Hyundai Ioniq 5 Complaints

1,350 consumer complaints on file.

#11651385March 28, 2025
ELECTRICAL SYSTEM
The car was parked and off. I turned the car on. It started normally. Just before shifting to reverse to leave, I hear a loud "pop" sound from under the rear seat area. A yellow "check electric vehicle system" warning appears on the dashboard, with a battery warning icon. About 30 seconds later, a red "stop vehicle and check power supply" warning appears with an alarm/chime. I have completed all ICCU recalls and any other recalls on the vehicle. I had just dropped my son off for a preschool trip. I am grateful I was not driving with him when this happened as the car becomes inoperable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651260March 28, 2025
UNKNOWN OR OTHER
On March 15, I pulled my car into a charging station and turned it off. The charger would not recognize my car, so I figured I'd pull into a different charger. However, when I tried to start my car to move it I got the dreaded Low Voltage warning. The car would not start, and even when a tow truck brought a 12V charger it would not jump. It was completely dead. It had to be dragged with chains onto a tow truck. It was brought to a dealer where it has been ever since. I have just been informed by Hyundai corporate that the car needs a new ICCU but that they are backordered. This is the SECOND ICCU issue I have had with this car. The first was on December 26 when the issue was a recall [that I had not been made ware of yet] for a software update. I believe a fuse and the 12V battery were also replaced as the 12V completely discharged from the failure. On this occasion, the vehicle was dead in my driveway. I consider myself fortunate that the car did not die on a highway or while I was actually driving it, because that is very dangerous. But this car is not reliable and I feel like Hyundai should be buying back the lease and putting me into a different vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651147March 27, 2025
ELECTRICAL SYSTEM
The contact owns a 2023 Hyundai Ioniq 5. The contact stated that the recall repairs for NHTSA Campaign Number: 24V868000 (Electrical System) and 24V204000 (Electrical System) were completed; however, the repairs failed to prevent a failure from occurring shortly afterwards. The contact stated that while attempting the charge the hybrid battery, the vehicle failed to charge to full capacity as intended. In addition, the contact was alerted by the vehicle with a Voice message that the vehicle had failed to charge as intended. No warning lights were illuminated. The vehicle was taken back to the same local dealer where it was reprogrammed; however, the failure reoccurred. The contact was advised that the ICCU needed to be replaced; however, parts were not available. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 16,307.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651078March 27, 2025
UNKNOWN OR OTHER
On Monday morning (3/24/2025), my 2024 Hyundai Ioniq 5 lost power and I received the "Check electric vehicle system warning." After that I received another warning that said, "Stop vehicle and check power supply." The car had lost most of its power by this point, but I was less than a mile from my house, so I was able to make it home by turning the car on and off every couple of blocks. It was towed from my house to the dealership the same morning, where it's been ever since. I was just informed that the ICCU needs replacement. My understanding is that this is a prolific problem with this car, and I'm very concerned because my car is less than 8 months old and has less than 8,000 miles on it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650928March 26, 2025
SERVICE BRAKES, FUEL/PROPULSION SYSTEM, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
My wife was parking the 2024 ioniq and it lurched forward at a high rate of speed and slammed into another car parked in our driveway and drove that vehicle through our home garage door. She feels certain that her foot was on the brake, but even if she accidentally slipped and appleid the brake the forward collision system should have prevented the accident additionally the impact occurred with such force it is unlikely due to human error as it pushed our very heavy 4Runner back 3 feet and thorough a closed garage door.
Crash:
Yes
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
#11650784March 26, 2025
POWER TRAIN, ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
On March 20, 2025, my 2023 Hyundai Ioniq 5 displayed the error "Stop check vehicle power supply" and abruptly shut down during rush-hour traffic, leaving my young son and me stranded on a heavily congested bridge. Immediately, the car’s display went dark, doors wouldn't unlock, and the gear shifter was immobilized. With no emergency functions available, we were completely trapped. On a slight incline, I had to continuously hold the brake pedal to prevent rolling forward into increasingly aggressive traffic, making an already frightening situation terrifying for my child. Police arrived but struggled to assist preventing the car from moving. After several tense minutes, the dashboard briefly flickered back on, enabling me to unlock the doors. AAA identified a dead 12V battery, replaced it at my expense, but the critical error persisted, causing another complete shutdown shortly thereafter. The vehicle was towed to Hyundai of Bedford, where technicians diagnosed the issue as a failed ICCU and fuse, parts that are now backordered due to high number of vehicals having this same issue. Alarmingly, Hyundai plans to replace these faulty parts with identical models, despite my vehicle having completed all recall updates. This means the dangerous malfunction could occur again without warning, posing ongoing severe safety risks to my child, myself and those around use. This deeply traumatic event exposed critical vulnerabilities in the Hyundai Ioniq 5, especially dangerous for families, elderly drivers, or anyone caught in similar emergencies. The absence of functional basic safety measures left my son and me unnecessarily vulnerable. My trust in this vehicle and any thing using the same ICCU is permanently broken. Hyundai urgently needs reliable, redundant safety systems to prevent such life-threatening scenarios. Until then, we cannot feel safe or secure in these vehicles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650780March 26, 2025
