2004 Hyundai Sonata power train problems
10 owner complaints filed with NHTSA name the power train on the 2004 Hyundai Sonata — 5% of all complaints for this model year.
What owners report
“UNKNOWN, I recently purchased it from a dealership in Lemon Grove Cailfornia. Ever since I bought it,it has never had a catalytic converter and only one muffler. It is a 2.7L motor DOHC and requires 2 catalytic converters and dual exhaust due to the double overhead cam. It has cause motor oil into…”
filed Sep 19, 2023
“Tl* the contact owns a 2004 hyundai sonata. When the vehicle was shifted into drive, it accelerated on its own. The contact had to tap the accelerator pedal a few times or shift into park for the vehicle to operate normally. There were no warning indicators illuminated. The dealer and manufacturer…”
filed Dec 10, 2018
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 2004 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.