2015 Hyundai Sonata power train problems
133 owner complaints filed with NHTSA name the power train on the 2015 Hyundai Sonata — 12% of all complaints for this model year.
What owners report
“VEHICLE: 2015 Hyundai Sonata, 2.4L Theta II GDI engine Mileage at time of incident: [ 93k Date update performed: June 2026 Dealer/location where update was performed: Fitzgerald Hyundai Gaithersburg, MD DESCRIPTION OF PROBLEM: After my vehicle received the ECM software update issued under Hyundai…”
filed Jul 4, 2026
“The incident began following a routine maintenance visit on March 16, 2026, and has been a continuous, ongoing safety hazard every single day since. While the vehicle was in for routine brake service and an oil change, the dealership automatically applied an open, manufacturer-mandated ECU S/W…”
filed Jun 25, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Affected vehicles may have been assembled with an incorrect left axle shaft which may…Campaign 14V784000 · Dec 9, 2014
Power Train problems in other Sonata years
| Year | Reports | Share |
|---|---|---|
| 2024 Sonata | 6 | 14% |
| 2023 Sonata | 15 | 18% |
| 2022 Sonata | 24 | 26% |
| 2021 Sonata | 22 | 18% |
| 2020 Sonata | 23 | 14% |
| 2019 Sonata | 8 | 5% |
| 2018 Sonata | 39 | 11% |
| 2017 Sonata | 55 | 7% |
| 2016 Sonata | 59 | 8% |
| 2014 Sonata | 54 | 7% |
| 2013 Sonata | 94 | 5% |
| 2012 Sonata | 97 | 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.