712278, filed 2015-04Related service bulletins
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- 10168850Nov 26, 2019TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU AND/OR STEERING COLUMN HOUSING - This bulletin has been revised to include additional information.This bulletin…
- 10167214Oct 14, 2019PITSTOP: LOWER ENGINE SERVICE COVER BOLT LOCATIONS - This Pitstop provides information on the correct bolt location of the lower engine service cover on 2016-2020MY Optima 2.4L…
Engine cooling: other model years
Other parts of the 2012 Kia Optima Hybrid
72 complaintsElectrical system
20 complaintsBrakes
12 complaintsTransmission and drivetrain
10 complaintsSteering
9 complaintsOther or unknown
8 complaintsVehicle speed control
5 complaintsAir bags
4 complaintsFuel system
3 complaintsBody and structure
3 complaintsWheels
2 complaintsExterior lighting
1 complaints
← All problems reported for the 2012 Kia Optima Hybrid
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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