2021 Hyundai Sonata fuel system, gasoline problems
12 owner complaints filed with NHTSA name the fuel system, gasoline on the 2021 Hyundai Sonata — 9% of all complaints for this model year.
What owners report
“The contact owns a 2021 Hyundai Sonata. The contact received notification of NHTSA Campaign Number: 25V796000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The contact stated that while driving at an undisclosed speed, the vehicle independently…”
filed Aug 21, 2026
“The contact owns a 2021 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the fuel gauge indicated that the tank was half full. The contact stated that the gauge erroneously indicated that the tank was empty, and the check engine warning light was illuminated. The…”
filed Aug 4, 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 25V796000 · Nov 17, 2025
- Fuel may leak at the pipe connection between the high-pressure fuel pump and fuel railCampaign 21V524000 · Jul 9, 2021
Fuel System, Gasoline problems in other Sonata years
| Year | Reports | Share |
|---|---|---|
| 2023 Sonata | 6 | 7% |
| 2022 Sonata | 6 | 7% |
| 2020 Sonata | 12 | 7% |
| 2018 Sonata | 2 | 1% |
| 2016 Sonata | 1 | 0% |
| 2015 Sonata | 9 | 1% |
| 2014 Sonata | 38 | 5% |
| 2013 Sonata | 73 | 4% |
| 2012 Sonata | 14 | 1% |
| 2011 Sonata | 27 | 1% |
| 2010 Sonata | 1 | 0% |
| 2009 Sonata | 9 | 2% |
Other reported problem areas on the 2021 Hyundai Sonata
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.