While driving the vehicle on a local road at around 40 mph, check electrical system light came on and I heard a pop sound behind me. The vehicle would suddenly go no faster than 30 mph. Upon further driving, for additional quarter mile, it would drive no faster than 12 mph. I was able to very slowly drive it 1.5 mi back home. On…
Read full complaint
While driving the vehicle on a local road at around 40 mph, check electrical system light came on and I heard a pop sound behind me. The vehicle would suddenly go no faster than 30 mph. Upon further driving, for additional quarter mile, it would drive no faster than 12 mph. I was able to very slowly drive it 1.5 mi back home. Once I arrive home, the vehicle was no longer operational. I confirmed that the 12-volt battery was at an extremely low charge and having the vehicle on would not charge the 12 volt battery. I believe the ICCU failed. I am waiting for Hyundai to further diagnose this.
NHTSA ODI #11643023
Mileage unknown · Feb 15, 2025
Electrical System
The 12v battery had zero energy after an overnight charge of the HV battery. The car was driven yesterday for 400 miles and three DC charge events. The car was plugged into my level 2 charger at 11 pm and it charged the HV battery to 100% overnight. Today, I was able to unlock the car electrically, but that appeared to be the…
Read full complaint
The 12v battery had zero energy after an overnight charge of the HV battery. The car was driven yesterday for 400 miles and three DC charge events. The car was plugged into my level 2 charger at 11 pm and it charged the HV battery to 100% overnight. Today, I was able to unlock the car electrically, but that appeared to be the last action the 12v battery could perform. All displays were dark, I could not start the car, and the emergency flashers would not work. The HV battery was at 100% from the overnight level 2 charge because the indicator lights by the charger were all lit and when I applied a jump pack to the 12v battery, the dash indicated 100% battery level. I was able to put the car in neutral by applying the jump pack to the 12v battery so the car could be pulled up the flatbed tow truck. This car has had all recalls performed. Please open a new investigation regarding the ICCU failure because it is clear from the data that Hyundai has not resolved the problem.
NHTSA ODI #11642879
Mileage unknown · Feb 14, 2025
Electrical System
My vehicle will not charge with my Chargepoint Home Charger. It only charges on a DC High capacity charger. I have completed all of the recalls at the dealership where I purchased the car. The service manager told me the vehicle is unsafe to drive. It has been at the dealership for two weeks while waiting for a backordered ICCU.…
Read full complaint
My vehicle will not charge with my Chargepoint Home Charger. It only charges on a DC High capacity charger. I have completed all of the recalls at the dealership where I purchased the car. The service manager told me the vehicle is unsafe to drive. It has been at the dealership for two weeks while waiting for a backordered ICCU. The repair will take place upon receipt of the part. I have no faith that the repair will work. In any case I am now afraid to drive the vehicle even if the dealer says it is repaired.
NHTSA ODI #11642790
Mileage unknown · Feb 14, 2025
Electrical SystemEngine
Have had 2-12v battery issues and now an ICCU failure with about 28 days at the dealership with no parts to repair. Seems to a common issue popping up
NHTSA ODI #11642666
Mileage unknown · Feb 10, 2025
Electrical SystemEnginePower Train
Car stopped driving. got a check power systems error and car went into limp mode then stopped altogether
NHTSA ODI #11641623
Mileage unknown · Feb 3, 2025
Electrical SystemFuel/propulsion System
There is a known issue with the ICCU fuse. Mine blew this morning while driving and vehicle went into limp mode. Max speed is 20 mph and this is not safe on the highway. Vehicle completely died because the 12V can’t be charged with the blown fuse.
I was pulling into my driveway and I heard a "clunk" and then an error appeared on the dashboard saying "Check electric vehicle system." My 12V battery then died. After recharging the 12V battery with an external charger, the "Check electric vehicle system" message came up again when I started the car, and I could only drive a…
Read full complaint
I was pulling into my driveway and I heard a "clunk" and then an error appeared on the dashboard saying "Check electric vehicle system." My 12V battery then died. After recharging the 12V battery with an external charger, the "Check electric vehicle system" message came up again when I started the car, and I could only drive a block or so before another message on the dashboard said "Stop vehicle and check power supply." I had the vehicle towed to a Hyundai dealer where it is waiting for them to diagnose the problem. I had all of the ICCU software update recalls performed on the vehicle before this latest problem occurred.
