2024 Hyundai Ioniq 5 — Known Issues & Recalls

While reversing out of a parking spot, your car's ICCU (Integrated Charging Control Unit) and its fuse suddenly blew, causing a loud pop noise from the rear passenger side and a "check electric vehicle system" warning on your dashboard. Your car then shut down completely because the ICCU is responsible for charging the 12V battery that powers essential functions. Your service center confirmed the ICCU failure through diagnostic testing. The fix will likely involve replacing the ICCU unit and its fuse.

Your car's Integrated Charging Control Unit (ICCU) has failed twice, causing the vehicle to suddenly lose all power while driving. This is a known issue that Hyundai has not adequately addressed. The repair will likely involve replacing the ICCU module and checking related electrical connections.

Your Ioniq 5 suddenly lost all power while driving in the center lane at night, creating a traffic hazard. The dashboard warning showed "12V battery voltage low. Stop safely" — the same issue that was supposed to be fixed under a previous recall. Your vehicle has been at the dealership for repair for over a month. The fix will likely involve software updates to the Integrated Charging Control Unit (ICCU) and inspection or replacement of the 12V battery and related fuses.

Your car made a loud popping sound, then entered limp mode with electrical warnings appearing on the dashboard. After this, your vehicle lost the ability to charge. The integrated charge control unit (ICCU) appears to have failed and needs replacement.

While driving at 25 mph, you heard a loud pop from the rear of your car followed by a dashboard warning message telling you to stop and check the power supply. This sudden electrical failure left you stranded, and the dealer diagnosed it as an ICCU (Integrated Charge Control Unit) failure with no prior warning. The repair will likely involve replacing the ICCU module, which manages power distribution in your electric vehicle.

While driving in a parking lot, you heard a popping sound and your Ioniq 5 suddenly lurched and stopped with a "check electrical system" warning on the dashboard. When you tried to restart it at the dealer, the car lurched again and displayed a turtle icon warning followed by a "check 12V battery" message, after which the car wouldn't move. The issue appears to be related to the 12-volt electrical system or battery.

While driving, you heard a popping sound and lost the ability to drive at normal speeds. The repair shop diagnosed this as an ICCU (Integrated Charging Control Unit) failure. Replacing the ICCU module will be necessary to restore normal driving performance.

Your car's integrated charging control unit (ICCU) may fail while you're driving. This component manages your vehicle's charging system, so a failure could leave you without power or affect your car's ability to charge properly.

Your vehicle's ICCU (Integrated Charging Control Unit) has failed even though it was already repaired under a dealer recall. The same component failed again months after the previous repair, suggesting the fix may not have been permanent.

Your car's Integrated Charging Control Unit (ICCU) has failed, which controls the charging system for your electric vehicle. This means your car may not charge properly or at all when plugged in. You'll likely need to have the ICCU replaced by a technician.

Your car displayed multiple "Check Vehicle Electric Systems" warnings while driving, then when you restarted it and shifted into drive, you heard a pop from underneath and the car entered a limited "Turtle Mode" with warning lights. The vehicle then completely lost power, leaving you stranded in freezing weather without the ability to lock the doors or open the trunk. The dealership diagnosed the problem as a faulty ICCU (Integrated Charging Control Unit) that required replacement.

Your car's Integrated Charging Control Unit (ICCU) has failed, which controls the charging system. This appears to be a recurring issue that Hyundai hasn't fully resolved yet. The fix will likely require replacing the ICCU module with a newer version or software update.

Your car's integrated charging control unit (ICCU) failed, causing a battery warning light to appear several hours before the vehicle stopped working completely. Your car became inoperable and required towing to a service facility. The ICCU will likely need to be replaced or repaired by a technician.

Your car lost all power while driving and went into a reduced-power "turtle mode," then displayed a message telling you to stop immediately and have the vehicle towed. After diagnosis, the dealership identified a failure in the Integrated Charging Control Unit (ICCU), which manages your car's battery charging system. Fixing this will likely require replacing the ICCU module at the dealership.

Your car won't start and is completely unresponsive — the doors won't unlock and the charge port door is stuck closed. Even after manually unlocking the car, all electrical systems are dead inside. You had the ICCU (Integrated Charging Control Unit) replaced under warranty, but the same problem happened again just one week later. The fix will likely involve diagnosing and replacing the ICCU or related electrical components that control the car's power systems.

Your car suddenly loses power while driving, leaving you stranded on the road. This is a serious drivability issue that requires immediate diagnosis and repair of your fuel or propulsion system.

Your car's 12-volt battery suddenly died while you were driving, causing the vehicle to stop completely with no power and no tail lights working. This created a dangerous situation on the road since other drivers couldn't see your vehicle and you were stranded for an hour waiting for a tow truck. The car was able to run again after a jump-start, but there were no warning signs before the failure happened. The fix will likely involve replacing the 12V battery and having the electrical charging system inspected to prevent this from happening again.

Your car displayed a "Stop vehicle and check power supply" warning while driving and then became completely inoperable, requiring a tow to the dealer for an Integrated Charge Control Unit (ICCU) replacement. The owner reports that a previous recall did not resolve this issue and that multiple Ioniq 5 vehicles continue to experience sudden power loss on the road.

While merging onto the highway, your car displayed an electrical system warning and shut down completely within 20 minutes, requiring a tow to the dealer. The dealer identified that the Integrated Cluster Control Unit (ICCU) needs to be replaced. This sudden loss of power while driving poses a serious safety risk, especially in heavy traffic or on busy highways.

While driving, your car displayed an electrical system warning, slowed down, and then wouldn't accelerate beyond about 20 mph. The Integrated Charging Control Unit (ICCU), which manages the vehicle's charging and power systems, has stopped working properly and has been confirmed by the dealer as faulty. Fixing this will likely require the dealer to replace or reprogram the ICCU unit.