Hyundai Ioniq 5 Complaints (2022)

402 consumer complaints on file.

#11651567March 30, 2025
ELECTRICAL SYSTEM, POWER TRAIN
Vehicle Information: Year/Make/Model: 2022 Hyundai Ioniq 5 SE AWD VIN: [XXX] Mileage at issue onset: ~18,000–22,000 miles Purchase date: April 2022 Ownership type: Purchased new, paid in full Component Affected: Electrical System → Integrated Charging Control Unit (ICCU) / Charging System Problem Description: I am reporting a persistent and unresolved charging system failure involving the ICCU (Integrated Charging Control Unit) in my 2022 Hyundai Ioniq 5. This defect has rendered the vehicle unreliable and currently inoperable, leaving me without safe transportation for myself and my infant child. Over the past year, I’ve brought the vehicle to the dealership more than 10 times, including 6 visits in just the last 3 months, due to charging issues that were supposed to be addressed via multiple recall campaigns (e.g., Campaigns 228, 997, 9A1, 9B5, 272, TCP). Despite these attempted software and firmware updates, the issue persists and culminated in a total failure to charge in March 2025. The dealership confirmed ICCU failure again, but advised that the part is on indefinite backorder, with no timeline for repair or safe operation. This defect is dangerous, particularly as it can result in loss of power and stranding, with potential risks to driver and passenger safety. Hyundai is aware of this widespread issue among Ioniq 5 owners but has not issued a permanent fix or offered viable alternatives to affected consumers. Hyundai denied my Lemon Law claim despite substantial repair documentation and admitted ICCU defects. I have filed with the BBB Auto Line and IL Attorney General. I’m now preparing for legal action. This is not just a consumer issue — it’s a national electric vehicle safety issue involving Hyundai’s inability to resolve a known, system-wide defect in a core safety component. Attachments: Available upon request: repair invoices, dealer assessments, Hyundai’s denial letter, lemon law filings. 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
#11650839March 26, 2025
ELECTRICAL SYSTEM
Instrument cluster screen continuously resets itself while driving. Speedometer and safety warnings not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650656March 25, 2025
ELECTRICAL SYSTEM
Turned on vehicle, immediately received "Check Electric Vehicle System" message. Drove ~1 mile back from coffee shop to work parking. Halfway to work parking, message updated to safely pull over and stop vehicle while at stoplight. Turned vehicle off during red light and turned vehicle back on during green light. "Check Electric Vehicle System" immediately displayed. Park at work parking. ~1 hour later, move car from work parking to guest parking to be towed to dealership, "Check Electric Vehicle System" still displayed. Dealership later confirms ICCU fault.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650210March 24, 2025
ENGINE, ELECTRICAL SYSTEM, STEERING
I am filing this complaint to report a serious safety defect involving my 2022 Hyundai Ioniq 5. The vehicle experienced a sudden failure of the Integrated Charging Control Unit (ICCU), which caused the car to completely shut down and lose power while in motion. My family member, who was driving at the time, stated that the car lost power and shut off without warning on the road, creating an extremely dangerous situation. Thankfully, they were able to pull over without incident, but this type of malfunction could easily result in a collision, injury, or worse. I later discovered that this issue is part of a widespread ICCU failure affecting Hyundai Ioniq 5 and other Hyundai/Kia EVs. My vehicle has been at the dealership for over a month, and Hyundai has informed me that the part required to repair the vehicle is backordered for 2–3 months, leaving me without my primary mode of transportation. This issue is not only a reliability concern but a serious safety hazard that warrants immediate investigation and intervention. A vehicle that completely loses power while driving is unacceptable, especially for a relatively new vehicle under warranty. I urge the NHTSA to investigate the ICCU failures in Hyundai Ioniq 5 vehicles and determine whether a broader mandatory recall is needed due to the loss of motive power and serious safety risk. Many owners are affected, and delays in repair parts are putting consumers in unsafe situations.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649267March 19, 2025
ELECTRICAL SYSTEM
ICCU failed during driving causing car to come to a halt on a busy road quickly, thankfully enough time to drive to side of road. Car had been in dealer for ICCU software update/recall 2 weeks before hand. Whatever the current fix is for the ICCU is clearly incomplete, at the Seattle Hyundai dealership there are 6 cars all waiting 6+ weeks on replacement parts for this issue. This seems like a significantly bigger problem than Hyundai is admitting and they are not proactively addressing with urgency. Thankfully we were only on a busy arterial not on a highway.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649225March 19, 2025
ELECTRICAL SYSTEM
ICCU and HV Fuse blew
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648632March 17, 2025