POWER TRAIN, ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
After all of recall software updates were applied the ICCU still failed with no warning beforehand and resulted in power and propulsion failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650776March 26, 2025
ENGINE, ELECTRICAL SYSTEM
The contact owns a 2024 Hyundai Ioniq 5. The contact stated that while his wife was driving approximately 30 MPH, the vehicle started losing motive power. The contact’s wife depressed the accelerator pedal; however, the vehicle shifted to first or second gear and failed to accelerate above 20 MPH. The contact stated there were no warnings illuminated. The contact stated that his wife pulled into a parking lot and the vehicle lost electrical power and was unable to be restarted. The contact had the vehicle towed to a dealer. The dealer diagnosed the vehicle and informed the contact that the vehicle had had a failure of a part that was on a national back order. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 11,000.
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
#11650176March 24, 2025
ELECTRICAL SYSTEM, ENGINE, VEHICLE SPEED CONTROL
On March 22, 2025, our 2022 Hyundai Ioniq 5 suffered a sudden, complete loss of power while driving at night, after receiving Hyundai’s recall service in January. While driving on city roads, the car displayed “Check Battery” errors despite the main EV battery showing ~75% charge. After stopping, we had AAA install a new 12V battery, which did not resolve the issue. Minutes later, while crossing a Y-shaped highway interchange, the car lost the ability to accelerate, leaving us stranded in a dangerous area. Hyundai Roadside Assistance gave an 89-minute ETA and failed to dispatch a tow capable of transporting our family of three. We were forced to call our insurance to tow the vehicle to safety. The car is now inoperable at a dealership. Hyundai has not followed up. This is a major safety concern — involving either the 12V system or software post-recall — and could impact other vehicles. Photos, screenshots, and documentation are available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649833March 21, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
I purchased this vehicle in 2023 I have had multiple problems with loss of power ICCU SOFTWARE UPDATES 2-3 per year. . Now my vehicle has been in the dealer for 31 days. Needs a new ICCU and Fuse. No parts no one will tell me when I will get my car fixed. There are 6 other Hyundai ionic 5 Cars sitting with no parts or repairs in sight. I want out of this vehicle it’s a Lemon Every time it has broken down I needed to call a tow truck. Can someone at NHTSA HELP ME? [XXX] [XXX] 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
#11649688March 21, 2025
ELECTRICAL SYSTEM, ENGINE, UNKNOWN OR OTHER
Car had 2 recalls and a diagnostic on 3/12/25. All checked out ok. It has 9,630 miles. 3/19/25 after driving 4 times throughout the day, it would not start or unlock. Roadside assistance jumped the 12v battery and drove it home. Drove it yesterday fully charged and worked. Then it would not start this morning. Dealer advised it was unsafe and to have it towed to dealership because they had another case where person was driving same car on the highway though and the car died. Please advise what my rights are for addressing this safely.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649439March 20, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
Upon attempting to merge onto a highway, the vehicle lost acceleration and a warning message appeared on the dash stating "Stop vehicle and check electrical system". Car speed was limited to 28 mph. I was able to exit and get the car to the dealership. This was on January 29th, 2025. Car was finally returned to me with a new ICCU on March 19th, 2025.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649428March 20, 2025
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
ICCU failure, loud pop sound and then a "Check Electrical System" then after a minute a turtle icon and the car slowed down and stopped on its own in the middle of a freeway. Hyundai towed it and waiting for repairs. This was highly dangerous stopping in the middle of the freeway with no control over the vehicle and fast cars driving by.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649366March 19, 2025
ELECTRICAL SYSTEM
These cars still have problems keeping the 12v charged. Car was leased on Jan 19. 12v first died on Feb 15, took it to dealer where they trickle charged it. 12v died again on Feb 18, dealer replaced the 12v. The 12v died again on Mar 11 and is still at dealer service center. Case with Hyundai corporate was opened and the dealer is going back and forth with them. When car is left alone for 5 days, the 12v appears as needing a replacement, so there is something wrong with the system that keeps the 12v charged or there is some parasitic drain somewhere that is hard for the Hyundai engineers to diagnose.
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
#11649259March 19, 2025
ELECTRICAL SYSTEM
The car made a loud popping sound as I was driving and then error messages appeared on my dash saying "Check electric vehicle system" and "Stop vehicle and check power supply". The car was slowed down to 20 mph on a 45 mph road and I pulled over to get out of traffic. Luckily I wasn't far from home so I drove back very slowly. I had the car towed to the dealership and they have indicated that the ICCU failed and needs to be replaced, but they don't have any available until possibly 4/1/25. There were no messages received prior to the failure.
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

← Back to Hyundai Ioniq 5