2022 Hyundai Ioniq 5

406 complaints on file, page 1 of 21.

1. Filed Sep 27, 2026Failure Sep 18, 2026Gaithersburg, MDElectrical system

   The Integrated Charging Control Unit (ICCU) in my 2022 Hyundai IONIQ 5 failed while the vehicle was charging. The vehicle had been connected to a Level 1 charger for a multi-day charging session when it unexpectedly stopped charging before reaching the selected charge limit. After the failure, the vehicle could no longer successfully charge using either Level 1 or Level 2 charging. When connected to a charger, the vehicle would initially appear to begin charging, but charging would then stop and the dashboard would display an electrical-system warning instructing me to inspect the vehicle’s electrical system. There was no warning or indication of an impending ICCU failure before this occurred. This created a significant reliability and safety concern because the vehicle effectively lost its ability to AC charge. Had I driven to a destination expecting to recharge there without realizing the charging system had failed, I could have been stranded without sufficient range to continue driving. I brought the vehicle to a Hyundai dealership, where technicians diagnosed the problem as an ICCU failure. The dealership subsequently replaced the ICCU. My vehicle had previously received Hyundai’s ICCU-related software campaign/recall update. Despite having that update performed, the ICCU later failed and required physical replacement. I am submitting this complaint because the prior software remedy did not prevent the ICCU failure experienced by my vehicle.

   NHTSA complaint 11767269
2. Filed Sep 18, 2026Failure Sep 5, 2026Leavenworth, WAElectrical system

   We had a previous issue with our 12V battery not charging, which totally bricked the whole car. Hyundai updated the charge management system software under the active recalls and tested the 12V battery, which after it was fully charged they said was fine. Now (a few months outside our warranty period for the 12v battery), our car was bricked again and was so dead that we could not even start it/charge the battery with a jump start kit. We were stranded on the side of the road (where we had parked for an event we were attending) and the next day Hyundai towed the car to the nearest dealer (3 hours away). It took a week for them to even look at our car and diagnose it. When they did, they said the 12v battery had "just died" because "it was old". There were zero warnings about the 12v battery not charging before it died. There were zero DTC codes. They refused to replace the battery under any warranty/the previous recall and we ended up paying out of pocket. The more concerning thing is that they claimed "nothing is wrong with the charge management system" which is clearly not the case. Even older 12V batteries don't just die after leaving them for a few hours - especially to be SO dead that they can't even be revived. I no longer feel safe driving the vehicle anywhere that I can't get a cab ride - who knows when it will just decide to stop working?

   NHTSA complaint 11765318
3. Filed Sep 5, 2026Failure Sep 4, 2026Seattle, WAPower train, Service brakes, Vehicle speed control

   This report is an addendum to report 11762283 that was made yesterday. The vehicle allows driving with the rear liftgate ajar, however under some circumstances it engages the EPB when the vehicle comes to a stop while the gear state is still Drive. The gear state of the car remains in Drive when the EPB engages. This presents the driver with the choice, in the middle of the road and possibly in the middle of an intersection, of either exiting the vehicle and rearranging contents of the vehicle to allow the rear liftgate to close, or activating the accelerator to continue driving with the traction motor overpowering clamped EPB. Neither option is safe. I have attempted to reproduce this unsafe state of the vehicle and was successful in one case and unsuccessful in another. My hypothesis for the differentiating factor is the top speed reached prior to decelerating to a stop: in the first case, 13mph, and in the second, 15mph. I have attached a single frame from one of two videos, of the successful case. The instrument display shows gear state is Drive, the car is moving, high torque is being applied by the traction motors (but typically the screen center shows ADAS state, and there is no indication of instantaneous traction torque), and the EPB is engaged. The car is in the middle of an intersection at the time.

   NHTSA complaint 11762370
4. Filed Sep 4, 2026Failure Sep 4, 2026seattle, WAService brakes, Vehicle speed control

   After coming to a stop at a stop sign, and while the gear state was in Drive, the vehicle auto-applied the electronic parking brake because the tailgate was ajar. Gear state remained in Drive. Upon accelerator input, the parking brake did not release, and the vehicle delivered propulsion torque overcoming the parking brake. As a result, the vehicle accelerated and drove several blocks with the rear brakes fully clamped, which was only effectively indicated by a smell and smoke emitted from the rear wheel wells. An irritating repetitive audio and large flashing visual alert in the display cluster indicating the tailgate state distracted from any additional indications that may have been displayed. That distracting indication was continuously active from when gear state was first switched to Drive and did not correlate with EPB engagement.