POWER TRAIN
The vehicle has had 2 12V battery replacements and 2 ICCU failures in about 20 months and just 12,000 miles of ownership with over 100 combined days out of service for repairs.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648554March 16, 2025
VEHICLE SPEED CONTROL, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: WARNINGS
While driving on the highway in foggy conditions, the smart cruise control system and forward safety system suddenly shut off while I was going 70 miles an hour. This almost resulted in a car rear ending me due to the sudden deceleration. The following day, with clear weather, the same issue happened again despite nothing appearing to have caused this issue while I was driving. This is a very serious concern to suddenly stop on a highway.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648076March 13, 2025
ELECTRICAL SYSTEM
My 2022 Ioniq 5 had an ICCU failure on February 2025. On February 12, 2025 I was not able to charge the car. I took it to the dealer twice for an ICCU software update. The first software update was on October 15, 2024. The second software update was January 16 2025. The third time was on February 13, 2025 for an ICCU failure. The car is at the dealership and waiting for the part so it can be replaced. If you need to do an inspection the car is at the dealership. There was no warning, it just will not take a charge. I have been waiting for a little over a month for the part to arrive at the dealership for replacement. I've call the dealership multiple times inquiring about the new replacement. They have no idea when this part will become available. I'm frustrated because no one knows anything so my car sits on their lot waiting for a part that I feel they should have in stock. Hyundai has known about the ICCU failures since 2022. Why Hyundai dealerships do not have ICCU's readily available? Knowing very well about these recalls and failures.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647467March 10, 2025
ELECTRICAL SYSTEM
I was driving home on a very cold morning and heard a "thunk" in the back right of my car. Almost immediately I got a warning that my cars electrical vehicle system needed attention. That quickly turned to a turtle telling me the issue with the electric vehicle system was limiting speed. Eventually my car stopped working. I had the 12v battery jumped and got it home. After charging the 12v battery for over a day and calling a local dealership, they determined it was most likely the ICCU. I drove my car around to the front of my house and immediately got the same warning. It was towed that same day. It has now been 2 weeks and the part is on back-order.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647180March 8, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
On [XXX] I was preparing to leave for work in the morning. I unplugged my Ioniq 5 from the home charger, entered the car, and started the vehicle. Immediately, the panel warning system stated “Check Electrical System.” Because I am familiar with the warnings that have been displayed related to ICCU failure, I called the dealership to schedule a service appointment (set for February 18, the following Tuesday). I drove the car to work for a meeting, then restarted the vehicle following the meeting and the same message appeared on the screen. I then drove the vehicle directly to Werner Hyundai Service Department in Tallahassee, Florida and left it for diagnostics. On February 14, 2025, my service advisor called to advise that the ICCU and the VCMS had failed and required replacement. I was then advised that I would be placed on a waiting list for an ICCU part that was expected to be released nationwide on March 1, 2025. As of today’s date, March 8th, I have not been made aware of an ICCU part availability (apparently the VCMS has arrived at the dealership and is being held pending the receipt of an ICCU) nor an anticipated repair of my vehicle, it remains at the dealership service department pending parts availability. My husband unplugged our home charger that uses a 220 volt plug and noted that the plug showed melting damage and that the plug and wall had black marks that suggest that the car caused a malfunction that resulted in a spark in our garage. Due to the location of the outlet, the spark did not cause a fire. Since that date, every time our HVAC system comes on at home, our lights flash, this did not happen prior to [XXX]. We are contacting an electrician to inspect the outlet and any affect the surge had on our home electrical panel. 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
#11646615March 5, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
Was pulling out of drive way. Loud pop heard in the car. Immediately car flashed warning telling me electrical system had an issue and I needed to pull over and have the car towed to a dealer for service. Was told the part was related to the iccu and would take a couple days to arrive. Part is now on back order. 3 weeks later I am still waiting with little to no update on timeline for repair.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646193March 4, 2025
POWER TRAIN, ENGINE, ELECTRICAL SYSTEM
