2011 Hyundai Sonata structure problems
73 owner complaints filed with NHTSA name the structure on the 2011 Hyundai Sonata — 2% of all complaints for this model year.
What owners report
“The contact owns a 2011 Hyundai Sonata. The contact stated that while the vehicle was parked, an inspection revealed that the rear frame of the vehicle, located near the passenger’s side, was severely corroded. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The…”
filed Dec 18, 2025
“The Vehicle: "I have a 2011–2014 Hyundai Sonata with massive underbody rust." The Failed Fix: "Service Campaign 946 was completed on this car in 2017, but it did not work. The rust is now worse." The Safety Risk: "The structural metal is so rusty that I am afraid it will snap while I am driving…”
filed Dec 18, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Structure problems in other Sonata years
| Year | Reports | Share |
|---|---|---|
| 2024 Sonata | 4 | 9% |
| 2023 Sonata | 4 | 5% |
| 2022 Sonata | 3 | 3% |
| 2021 Sonata | 4 | 3% |
| 2020 Sonata | 16 | 9% |
| 2019 Sonata | 7 | 4% |
| 2018 Sonata | 15 | 4% |
| 2017 Sonata | 37 | 5% |
| 2016 Sonata | 31 | 4% |
| 2015 Sonata | 52 | 5% |
| 2014 Sonata | 16 | 2% |
| 2013 Sonata | 50 | 3% |
Other reported problem areas on the 2011 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.