What component or system failed or malfunctioned, and is it available for inspection upon request" Since april 2025 i-??ve been having low oil readings in my vehicle despite regular oil changes I took it into the dealer since my vehicle was still under warranty, which they stated only one part was under warranty. I had to pay $800 after this was replaced. I started having engine light come on. This engine light when I paid a diagnostic fee I learned that the cylinder three was misfiring. It was suggested that I have an oil change and get the oil level checked again within a week. This was done and it was determined that it was burning too much oil. I submitted this to the insurance and was told that this was not covered that there must be another reason why this was not working the way it should. 3 weeks ago Then I was asked to replace the spark plugs and coils. These were replaced for an additional cost of approximately $300. After replacing this, the check engine light gave the same condition of third cylinder damage.. And the oil level continue to decrease The vehicle was left with the dealer for approximately 10 days. They stated that the engine needed to be cleaned due to possible carbon buildup for about $800 then they stated that the spark plugs and coils needed to be replaced with a specific brand and not the type that Was previously used. Then my vehicle was returned to me, performing sluggishly with the check engine light returning with the same condition of third cylinder misfire. An inspection is available. How was your safety put at risk? The possibility engine failure away from hom Has the problem been reproduced or confirmed by a dealer or independent service center? Yes twice Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear" Yes frequently over the last 2 months

- Reynoldsburg, OH, USA

Fuel pump went out

- Saint Augustine, FL, USA

While driving the car it suddenly decelerated and multiple warning errors on electronics, driver assist, braking started going off then the error message of Check Hybrid Turn Engine Off came on. I was able to coast into a parking lot as the car could only go around 5 miles an hour. I turned the care off and on and the Check Hybrid Turn Engine Off remained for the 2 hours it took to have a tow truck come to take the car to a dealer. The car has 16,383 miles and prior to this there was no warning or error messages. The dealer hasn't reviewed the car yet, but the fact that it immediately, with no warning, decelerated and would go only 5 miles an hour is very risky and unsafe.

- Reisterstown, MD, USA

Car has issues with fuel pump with only 64k miles. I was told by Hyundai that I need a new fuel pump. With such low mileage this appears most likely to be a manufacturing defect. Hyundai Sonata has had recall issues regarding this part in the past.

- Las Vegaa, NV, USA

The message "hybrid system failure" suddenly displayed and the vehicle lost power and stalled. This occured on hyw (65mph) and nearly caused wreck from behind

- Cascade Locks, OR, USA

2019 Sonata 2.0T with just over 11K miles on it began to suddenly studder and want to stall at low RPM or at the stop. Obdii error code P0302. Dealership said cylinder 2 had little to no compression and needed repair. Could barely limp vehicle to dealership and smell the unburned fuel being ported out of the exhaust.

- Grovetown, GA, USA