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