The 12V system battery failed to keep a charge and the vehicle slowly reduced maximum speed until it fully died causing the car to coast to a stop on a 55MPH highway. At 9,500 miles on the odometer the ICCU has failed. The part is on backorder and my car has been in the shop for three weeks with no estimated completion date. A…
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The 12V system battery failed to keep a charge and the vehicle slowly reduced maximum speed until it fully died causing the car to coast to a stop on a 55MPH highway. At 9,500 miles on the odometer the ICCU has failed. The part is on backorder and my car has been in the shop for three weeks with no estimated completion date. A LOT of IONIQ 5 owners are encountering the ICCU failure.
Main battery failure, can not charge, can not drive car. Warning light(s) on dashboard. High voltage battery needs to be replaced.
NHTSA ODI #11718509
Mileage unknown · Feb 17, 2026
Electrical System
The vehicle experienced a sudden failure of the Integrated Charging Control Unit (ICCU). While driving, a loud "pop" was heard, followed immediately by a "Check Electric Vehicle System" warning on the dashboard. The vehicle then entered "Limp Mode" with significantly reduced propulsion. The 12V battery became depleted, leading t…
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The vehicle experienced a sudden failure of the Integrated Charging Control Unit (ICCU). While driving, a loud "pop" was heard, followed immediately by a "Check Electric Vehicle System" warning on the dashboard. The vehicle then entered "Limp Mode" with significantly reduced propulsion. The 12V battery became depleted, leading to a complete loss of motive power and loss of electronic safety systems, creating a hazardous situation in traffic.
NHTSA ODI #11718412
Mileage unknown · Feb 16, 2026
Electrical System
When putting my car into gear a loud pop noise was heard. The car could not be driven at the point and the instrument cluster mentioned an electrical system failure. The car was towed to the dealer where they confirmed the ICCU unit needed to be replaced. It has been at the dealership since January 8th with little to no communic…
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When putting my car into gear a loud pop noise was heard. The car could not be driven at the point and the instrument cluster mentioned an electrical system failure. The car was towed to the dealer where they confirmed the ICCU unit needed to be replaced. It has been at the dealership since January 8th with little to no communication.
NHTSA ODI #11718331
Mileage unknown · Feb 16, 2026
Electrical SystemSteering
Car battery completely failed on a busy road.
NHTSA ODI #11718283
Mileage unknown · Feb 16, 2026
Electrical System
I heard a pop followed by an alarm notification stating the electrical system had an error. I had started the climate system but the car was parked.
NHTSA ODI #11718239
Mileage unknown · Feb 15, 2026
Electrical System
The ICCU unit failed and I have been without my car for already 3+ weeks
NHTSA ODI #11718060
Mileage unknown · Feb 13, 2026
Electrical SystemPower Train
Vehicle experienced a dashboard alert, "Check electric vehicle system." The car produced an OBD code: P1AD3(00). Upon taking it to the dealer, they determined that the EV required a new high-voltage battery.
NHTSA ODI #11717915
Mileage unknown · Feb 13, 2026
Electrical SystemPower Train
ICCU needs to be replaced.
NHTSA ODI #11717905
Mileage unknown · Feb 12, 2026
Electrical System
The ICCU (Integrated Charging Control Unit) failed with DTC P1A9096 and I was driving at approximately 25-30 MPH on 01/17/2026 at approximately 5:40 pm in approximately 32 degree temperature. The car had just been disconnected from a hardwired Chargepoint Home Flex 11.5 kw 48A Level 2 home charger with a NACS connecter (so no ad…
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The ICCU (Integrated Charging Control Unit) failed with DTC P1A9096 and I was driving at approximately 25-30 MPH on 01/17/2026 at approximately 5:40 pm in approximately 32 degree temperature. The car had just been disconnected from a hardwired Chargepoint Home Flex 11.5 kw 48A Level 2 home charger with a NACS connecter (so no adapters used), though the charging had mainly ended at approximately 5:24 am that same morning (after reaching the preset charging limit of 80% of battery capacity, I believe). That charging session provided 45.572 kWh of energy over approximately 4.5 hours and then the vehicle sat, still plugged in, for approximately 12 more hours until disconnected to drive it. After driving approximately 1-2 minutes on residential streets, I heard a muffled 'pop' sound behind the front seats, and the vehicle dashboard suddenly showed 'check electrical vehicle system' and 'stop vehicle and check power supply'. The vehicle suddenly had limited capabilities, including speed, and at that point gave a limited, unspecified, amount of time to get off of the road to safety. The vehicle is currently with a Hyundai dealer (Hyundai of 110 in Farmingdale, NY) who has since confirmed it was an ICCU failure. They are waiting on a new ICCU, which is on back order. The vehicle had been leased, new, in June of 2025 and after that, was driven approximately 9,506, miles (mostly highway) and never exhibited any sounds, warning lights, control issues, or any other indications that there was any problem or that there would be any sudden problem with the vehicle.
Hyundai Motor America (Hyundai) is recalling certain 2025 Ioniq 5 and 2026 Ioniq 9 vehicles. The fasteners for the rear suspension may loosen and detach, which can result in a loss of vehicle control.
Consequence & remedy
Consequence: A loss of vehicle control increases the risk of a crash.
Remedy: Dealers will inspect and replace the rear suspension fasteners and perform a rear vehicle alignment, as necessary, free of charge. Owner notification letters are expected to be mailed July 17, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 303. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 20, 2026.
