NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
176 reportsClear category filterMileage unknown · Apr 7, 2025
Electrical System
Car just died in the middle of a 3 lanes highway. It was the ICCU issue, barely any warning to stop and then when it died, no light, 4 way flasher or anything to communicate to other drivers about our disabled vehicle. It was 3:30 am in the morning, had to call Colorado Highway Patrol to come and help out while we waited for the…
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Car just died in the middle of a 3 lanes highway. It was the ICCU issue, barely any warning to stop and then when it died, no light, 4 way flasher or anything to communicate to other drivers about our disabled vehicle. It was 3:30 am in the morning, had to call Colorado Highway Patrol to come and help out while we waited for the tow truck. We found reports of the fail ICCU, this is something that can put any family in a very unsafe situation.
NHTSA ODI #11653324
Mileage unknown · Apr 6, 2025
Electrical SystemPower Train
Error message indicate loss of charge capacity. Car slowed down, with enough range to pull off the road. Dealer indicates the integrated charge control unit (ICCU) failed, and quit charging the 12 volt system. Waiting for parts (1 month so far). Seems like the same issue reported under NHTSA recall 272 for the Ioniq 5 Does Hyu…
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Error message indicate loss of charge capacity. Car slowed down, with enough range to pull off the road. Dealer indicates the integrated charge control unit (ICCU) failed, and quit charging the 12 volt system. Waiting for parts (1 month so far). Seems like the same issue reported under NHTSA recall 272 for the Ioniq 5 Does Hyundai have a list of failed ICCU’s, and whether there might be a batch of these units that are failing, or is this just a random occurrence?
NHTSA ODI #11653074
Mileage unknown · Apr 3, 2025
Electrical SystemPower TrainVehicle Speed Control
The Integrated Charging Control Unit (ICCU) failed while I was driving to work. I was on the highway in the middle of a blizzard and the "Check Electric Vehicle Systems" warning popped up on my dash. It then when into a turtle mode and my car would no longer go above 15 - 20 mph. I had to exit the freeway very abruptly because…
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The Integrated Charging Control Unit (ICCU) failed while I was driving to work. I was on the highway in the middle of a blizzard and the "Check Electric Vehicle Systems" warning popped up on my dash. It then when into a turtle mode and my car would no longer go above 15 - 20 mph. I had to exit the freeway very abruptly because my speed was dropping quickly. It was already extremely dangerous driving that day, this just added on top of it. It is available for inspection, it's been sitting at my dealership since March 6th because the ICCU is back ordered and there is no ETA when one will become available. The dealership has inspected and confirmed it is a faulty ICCU. There were no other problems with the car until the warning appeared on the dash. The ICCU has had 3 manufacturer recalls for the ICCU previously. Which I have gone in to the dealership for.
NHTSA ODI #11652688
Mileage unknown · Mar 31, 2025
Electrical SystemFuel/propulsion SystemVehicle Speed Control
ICCU failed while driving. Causing the car to dangerously decelerate with little to no warning. The car then bricked itself on the side of the road. Diagnoses is a failed ICCU. This failure was insanely dangerous as the car lost all power and would not accelerate.
NHTSA ODI #11651827
11,000 miles · Mar 26, 2025
Electrical SystemEngine
The contact owns a 2024 Hyundai Ioniq 5. The contact stated that while his wife was driving approximately 30 MPH, the vehicle started losing motive power. The contact’s wife depressed the accelerator pedal; however, the vehicle shifted to first or second gear and failed to accelerate above 20 MPH. The contact stated there were n…
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The contact owns a 2024 Hyundai Ioniq 5. The contact stated that while his wife was driving approximately 30 MPH, the vehicle started losing motive power. The contact’s wife depressed the accelerator pedal; however, the vehicle shifted to first or second gear and failed to accelerate above 20 MPH. The contact stated there were no warnings illuminated. The contact stated that his wife pulled into a parking lot and the vehicle lost electrical power and was unable to be restarted. The contact had the vehicle towed to a dealer. The dealer diagnosed the vehicle and informed the contact that the vehicle had had a failure of a part that was on a national back order. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 11,000.
