On Nov. 17 while driving app. 65 mph on the highway the car suddenly shut itself off. All of the dashboard lights lit up & the car would not restart. After 10 min. Of trying to restart the car, the car started again, & all the lights on the car disappeared. The following day, while waiting in the turning lane at a red light, the car sputtered & turned off. All the lights on the dashboard lit up & the car wouldn't start I had the car towed on Nov 18 202 to a Hyundai dealership. The dealership reported that there was an internal short with the ABS module & the hydraulic module assembly was replaced. On, Nov 24, I was driving the car & the car stalled all the warning lights went back on. I had the car towed the dealership where it stayed until December 11 the dealership stated that they could not find anything wrong with the car. I picked up the car on Dec 11 & the car appeared to be working normally. However, on dec19, while stopped at a red light, the car began to shake back & forth at idle & the rpms started to go up despite my foot being on the brakes. The car behind me saw what was happening & helped me pull over to the side of the road. I had the car towed to the dealership yet again. The dealership stated that they were able to duplicate the issue on Dec 23, 2020. However, no fix was done to the car. The dealership claimed that the car was in a 'relearn' process & it would need more time for the car to 'relearn' how to drive again. Everything seemed okay after the Dec 23 incident until Feb 8 2021 when I tried to stop while in traffic & the brakes would not work at all. I narrowly avoided getting into a major accident & once again brought the car to the dealership. The dealership found that the master cylinder assembly was internally defective & was not holding pressure and as a result the brakes were not working. The vehicle was returned to me on Feb 11 2021.

- Far Rockaway, NY, USA

The contact owns a 2020 Hyundai Sonata. The contact stated while driving 35 mph and entering the highway, the vehicle would not shift into gear and the vehicle was sputtering. The contact stated that the vehicle would not exceed 45 mph. The contact pulled onto the shoulder of the highway and shut-off the vehicle. No warning light was illuminated. The contacted restarted the vehicle however, the failure persisted. The contact pulled off the highway and had to restart the vehicle several times. The vehicle was taken to the local dealer - webb Hyundai merrillville (1000 81st ave merrillville in 46410, (219) 249-4961) where the diagnosis was not determined for the engine however, the contact was informed that the heating system was faulty and the instrument panel failed to provide an accurate warning light for the failures. The vehicle had not been repaired. The manufacturer was notified of the failure but, did not provide any further assistance. The failure mileage was 14,698.

- Hobart, IN, USA

My car stalled and stuttered between 1000 and 1500 miles in traffic and couldn't get it into gear once started. It was the fuel rail sensor. Now at 6000 miles did same thing. If sits for bit works again. It also reset itself and I lost all preprogrammed information. The gas door also opens at times when unlock driver door. The dealership had it the first time for over 30 days and had to contact engineers to fix it.

- Beverly Hills, FL, USA

Vehicle abruptly stopped in a traffic signal without giving any indications what so ever. When tried to restart it stalled pretty badly causing excessive vibrations. This had just 1900 miles on it. Vehicle didn't have any mil or any visible information about the issue. It created a huge traffic pile up due to the peak hour in which this problem started. Few days ago there was issue with starting but it resolved after couple of minutes, this time the vehicle had to be towed to the dealership and I lost my days work and pay. Biggest concern is how abruptly it stopped in a busy street.

- Laurel Springs, NJ, USA

Vehicle rough idled & eventually shuddered to a stop. This happened four times while in gear and idling at appx 1000-1500 miles. Between 1500-2000 miles, vehicle shut down while driving appx 60mph on a county road. At appx 2700 miles, mpgs drastically impacted when vehicle suddenly stopped shifting gears properly while in motion at appx 70mph on the highway. Check engine light appeared with message regarding ecs issues. Vehicle still drives, it just seems to struggle with efficiency and shifting correctly.

- Council Bluffs, IA, USA