   NHTSA complaint 11762283
5. Filed Aug 26, 2026Failure May 6, 2026Cedar Hills, UTElectrical system, Engine

   Active powertrain failure on my 2022 Ioniq 5 SE, which poses an immediate and severe safety risk. On May 18, 2026, the vehicle suffered a catastrophic loss of power and a complete failure to charge. At Murdock Hyundai of Lindon, technicians diagnosed it with trouble code P1AA600 and recommended a total high-voltage battery pack replacement at a cost of over $44,000. Immediate Fire & Safety Risk: The dealership technician explicitly warned me that if I continue to attempt to drive or plug in the vehicle, it will cause an electrical fire. Visible Electrical Arcing: The service technician stated that they physically witnessed an electrical arc occur when connecting the vehicle's high-voltage charging components. The technician's diagnosis strongly points to a catastrophic internal short circuit or a failed Power Relay Assembly (PRA) within the high-voltage housing. The company completely stopped working and Hyundai would not help. This has been an ongoing issue with other cars too. I tried multiple times working with both the deal and Hyudnai.

   NHTSA complaint 11759832
6. Filed Aug 3, 2026Failure Jul 17, 2026Scottsdale, AZElectrical system, Automatic emergency braking, Steering

   While driving 70mph on the highway in Phoenix, multiple emergency lights illuminated on the dashboard and I lost all control over the steering wheel and braking mechanisms. The car has been serviced regularly with multiple check-ins focusing on battery efficiency.

   NHTSA complaint 11754530
7. Filed Jul 22, 2026Failure Jun 3, 2026Edison, NJElectrical system

   On June 3, 2026, my 2022 Hyundai Ioniq 5 SE Dual Motor AWD (approximately 31,000 miles) experienced a sudden and severe high-voltage battery failure. Prior to complete failure, I noticed “Check Electrical” warning sign occurring simultaneously: a sudden and dramatic drop in driving range, dashboard warning lights illuminating, and the vehicle failing to charge properly at both home and public charging stations. The vehicle was still drivable at the time I brought it to an authorized Hyundai dealership, but displayed serious warnings indicating the HV battery system was critically compromised. Upon inspection, the dealership confirmed the main high-voltage battery had failed and required full replacement. The dealership has advised that the repair will take several months due to parts availability. This failure is not an isolated incident. Hyundai issued a recall covering 2022–2024 Ioniq 5 models for HV battery and charging system defects (including ICCU failure). My vehicle’s failure is consistent with this known defect pattern. Despite the vehicle being subject to this known systemic issue, Hyundai Motor America has declined to offer a goodwill buyback, and my case manager has stated the vehicle does not qualify for lemon law relief. The sudden loss of range and charging capability while the vehicle is in motion or in use presents a serious safety concern — particularly on highways where unexpected power loss could lead to accidents. I am currently without a vehicle for what Hyundai estimates to be several months. I am requesting NHTSA investigate this failure pattern in 2022–2024 Hyundai Ioniq 5 vehicles and take appropriate action to protect consumers from this known defect.

   NHTSA complaint 11752268
8. Filed Jul 7, 2026Failure Jun 29, 2026Salt Lake City, UTElectrical system, Fuel/propulsion system

   Complaint Summary: Mandated federal safety recall remedies performed on my vehicle have directly induced a cascading, critical safety failure of the vehicle's high-voltage propulsion management system. My 2022 Hyundai IONIQ 5 (VIN: [XXX]) was brought to an authorized dealer on XXX at 200,224 miles to complete safety recall Campaign 272 / NHTSA Recall 24V-204 (ICCU Software Update and Fuse Inspection). After receiving this software flash, the vehicle's electrical charging system failed (DTC P0D5C00), requiring a full hardware replacement of the Integrated Charging Control Unit (ICCU) on XXX. 142 miles after the physical replacement of the high-voltage ICCU, the vehicle displayed an emergency battery malfunction message on the dashboard. Diagnostic scans reveal active fault code P1BC700 in the Battery Management System. The manufacturer's dealership is now charging $1,909.77 out-of-pocket to replace the Power Relay Assembly (PRA).The current recall modifications for the E-GMP platform are failing to safely mitigate high-voltage current spikes. The electrical strain or servicing procedure required by the recall has directly compromised the adjacent power relays. This creates a severe safety hazard, leaving drivers exposed to subsequent high-voltage component failure immediately after completing mandated federal safety recalls. NHTSA should investigate cascading high-voltage component failures occurring in vehicles directly following the completion of Recall 24V-204. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11748828
9. Filed Jul 6, 2026Failure Jul 1, 2026Belleville, ILElectrical system, Fuel/propulsion system