NHTSA ODI #11650776
Mileage unknown · Mar 24, 2025
Electrical SystemEngineVehicle Speed Control
On March 22, 2025, our 2022 Hyundai Ioniq 5 suffered a sudden, complete loss of power while driving at night, after receiving Hyundai’s recall service in January. While driving on city roads, the car displayed “Check Battery” errors despite the main EV battery showing ~75% charge. After stopping, we had AAA install a new 12V bat…
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On March 22, 2025, our 2022 Hyundai Ioniq 5 suffered a sudden, complete loss of power while driving at night, after receiving Hyundai’s recall service in January. While driving on city roads, the car displayed “Check Battery” errors despite the main EV battery showing ~75% charge. After stopping, we had AAA install a new 12V battery, which did not resolve the issue. Minutes later, while crossing a Y-shaped highway interchange, the car lost the ability to accelerate, leaving us stranded in a dangerous area. Hyundai Roadside Assistance gave an 89-minute ETA and failed to dispatch a tow capable of transporting our family of three. We were forced to call our insurance to tow the vehicle to safety. The car is now inoperable at a dealership. Hyundai has not followed up. This is a major safety concern — involving either the 12V system or software post-recall — and could impact other vehicles. Photos, screenshots, and documentation are available.
NHTSA ODI #11650176
Mileage unknown · Feb 25, 2025
Electrical SystemPower Train
About 2 minutes after I started driving, I got a "Stop Vehicle and Check Power Supply" warning. The car slower to about 20 mph and would not go any faster. After returning home, I had the car towed to the dealership. Hyundai said that the ICCU unit failed. This was days after the same dealer performed recall work that was su…
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About 2 minutes after I started driving, I got a "Stop Vehicle and Check Power Supply" warning. The car slower to about 20 mph and would not go any faster. After returning home, I had the car towed to the dealership. Hyundai said that the ICCU unit failed. This was days after the same dealer performed recall work that was supposed to address ICCU issues.
NHTSA ODI #11644857
Mileage unknown · Feb 19, 2025
Electrical System
Car had a warning Check Electrical System and the 12volt drained. ICCU Failed car undrivable.
NHTSA ODI #11643656
Mileage unknown · Feb 14, 2025
Electrical System
ICCU failure
NHTSA ODI #11642733
Mileage unknown · Feb 3, 2025
Electrical SystemFuel/propulsion SystemPower Train
Started car and proceeded to drive to work. 1 mile from home, heard a "pop" noise and the car displayed "Check Electric Vehicle System" warning and went into a "turtle" mode that limited speed. Luckily I was on a side street and had not yet made the turn onto the main highway or it may have obstructed traffic or resulted in a c…
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Started car and proceeded to drive to work. 1 mile from home, heard a "pop" noise and the car displayed "Check Electric Vehicle System" warning and went into a "turtle" mode that limited speed. Luckily I was on a side street and had not yet made the turn onto the main highway or it may have obstructed traffic or resulted in a crash. I was able to return home and have the car towed back to a Hyundai dealer for diagnosis and repair. The dealer identified the issue as the ICCU fuse and ICCU itself that needed replacing. All previous recalls and software updates were completed, including the latest ICCU recall (272?) which was completed on December 3. There have now been multiple software updates and recalls targeting this part, but it still resulted in the vehicle losing power and being inoperable.
NHTSA ODI #11640396
Official recalls
3Jul 2, 2026
Hyundai Motor America (Hyundai) is recalling certain 2023-2024 Ioniq 5 vehicles. The high voltage battery cells may contain misaligned electrodes, which can lead to a fire while parked or driving.
Consequence & remedy
Consequence: A fire increases the risk of injury.
Remedy: Owners are advised to park outside and away from structures and limit their charge to a maximum of 80% until the recall repair is complete. Dealers will replace the high voltage battery system assembly, free of charge. Owner notification letters are expected to be mailed August 31, 2026. Owners may contact Hyundai's customer service at 855-371-9460. Hyundai's number for this recall is 305. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on July 3, 2026.
Nov 18, 2024
Hyundai Motor America (Hyundai) is recalling certain 2022-2024 IONIQ 5, 2023-2025 IONIQ 6, Genesis GV60, Genesis GV70 "Electrified," and Genesis G80 "Electrified" vehicles. The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-volt battery, which can result in a loss of drive power.
Consequence & remedy
Consequence: A loss of drive power increases the risk of a crash.
Remedy: Dealers will inspect and replace the ICCU and its fuse, as necessary. In addition, dealers will update the ICCU software. All repairs will be performed free of charge. Owner notification letters were mailed December 20, 2024. Owners may contact Hyundai customer service at 1-855-371-9460 or Genesis customer service at 1-844-340-9741. Hyundai's numbers for this recall are 272 (Hyundai) and 025G (Genesis). This recall expands and replaces previous recall number 24V-204. Vehicles previously repaired under recall 24V-204 will need to have the new remedy completed.
