2010 Hyundai Sonata engine problems
29 owner complaints filed with NHTSA name the engine on the 2010 Hyundai Sonata — 8% of all complaints for this model year.
What owners report
“Subject: Non-Collision Engine Compartment Fire - 2010 Hyundai Sonata (VIN: [XXX] ) "On dec 19 2025, my 2010 Hyundai Sonata suffered a sudden, non-collision fire that originated in the engine compartment. While there are currently no 'open' recalls on this VIN, I am formally reporting this incident…”
filed Dec 20, 2025
“Car has had check engine light on for 3 + years. Have taken it to several mechanics including a Hyundai dealership and none of them can figure out what is wrong. Have replaced water pump, belts x2 in a year (same belt) and thermostat x 3 again (all within 2 years). Dash fuel gage and Dash…”
filed Sep 11, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.
23-EM-005H · Service Bulletin/Repair Instructions · issued Oct 13, 2023Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement.
22-EM-010H · Service Bulletin/Repair Instructions · issued Jul 28, 2022
Engine problems in other Sonata years
| Year | Reports | Share |
|---|---|---|
| 2024 Sonata | 3 | 7% |
| 2023 Sonata | 26 | 31% |
| 2022 Sonata | 24 | 26% |
| 2021 Sonata | 34 | 27% |
| 2020 Sonata | 30 | 18% |
| 2019 Sonata | 83 | 53% |
| 2018 Sonata | 206 | 56% |
| 2017 Sonata | 382 | 50% |
| 2016 Sonata | 444 | 62% |
| 2015 Sonata | 614 | 54% |
| 2014 Sonata | 299 | 40% |
| 2013 Sonata | 728 | 38% |
Other reported problem areas on the 2010 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.