Hyundai Motor America (Hyundai) is recalling certain 2025-2026 IONIQ 5 and 2026 IONIQ 9 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
Consequence & remedy
Consequence: An electrical short in the high voltage battery system increases the risk of a fire.
Remedy: Dealers will inspect and tighten the bus bar retention bolts and replace the battery system assembly, as necessary, free of charge. Owner notification letters were mailed April 3, 2026. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 294. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 7, 2026.
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 vehicles. The seat belt retractors for the driver and front passenger seats may not be securely fastened.
Consequence & remedy
Consequence: An improperly secured seat belt retractor may not function properly in a crash, increasing the risk of injury.
Remedy: Dealers will inspect and secure the seat belt retractors, as necessary, free of charge. Owner notification letters were mailed December 30, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 287. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on November 19, 2025.
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 electric vehicles. Certain rear suspension alignment adjustment bolts may have been improperly tightened, which can cause a loss of vehicle stability control.
Consequence & remedy
Consequence: A loss of vehicle stability control increases the risk of a crash.
Remedy: Dealers will replace the adjustment bolts, align the wheels, and replace tires if necessary, free of charge. Owner notification letters were mailed October 10, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 284. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on September 13, 2025.
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 vehicles. The high voltage battery system may contain an improperly tightened bus bar, which can cause a short-circuit.
Consequence & remedy
Consequence: An electrical short in the high voltage battery system increases the risk of a fire.
Remedy: Owners are advised to park their vehicles outside and away from structures until the recall remedy is complete. Dealers will inspect and repair the high voltage battery system, as necessary, free of charge. Owner notification letters were mailed August 25, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 280.
Hyundai Motor America (Hyundai) is recalling certain 2025 Hyundai IONIQ 5 vehicles. The right-side headlight may have an incorrect headlight aim label, which can result in improperly aimed headlights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence & remedy
Consequence: Improperly aimed headlights can result in insufficient illumination of the road, decreasing the driver's visibility and increasing the risk of a crash.
Remedy: Hyundai will mail owners a corrected label with inspection and installation instructions. Owners may bring their vehicle to a dealer for the repair, free of charge. Owner notification letters were mailed July 15, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 279.
Hyundai Motor America (Hyundai) is recalling certain 2025 Hyundai IONIQ 5 "N" vehicles equipped with left-foot braking (LFB) and N e-shift features. The integrated electronic brake (IEB) and vehicle control unit (VCU) software may cause reduced braking performance when LFB is activated. Additionally, the vehicle may continue to accelerate after the pedal is released and the vehicle's N e-shift feature is engaged.
Consequence & remedy
Consequence: Reduced braking performance and unexpected, continued acceleration increase the risk of a crash.
Remedy: Owners are advised not to use the LFB or N e-Shift features until the remedy has been performed. The IEB and VCU software will be updated over-the-air (OTA) or by a dealer, free of charge. Owner notification letters were mailed April 25, 2025. This recall replaces NHTSA recall number 25V-065. Vehicles repaired under the previous recall will need to have the new remedy completed. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 277.
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 EV vehicles. The rear floor wiring harness may contain an open circuit, which can result in the rear side air bag not deploying as intended.
Consequence & remedy
Consequence: A rear side air bag that does not deploy as intended can increase the risk of injury in a crash.
Remedy: Dealers will inspect and replace the rear floor wiring harness, as necessary, free of charge. Owner notification letters were mailed March 12, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 274.
Additional source detail variants (2)
Electrical System:wiring
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 EV vehicles. The rear floor wiring harness may contain an open circuit, which can result in the rear side air bag not deploying as intended.
Consequence: A rear side air bag that does not deploy as intended can increase the risk of injury in a crash.
Remedy: Dealers will inspect and replace the rear floor wiring harness, as necessary, free of charge. Owner notification letters were mailed March 12, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 274.
Air Bags:side/window
Hyundai Motor America (Hyundai) is recalling certain 2025 IONIQ 5 EV vehicles. The rear floor wiring harness may contain an open circuit, which can result in the rear side air bag not deploying as intended.
Consequence: A rear side air bag that does not deploy as intended can increase the risk of injury in a crash.
Remedy: Dealers will inspect and replace the rear floor wiring harness, as necessary, free of charge. Owner notification letters were mailed March 12, 2025. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 274.
Hyundai Motor America (Hyundai) is recalling certain 2025 Hyundai IONIQ 5 "N" vehicles equipped with a left-foot braking (LFB) feature. The integrated electronic brake (IEB) and vehicle control unit (VCU) software may cause reduced braking performance when LFB is activated.
Consequence & remedy
Consequence: Reduced braking performance can increase the distance required to stop the vehicle, increasing the risk of a crash.
Remedy: Owners who have not received the recall remedy are advised not to use the LFB feature until the updated remedy has been performed. Additionally, owners who have received the recall remedy are advised not to use the 'N' E-shift feature until the updated remedy has been performed. Dealers will update the IEB and VCU software, free of charge. Owner notification letters were mailed March 12, 2025. This recall is replaced by NHTSA recall number 25V-235. Vehicles already repaired under this recall will need to have the new remedy completed. Owners may contact Hyundai customer service at 1-855-371-9460. Hyundai's number for this recall is 275.
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
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No exact-year investigations in this snapshot.
2025 Hyundai Ioniq 5 Problems, Complaints & Recalls | Skip That Year
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