2017 Kia Optima fuel/propulsion system problems
20 owner complaints filed with NHTSA name the fuel/propulsion system on the 2017 Kia Optima — 8% of all complaints for this model year.
What owners report
“Loosing oil putting oil in every 3 to 4 days no leaks on ground or oil pan or drain plug.oil don't smell or looks burnt happened around did 2 oil changes in a week still the same. Car will sputer hesitation on acceleration every so often”
filed Jun 3, 2026
“The electrical wiring harness connecting to the hybrid system electric fuel pump(s) was found to have significant corrosion and a missing factory-installed protective covering. This is a manufacturing defect. The protective covering was never installed at the factory, leaving the wiring exposed to…”
filed Apr 16, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Optima years
| Year | Reports | Share |
|---|---|---|
| 2020 Optima | 9 | 7% |
| 2019 Optima | 15 | 7% |
| 2018 Optima | 13 | 6% |
| 2016 Optima | 53 | 7% |
| 2015 Optima | 44 | 4% |
| 2014 Optima | 41 | 7% |
| 2013 Optima | 91 | 7% |
| 2012 Optima | 42 | 5% |
| 2011 Optima | 21 | 4% |
| 2010 Optima | 1 | 1% |
| 2009 Optima | 1 | 1% |
| 2008 Optima | 3 | 2% |
Other reported problem areas on the 2017 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.