2023 Kia K5 fuel/propulsion system problems
39 owner complaints filed with NHTSA name the fuel/propulsion system on the 2023 Kia K5 — 38% of all complaints for this model year.
What owners report
“What component or system failed or malfunctioned, and is it available for inspection upon request? Fuel pump, fuel tank and valve check. How was your safety or the safety of others put at risk? SEE PHOTO. on turnpike 95. Has the problem been reproduced or confirmed by a dealer or independent…”
filed Jul 31, 2026
“car taken to Hutchenson Kia of Macon for Kia recall Campaign SC356. I heard loud pop a few days before appointment. The dealership stated the gas tank failed structural inspection and has already expanded. This put me and my children in danger. The dealership kept my vehicle and will not give me me…”
filed Jul 30, 2026
“The vehicle is grounded at the dealership due to NHTSA Campaign 25V794 (Kia Recall SC356). The vehicle's fuel tank has critically expanded and swollen, causing permanent structural and chassis deformation inside the vehicle. The dealership service department has documented this structural damage, confirmed the vehicle…”
filed Jul 30, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other K5 years
| Year | Reports | Share |
|---|---|---|
| 2024 K5 | 2 | 7% |
| 2022 K5 | 34 | 28% |
| 2021 K5 | 40 | 25% |
Other reported problem areas on the 2023 Kia K5
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.