   Experienced ICCU failure under everyday conditions, driving home from an appointment. Car had sat in direct sun for 30 mins, and starting the car and driving away with the AC fully blasting is when the failure occurred.

   NHTSA complaint 11748510
10. Filed Jun 12, 2026Failure May 8, 2026Cedar Hills, UTElectrical system, EngineFire

    Component that failed: High-voltage main battery pack assembly and associated electrical architecture. The vehicle and the component are currently located at my home and are available for inspection upon request. Description of Incident & Safety Risk: While attempting to drive the car and when connected to the vehicle to a standard charging infrastructure, a catastrophic internal failure occurred within the high-voltage system (Diagnostic Trouble Code P1AA600). Upon attempting to plug the vehicle in, active electrical arcing and physical sparks emanated from the high-voltage architecture. This structural manufacturing component defect presents an immediate, severe, and active fire and safety hazard to the occupants, the vehicle, and any surrounding property. The vehicle is currently completely un-driveable and unsafe to connect to any power grid. Dealer Confirmation & Inspection: The vehicle was driven to a certified manufacturer dealership service center. A certified dealership technician formally inspected the vehicle, reproduced the fault, and explicitly documented the active electrical arcing and sparking coming from the high-voltage pack in the official service records. The vehicle history was also escalated to the manufacturer's executive consumer affairs team, who acknowledged the intake statement but refused to authorize a remedy or repair. Warning Symptoms: There were no long-term warning lamps or prior symptoms leading up to the structural breakdown. The high-voltage system failure occurred suddenly and catastrophically, immediately triggering a critical malfunction indicator on the dashboard cluster at the time of the failure.

    NHTSA complaint 11743803
11. Filed Jun 1, 2026Failure Jan 22, 2026League City, TXElectrical system

    The ICCU failed to charge the car via level 1 (120VAC or 240VAC), but does charge using public DC chargers. Fortunately the issue occurred at home so no traffic issue occurred, in this case. The level 1 charger indicated a fault and would not charge the car. I drove the vehicle without any issues to a public charger and established that the DC charging is working. Hyundai repair center diagnosed the problem and confirmed that a repair is needed. I am currently awaiting a repair. The fault was diagnosed on January 22, 2026 and as of June 01, 2026 no repair has been done.

    NHTSA complaint 11741280
12. Filed May 13, 2026Failure Nov 21, 2025Bryans Road, MDElectrical system, Assist, Service brakes

    Unknown. It just happened in November and i called Hyundai but they didn't want to fix it. I haven't been able to use my car properly since then.

    NHTSA complaint 11737714
13. Filed May 9, 2026Failure May 7, 2026Los Angeles, CAElectrical system

    ICCU failure. I received a message that said "Check electric vehicle system." Then seconds later another message that said "Stop vehicle and check power supply." Vehicle became nonfunctional (with my [XXX] daughter in the car) and had to have it towed to the nearest Hyundai dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

    NHTSA complaint 11736789
14. Filed May 1, 2026Failure Sep 15, 2025Tacoma, WAElectrical system

    The battery is charged but will not start. It says pull over safely before it goes completely dead.i can jump the battery but it does not continue after being turned off. Slow and hard turning.

