2024 Hyundai Ioniq 5

On [xxx], i was in new jersey waiting for my mother to finish shopping. in an effort to preserve battery life, i turned off the engine while waiting. upon her return, i placed my foot on the brake pedal and started the car. as soon as i shifted the gear into "drive," the vehicle made an unusual sound and began to roll forward. at no point did i remove my foot from the brake pedal, and i immediately applied more pressure. however, the brakes did not respond. panicked by the fact that a parked car was directly in front of me, i quickly shifted the gear into "park" to engage the emergency brake. fortunately, this action brought the vehicle to a stop, and no damage occurred. i turned the vehicle off and restarted it after which the brakes functioned properly. the experience was extremely alarming. this is not the first time i have experienced this issue. on [xxx], a similar incident occurred while i was stopped at a red light. at that time, i assumed i may not have applied sufficient pressure to the brake pedal. the car rolled forward and made contact with the vehicle in front of me, resulting in a minor accident and a cracked front headlight. given that this has now happened twice, i am concerned about the possibility of a recurring brake system failure and am worried for my safety and the safety of others. - brake failure, it is available for inspection upon request - if i didn’t act quickly and pressed the emergency brake, it would have resulted in an accident. damage to my car and damage to the car in front of me. and could have resulted in injury to myself. -i have not taken the vehicle to the dealership or service center yet as i have not driven it since the incident. however, i have scheduled an appointment for this upcoming weekend. -there were no warning lamps messages or other symptoms prior to the failure. information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)

-the integrated charging control unit (iccu) component failed. the vehicle experienced multiple electrical system warnings before losing functionality. the component should be available for inspection upon request. -the vehicle lost power while i was driving. the "stop vehicle" alert appeared, requiring me to immediately find a safe location. had this happened in high-speed traffic or an unsafe environment, it could have led to an accident or left me stranded in a hazardous situation. -the problem has been confirmed by a dealer. the vehicle has been inspected by the dealership following the issue, but it has not been examined by other entities such as police or insurance representatives. -yes, the “check electrical system” warning appeared twice briefly before disappearing weeks/months prior. however, no immediate issues followed those warnings at the time. the day of the failure, the "check electrical system" alert appeared again, followed by a "stop vehicle" warning a minute later. after pulling over safely, a "12v battery depletion" alarm also appeared.

Have gotten all recalls fixed associated with the iccu; car has less than 15000 miles on it and suddenly lost power, “check electrical system” and “power limited” lights flashing. we had no warning prior, and had just arrived back 2 days before from a long road trip. while i’m glad it happened while close to home, we still had to have our vehicle towed to the dealership and it took 3 business days to diagnose the issue (iccu failure). we were put at risk due to the sudden change of status and inability to access the contents of our car after the power died (including my toddlers car seat).

Car just died in the middle of a 3 lanes highway. it was the iccu issue, barely any warning to stop and then when it died, no light, 4 way flasher or anything to communicate to other drivers about our disabled vehicle. it was 3:30 am in the morning, had to call colorado highway patrol to come and help out while we waited for the tow truck. we found reports of the fail iccu, this is something that can put any family in a very unsafe situation.

Another complain for investigation pe 23-011. first car was doa, second had an exploding pop sound and no longer charges, car is no longer usable, only 200 miles.

1. uncertain which part failed. 2. safety was put at risk due to car not able to accelerate. car would not go over 20 miles an hour on the interstate access road where traffic was going by at 50 –60 mph - four-way flashers were on and had to pull off at the first available turn but it was scary 3. contacted local hyundai; they are investigating a possible loaner, but haven’t said what they will do. 4. no inspections yet. 5. no warning or unusual events prior to lack of power/lack of acceleration. 6. internet search showed that this problem has occurred to others.

