Hyundai Ioniq 5 Complaints (2025)

290 consumer complaints on file.

#11718060February 15, 2026
ELECTRICAL SYSTEM
The ICCU unit failed and I have been without my car for already 3+ weeks
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717915February 13, 2026
POWER TRAIN, ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717905February 13, 2026
POWER TRAIN, ELECTRICAL SYSTEM
ICCU needs to be replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717590February 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 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717518February 12, 2026
ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: WARNINGS
In-Cabin Camera Unit Replacement - The in- cabin camera unit needs replacement due to a communication failure with the ICC module. Technicians confirmed proper power, ground, and CAN system continuity to the module but encountered a persistent 'ROM ID check failed' error. Replacing the unit can restore proper communication and functionality of the camera system.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717502February 12, 2026
ELECTRICAL SYSTEM
All of a sudden after starting the car I got a “Check Electric Vehicle” warning sign and when I called the dealership the told me do NOT drive it and tow it. The basically told me it will die on me.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717485February 12, 2026
ELECTRICAL SYSTEM, ENGINE
The ICCU (Integrated charging control unit) failed, causing my car to go into "Limp mode" where it was unable to accelerate over 44 mph. This put my safety at risk as I was unable to accelerate on the freeway. The Hyundai dealer confirmed the problem and it is still there, with no estimated time for repair due to a shortage of replacement part. It was not inspected by the police or insurance. There weren't any warnings or symptoms prior to the failure. Hyundai has issued recalls for 2022-24 models for this problem but not the 2025, although it appears they have not fixed this for 2025 models.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717256February 11, 2026
ELECTRICAL SYSTEM
The vehicle's ICCU failed after 7 months and 7k miles of driving. This is a known issue that Hyundai has not addressed or issued a recall for.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717247February 11, 2026
ELECTRICAL SYSTEM
Vehicle's charging system failed when vehicle was remote started. Specifically the ICCU failed, and drained the low voltage system of power. Vehicle would not move, and left me stranded. Currently, Vehicle is at a dealership awaiting inspection for warranty repair. Multiple warning lights, DTC P1A9096.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717114February 10, 2026
ELECTRICAL SYSTEM
The integrated charging control unit (ICCU) failed on [XXX] rendering the vehicle inoperable and powerless. Warning lights did illuminate on the dash shortly after a popping sound, along with warning sounds. This occurred just minutes before I was going to enter a freeway. The vehicle was towed to the nearest Hyundai dealer (Hanlees Hilltop Hyundai, Richmond, CA) on Jan. 7. The ICCU failure was diagnosed on Jan. 9. Hanlees Hilltop ordered replacement ICCU parts on Jan. 9. (At Hanlees, my customer # is [XXX]. The work order # is [XXX]. I checked with my service advisor at Hanlees Hilltop today (Feb. 10); the parts remain on backorder with no estimate for arrival. I take note that the ICCU was subject to recall in 2022, 2023, and 2024 Hyundai Ioniq 5 models. I am inquiring as to whether there will be a similar recall for 2025 Ioniq 5 models. About an hour of research online strongly suggests that ICCU issues remain a continuing problem. I filed a case with Hyundai Motor America (case# [XXX]). So far, the executive case manager assigned to me has not been helpful. I request an NHTSA Office of Defects Investigation to ascertain whether it is advisable and safe for Hyundai to do nothing about this critical problem for consumers. Further, two more questions should be explored: 1) should 2025 Ioniq 5 vehicles be recalled because of the ICCU; and 2) should the ICCU itself be improved or modified, given that it has been the cause of recall in the previous three model years? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717078February 10, 2026
ELECTRICAL SYSTEM
While charging the vehicle, I heard a loud pop and the charging session stopped and could not be restarted. An error warning icon appeared on the dash with a battery icon. Also a car with an! Icon and a large circle stating check the electrical system. I was able to drive a few miles before the car completely died.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716851February 9, 2026
ELECTRICAL SYSTEM
ICCU FAILURE. Confirmed by dealer. Warning lights to check battery. Almost total loss of power. 4000 miles on the car. Service center has no estimate on when parts are available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716830February 9, 2026
ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL, FUEL/PROPULSION SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716579February 8, 2026
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM, POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716380February 7, 2026
POWER TRAIN, ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
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."
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716307February 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 disappeared too quickly to read, not sure if they were related. about a month or two before the failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716262February 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. 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11716079February 6, 2026
POWER TRAIN, FUEL/PROPULSION SYSTEM, ELECTRICAL SYSTEM
ICCU failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715937February 5, 2026
ELECTRICAL SYSTEM
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715902February 5, 2026
ELECTRICAL SYSTEM
12v Battery has died multiple times. Dealership says the battery is fine. 2025 with 16k miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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