2017 Hyundai Sonata fuel/propulsion system problems
33 owner complaints filed with NHTSA name the fuel/propulsion system on the 2017 Hyundai Sonata — 4% of all complaints for this model year.
What owners report
“I am writing to report a direct violation of the Theta II Class Action Settlement terms by Hyundai Motor America. This morning , I emailed an Executive Case Manager explicitly explaining that my 2017 Sonata has an active P1326 code, has the 2019 KSDS update, and requires a mandatory diagnostic…”
filed Jul 21, 2026
“Supplemental Information to Existing NHTSA Complaint involving a 2017 Hyundai Sonata Plug-in Hybrid (VIN: [XXX] ) While traveling at approximately 70 MPH on a heavily traveled highway, the vehicle suddenly and completely lost propulsion without warning. The vehicle rapidly decelerated in traffic…”
filed May 31, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Sonata years
| Year | Reports | Share |
|---|---|---|
| 2024 Sonata | 1 | 2% |
| 2023 Sonata | 36 | 43% |
| 2022 Sonata | 22 | 24% |
| 2021 Sonata | 18 | 14% |
| 2020 Sonata | 45 | 26% |
| 2019 Sonata | 11 | 7% |
| 2018 Sonata | 30 | 8% |
| 2016 Sonata | 32 | 4% |
| 2015 Sonata | 72 | 6% |
| 2014 Sonata | 49 | 7% |
| 2013 Sonata | 133 | 7% |
| 2012 Sonata | 99 | 6% |
Other reported problem areas on the 2017 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.