The collision detection and early warning system behaves in a manner that deceives the driver into believing a collision is imminent every time the car begins to reverse out of a normal parking spot you find in a parking lot. despite the car knowing the vehicle is in the reverse gear the driver will begin receiving audible, visible, and haptic feedback alering the driver of an imminent collision. after pausing the procedure of vacating a parking spot to determine where the car has detected a collision the hud indicates that it is the sensors in the front of the car that were detecting a possible collision despite the car being in reverse and moving away from the objects the front sensors detected. furthermore, these alerts don't begin until you begin reversing which makes the situation very dangerous for all parties as the driver is now having to freeze and reassess again before proceeding. but the most dangerous problem about this scenario i am describing is that i as a driver have now gotten used to these "false" positives and as a result i assume any alerts i here while backing out are just the front sensors being noisy when it could be someones child behind the car i am driving. fix this! how was your safety or the safety of others put at risk? high risk. has the problem been reproduced or confirmed by a dealer or independent service center? yes. has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? yes. were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no. working as intended from all research i have found online from other ioniq 5 owners.

I took my 2024 limited ioniq 5 to the dealership [xxx] to have a tsb looked at and because on [xxx], i took out the cabin air filter out of the car, as i have been noticing a smell of chemical in the cabin of the car. i noticed that the filter was covered in blue windshield wiper fluid and smelled of the same chemical smell as what my wife and i had been smelling and what i believe has been giving us headaches on long trips when driving to san antonio, texas to visit our grandson over the last two months. the technicians at the hyundai dealership where i took my car had conducted an inspection and found the filter was covered in windshield fluid and noted that it is most likely caused by a defect in manufacturing or design within the vents where the fluid drains. which also means that rainwater or water from washing the car could also be going into the cabin air filter housing. the dealership informed me that they have taken pictures and will forward to hyundai as part of the process however they believe that this could result in a recall, as they noted that there is not a fix, they can provide to stop the fluid from going into the housing and that it is a health risk among other things. they noted that they believe this to be on the new 2024 models as they have not had the issue on the 2022-2023 models. i am concerned that drivers such as myself are being exposed to the effects of inhaling these fluids which include headaches, blurred vision, vomiting and other unpleasant effects related to inhaling the vapors from this fluid. i only have this one car and cannot simply avoid driving it in weather where i would have to use my wipers and fluid. i would like to have this defect corrected asap to avoid any long-term health effects. the dealership was unable to provide a loaner vehicle and i have to wait until hyundai is able to work a solution or more people complain about it. information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)

The contact owns a 2024 hyundai ioniq 5. the contact received notification of nhtsa campaign number: 24v204000 (electrical system) however, the part to do the recall repair was not yet available. the local dealer was not contacted. the contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. the manufacturer was not made aware of the issue. the contact had not experienced a failure. parts distribution disconnect.

While turning a corner at low speed to enter a parking lot, the right rear tire lifted up onto the curb. the car stopped at a parking spot 100ft later. a low tire pressure alarm indicated an issue, upon inspection there was an audible hiss and the right rear of the car was lower than the other sides. as there was no spare, roadside assistance was contacted and towed the car to the nearest dealership for estimate. the dealer found the right rear wheel was bent on the inside and the wheel, tire, pressure sensor would need to be replaced. the cost was $1,612.68 and was covered by insurance. the point of failure on the wheel was not at the site of impact with the curb. the right rear wheel/tire would touch the curb on the outside first. there was no observable damage to the outside wheel. the inside wheel would have been exposed to much less force, most due to the mass of the car lifted on that corner. if not related to the specific wheel, but to the design, repeat incidents can happen when hitting potholes or other road obstacles/debris and result in a quick deflation while at speed. there was no visible damage, cracks, impressions on the tire. only the rim was visibly damaged by this incident. the car had been purchased 4 days prior.

My vehicle was 4 weeks old. on friday 6/28/24, my vehicle displayed the following message on the dashboard, "check brake system". it disappeared later, and reappeared on the next day. i checked hyundai's app, bluelink. there was a alert on bluelink, "attention needed". i opened the alert and it said that there was a diagnostic trouble code, dtc c123501, that originated on 6/30/24. i took the vehicle to the dealership, hyundai of north miami, on the next business day, [xxx]. that morning, [xxx], as i started the vehicle, as i stepped on the brake to start the vehicle, the brake was considered "softer" than it was prior and i could feel the brake pedal go nearly all the way down to the base of the vehicle floor. on [xxx] they informed me that the iccu needed to be replaced. they said that they hoped to have the ability to order the part on 7/5/24, as the computer system needed to do so was not working, and the part could potentially arrive in approximately 1 week. information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6)

Auto lost all power. no instruments visible. propulsion system would not charge. thankfully vehicle at a stop when occurred. unable to drive. car as dead as a home in a power outage. everything dark. nothing electrical worked. had to use emergency manual key to enter vehicle. tow truck driver said this was the 4th hyundai ioniq 5 he towed that week. all dead. car at dealer awaiting diagnostics, which because of backlog, could take 3 or 4 weeks.