NHTSA ODI #11640219
Mileage unknown · Jan 30, 2025
Electrical SystemFuel/propulsion System
This car has had several recalls. On 12/9/24 I brought it to dealer re the ICCU update. Apparently what was done was just a software update. On 1/8/25 while driving 50 mph, the car suddenly lost power in traffic. Flat bedded to the dealer, they had to replace the ICCU. Todays Consumer Reports states that the ICCU recall was to …
Read full complaint
This car has had several recalls. On 12/9/24 I brought it to dealer re the ICCU update. Apparently what was done was just a software update. On 1/8/25 while driving 50 mph, the car suddenly lost power in traffic. Flat bedded to the dealer, they had to replace the ICCU. Todays Consumer Reports states that the ICCU recall was to replace the ICCU. Clearly the software update or check FAILED, putting me and other motorists at risk that night. I always thought a recall was a repair/replace situation, not an update/check situation. Being told by the service mgr that after all, it's a $3000 part, so if it's OK they don't just replace it. Huh? What? Not replacing it as a recalled problem is a problem. Their software update failed clearly, and now I'm afraid to use the car other than locally. The warning lamps came on only as soon as power was lost and slimply said "check electrical system". No warning BEFORE the event. I think the manufacturer's solution is a non solution, ineffective and dangerous to the motorists. In addition, I got the 4 or 5 recalls already on this car I've had for under 2 years now from my insurance company, not from Hyundai. What's with that? I would be happy to speak with someone about this. I've called the manufacturer and they read to me off of a script.
NHTSA ODI #11639771
Mileage unknown · Jan 25, 2025
Electrical System
After an ICCU recall was mitigated, vehicle charging failed before achieving requested charge level. I asked for 80% and I noticed that it only charged to 72%. After driving for a few minutes, vehicle appeared to enter limp mode and then the 12 volt battery died disabling the vehicle. I had to provide an external 12 volts in ord…
Read full complaint
After an ICCU recall was mitigated, vehicle charging failed before achieving requested charge level. I asked for 80% and I noticed that it only charged to 72%. After driving for a few minutes, vehicle appeared to enter limp mode and then the 12 volt battery died disabling the vehicle. I had to provide an external 12 volts in order to get the vehicle back into my garage so I could notify the dealership. Dealership indicated it would be about 6 weeks before The car could be diagnosed, let alone fixed.
NHTSA ODI #11638544
Mileage unknown · Jan 20, 2025
Electrical System
iccu failure. Hyundai may be trying to hide data as they are not processing this as a recall but just as a warranty service. battery light Turner on and car went on a crawl mode. I had the car towed to dealer and they confirmed it needed a new iccu. my new 3 month 12v. battery was ruined and they refused to replace as it was not…
Read full complaint
iccu failure. Hyundai may be trying to hide data as they are not processing this as a recall but just as a warranty service. battery light Turner on and car went on a crawl mode. I had the car towed to dealer and they confirmed it needed a new iccu. my new 3 month 12v. battery was ruined and they refused to replace as it was not from factory. this is my second 12v battery in one year. after replacing the iccu, the fuse blew. please see that hyundai is not hiding crucial data from the public
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.
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.
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.
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.
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.
Hyundai Motor America (Hyundai) is recalling certain 2023 IONIQ 5, IONIQ 6, and Genesis GV60 vehicles. The rear inner driveshaft may have been improperly heat-treated, allowing it to break under load and resulting in a loss of drive power.
Consequence & remedy
Consequence: A loss of drive power increases the risk of a crash.
Remedy: Dealers will replace the rear inner driveshaft, free of charge. Owner notification letters were mailed March 29, 2024. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's numbers for this recall are 253(H), 017G(G).
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
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.
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.
2023 Hyundai Ioniq 5 Problems, Complaints & Recalls | Skip That Year
Illustration