    NHTSA complaint 11735203
15. Filed Apr 29, 2026Failure Apr 19, 2026Atlanta, GAElectrical system

    I tried to start car and it started but would not go into drive. A message saying "12v battery voltage low. Stop safely." Was on the screen. I turned the car off and back on and was able to drive home. Once home I tried to charge the car but it would not charge. However I left it plugged in and came back several hours later and the car had charged some. I started the car and the messages did not appear. The next day i went to drive the car and the car was totally dead. The auto key would not unlock the car. Thank goodness , I was not driving when the battery died. I took it to the dealer. This is the 2nd 12v battery I have had to replace in 4 years. The first replacement was covered under warranty. I asked them to try to identify the root cause of the 12v batteries dying so quickly and they claim it is only the 12v battery. I feel unsafe driving the car now knowing it could happen at any moment again, maybe while driving. I think the problem is related to the ICCU as my symptoms are very similar to other people with ICCU issues.

    NHTSA complaint 11734611
16. Filed Apr 29, 2026Failure Apr 26, 2026Avon, CTElectrical system, Unknown or other1 injured

    While the vehicle was parked in a garage and charging overnight, I briefly went to the vehicle to retrieve an item from the back seat. I was barefoot at the time. I opened the driver‑side rear door and reached inside with my right hand while my left hand was near the upper door area where the door seal is located. When my left hand grazed the door frame, it felt unusually sharp. When I touched the area again to determine what was sharp, I received a significant electric shock. There were no warning lights, messages, or prior symptoms before the incident. The presence of electrical current on an exterior door surface poses a safety risk during normal vehicle use.

    NHTSA complaint 11734481
17. Filed Apr 27, 2026Failure Apr 4, 2026Brooklyn, NYElectrical system, Power train

    2022 Ioniq 5 SE. ICCU failed April 2026 with around 29325 miles. Original owner. Purchased June 2022. I had the original Recall 272 software update performed back in February 2025, but the hardware still failed a year later. **Timeline of Failure:** 1. **Phase 1 (The Trigger):** Level 2 charging stopped unexpectedly before reaching the limit. It tripped my house breaker and unfortunately killed my Level 2 EVSE (Grizzl-E) with a stuck relay. Didn't think too much of it because I had to be somewhere. Car started up normally and I was able to drive throughout the day with no problems. 2. **Phase 2 (The Warning):** The next day, I attempted Level 1 charging. It immediately tripped the breaker. I tried another outlet on a different breaker; the breaker didn't trip, but the car failed to initiate a charge after three attempts. 3. **Phase 3 (Dashboard Error):** After third failed attempt with the L1, I took a peek inside and saw the dashboard had a yellow triangle. With the charger still plugged in, I sat in the driver's seat and turned the car on. The **"Check EV System"** error appeared. I turned off the car and went inside to call the dealer. I called the dealer and they said I can have it towed there. They also scheduled an appointment for the next morning. I went back to car to attempt to position the car to make it easier for the tow truck, but the check ev error was not there when I turned on the car. It said ready and I was able to drive around the block a few times so I figured I'll just try to drive to the dealer. I drove the car to the dealer the next morning. It took **one week** to get my car back. **Diagnostics & Parts Replaced:** The dealer confirmed the following codes and performed a full hardware replacement: * **DTC P1E1300:** AC Power Module Failure * **DTC P1A9096:** DC/DC Converter Fault * **ICCU Part:** `36400-1XAA0-AQQH` * **HV Fuse:** `375F2-GI040-QQH` * **Coolant:** Install of Pink Antifreeze (`00232-19098`)

    NHTSA complaint 11734110
18. Filed Apr 23, 2026Failure Apr 19, 2026San Marcos, CAElectrical system

    The ICCU unit went out rendering the car inoperable

    NHTSA complaint 11733413
19. Filed Apr 22, 2026Failure Feb 27, 2026Kansas City, MOElectrical system, Power train

    The car lost power while driving and an electrical warning was displayed on the screen. The issue was later diagnosed as a failure of the ICCU and blown fuse that had been previously recalled and replaced. Now it needs to be replaced again.

    NHTSA complaint 11732961
20. Filed Apr 19, 2026Failure Apr 18, 2026Medford, WIElectrical system, Fuel/propulsion system, Power train

    Finished charge, low battery indicator on the dashboard. started to drive, within mile "pull over immediatedly" well documented and continued flaw with vechile ICCU component (that I had the software "patches" applied). Car will no longer accept charge (so now has the remaining charge before being a 3 ton brick) and cannot not be driven as if the 12v battery loses charge (which it will) I will lose powersteering and brakes.

    NHTSA complaint 11732158