Hyundai Ioniq 5 Complaints (2022)

402 consumer complaints on file.

#11714282January 29, 2026
ELECTRICAL SYSTEM
I first noticed something was wrong when the car only charged to 90% even though I set it to 100%, since I wanted it ready for the storm. I drove normally after that. When I tried to charge again, the breaker tripped. L1 charging also tripped the breaker. V2L didn’t work either. The weird part: the orange light was still on, and it was still charging the 12V battery multiple times. I have a battery monitor and everything looked normal. I was also able to drive the car to the dealer with no issues at all. No warning lights or errors on the dashboard. Dealer diagnosed it as an ICCU failure. Part is on backorder with no ETA 🤷‍♂️🤷‍♂️
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714256January 29, 2026
ELECTRICAL SYSTEM
Unable to do AC charging due to faulty ICCU. A failing ICCU is dangerous to drive as the car may lose all of its power
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714194January 29, 2026
ELECTRICAL SYSTEM
Car died due to 12v battery failure due to ICCU not working properly in Oct 2023. Did ICCU recall and safety updates with dealer and they installed a new 12v battery. Oct 2025, car dies again due to 12v battery failure to to ICCU. Car has been at dealer for over 2 months waiting for new ICCU part to arrive and be installed. The ICCU system on this vehicle and related vehicles in the Hyundai/Kia line up seem to have a significant design flaw. I have no confidence a new ICCU part will 'fix' the issue. This will just push the issue out again until the new 12v battery dies and we do it all over again.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714187January 29, 2026
ELECTRICAL SYSTEM
Vehicle experienced sudden loss of propulsion while driving despite indicated remaining battery charge (~13%). Vehicle became immobilized and required towing. Dealer performed static diagnostics after recharging and found no stored fault codes, but no testing was performed to evaluate sudden loss-of-propulsion under load. Manufacturer closed case without investigation. This presents an ongoing safety risk of unexpected propulsion loss in traffic.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714129January 29, 2026
POWER TRAIN
The ICCU has failed. This component was replaced approximately one year ago as part of a recall, but it has failed again. The vehicle is currently parked and cannot be driven until Hyundai provides a replacement part, which may take up to three months. The failure presents a safety concern, as the vehicle can shut off while driving and leave the driver stranded. The Hyundai dealership has confirmed that the replacement part provided by Hyundai—the ICCU—is the component that failed. There were no prior warning signs of failure, other than the vehicle refusing to charge on a Level 2 charger.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714008January 28, 2026
ELECTRICAL SYSTEM
ICCU Failure caused car to lose all motive power. Car held at dealer for 18 days until replacement part could be procured. ICCU reprogramming recall had been completed on the vehicle. Part failed anyway.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713993January 28, 2026
FUEL/PROPULSION SYSTEM
Iccu blew. Car cannot be charged
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713986January 28, 2026
UNKNOWN OR OTHER, POWER TRAIN, FUEL/PROPULSION SYSTEM
The component that malfunctioned is the Integrated Charge Control Unit (ICCU) and related high-voltage charging system in my 2022 Hyundai Ioniq 5. The ICCU controls AC (Level 2) charging, DC fast charging functions, and power delivery. The ICCU assembly and charging components were serviced and replaced by an authorized Hyundai dealer and are available for inspection through service records. This defect created a safety risk because the vehicle experienced complete charging failure and reduced-power operation. Loss of charging capability can leave drivers stranded, and reduced-power “turtle mode” conditions can limit acceleration and vehicle performance, creating hazards in traffic. The charge port has also not locked during charging, creating a potential risk of electrical arcing during DC fast charging. The failure was reproduced and confirmed by an authorized Hyundai dealer. In approximately January 2025 the vehicle would not charge and remained at the dealership for an extended period (about January through June 2025). After diagnosis and consultation with Hyundai technical support, the dealer replaced the ICCU assembly and high-voltage fuse. The vehicle and charging system have been inspected multiple times by Hyundai service centers. Hyundai issued recall campaigns in 2023 and 2024 involving ICCU software updates and fuse-related work, but these did not prevent the later failure requiring full ICCU replacement. Prior symptoms included abnormal charging behavior and eventual total loss of AC charging capability during the 2025 failure, making home charging impossible. After the ICCU replacement, the vehicle exhibited unusually loud cooling fan operation during Level 2 charging, documented by the dealer. There were also charging-port safety concerns. After one service visit, an important DC pin cover/cap was not properly installed until corrected on a return visit, leaving charging components exposed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713984January 28, 2026
