2022 HYUNDAI IONIQ 5 Complaints

While charging at a level 2 charger (6 kW) the car stop charging at 61% for no apparent reason. I was unable to restart charging. Within 2-3 minutes of starting the car and driving, received a warning to “check the vehicle electrical system” and then within another minute or two, another warning to “stop vehicle and check power supply.” I was traveling under 20 mph the entire time.

This vehicle is in for its second replacement of the ICCU unit. The first was on March 2023,

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. Followed up twice now with no update as to when it will be fixed, I was told they will need to order part and that the entire shift gear will need to be replaced. They didn’t seem to be concerned about the safety of driving the vehicle around meantime. My husband used my car for a long trip while i was out of the country and he said the shift gear fell again. If it gets loose the gear does not engage.

Was charging the car at home in my garage when the charging session stopped. Opened the door and smelled electrical burning. Was able to put the car in neutral and push it out onto my driveway, fearing that an electrical fire could be disastrous. Called Hyundai roadside assistance and they had it towed to the closest dealership that can work on EV's (35 miles away). No report yet, but I'm pretty sure it's an ICCU failure.

3rd ICCU failure. Was Driving and went into limp turtle mode. Was in a dangerous area for it to happen and took a while to get to a safe place.

The car stopped both Level 1 and 2 charging. But Level 3 charging worked. When it stopped in the middle of Level 2 charging, it tripped my circuit and bricked my Juicebix Level 2 charger. Hyundai replaced the ICCU.

The contact owns a 2022 Hyundai Ioniq 5. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V868000 (Electrical System); however, the repair failed to prevent a failure from occurring shortly afterwards. The contact stated that while driving at 55 MPH, the vehicle was rattling abnormally. The vehicle was taken back to the same local dealer where it was diagnosed, and determined that all four tires needed to be replaced. The four tires were replaced. In addition, the contact stated that while driving at 35 MPH, the instrument panel abnormally illuminated. The vehicle was towed to the local dealer where the vehicle was originally purchased. The vehicle was later towed back to the same local dealer and diagnosed with a leak that contaminated the rear inverter. The vehicle was not repaired due to the costs and the warranty being invalid. The manufacturer was made aware of the failure. The failure mileage was approximately 132,000.

I plugged the car into our Juicebox charger and waited for the car to say “charging scheduled” before I walked away. My husband didn’t realize I plugged in and managed to back out of the garage, ripping the charger from the car. We need to buy a new charger now. We understand the car should never move if the charger is connected.

I have had all recall updates on the car including a recent one on 10/13/2025. Turned on the heater on the first cold night in Dallas this fall and got the engine warning light. Checked the ODB and code was P1A90(96). I was able to drive it to the dealer with a 40 mph max speed. The funny thing is my ICCU has already been replaced under warranty once like 16 months ago, so it seems the replacement parts aren't much better than the original. Dealer confirmed it is an ICCU failure and I'm now waiting on the part. Hyundai has NOT fixed this ICCU problem even when they replace with a new ICCU. Someone needs to hold them accountable for finding a real fix.

On November 29 2025 my 2022 Hyundai Ioniq 5 with 49000 miles was warming up in the driveway. I heard a pop sound from the back seat like a soda can being opened (or a fuse blowing). Immediately afterwards warning lights appeared on the dash saying "Check Electrical System." The vehicle lost power to accelerate and could not be driven effectively. After a few moments, another error saying "Power is Limited" appeared. This could have happened on the roadway which would have been hazardous to myself and other drivers. The car is scheduled to be diagnosed next week by Simmons Rockwell Hyundai in Elmira, NY. These symptoms are similar to the hundreds of other reports of ICCU failures in this car and similar models. On Sept 10, 2025 the car was previously issued software updates to the ICCU software , which were required under NHTSA Recall Number 24V868000. If this problem is proven to be an ICCU failure, the experience with this car is an example of the 2025 software update failing to prevent the ICCU Failure. I request swift action from the NHTSA to compel Hyundai to implement a permanent fix for my vehicle and all other afflicted models in order to make Americas roadways safe again. Until then, everyone should be extra careful when driving behind a Hyundai Ioniq, 5 because it is at risk of dying and coming to a complete stop at any moment. Hyundai is a large corporation and has the resources and technology to fix this, but they have not done so, despite there being more than 300 complaints to the NHTSA about these cars at the time of this writing.