2022 Hyundai Ioniq 5 Steering Problems

The vehicle experienced a sudden failure of the Integrated Charging Control Unit (ICCU), which caused the car to completely shut down and lose power while in motion. My family member, who was driving at the time, stated that the car lost power and shut off without warning on the road, creating an extremely dangerous situation.

1) This is the second occurrence of this issue within the past 12 months. While driving, my EV displayed various blinking lights and a “Check EV Connection” message, followed by a “12v Battery Critical” warning. The entire system began shutting down in the middle of the road.

After a loud bang (fuse blown) the car was unable to move just before I was about to turn into an intersection. The ICCU failed for the second time, all warranty repair completed prior to the incident, first failure occurred in 2024. Both failures occurred close to a when the lead acid battery failed and needed replacement.

My vehicle was fully charged. About 1 mile after leaving my house, I received a warning message on my display (vehicle electrical system error or similar). Shortly after I received another message that power was reduced, then finally, "stop driving".

ICCU failed and Fuse failed, causing car to go into turtle mode, barely made it hope to have it towed to dealer

I was driving to the dealership due to an unusual message. I was on a main street less than 2 minutes from home when an alert came on the screen that said "critical 12v system" I believe. The screen went off shortly after so I was unable to fully capture it.

Shift gear was not engaging then I noticed the knob was slightly sticking out so I pushed it back in. The car changed gear then but it happened again a couple days later but this time the knob fell off while I was trying to push it back in. Brought to the dealers for inspection in September within a week after the problem started.

While driving on highway I got below messages “Safety Functions are limited radar block warning message” Warning message went away after 15 minutes but then “Stop Vehicle Check Power Supply” warning message appeared and vehicle slowed on highway and stopped after 2 miles. Dealer replaced ICCU and Fuse that controls high voltage (charges 12v battery from main battery).

When driving for a distance at higher speeds, power will suddenly drop to the zero point btw acceleration and regeneration. You can feel the car start to drag as the power drops. If you press hard on the accelerator to stop it from slowing, it will suddenly jump forward.

The car started turning to the right on the freeway. Suddenly, alarm started going off and acceleration diminished.