ELECTRICAL SYSTEM
ICCU failure 5 days ago. Needs to be replaced and the part is on backorder.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713722January 27, 2026
ELECTRICAL SYSTEM
The ICCU stopped working while I was charging with level 2 overnight. DC fast charging still works but car failed to charge with level 1 or 2. Warranty repair. Car is in dealer for approx 4+ weeks.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713434January 26, 2026
POWER TRAIN, STEERING, ELECTRICAL SYSTEM
After a loud bang (fuse blown) the car was unable to move just before I was about to turn into an intersection. The ICCU failed for the second time, all warranty repair completed prior to the incident, first failure occurred in 2024. Both failures occurred close to a when the lead acid battery failed and needed replacement. When the car was stopped and started again, I was able to drive the car slowly to the dealership located less then 1/4 mile away. The car behaved as if there was no power steering but the car still jerked the wheel around to try to put me back into the driving lane presumably because I was driving in the emergency lane. Failed component was ICCU Module 36400-1XAA0. Vehicle was unsafe because I was unable to move while about to turn into an intersection. After stopping and starting the car, the was drive-able bit mildly erratic when attempting to move the car to a safe location (out of the left turning lane). Problem was identified, confirmed, and repaired by dealer under warranty for second time. Component and vehicle inspected by dealer. Failed part sent back to manufacturer. This incident occurred without any prior warning or indication by the vehicle. There were no active recalls on the vehicle at the time of the incident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11712980January 23, 2026
FUEL/PROPULSION SYSTEM
ICCU failed and my car will not charge. The dealer has diagnosed this issue. Parts are not available to fix this issue. The problem has been reported to the manufacturer but they have no expected delivery date for the needed parts. I was told it could be months.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11712956January 23, 2026
ELECTRICAL SYSTEM
My vehicle experienced a failure of the Integrated Charging Control Unit (ICCU), which rendered the vehicle inoperable and required towing to the dealer, where the ICCU failure was confirmed and the vehicle remains available for inspection. The failure created a safety risk due to sudden loss of drivability and the potential for the vehicle to stop unexpectedly. The dealer has stated there is no estimated time of arrival for the replacement ICCU and no loaner vehicle has been provided. A similar ICCU failure occurred approximately one year ago (February 2025) and was repaired within one week, which is why it was not previously reported. Warning messages and drivability issues appeared prior to the failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11712790January 22, 2026
SERVICE BRAKES
I am writing to report a serious safety incident involving my 2022 Hyundai Ioniq 5 and to request a thorough investigation and guidance on next steps. On Jan. 3, 2026, at approximately 6:15 p.m. on a snowy day, we parked our car in the driveway of a weekend rental home near Lake Tahoe, CA. The driveway had a slight slope toward the house, and we backed the car down the driveway with the rear of the car facing the house. My husband turned off the car, then all five occupants exited the vehicle, closed the doors, and began unloading items from the trunk. The car began rolling backwards toward us and the house. It only stopped after pinning my husband into a snowbank created by a snowplow. The other three adults and our [XXX] niece narrowly avoided being struck. While pinned behind the vehicle, my husband had to dig out some snow to reach into his pants pocket and retrieve the key fob. I then moved the car forward a few feet to free him. Although he was pinned in the snow, my husband was (thankfully) not seriously injured. After