2012 Hyundai Sonata power train problems
97 owner complaints filed with NHTSA name the power train on the 2012 Hyundai Sonata — 6% of all complaints for this model year.
What owners report
“Knock sensor needs to be replaced upon evaluation of an inspection on March 27, 2026. It failed a mission codes and upon my understanding the knock sensor one circuit range performance pink wonder single sensor is an engine failure as well as I did an ODB test myself on May 19 of 2026 for the Knox…”
filed Jun 16, 2026
“I own a 2012 Hyundai sonata with 114000 miles on it. I have had it since 62000 miles and have replaced a lot of parts to keep it running well. My current issue is the hybrid charging system warning light comes on and the hybrid system will stop working when it does this. It has already left me…”
filed Aug 9, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- In the affected vehicles, the transmission shift cable may detach from from the shift…Campaign 14V434000 · Jul 18, 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% |
| 2015 Sonata | 133 | 12% |
| 2014 Sonata | 54 | 7% |
| 2013 Sonata | 94 | 5% |
Other reported problem areas on the 2012 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.