Additional source detail variants (2)
Electrical System:propulsion System:charging:module:software
Hyundai Motor America (Hyundai) is recalling certain 2022-2024 IONIQ 5, 2023-2025 IONIQ 6, Genesis GV60, Genesis GV70 "Electrified," and Genesis G80 "Electrified" vehicles. The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-volt battery, which can result in a loss of drive power.
Consequence: A loss of drive power increases the risk of a crash.
Remedy: Dealers will inspect and replace the ICCU and its fuse, as necessary. In addition, dealers will update the ICCU software. All repairs will be performed free of charge. Owner notification letters were mailed December 20, 2024. Owners may contact Hyundai customer service at 1-855-371-9460 or Genesis customer service at 1-844-340-9741. Hyundai's numbers for this recall are 272 (Hyundai) and 025G (Genesis). This recall expands and replaces previous recall number 24V-204. Vehicles previously repaired under recall 24V-204 will need to have the new remedy completed.
Electrical SYSTEM:12V/24V/48V Battery
Hyundai Motor America (Hyundai) is recalling certain 2022-2024 IONIQ 5, 2023-2025 IONIQ 6, Genesis GV60, Genesis GV70 "Electrified," and Genesis G80 "Electrified" vehicles. The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-volt battery, which can result in a loss of drive power.
Consequence: A loss of drive power increases the risk of a crash.
Remedy: Dealers will inspect and replace the ICCU and its fuse, as necessary. In addition, dealers will update the ICCU software. All repairs will be performed free of charge. Owner notification letters were mailed December 20, 2024. Owners may contact Hyundai customer service at 1-855-371-9460 or Genesis customer service at 1-844-340-9741. Hyundai's numbers for this recall are 272 (Hyundai) and 025G (Genesis). This recall expands and replaces previous recall number 24V-204. Vehicles previously repaired under recall 24V-204 will need to have the new remedy completed.
Mar 15, 2024
Hyundai Motor America (Hyundai) is recalling certain 2022-2024 IONIQ 5, 2023-2024 IONIQ 6, Genesis GV60, Genesis GV70 "Electrified," and Genesis G80 "Electrified" vehicles. The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-Volt battery, which can result in a loss of drive power.
Consequence & remedy
Consequence: A loss of drive power increases the risk of a crash.
Remedy: This recall is replaced by NHTSA recall number 24V-868. Vehicles already repaired under this recall will need to have the new remedy completed. Dealers will inspect and replace the ICCU and its fuse, as necessary. In addition, dealers will update the ICCU software. All repairs will be performed free of charge. Owner notification letters were mailed April 22, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 257/021G.
Additional source detail variants (2)
Electrical SYSTEM:12V/24V/48V Battery
Hyundai Motor America (Hyundai) is recalling certain 2022-2024 IONIQ 5, 2023-2024 IONIQ 6, Genesis GV60, Genesis GV70 "Electrified," and Genesis G80 "Electrified" vehicles. The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-Volt battery, which can result in a loss of drive power.
Consequence: A loss of drive power increases the risk of a crash.
Remedy: This recall is replaced by NHTSA recall number 24V-868. Vehicles already repaired under this recall will need to have the new remedy completed. Dealers will inspect and replace the ICCU and its fuse, as necessary. In addition, dealers will update the ICCU software. All repairs will be performed free of charge. Owner notification letters were mailed April 22, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 257/021G.
Electrical System:propulsion System:charging:module:software
Hyundai Motor America (Hyundai) is recalling certain 2022-2024 IONIQ 5, 2023-2024 IONIQ 6, Genesis GV60, Genesis GV70 "Electrified," and Genesis G80 "Electrified" vehicles. The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-Volt battery, which can result in a loss of drive power.
Consequence: A loss of drive power increases the risk of a crash.