The car lost propulsion and displayed check vehicle electric system. now the it’s sitting at the dealership for over 30 days waiting for parts.

Backing vehicle out of driveway and went to engage brakes and they did not engage. began rolling backwards down street with steep grade. kept stepping on brakes with no response. had to turn into a parked vehicle to keep from rolling down steep grade and potentially off a substantial cliff. happened today and dealership said that it may be because the "battery for the brake" had not received a charge from the main battery. very dangerous and never disclosed. if i had not taken evasive action i could have easily been killed. car is being dropped off at collision center today but is available for inspection. there were no warnings or other symptoms.

I am writing to report serious issues with my 2024 hyundai ioniq 5 sel, purchased on may 24, 2024, with approximately 3,000 miles driven. these problems have raised significant concerns about the vehicle's reliability and safety. the first incident occurred on july 22, 2024. i attempted to start the car in my driveway, and while the engine turned on, the vehicle suddenly lost power, and all electrical components became non-functional. there were no error messages, and the display showed all systems as normal. it seemed to function normally after turning the vehicle off and on again, but this unexpected power loss was alarming. the problems continued today, august 3, 2024. at around 8 am, when i tried to start the car again, the system flickered twice and then shut off entirely. i contacted roadside assistance, and the car required a battery charge for about six hours before it could start again. this evening, while driving at approximately 15 miles per hour in my subdivision, the vehicle suddenly lost power after only a few minutes. this abrupt power loss posed a significant safety risk, and i was fortunate to avoid an accident. i contacted the dealer who sold me the vehicle, but they informed me that they could do nothing remotely and advised me to have the car towed to their location. it is extremely concerning and frustrating to encounter such severe issues with a new vehicle. given the repeated and unpredictable nature of these problems, i urge hyundai to take immediate action to investigate and resolve these issues. i am also concerned that other owners may be experiencing similar problems, indicating a potential widespread issue with this model. i am seeking urgent assistance to address these issues and ensure the safety and reliability of my vehicle. thank you for your prompt attention to this matter.

I was driving on the highway and a message appeared that said “check electrical system”. the power in the car then completely bottomed out and i could not go above 25 mph.

Overnight, the windshield spontaneously developed a huge crack going from the a-pillar to halfway across the windshield. the car was parked at the time.

When on a highway with lane-keeping assist engaged, the car sometimes steers into the left-hand lane. it seems to happen most often when the road bends to the right. the car straddles the lane divider into the fast lane to the left. this occurs in otherwise perfect conditions: sunny, dry days on roads with clear white stripes demarking the lanes. i must fight with it to get it back in the proper lane. this is very dangerous. i'm convinced it will cause a high-speed crash. another driver i spoke with said she had seen the same problem and wouldn't use the lane guidance because of it. i'm extremely cautious when i use it now. the problem has happened multiple times.

Car will randomly start giving warning messages (while driving or parked). messages include pull over and check brake system, lane departure system failure, check battery, the speedometer will read 0 while driving, among multiple others. dealership has ' fixed' multiple times, replacing fuses, bumper, sensors, but the problem keeps happening

