2021 Kia K5 fuel system, gasoline problems
13 owner complaints filed with NHTSA name the fuel system, gasoline on the 2021 Kia K5 — 8% of all complaints for this model year.
What owners report
“The contact owns a 2021 Kia K5. The contact received notification of NHTSA Campaign Number: 25V794000 (Fuel System, Gasoline). The vehicle was taken to a dealer for the recall repair. The contact was struggling to receive updates on the status of the vehicle. The contact spoke with a service clerk…”
filed Aug 17, 2026
“The contact owns a 2021 Kia K5. The contact stated that while driving approximately 55 MPH, the fuel gauge suddenly went from one-half tank to empty. The fuel level displayed 120 miles to empty. The contact attempted to refuel the vehicle but was unable to add fuel to the tank. The contact also…”
filed Jul 23, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- A damaged check valve can allow air to enter the fuel tank, causing it to expand and…Campaign 25V794000 · Nov 17, 2025
- Fuel may leak at the pipe connection between the high-pressure fuel pump and fuel railCampaign 21V519000 · Jul 8, 2021
Fuel System, Gasoline problems in other K5 years
| Year | Reports | Share |
|---|---|---|
| 2024 K5 | 2 | 7% |
| 2023 K5 | 14 | 13% |
| 2022 K5 | 8 | 6% |
Other reported problem areas on the 2021 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.