ICCU failure preventing car from AC charging. In shop 25 days now but part not available and not given estimated repair time. Car was bought new and has 24,600 miles on it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11645846March 2, 2025
POWER TRAIN, ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
ICCU failure. Vehicle abruptly reduced speed while on the road. Hyundai has inspected the vehicle and confirmed the failure. "Stop vehicle and check power supply" warning. "Check electric vehicle system" warning. "12v batter voltage low. Stop safely" warning. All first appeared within a few minutes of the vehicle losing power. Vehicle has been at dealership for repair/replacement of ICCU since February 7th.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644485February 24, 2025
ELECTRICAL SYSTEM, ENGINE
Even after getting all recalls done my IONIQ5 had an ICCU failure. I feel that latest update which was supposed to fix ICCU issue actually accentuated it. With number of complaints on this car for ICCU failure there should class action law suit on Hyundai
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11644388February 23, 2025
ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL
On the morning of February 3rd, 2025, while driving, I heard a pop. A few seconds later, as I approached an intersection, a yellow warning appeared that instructed me to "Check the Electric Vehicle System". It minimized to a small caution light. I attempted to continue driving, pulling through the intersection; however, the vehicle had an abrupt loss of power; I was unable to proceed over 20-25 mph. In total no more than 2-3 mins passed from hearing the pop to loss of power. I pulled into a neighborhood, stopped the car, and consulted the owner's manual for direction on the warning light. While parked, and an estimated 8-10 minutes after hearing the first pop, I received a second warning, this time in red. It said "Turn power off immediately. Check power supply." I turned car off/contacted roadside, as advised in my manual, for a tow. After review at the dealership, I was originally told I needed a new 12V that it had died while I was driving. I authorized the replacement, though I also indicated to the service department that if that CAN happen, it really does not make sense AND there should be a different warning indicator for a failed 12v that could be replaced roadside versus instructing for a tow.However, after replacing my 12v the service advisor indicated that the car pulled codes and that the ICCU and its fuse seemed to have failed, which likely caused the damage to the 12v battery. After a few days of testing, my car was cleared for replacement of the failed ICCU by Hyundai's techline on February 10th. The dealer then provided a vehicle for my use while I await repairs. I was told a part could arrive the 18th or the 25th and the repair could take 3-4 days once the parts are received. It is still in shop with no updates. On 2/13/25 I filed a complaint to Hyundai; I have not received a response to date. All recalls for these issues had been performed on my vehicle in November 2024; we can no longer, in good conscience, use this vehicle. It is unsafe.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643669February 19, 2025
ELECTRICAL SYSTEM
My vehicle’s ICCU failed resulting in my 12v battery suddenly, and without warning, fail. Leaving me stranded. This seems to be a widespread issue that isn’t being addressed properly as following the manufacturer’s list of recall updates never solved the issue up to my day of failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643374February 18, 2025
FUEL/PROPULSION SYSTEM, ELECTRICAL SYSTEM, POWER TRAIN
My car suffered a failure of the Integrated Charge Control Unit ("ICCU") which makes the car underivable. This is the third time that I have had an issue with the ICCU. The first two times, it failed to charge the 12V battery, leading to a loss of all 12V systems and being unable to drive the car. This third time, the car now refuses to charge on AC power. Hyundai has tried to "repair" this issue with software updates, but it doesn't fix it. Now I am waiting for a remanufactured ICCU to replace my broken one.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643344February 18, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM, POWER TRAIN
This is the second time I’ve taken my Hyundai IONIQ 5 in to Hyundai as part of a recall “fix” for ICCU Failure. Each time, the car has been operating fine, I take the car in for the “fix” as it’s required, and then shortly after the car breaks down while it’s in motion / operating. I’ve concluded these are not “fixes” and I have no ability to trust the safety or reliability of the vehicle. 1) ICCU Failure 8 Days After Recall “Fix”. Same thing happened the previous year. Took the car in for the recall “Fix” and shortly after the car dangerous broke down while driving. 2) Car became a brick. 3) Yes, Hyundai Service Center has confirmed ICCU fault. 4) Yes, see #3 5) Yes, minutes before the car became inoperable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11642787February 14, 2025
ELECTRICAL SYSTEM
Car will start but has no propulsion. Error says “Check EV System”
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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