2015 Hyundai Sonata problems and complaints
Owners have filed 1144 complaints with NHTSA about the 2015 Hyundai Sonata. The most-reported areas: Engine (623), Electrical System (167), Unknown Or Other (164).
Key takeaways
- 1144 owner complaints on file with NHTSA.
- 34 involve a crash, 48 a fire, 32 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Engine | 623 | 54% |
| Electrical System | 167 | 15% |
| Unknown Or Other | 164 | 14% |
| Power Train | 134 | 12% |
| Service Brakes | 76 | 7% |
| Fuel/Propulsion System | 75 | 7% |
| Steering | 74 | 6% |
| Vehicle Speed Control | 61 | 5% |
| Structure | 52 | 5% |
| Exterior Lighting | 38 | 3% |
| Air Bags | 25 | 2% |
| Engine And Engine Cooling | 21 | 2% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2015 Hyundai Sonata 4 DR FWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Engine,fuel/Propulsion System - filed 2026-09-11
After receiving the Hyundai Service Campaign 9C2 update on my 2015 Hyundai Sonata on XXX, I have started having jerky acceleration when the car is first started and am driving. Also, while driving at highway speed (65 mph)) and I take my foot off the accelerator to coast, the engine RPM drops suddenly, anywhere from 2...
Power Train,engine - filed 2026-09-10
In March 2026 Hyundai did an emissions update Campaign 9C2. Since that update my 2015 Hyundai Sonata SE has run rough and shifted hard. Hyundai stopped doing the update in May 2026. Hyundai has not provided any update to fix the problem they created. I am worried the update is damaging the motor and transmission of...
Engine - filed 2026-09-01
The engine failed due to the known recall defect, dealer confirmed loss of compression in cylinders 2 & 4. I am a federal employee stationed overseas on official duty orders, and Hyundai Motor America is delaying safety recall remedies and buyback negotiations since June 9th.
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More for the 2015 Hyundai Sonata
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.