Hyundai Ioniq 5 Complaints (2023)

385 consumer complaints on file.

#11642879February 15, 2025
ELECTRICAL SYSTEM
The 12v battery had zero energy after an overnight charge of the HV battery. The car was driven yesterday for 400 miles and three DC charge events. The car was plugged into my level 2 charger at 11 pm and it charged the HV battery to 100% overnight. Today, I was able to unlock the car electrically, but that appeared to be the last action the 12v battery could perform. All displays were dark, I could not start the car, and the emergency flashers would not work. The HV battery was at 100% from the overnight level 2 charge because the indicator lights by the charger were all lit and when I applied a jump pack to the 12v battery, the dash indicated 100% battery level. I was able to put the car in neutral by applying the jump pack to the 12v battery so the car could be pulled up the flatbed tow truck. This car has had all recalls performed. Please open a new investigation regarding the ICCU failure because it is clear from the data that Hyundai has not resolved the problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11642790February 14, 2025
ELECTRICAL SYSTEM
My vehicle will not charge with my Chargepoint Home Charger. It only charges on a DC High capacity charger. I have completed all of the recalls at the dealership where I purchased the car. The service manager told me the vehicle is unsafe to drive. It has been at the dealership for two weeks while waiting for a backordered ICCU. The repair will take place upon receipt of the part. I have no faith that the repair will work. In any case I am now afraid to drive the vehicle even if the dealer says it is repaired.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11642666February 14, 2025
ELECTRICAL SYSTEM, ENGINE
Have had 2-12v battery issues and now an ICCU failure with about 28 days at the dealership with no parts to repair. Seems to a common issue popping up
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641623February 10, 2025
ENGINE, ELECTRICAL SYSTEM, POWER TRAIN
Car stopped driving. got a check power systems error and car went into limp mode then stopped altogether
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640671February 4, 2025
FUEL/PROPULSION SYSTEM
June 2023 - 12 volt battery discharged overnight on consecutive nights. Dealer service eventually claimed that the problem was the navigation head unit was faulty and continued to draw current after the vehicle was turned off. The process took over 4 weeks to remedy since the necessary part was unavailable. January 2025 - While driving, a warning to stop the vehicle and check the power system appeared. After a few minutes the vehicle lost power and went into "limp home mode" which limits the vehicle to 25 mph. This problem was attributed to a failed ICCU. However, due to lack of availability the vehicle has been in the service department of the dealer for 3 weeks (Jan 17,2025 to Feb 4, 2025). The dealer estimates that it will be at least Feb 14, 2025 before the car can be repaired. While these two incidents may be unrelated, the result has been the same: the 12 volt battery does not stay charged up rendering the vehicle unusable. For drivers and passengers it is unsafe to operate the vehicle when speed is limited to 25 mph. I understand there is a recall on this part, but Hyundai's lack of support for providing replacement parts in a timely manner is causing owners of these vehicles to continue to drive them until the part actually fails which often happens at an inopportune time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640303February 3, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: ASSIST, LANE DEPARTURE: WARNING
Condensation builds in front of the camera. The car starts jerking all over the road with no warning. There is no error other than noticing that the car cannot keep itself in the lane. When trying to disable the features, they get turned back on automatically.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640302February 3, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
There is a known issue with the ICCU fuse. Mine blew this morning while driving and vehicle went into limp mode. Max speed is 20 mph and this is not safe on the highway. Vehicle completely died because the 12V can’t be charged with the blown fuse.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640219February 2, 2025
POWER TRAIN, ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
I was pulling into my driveway and I heard a "clunk" and then an error appeared on the dashboard saying "Check electric vehicle system." My 12V battery then died. After recharging the 12V battery with an external charger, the "Check electric vehicle system" message came up again when I started the car, and I could only drive a block or so before another message on the dashboard said "Stop vehicle and check power supply." I had the vehicle towed to a Hyundai dealer where it is waiting for them to diagnose the problem. I had all of the ICCU software update recalls performed on the vehicle before this latest problem occurred.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639771January 30, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
