2007 Kia Optima electrical system problems
14 owner complaints filed with NHTSA name the electrical system on the 2007 Kia Optima — 8% of all complaints for this model year.
What owners report
“Vehicle burns out blinker bulbs and headlights at an extremely accelerated rate: one a month. Additionally, the wiring harness is heated to the point of being melted. This is a fire hazard. I believe this may be a voltage regulation or ground issue.”
filed Feb 5, 2020
“Ever since we got this car it has been in 2 accidents due to the rain, when I started to look into what was causing this problem I noticed there is a hole in the plastic right below the oil filter. This allows water to get on the engine causing it to short power for the car. This in return causes…”
filed Nov 19, 2017
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Electrical System problems in other Optima years
| Year | Reports | Share |
|---|---|---|
| 2020 Optima | 12 | 9% |
| 2019 Optima | 22 | 11% |
| 2018 Optima | 33 | 14% |
| 2017 Optima | 25 | 10% |
| 2016 Optima | 99 | 13% |
| 2015 Optima | 135 | 13% |
| 2014 Optima | 59 | 10% |
| 2013 Optima | 145 | 11% |
| 2012 Optima | 122 | 13% |
| 2011 Optima | 61 | 10% |
| 2010 Optima | 13 | 17% |
| 2009 Optima | 16 | 14% |
Other reported problem areas on the 2007 Kia Optima
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.