2015 Hyundai Sonata Hybrid electrical system problems
24 owner complaints filed with NHTSA name the electrical system on the 2015 Hyundai Sonata Hybrid — 46% of all complaints for this model year.
What owners report
“The contact's sister-in-law owned a 2015 Hyundai Sonata Hybrid. The contact stated that while the vehicle owner was driving 55 MPH, the owner noticed smoke coming from under the hood. The owner parked and exited the vehicle, and while attempting to inspect the vehicle, the owner noticed flames…”
filed Sep 15, 2026
“The Hybrid system kept crashing ! Triggering the auto theft and would not connect to fob , told it was immobilzer, and/or shortage in EV battery!!!”
filed Aug 4, 2026
“Component Involved: Hybrid Propulsion System High Voltage Battery / EV Battery Electrical System Power Train Incident Summary: I am reporting a serious and repeated safety defect involving my 2015 Hyundai Sonata Hybrid. This vehicle has experienced three separate incidents where warning messages related to the…”
filed Apr 17, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Electrical System problems in other Sonata Hybrid years
| Year | Reports | Share |
|---|---|---|
| 2022 Sonata Hybrid | 11 | 58% |
| 2021 Sonata Hybrid | 25 | 47% |
| 2017 Sonata Hybrid | 18 | 23% |
| 2016 Sonata Hybrid | 35 | 27% |
| 2014 Sonata Hybrid | 10 | 37% |
| 2013 Sonata Hybrid | 24 | 22% |
| 2012 Sonata Hybrid | 23 | 15% |
| 2011 Sonata Hybrid | 17 | 18% |
Other reported problem areas on the 2015 Hyundai Sonata Hybrid
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.