This car has had several recalls. On 12/9/24 I brought it to dealer re the ICCU update. Apparently what was done was just a software update. On 1/8/25 while driving 50 mph, the car suddenly lost power in traffic. Flat bedded to the dealer, they had to replace the ICCU. Todays Consumer Reports states that the ICCU recall was to replace the ICCU. Clearly the software update or check FAILED, putting me and other motorists at risk that night. I always thought a recall was a repair/replace situation, not an update/check situation. Being told by the service mgr that after all, it's a $3000 part, so if it's OK they don't just replace it. Huh? What? Not replacing it as a recalled problem is a problem. Their software update failed clearly, and now I'm afraid to use the car other than locally. The warning lamps came on only as soon as power was lost and slimply said "check electrical system". No warning BEFORE the event. I think the manufacturer's solution is a non solution, ineffective and dangerous to the motorists. In addition, I got the 4 or 5 recalls already on this car I've had for under 2 years now from my insurance company, not from Hyundai. What's with that? I would be happy to speak with someone about this. I've called the manufacturer and they read to me off of a script.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638544January 25, 2025
ELECTRICAL SYSTEM
After an ICCU recall was mitigated, vehicle charging failed before achieving requested charge level. I asked for 80% and I noticed that it only charged to 72%. After driving for a few minutes, vehicle appeared to enter limp mode and then the 12 volt battery died disabling the vehicle. I had to provide an external 12 volts in order to get the vehicle back into my garage so I could notify the dealership. Dealership indicated it would be about 6 weeks before The car could be diagnosed, let alone fixed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637172January 20, 2025
ELECTRICAL SYSTEM
iccu failure. Hyundai may be trying to hide data as they are not processing this as a recall but just as a warranty service. battery light Turner on and car went on a crawl mode. I had the car towed to dealer and they confirmed it needed a new iccu. my new 3 month 12v. battery was ruined and they refused to replace as it was not from factory. this is my second 12v battery in one year. after replacing the iccu, the fuse blew. please see that hyundai is not hiding crucial data from the public
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11636608January 17, 2025
ELECTRICAL SYSTEM
ICCU failed while charging. Vehicle showed no diagnostic codes to indicate the problem. All recent recalls regarding the ICCU performed on the vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11635762January 13, 2025
ELECTRICAL SYSTEM
Our 2023 Hyundai Ioniq 5 went completely dead on the evening of [XXX]. There were no warning signs/messages prior to it. It just would not start and none of the electrical systems (dashboard, lights etc) worked either. We became aware of the recall involving defective ICCU causing depletion of the 12 volt battery. We called nearby dealerships but their service departments were closed because it was the weekend. On Monday January 13, 2025, we were able to get in touch with the Hyundai dealership in El Monte, CA. Their service personnel instructed us to jump start the car and bring it in for service, which we did around 8am the same day. Around 2:30pm, we received a call from the El Monte dealership saying that they are not able to address the issues with our car because the dealership who sold us the car (Garden Grove Hyundai), had installed/wired a non-factory-certified GPS device (LoJack) into our car (unbeknownst to us), which was interfering with troubleshooting. The El Monte service person recommended that the car be transferred to the Garden Grove Hyundai dealership. He also stated that he would not recommend driving the car to the Garden Grove dealership since it may pose a safety risk. He said that it's possible that the car may suddenly die without warning while we are driving. We spoke with Hyundai roadside assistance, Hyundai customer care, and then the Garden Grove dealership, only to be told that it is not their responsibility to transfer the car, despite it being a safety risk to drive the car. The Garden Grove service person kept insisting that it's safe to drive the car and to just drive it over, which made us extremely uncomfortable. Nobody has taken ownership/responsibility for what has happened and the customer service has been awful. We have wasted the entire afternoon of January 13, 2025 being on numerous phone calls with no resolution in sight. 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
#11635643January 13, 2025
ELECTRICAL SYSTEM
