What goes wrong with a 2016 Hyundai Sonata?
Owners and drivers have submitted 1,224 complaints about this vehicle to NHTSA. They are reports, not confirmed defects, and here is what they are about.
Owners and drivers have submitted 1,224 complaints about the 2016 Hyundai Sonata to NHTSA, spread across 56 component categories. The most reported category is engine, with 446 reports. A complaint is somebody telling the federal government what happened to their car. It is not a confirmed defect, not a manufacturer finding, and not a failure rate.
- Complaints submitted
- 1,224
- Component categories
- 56
- Most reported
- Engine
- Latest report
- August 10, 2026
Data: NHTSA Office of Defects Investigation, as ingested August 17, 2026
What these numbers are, before the table
These are complaints submitted to NHTSA by owners and drivers. They are reports, not confirmed defects and not a manufacturer finding, and they are not a failure rate: a car that sold well collects more of them than a rare one for no other reason than that more people own it.
The component category is chosen by the person filing, out of NHTSA's own list, which is why one of the largest categories on almost every vehicle is "unknown or other". Read the table as a map of what owners chose to report rather than as a ranking of what breaks.
All 56 categories.
Most reported first. Crashes, fires, injuries and deaths are counts of reports that also mentioned one, as recorded by the person filing.
| Component | Complaints | Crashes | Fires | Injuries | Latest report |
|---|---|---|---|---|---|
| Engine | 446 | 1 | 19 | 0 | August 10, 2026 |
| Unknown or other | 91 | 7 | 7 | 4 | May 6, 2026 |
| Electrical system | 90 | 4 | 6 | 2 | May 16, 2026 |
| Engine | 72 | 0 | 1 | 0 | January 7, 2026 |
| Power train | 59 | 0 | 1 | 0 | June 2, 2026 |
| Service brakes | 42 | 3 | 4 | 3 | February 15, 2026 |
| Exterior lighting | 38 | 0 | 3 | 0 | April 15, 2026 |
| Electrical system | 34 | 1 | 1 | 0 | May 2, 2025 |
| Fuel/propulsion system | 33 | 1 | 1 | 0 | March 25, 2026 |
| Steering | 33 | 1 | 0 | 1 | July 15, 2025 |
| Structure | 31 | 2 | 0 | 2 | March 20, 2025 |
| Vehicle speed control | 30 | 5 | 1 | 3 | February 15, 2026 |
| Air bags | 21 | 9 | 0 | 6 | January 14, 2026 |
| Unknown or other | 19 | 0 | 1 | 0 | November 11, 2025 |
| Engine | 18 | 0 | 0 | 0 | April 12, 2023 |
| Engine and engine cooling | 17 | 0 | 0 | 0 | March 27, 2026 |
| Power train | 13 | 1 | 0 | 0 | August 31, 2024 |
| Electrical system | 12 | 0 | 0 | 0 | January 6, 2023 |
| Seat belts | 9 | 0 | 0 | 0 | December 19, 2024 |
| Forward collision avoidance | 8 | 0 | 0 | 0 | September 9, 2025 |
| Visibility | 8 | 2 | 0 | 0 | May 28, 2025 |
| Exterior lighting | 7 | 0 | 0 | 0 | April 7, 2023 |
| Fuel/propulsion system | 7 | 0 | 0 | 0 | January 1, 2025 |
| Service brakes | 7 | 0 | 0 | 0 | December 26, 2019 |
| Electronic stability control (ESC) | 5 | 0 | 0 | 0 | May 4, 2020 |
| Unknown or other | 5 | 0 | 0 | 0 | January 3, 2022 |
| Visibility | 5 | 0 | 0 | 0 | July 10, 2024 |
| Latches/locks/linkages | 4 | 0 | 0 | 0 | May 1, 2023 |
| Seats | 4 | 1 | 0 | 1 | November 20, 2025 |
| Vehicle speed control | 4 | 1 | 0 | 0 | October 19, 2023 |
| Visibility/wiper | 4 | 0 | 0 | 0 | January 8, 2024 |
| Engine and engine cooling | 3 | 0 | 1 | 0 | January 8, 2022 |
