Electrical SystemFuel/propulsion SystemVehicle Speed Control
My new 2025 Ioniq 5 that has 8,700 miles on it suddenly popped up the message "check electric vehicle system" warning as we were driving in our neighborhood. My husband then realized that he could not drive over 30 mph just as he was merging onto our local Highway in a 65 mph zone. We limped along until the next turnoff and turn…
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My new 2025 Ioniq 5 that has 8,700 miles on it suddenly popped up the message "check electric vehicle system" warning as we were driving in our neighborhood. My husband then realized that he could not drive over 30 mph just as he was merging onto our local Highway in a 65 mph zone. We limped along until the next turnoff and turned around. We decided to take the chance to get back onto the highway for a the short distance back to our house at 30 mph and returned the car to the garage. It was towed this morning to the dealership and declared to have a failed ICCU unit. All parts are back ordered indefinitely.
What failed: On February, 6, 2026, I experienced a complete failure of my Ioniq 5's electrical system due to the ICCU failing. Heard a loud "pop" and eight seconds later it reported a warning to check the vehicle's electrical system and 24 seconds after the pop it then chimed repeatedly saying to pull over immediately and come t…
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What failed: On February, 6, 2026, I experienced a complete failure of my Ioniq 5's electrical system due to the ICCU failing. Heard a loud "pop" and eight seconds later it reported a warning to check the vehicle's electrical system and 24 seconds after the pop it then chimed repeatedly saying to pull over immediately and come to a complete stop. The vehicle is currently at a nearby My safety: Once I was able to hobble the car off the side of the road, it left me in a dangerous situation. The vehicle was such in a state that the hazard lights were not operational and I had no way of getting any heat. (It was 20F with a wind chill down to 14F.) It also happened in a bad part of town, meaning that I did not want to leave the vehicle unattended for a tow truck. This also occurred 60mi from home. Reproduced: The dealership it was towed to is not open until Monday, February 9, 2026 but the tow's rescue battery made the system run enough to report the Diagnostic Trouble Code of "P1A9096". Doing a quick search online for that shows a number of cases with the same problem. While waiting for the tow, I tried to start the car a number of times to no avail. Inspected: Not yet, see "Reproduced" section above. Any other signs/symptoms? Nothing until the "pop" itself. Once that happened, basically every warning icon showed up on the instrument cluster/screen.
2:27 pm on 02/06/2026. Pop heard from the trunk area, then displayed "Stop vehicle and check power supply," the car lost power and then became completely immobile. The car has 3500 miles on it. Bluelink app showed "Everything looks good."
NHTSA ODI #11716380
Mileage unknown · Feb 6, 2026
Electrical System
- the iccu failed and was towed to the dealership and inspected by the service team. - the car needed to be pulled over to safety because of the failure, i had my daughter with me. - yes, the problem has been confirmed by a hyundai technician. - yes, a hyundai technician - i had 2 prior brief errors show on the dashboard that d…
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- the iccu failed and was towed to the dealership and inspected by the service team. - the car needed to be pulled over to safety because of the failure, i had my daughter with me. - yes, the problem has been confirmed by a hyundai technician. - yes, a hyundai technician - i had 2 prior brief errors show on the dashboard that disappeared too quickly to read, not sure if they were related. about a month or two before the failure.
NHTSA ODI #11716307
Mileage unknown · Feb 6, 2026
Electrical System
I heard a pop sound in the back seat while pulling into a parking spot and got a "stop Vehicle and Check Power Supply" and it going into limp mode. I was able to get it home and then towed to the local dealership. I was told it was a issue with the ICCU and that it, along with my 12V battery and ICCU fuse, needed to be replaced.…
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I heard a pop sound in the back seat while pulling into a parking spot and got a "stop Vehicle and Check Power Supply" and it going into limp mode. I was able to get it home and then towed to the local dealership. I was told it was a issue with the ICCU and that it, along with my 12V battery and ICCU fuse, needed to be replaced. They could not tell me why the ICCU failed. This was on 1/3/26 and as of today 2/06/26 the dealership is still waiting for a replacement ICCU.
I heard a loud pop and then the dashboard was flashing with a lot of warnings. The car slowed down to about 5 MPH and then eventually died and wouldn't turn back on
NHTSA ODI #11715937
Mileage unknown · Feb 5, 2026
Electrical System
12v Battery has died multiple times. Dealership says the battery is fine. 2025 with 16k miles.
NHTSA ODI #11715902
Mileage unknown · Feb 5, 2026
Electrical System
The ICCU failed after 5,500 miles and the car lost all power. Fortunately it happened in the driveway and otherwise could have been a life-threatening situation. This is a 2025 model that wasn't covered by the recall so it's obvious Hyundai has not solved the problem.
NHTSA ODI #11715826
Mileage unknown · Feb 5, 2026
Electrical SystemFuel/propulsion SystemVehicle Speed Control
The ICCU system's fuse failed.The car is currently with the dealership for repairs and could be available for inspection there if needed. The car was rendered inoperable and shut down while operating the vehicle. The abrupt breakdown could have been a hazard to the driver, passengers of the vehicle, and other drivers on the road…
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The ICCU system's fuse failed.The car is currently with the dealership for repairs and could be available for inspection there if needed. The car was rendered inoperable and shut down while operating the vehicle. The abrupt breakdown could have been a hazard to the driver, passengers of the vehicle, and other drivers on the road. The issue was confirmed by the dealership's service technician. The vehicle has only been inspected by the dealership's service department at the time of writing. There was a warning just before the system/car shut down while driving. The warning sounded and said to "Stop vehicle and check power supply." This was the only time the warning appeared.
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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