2009 Hyundai Sonata power train problems
41 owner complaints filed with NHTSA name the power train on the 2009 Hyundai Sonata — 9% of all complaints for this model year.
What owners report
“Passenger seat belt doesn’t click in. Miss fire Poor acceleration Exhaust leak Power lost Mechanic can’t find the problem Check engine light on”
filed Feb 3, 2026
“We purchased this vehicle used 9/2022. A week later it began to jump upon accelerating and slowing down. We took it in and they said it was the power train control module and our warranty would not cover it. So it would cost us around $1600. We can’t afford that. We have only driven it a few times…”
filed Jul 3, 2022
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Hyundai approves only the ATF, DCT gear oil and IVT gear oil specified in the vehicleâ  s ownerâ  s manual. ï · Use of other ATF may result in improper shift quality or other drivability conditions. ï · Use…
21-AT-006H · Service Bulletin/Repair Instructions · issued May 21, 2021
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% |
| 2015 Sonata | 133 | 12% |
| 2014 Sonata | 54 | 7% |
| 2013 Sonata | 94 | 5% |
Other reported problem areas on the 2009 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.