Hyundai Ioniq 6 Engine Problems

To date, our experience driving the 2024 Hyundai Ioniq 6 has been a total "NIGHTMARE." We've had 2 "TERRIFYING ACCIDENTS" within the first 6 months of leasing this vehicle, Both caused by "Unintended Acceleration Issues," the car "rando...

In November of 2025 the vehicle displayed a "Check Eletrical System" error message. Shortly thereafter the vehicle decelerated to under 10mph as we were turning into traffic. We were able to drive it home (less than 1mi away) and then ca...

I was pulling into a parking spot and my vehicle suddenly lurch forward, and I had to slam on the brakes quickly, scraping the front of the curb. I checked there was no warning lights. I checked the floor mat, and this was not impeding t...

"While traveling in fast-moving traffic, my 2025 Hyundai IONIQ 6 suffered a catastrophic electrical system failure and an immediate loss of motive power. The vehicle instantly entered a 'limp mode' and dropped to a maximum speed of 11 mp...

The fuel door/charge door would not open. Conditions were such that I was safe and had sufficient range without charging, but were I farther from home this could have left me stranded. The problem has not been confirmed by a dealer, othe...

ICCU failed. The car suddenly decelerated from 40mph to 25mph or less with no warning. The ICCU is confirmed to be an issue for Hyundai. I had the software update to fix the problem in 2025. It is currently at the dealership in Fort Mill...

Driving 65 on the highway, the ICCU popped and died and the car immediately went into slow mode and decreased to 20mph in traffic in the snow. It displayed a message to pull over immediately and check the power system.

While driving "check electrical system" warning appeared and vehicle went to limp mode limited to 20mph while on a 40mph roadway. Drove an additional few miles to try and reach home and vehicles completely died, no power. Towed to dealer...

The iccu failed. The car went into check power mode the. Into slow mode then died on the highway. Hard to ah e it jumped to take it to the dealership only to find out the 12v and iccu died

ICCU SHORTED AND BLEW FUSE AFTER CHARGING. Shut off driving down the road.

The ICCU on my 2023 Hyundai Ioniq 6 failed on December 5, 2025 after 19,616 miles. Luckily, the car was parked in my driveway when this occurred. If the car was in motion when the ICCU failure occurred it would have been very dangerous. ...

When driving the instrument panel displayed a warning message of electrical problem and stop the vehicle. BlueLink displayed failure code P1A9096 indicating ICCVU failure. Drove vehicle to local dealer where the ICCU/fuse was replaced.