2015 Kia Optima Other or unknown Problems
- Complaints
- 140about this part
- Share
- 14%of 1,010 total for the year
- Median mileage
- 62,555miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 140 complaints about the other or unknown of the 2015 Kia Optima, 14% of the 1,010 complaints for this model year. Where a mileage was given, the median is 62,555 miles. 2 of these say a crash was involved and 8 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“While driving doesn't matter the speed, my car doesn't accelerate and jerks, it had does these many times and I take it into the shop, at least 3 times now, and they can't find anything. Since it doesn't do it when they test drive it, they don't know what is wrong. But it is very annoying, since there are times I have been on a highway and my car doesn't speed up.”
NHTSA complaint #11573059, filed 2024-02, 125,935 miles“3 months prior to my car going into limp mode I had an incident where I was on the highway and had to come to a stop of major traffic and suddenly my car cut off out of nowhere. I got it to crank after putting it in park, but it was very scary being on the highway thank God it was traffic to where cars wasn't going so fast. …”
NHTSA complaint #11570912, filed 2024-02, 101,650 miles“Something is so wrong with my car, I can not see through the UVO screen no sound at all, can not detect my car key unless I put my key on dashboard. UVO works and dies instantly. Something in computer part of my KIA is BAD not operating normal. I take my car to KIA in Lithonia GA still NO HELP!! NO KIA DEALER WILL HELP ME UNLESS I PAY A HIGH DOLLAR! My 2015 Kia Optima EX needs help.”
NHTSA complaint #11554959, filed 2023-11, 141,727 miles“Engine light plus triangle light keeps coming on and off part was replaced light stayed off for 1 day came back on and losses power I have my grandchildren this happened in traffic keep taking to dealershop they claim rhey are qaiting on qors from manufacturers no word for 2 months now they have been dodging my calls by putting me on hold or dropping my calls”
NHTSA complaint #11245965, filed 2019-08, 50,000 miles“The following happens anytime while driving the electronic control unit and software, sensors, actuators, warning lights, fault codes, and performance related concerns of the electronic stability control system. My passenger window won't go up once you put it down without a fight. I been to the dealer 4 times and it's not fixed.”
NHTSA complaint #11232251, filed 2019-07, 85,000 milesOther or unknown: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 18 | 12% |
| 2019 | 43 | 20% |
| 2018 | 39 | 17% |
| 2017 | 33 | 13% |
| 2016 | 123 | 16% |
| 2015 | 140 | 14% |
| 2014 | 90 | 15% |
| 2013 | 189 | 14% |
| 2012 | 88 | 10% |
| 2011 | 41 | 7% |
| 2010 | 5 | 7% |
| 2009 | 3 | 3% |
| 2008 | 9 | 6% |
| 2007 | 4 | 2% |
| 2006 | 9 | 6% |
| 2005 | 6 | 4% |
| 2004 | 12 | 5% |
| 2003 | 7 | 5% |
| 2002 | 1 | 1% |
| 2001 | 4 | 3% |
Other parts of the 2015 Kia Optima
623 complaintsElectrical system
135 complaintsBrakes
90 complaintsBody and structure
76 complaintsSteering
69 complaintsFuel system
56 complaintsTransmission and drivetrain
49 complaintsVehicle speed control
36 complaintsEngine cooling
31 complaintsAir bags
26 complaintsExterior lighting
23 complaintsElectronic stability control
10 complaints
← All problems reported for the 2015 Kia Optima
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