freeing my husband, I put the car in Park and turned it off. In this model, the parking brake engages automatically; there is no separate parking brake button or lever. A few minutes later, without anyone in or near the vehicle, the car again rolled backwards down the driveway into the same snowbank. Tracks in the snow clearly indicate that the wheels rotated and the car rolled; it was not sliding on ice with the brakes applied. In other words, the parking brake and/or Park mechanism failed to hold the vehicle in place in sub freezing, snowy conditions. The temperature at this location and time was in the mid 20s °F. After returning home from our trip, we took the car to our Hyundai service center, which has performed all maintenance since we purchased it in 2022. The service center performed all standard diagnostics but was unable to replicate the failure conditions. 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
#11712032January 20, 2026
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM, ENGINE
This is an EV vehicle. This is a recurrent problem with the Ioniq 5 and is all over the internet. For me this is the 2nd electrical failure. The first time the accessory batter failed and the ICCU controller failed and had to be replaced. Now its at the shop for the 2nd time for the same failure. Not sure if its the ICCU again or not. In and of itself not a problem to send it off to fix, The major issue is how it fails. There is no warning, If you are on the highway going 70 mph it goes flat... no propulsion. This gives you no or little power to get to a secure spot. It then is only capable of about 20 mph. This is dangerous as hell. The first time it died completely and wouldn't move. For myself, i was lucky i was on a local road. I was driving. For my wife, who drives this car it would be harrowing. This is a recurring problem with this vehicle. A solution has not been found other than to swap parts. Hyundai need to be put on notice for a permanent fix.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711921January 19, 2026
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
Iccu failure unable to charge or drive
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711725January 18, 2026
FUEL/PROPULSION SYSTEM
The ICCU on this vehicle has been replaced twice, 10/25 and 1/26. The failure of the unit on stopped any movement of the car,leaving me stranded on busy highways. I have had all software updates performed prior to these failures
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711561January 16, 2026
POWER TRAIN, ENGINE
To my understand, the ICCU keeps shutting down and is causing issues with my car? This is apparently a huge issue with a bunch of Hyundai's from 2022.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711119January 15, 2026
ELECTRICAL SYSTEM
While driving home, first "Check EV system" error came on and then "STOP VEHICLE - POWER SYSTEM FAILURE"; it was continuing to drive but would then not go above 25 mph. I pulled car over at next exit and had it towed to the dealership. It was not safe to drive at 25mph on a 45mph roadway. The dealership has confirmed problem with ICCU relay and 12V battery. This is the 2nd time this vehicle has had an ICCU problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710901January 14, 2026
FUEL/PROPULSION SYSTEM, POWER TRAIN, ELECTRICAL SYSTEM
My 2022 Hyundai Ioniq 5 has experienced two ICCU (Integrated Charging Control Unit) failures, both completely immobilizing the vehicle. •First failure: November 2024 •Second failure: December 31, 2025 (confirmed by dealer 1/13/26) •Downtime: Over 45 days total •All recall work and maintenance were performed at the same Hyundai dealer, under active warranty, but the recall did not prevent the second failure. Safety Risk: These ICCU failures cause sudden loss of propulsion, leaving the vehicle stranded and creating a serious safety hazard. The second failure after recall indicates the repair is inadequate. Luckily mine failed at home before departing for an errand, but I am gravely concerned about others not as fortunate or for myself should the issue recur while I am traveling on a public road. Examples of this are reported online in a variety of forums. Widespread Issue: Thousands of owners report similar ICCU failures, often after recall repairs, on forums and social media. There is also ongoing Canadian litigation addressing the same defect. Requested Action: •Investigate repeated ICCU failures in Hyundai/Kia EVs •Evaluate the adequacy of recall repairs •Require Hyundai to implement a permanent fix •Take appropriate safety action to protect vehicle owners
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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