There was no major safety issue in this instance. My concern is this poses a severe risk if it happened while driving. The car was on and in ready to drive mode but was parked in the garage with climate control on while loading it for going to school. At somepoint between trips to the car over 20 minutes it died with no warning. Some lights behind buttons, the interior lights, and the screens were on but blank. Not a single button in the car would respond. Including hazards or opening the trunk or closing the charging port door. Lights like the LED for the overhead light button blinked and the charging indicator by the charging port blinked a pattern of 1 longer flash and 8 shorter flashes. The car would not shut off or on again another button that was completely unresponsive. The lights and screen stayed on for at least 30 minutes before I left with a Lyft to get the kids to school. An hour and a half later everything was off and it seemed to have no power. At that point I did figure out how to jump it and get it to the dealer. The dealer claims the 12V battery died and that was the only issue and completed the 2 open recalls. There was no indication when I started the car that anything was wrong or the 12v battery was low or needed replacing. There are apparently no error codes from it completely failing while in ready mode. I was only told this happened because it was in park and the 12V battery failed while it was on and parked, if I had been driving I would still have use of the vehicle as the recall outlined for a failed ICCU when the 12V battery drains. They can find nothing else wrong but my concern is that a failed 12V battery could cause this while driving. I was told simply it cannot happen because the software handles it differently when driving. I hope that is correct.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11635136January 9, 2025
UNKNOWN OR OTHER
The manufacturer sent me a letter about a recall and in the letter stated that this should be fixed promptly because the defect could increase the risk of a crash. I called my local dealership and they could not provide me with an appoinment for 3 months. When I told them that I was worried about risk of crash they dismissed that and told me that they had not heard of a crash from this problem. I called Hyundai and filed a complaint, case #[XXX]. They also called the dealership and they could not get a sooner appointment but they offer for me to drop the car off and leave it for 7-10 days and they would get to it when they could. They would not give me a loaner car, that would be at my expense. I feel that this delay could potentially cause me to have an accident and injure myself and possibly others. In order to get it done sooner it would cost me a rental car. This repair is supposed to be done in a timely fashion and at no expense to me. Hyundai could not resolve my issue. The local dealership is Crown Hyundai in St Petersburg FL where I purchased the vehicle. 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
#11634580January 7, 2025
ELECTRICAL SYSTEM
Hyundai service department confirmed the ICCU needs to be replaced but is on back order for 5-6 weeks
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11634173January 5, 2025
ELECTRICAL SYSTEM, ENGINE, UNKNOWN OR OTHER
The car has had multiple recalls for the ICCU failure. I have brought the car in been 3 times. Will go in again this week . The recall remedy never fixes the issue. The car works for a few weeks then the same issue happens again .Unable to start the car or drive . Has been going on since June 2024.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11633557January 1, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING, BACK OVER PREVENTION: WARNINGS
The rear video camera fails intermittently. It works sometimes and doesn't at times. The same with the rear cross traffic warning and pedestrian warning. I've taken my car to the dealer service center but they claim to not being able to reproduce the issue. I know the issue still exists since my husband hit a parked car while backing out of a driveway since there was no alert provided and the rear camera did not work.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11633547January 1, 2025
ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL
Several days ago, the twelve volt battery on my car was replaced because the car just suddenly died overnight while sitting in my garage. They told me that the battery needed to be replaced when I went to the dealer. They replaced it and now less than a week later, I was driving on the highway and suddenly the car Slowed to no more than 27 miles an hour with warnings about the electrical system not working and a problem with the battery. I had to put my flashers on while I was driving down the highway until I was able to pull off and have the car towed to another dealer that was closer to the scene. Not sure what they are going to say, but obviously this was very scary as well as a nuisance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632909December 28, 2024
ELECTRICAL SYSTEM
I was sitting in my parked vehicle, which I had just turned on. It was cold so I turned on the seat warmer. About a minute later, I hear a pop and saw a “check electric vehicle system” warning on my dash, followed by an audible alarm and a new “stop vehicle and check power supply” warning on the dash. I decided to have the vehicle towed to my local Hyundai dealer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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