| Forward collision avoidance | 3 | 0 | 0 | 0 | October 19, 2023 |
| Hybrid propulsion system | 3 | 0 | 0 | 0 | April 12, 2023 |
| Lane departure | 3 | 0 | 0 | 0 | May 29, 2022 |
| Power train | 3 | 0 | 0 | 0 | November 15, 2022 |
| Service brakes, hydraulic | 3 | 1 | 0 | 0 | December 1, 2024 |
| Suspension | 3 | 0 | 0 | 0 | September 15, 2022 |
| Tires | 3 | 0 | 0 | 0 | April 8, 2023 |
| Fuel/propulsion system | 2 | 0 | 0 | 0 | June 4, 2018 |
| Hybrid propulsion system | 2 | 0 | 0 | 0 | October 25, 2023 |
| Parking brake | 2 | 0 | 0 | 0 | July 21, 2016 |
| Service brakes, air | 2 | 0 | 0 | 0 | April 7, 2023 |
| Steering | 2 | 2 | 0 | 1 | February 6, 2023 |
| Structure | 2 | 0 | 0 | 0 | October 16, 2018 |
| Wheels | 2 | 0 | 0 | 0 | July 15, 2025 |
| Back over prevention | 1 | 0 | 0 | 0 | February 14, 2024 |
| Electronic stability control (ESC) | 1 | 0 | 0 | 0 | June 26, 2016 |
| Equipment | 1 | 0 | 0 | 0 | October 18, 2020 |
| Fuel system, gasoline | 1 | 0 | 0 | 0 | November 15, 2022 |
| Hybrid propulsion system | 1 | 0 | 0 | 0 | May 15, 2026 |
| Interior lighting | 1 | 0 | 0 | 0 | October 2, 2016 |
| Lane departure | 1 | 0 | 0 | 0 | January 7, 2026 |
| Seat belts | 1 | 0 | 0 | 0 | October 5, 2017 |
| Service brakes, air | 1 | 0 | 0 | 0 | January 15, 2021 |
| Traction control system | 1 | 0 | 0 | 0 | January 15, 2021 |
Of the 1,224 complaints filed about this vehicle, 42 mentioned a crash, 46 a fire and 23 an injury, and 3 mentioned a death. These are counts of what reporters wrote, not findings, and NHTSA does not verify them at the point of filing.
What to do if your car is doing one of these
A category on this page is not a diagnosis. If your car is making a noise, showing a light, or leaking something, the useful question is what that symptom means and whether it needs the shop tonight or next week.
The symptoms guide works the other way round from this page: it starts with what you can hear, see or smell and says whether it is roadside, a tow, or a booking. If what you are seeing matches a recall campaign on this vehicle, the repair is free at a franchised dealer.
Who works on Sonatas in Brooklyn?
We do, at 619 Coney Island Avenue, Brooklyn, NY 11218, family owned since 1977. Diagnostics first, then the work, and a flatbed if it will not start where it sits.
NHTSA Office of Defects Investigation, owner-submitted complaints. Anyone may file one, they are published as filed, and NHTSA opens an investigation only when a pattern in them warrants it. A complaint that led to an investigation and a complaint that did not look identical in this table.
Registration counts: New York State DMV registration file, five New York City counties, August 17, 2026 snapshot. A registration is a record in a state database, not a car on the road, and the borough is where the registrant receives mail rather than where the car is driven. How we counted.
Fuel economy: EPA and DOE ratings published at FuelEconomy.gov, unaveraged, so each configuration is its own row. Recalls and complaints: NHTSA Office of Defects Investigation, the agency's own wording, as ingested August 17, 2026. Complaints are reports members of the public filed, not confirmed defects. The NYC registration study is the analysis these counts sit on top of.
234 vehicles in this directory, covering 520,848 registered cars. Data as of August 17, 2026.