I received this car new on 9/2/2024. i was driving at the freeway speed of traffic on 9/5/2024 when there was a sudden alarm and warning lights flashing on the dashboard with a message that said “stop vehicle and check brake system.” at this same time, the brakes stopped functioning normally, and i had to use extreme pressure with my foot pressing down on the brake pedal all the way to the floor to have the car slow down even marginally. all of this happened with traffic in front, behind, and on both sides of me going 65 mph! i was very luckily able to maneuver to the right lane and slowly decrease speed without getting rear-ended and without slamming into a car in front of me while going at high speed unable to stop. while waiting for a tow, i left the car on, as i slowly edged forward to a safer stopping location. the flashing red ring around the message to “stop vehicle and check brake system” remained, and then just after moving forward, another message with an amber circle around it said “check abs system.” this latter message stayed on for only a short time, then was replaced by the initial message. i had the car towed to the dealership, and their assessment was that there was a failure of the iep module that communicates between aspects of the braking system. the final service report is attached, confirming the need for replacement of the iep assembly. i was very lucky to come away from this event with nothing more than a very frightening experience. i hope that this report will initiate a recall to prevent a similar situation happening to someone else, and hopefully avoid tragedy involving serious injury or death.

Went to charge at ac charger and found that it would not charge. tried another charger and same thing occurred. car would say 0.3kw and than stop charging. dealer said iccu issue.

When driving in i-pedal, which is a "one pedal driving option", sometimes after pausing the car rolls backs several inches. this appears to be a defect with the powetrain, regenerative braking engine, or otherwise. hyundai's dealership has been advised of this issue; they have escalated this internally. a car in drive forward should never due to electrical or software reasons be told to move backwards -- which is what is happening here.

1. brake failure: recently when my brakes stopped responding while driving.the pedal went all the way to the floor, and i barely managed to stop the car. 2. knocking sound when braking: i started to notice a clunking/knocking sound that would occur when braking and just about coming to a stop.

Received orange warning “power limited”. a minute or so later received red warning “stop vehicle and check power supply”. less than a minute later the car stopped and turned off completely, even the hazard lights would not flash. tow truck was unable to tow because the car could not be taken out of park, wheels locked. also, as soon as the warnings started the power steering failed and the car was very difficult to maneuver. the combination of difficult maneuvering followed by unable to move could be very dangerous in the wrong situation.

It is impossible to see through the back window when it rains. it has no wiper--and unlike other cars, it is not aerodynamic and does not push rain off the back windshield. when it rains, you cannot see anything. due to the location of the backup camera, it also becomes wet and you cannot see anything when doing in reverse through the window or backup camera when it's raining.

Hyundai has installed faulty 12v batteries in the ioniq 5 series cars. the oem battery fails, resulting in an emergency stop or failure to start. hyundai refuses to acknowledge the faulty batteries, yet the resolution found by numerous consumes to resolve the issue has been to purchase and install the correct 12v battery. despite going to the dealership to seek a remedy, they refused to replace the faulty battery. they asked for the dead car to be towed into them, but hyundai roadside assistance is unable to have towed a dead ev. 5 times the car died in the first 6 months of ownership. hundreds if not thousands of us owners online have reported the faulty 12v issue to hyundai, received no working repairs, and ultimately replaced their batteries at their cost.

12v battery dead. it is only 5 months and the start battery is dead. i needed jump start and the problem reoccurring. i hear this is a common problem for all hi 5 models. so why it is not part of recall? dealership is asking money for replacement. repeated reoccurring dead battery issue.

The contact owns a 2024 hyundai ioniq 5. the contact received notification of nhtsa campaign number: 24v868000 (electrical system); however, the part to do the recall repair was unavailable. the contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. the manufacturer was made aware of the issue. the contact had not experienced a failure. parts distribution disconnect.

Our 8-mo old 9800 mile ioniq 5 failed to maintain its 12v battery while parked for a week. it was dead when we came back to it. jump started successfully. i replaced the oem battery with an agm battery, which the car failed to maintain charge on after 2 weeks. at that time, while driving, the car displayed "stop vehicle and check power supply" and "check vehicle electrical system." i had a battery monitor installed which showed the car only had 44% charge left in a new 12v battery. by the time we made it to the dealer 15 minutes away, the car was barely above 20% on its battery, and was about to stop on the road. the car has been diagnosed with an iccu failure and replacement parts are 2+ months backordered. this car appears to brick itself without much warning to the driver -- and clearly hyundai's software-only recalls are not fixing the root cause of this dangerous safety issue.

