2015 Hyundai Sonata fuel/propulsion system problems
75 owner complaints filed with NHTSA name the fuel/propulsion system on the 2015 Hyundai Sonata — 7% of all complaints for this model year.
What owners report
“After receiving the Hyundai Service Campaign 9C2 update on my 2015 Hyundai Sonata on XXX, I have started having jerky acceleration when the car is first started and am driving. Also, while driving at highway speed (~65 mph)) and I take my foot off the accelerator to coast, the engine RPM drops…”
filed Sep 11, 2026
“Issue- fuel pump/supply line causing fuel to leak and fuel smell around the outside of the car. This can cause a major fire, explosion, death for myself and others around me. Problem has been confirmed by auto repair shop. No warning messages on car dash board, just strong smell of gas. Replaced…”
filed Aug 19, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Sonata years
| Year | Reports | Share |
|---|---|---|
| 2024 Sonata | 1 | 2% |
| 2023 Sonata | 37 | 43% |
| 2022 Sonata | 22 | 24% |
| 2021 Sonata | 20 | 15% |
| 2020 Sonata | 45 | 25% |
| 2019 Sonata | 12 | 7% |
| 2018 Sonata | 31 | 8% |
| 2017 Sonata | 33 | 4% |
| 2016 Sonata | 33 | 5% |
| 2014 Sonata | 49 | 7% |
| 2013 Sonata | 134 | 7% |
| 2012 Sonata | 99 | 6% |
Other reported problem areas on the 2015 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.