2022 Hyundai Ioniq 5 — Known Issues & Recalls

Your car made a loud popping sound when you started it, then your dashboard warned you about low 12V power and loss of available power. Within a minute, your car lost all acceleration power while driving, forcing you to pull over safely. The 12V electrical system failed completely, making it difficult to disengage the automatic parking brake for towing. Your dealership diagnosed an ICCU (Integrated Charging Control Unit) failure and replaced it after a 32-day wait for parts and service.

Your Ioniq 5's integrated charge control unit (ICCU) failed, preventing the car from charging with either standard or fast chargers. The service center warned that this failure is unsafe to drive because it could cause sudden loss of power while driving. The ICCU will need to be replaced, but replacement parts are currently on backorder nationwide with wait times of weeks to months.

Your car lost all electrical power while driving on the interstate due to a failure in the integrated charging control unit (ICCU). Hyundai has not been able to resolve this ongoing issue. The problem may require replacement of the ICCU module to restore normal electrical function.

Your car displayed an "electrical error" message and stopped charging at any charging station, causing it to gradually lose power while driving on the highway until it could no longer move. The dealer identified the ICCU (Integrated Charge Control Unit) as the cause and explained that while a previous recall addressed this with a software update, it's only a temporary fix and your vehicle needs a new ICCU unit to resolve the issue permanently.

Your car's onboard charger (ICCU) has failed twice in one year, making the vehicle unable to drive until it's repaired. This component converts power from the charging station to charge your main battery and also keeps your backup 12-volt battery charged. The repair will likely involve replacing or rebuilding the onboard charger unit.

Multiple 12v batteries died within one year of installation; ICCU finally failed at about 3.5 years of ownership. Towed to dealer on January 16, 2026, still no repair as of February 24, 2026.

The car would no longer charge and the dealer said it is due to a faulty ICCU. The dealer said this part is on back order with an indefinite freeze and no ETA. My car has been at the dealership shop since January 29 and Hyundai corporate has not been helpful when I escalated to them.

The ICCU failed. The car is at the dealership, availability of the failed part is unknown. The vehicle was no longer able to charge the battery.

The ICCU unit failed, making this electric vehicle unchargeable and therefore undriveable. This is the second time this has happened on this vehicle and the wait for the part was 8 plus weeks. This is a nationwide issue.

Your car lost power while driving and couldn't go faster than 20 mph, which was caused by a failure in the Integrated Charging Control Unit (ICCU). This sudden loss of propulsion could have resulted in a serious accident. The repair will likely involve replacing or reprogramming the ICCU module.

While driving my IONIQ 5 it flashed a power limited warning, went into turtle mode, and then experienced a total loss of power. The 12V battery was dead.

Your car's electrical control unit (ICCU) failed while driving at 30 mph, shortly after being fully charged and unplugged. You heard a sudden pop, and your car displayed a warning that an electrical fault required immediate shutdown. Your vehicle went into limp mode and wouldn't accelerate past 25 mph.

Your car's charging system (ICCU) stopped working without any warning lights or error messages, leaving you unable to charge using Level 2 charging 300 miles from home. While Level 3 fast charging still worked, this component can also affect the car's ability to drive if it fails completely. Your dealership replaced the ICCU to resolve the issue.

Your car's integrated circuit control unit (ICCU) failed, causing a fuse to blow and putting your vehicle into low power mode while you were driving. You were able to safely pull over and have the car towed to a dealership for repairs. The fix will likely involve replacing the ICCU fuse and potentially the control unit itself if it's damaged.

ICCU failed at ~27,000 miles. Loud pop came from the under the vehicle. Afterwards, car could only accelerate to 35 MPH.

Your car lost all power while you were driving on January 19, 2026, and had to be towed to the dealership. The dealer found that the ICCU (Integrated Charging Control Unit) had failed and needed replacement, but the part was backordered, leaving your car unable to run for 6 weeks while waiting for the replacement part to arrive and be installed.

Your 2022 Ioniq 5 has been at a Hyundai dealership for over six months waiting for a replacement high-voltage battery, which you were told wouldn't arrive until January 2026 at the earliest. You've made five monthly payments totaling $2,569.60 on a vehicle you've never driven, with another payment due soon. Additionally, Hyundai's records show a recall (Recall 272) for an ICCU software update and fuse replacement as completed in October 2025, but your vehicle was still at the dealership awaiting parts at that time, raising questions about whether the recall was actually performed. The repair will require installation of a replacement high-voltage battery pack and potentially related electrical system updates.

I was on the freeway and went into limp mode and almost got into a traffic accident. My ICCU unit failed after two recalls on it.

Your car's Integrated Charge Control Unit (ICCU) has failed. This component manages the electrical system and power delivery in your vehicle. The repair will likely involve replacing or reprogramming the ICCU module.

There was a failure of the Integrated Charging Control Unit (ICCU) on my Hyundai Ioniq 5. We were driving home from the beach, approximately 1 mile away. When I turned the car on and started driving home, the dashboard lit up with an error and the vehicle turned on the "turtle" mode, which limited my speed.