2025 Hyundai Ioniq 5 Engine Problems

“I have had my new car only two weeks and have driven only 500 miles. Yesterday, while driving on a freeway at constant 65 mph speed, I suddenly experienced COMPLETE POWER FAILURE. I coasted across three lanes of heavy traffic and came to a stop on the shoulder. There were no warning lights on the dashboard. I turned the car off, turned it on again, and the car drove normally. I checked on my Hyundai app and it said under Vehicle Health that all systems were normal. …”

“Received the following warning while driving my 2025 Hyundai Ioniq 5 SEL on the highway on X-mas night: Battery Overheated! Pull over safely and leave the vehicle. Within a few miles, was able to pull over at the nearest exit and park the car off the highway. Then turned the car back on to see if the error message was still present and drove another mile, only to get the same error message. As soon as I pulled into an empty parking lot, the car lost power and was not functioning (ie unable to accelerate). …”

“I was driving on the CA 405 SB, Long Beach, at about 6 PM 9/19/25. All of a sudden this loud screeching noise started. It was so loud that I pulled off on the left shoulder instead of driving to the first exit. I assumed I was going to find something wrapped around an axle or wheel or dragging from the ground. There was nothing hanging from the car, so I got back onto the freeway and parking the car ASAP did a more thorough inspection of the car. I got on my hands and knees looked with a the flashlight And saw nothing. …”

“When I started the car at 10pm , a loud pop was heard and warning lights on the dashboard indicated an electrical problem. I turned off the radio and anything extra that could use up power; during the next 45 minutes I took surface streets instead of the freeway to drive 22 miles back home and speed was limited to 40 mph. The next day the same warning lights were on the dashboard and speed was limited to 20mph; car lost power after 1 block. Car was towed to the dealer, where an ICCU failure and blown fuse in the engine was diagnosed by dealership and replaced.”

“I heard a loud popped sound from the back of my car while driving home. The car lost power and eventually died on the street. The war displacy came on to tell em to check electrical system. I originally bought th car from Capitol Huyndai in San Jose on September 2025 and it has 5992 miles. I towed the car to Dublin Hyundai for repair and confirmed the DTCP1A9096 for ICCU computer failing to charge the 12 v battery. It was a well known recall . I do not have any update on the repair since 8/25/26. I worry about my safety because the car can lose power while driving”