Remedy: This recall is replaced by NHTSA recall number 24V-868. Vehicles already repaired under this recall will need to have the new remedy completed. Dealers will inspect and replace the ICCU and its fuse, as necessary. In addition, dealers will update the ICCU software. All repairs will be performed free of charge. Owner notification letters were mailed April 22, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 257/021G.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1PE23011 · Loss Of Motive Power
Opened Jun 8, 2023 · Closed Apr 17, 2024
Status: closed (inferred from source dates) · Electrical SYSTEM:12V/24V/48V Battery; Electrical System:propulsion System:dc/dc Converter
On June 8, 2023, the Office of Defect Investigation (ODI) opened PE23011 to investigate allegations of loss of motor power on model year (MY) 2022 Hyundai Ioniq 5 vehicles. Some consumers reported loss of motor power immediately after a warning lamp illumination or reduction of motive power while the vehicle was in motion. This investigation found that the Integrated Charging Control Unit (ICCU) may be subject to various conditions such as overcurrent, overvoltage induced at the end of charging, and certain thermal loading during operation that can damage its internal components and open the ICCU fuse, resulting in an inability to charge the 12-volt battery. The vehicle could eventually lose all motive power, increasing the risk of a crash. In July 2023, Hyundai issued a service campaign to address certain MY 2022-2023 Ioniq 5 and MY 2023 Ioniq 6 vehicles that may have low 12V auxiliary battery charging occurrences due to an ICCU fault and may set the DTC P1A9096 “DC/DC Converter Input Voltage Sensor Fault”. On March 15, 2024, Hyundai filed Safety Recall 24V-204 for 98,878 MY 2022-2024 Hyundai Ioniq 5 vehicles and MY 2023-2024 Hyundai Ioniq 6, Genesis GV60, Genesis GV70 “Electrified” and Genesis G80 “Electrified” vehicles. The recall remedy provides an inspection, and if necessary, a replacement of the ICCU and the associated fuse. The ICCU software reduces the risk of overcurrent and implements voltage peak reduction at the end of EV battery charging. The recall also includes a software update that revises the electric water pump operational threshold to reduce thermal loading during charging and driving. In view of the recall action being taken by Hyundai, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Additional source detail variants (2)
Electrical SYSTEM:12V/24V/48V Battery
On June 8, 2023, the Office of Defect Investigation (ODI) opened PE23011 to investigate allegations of loss of motor power on model year (MY) 2022 Hyundai Ioniq 5 vehicles. Some consumers reported loss of motor power immediately after a warning lamp illumination or reduction of motive power while the vehicle was in motion. This investigation found that the Integrated Charging Control Unit (ICCU) may be subject to various conditions such as overcurrent, overvoltage induced at the end of charging, and certain thermal loading during operation that can damage its internal components and open the ICCU fuse, resulting in an inability to charge the 12-volt battery. The vehicle could eventually lose all motive power, increasing the risk of a crash. In July 2023, Hyundai issued a service campaign to address certain MY 2022-2023 Ioniq 5 and MY 2023 Ioniq 6 vehicles that may have low 12V auxiliary battery charging occurrences due to an ICCU fault and may set the DTC P1A9096 “DC/DC Converter Input Voltage Sensor Fault”. On March 15, 2024, Hyundai filed Safety Recall 24V-204 for 98,878 MY 2022-2024 Hyundai Ioniq 5 vehicles and MY 2023-2024 Hyundai Ioniq 6, Genesis GV60, Genesis GV70 “Electrified” and Genesis G80 “Electrified” vehicles. The recall remedy provides an inspection, and if necessary, a replacement of the ICCU and the associated fuse. The ICCU software reduces the risk of overcurrent and implements voltage peak reduction at the end of EV battery charging. The recall also includes a software update that revises the electric water pump operational threshold to reduce thermal loading during charging and driving. In view of the recall action being taken by Hyundai, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Electrical System:propulsion System:dc/dc Converter
On June 8, 2023, the Office of Defect Investigation (ODI) opened PE23011 to investigate allegations of loss of motor power on model year (MY) 2022 Hyundai Ioniq 5 vehicles. Some consumers reported loss of motor power immediately after a warning lamp illumination or reduction of motive power while the vehicle was in motion. This investigation found that the Integrated Charging Control Unit (ICCU) may be subject to various conditions such as overcurrent, overvoltage induced at the end of charging, and certain thermal loading during operation that can damage its internal components and open the ICCU fuse, resulting in an inability to charge the 12-volt battery. The vehicle could eventually lose all motive power, increasing the risk of a crash. In July 2023, Hyundai issued a service campaign to address certain MY 2022-2023 Ioniq 5 and MY 2023 Ioniq 6 vehicles that may have low 12V auxiliary battery charging occurrences due to an ICCU fault and may set the DTC P1A9096 “DC/DC Converter Input Voltage Sensor Fault”. On March 15, 2024, Hyundai filed Safety Recall 24V-204 for 98,878 MY 2022-2024 Hyundai Ioniq 5 vehicles and MY 2023-2024 Hyundai Ioniq 6, Genesis GV60, Genesis GV70 “Electrified” and Genesis G80 “Electrified” vehicles. The recall remedy provides an inspection, and if necessary, a replacement of the ICCU and the associated fuse. The ICCU software reduces the risk of overcurrent and implements voltage peak reduction at the end of EV battery charging. The recall also includes a software update that revises the electric water pump operational threshold to reduce thermal loading during charging and driving. In view of the recall action being taken by Hyundai, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
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