Started car and proceeded to drive to work. 1 mile from home, heard a "pop" noise and the car displayed "check electric vehicle system" warning and went into a "turtle" mode that limited speed. luckily i was on a side street and had not yet made the turn onto the main highway or it may have obstructed traffic or resulted in a crash. i was able to return home and have the car towed back to a hyundai dealer for diagnosis and repair. the dealer identified the issue as the iccu fuse and iccu itself that needed replacing. all previous recalls and software updates were completed, including the latest iccu recall (272?) which was completed on december 3. there have now been multiple software updates and recalls targeting this part, but it still resulted in the vehicle losing power and being inoperable.

Iccu failure

Battery warning appeared. car stopped after a few minutes. car can’t be started. complete list of power. dealer confirmed it was the iccu. i had a recall service done in 11.19.2024y last time i got an info about a recall was 1.9.2024

Car won't super charge. iccu has been backordered for a month.

Car had a warning check electrical system and the 12volt drained. iccu failed car undrivable.

About 2 minutes after i started driving, i got a "stop vehicle and check power supply" warning. the car slower to about 20 mph and would not go any faster. after returning home, i had the car towed to the dealership. hyundai said that the iccu unit failed. this was days after the same dealer performed recall work that was supposed to address iccu issues.

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.

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.

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.

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.

Iccu failed while driving. causing the car to dangerously decelerate with little to no warning. the car then bricked itself on the side of the road. diagnoses is a failed iccu. this failure was insanely dangerous as the car lost all power and would not accelerate.

I purchased a 2024 ionic 5 on january 29th on a day without rain/snow. the first time it rained i found out that there was no rear wiper. i assumed there to be one as its a suv with a slanted back window, not straight up and down. when it rains or snows the water/snow just sits on the back window, making it impossible to see out the back window. i know every ionic 5 is like this. on researching the 2025's now have them due to customer feedback. i don't believe this is a convenience issue, but a safety one not being able to see out the back window.

The integrated charging control unit (iccu) failed while i was driving to work. i was on the highway in the middle of a blizzard and the "check electric vehicle systems" warning popped up on my dash. it then when into a turtle mode and my car would no longer go above 15 - 20 mph. i had to exit the freeway very abruptly because my speed was dropping quickly. it was already extremely dangerous driving that day, this just added on top of it. it is available for inspection, it's been sitting at my dealership since march 6th because the iccu is back ordered and there is no eta when one will become available. the dealership has inspected and confirmed it is a faulty iccu. there were no other problems with the car until the warning appeared on the dash. the iccu has had 3 manufacturer recalls for the iccu previously. which i have gone in to the dealership for.

Error message indicate loss of charge capacity. car slowed down, with enough range to pull off the road. dealer indicates the integrated charge control unit (iccu) failed, and quit charging the 12 volt system. waiting for parts (1 month so far). seems like the same issue reported under nhtsa recall 272 for the ioniq 5 does hyundai have a list of failed iccu’s, and whether there might be a batch of these units that are failing, or is this just a random occurrence?

On june 8, 2023, the office of defect investigation (odi) opened pe23011 to investigate allegations of loss of motor power on model year (my) 2022 hyundai ioniq 5 vehicles. some consumers reported loss of motor power immediately after a warning lamp illumination or reduction of motive power while the vehicle was in motion. this investigation found that the integrated charging control unit (iccu) may be subject to various conditions such as overcurrent, overvoltage induced at the end of charging, and certain thermal loading during operation that can damage its internal components and open the iccu fuse, resulting in an inability to charge the 12-volt battery. the vehicle could eventually lose all motive power, increasing the risk of a crash. in july 2023, hyundai issued a service campaign to address certain my 2022-2023 ioniq 5 and my 2023 ioniq 6 vehicles that may have low 12v auxiliary battery charging occurrences due to an iccu fault and may set the dtc p1a9096 “dc/dc converter input voltage sensor fault”. on march 15, 2024, hyundai filed safety recall 24v-204 for 98,878 my 2022-2024 hyundai ioniq 5 vehicles and my 2023-2024 hyundai ioniq 6, genesis gv60, genesis gv70 “electrified” and genesis g80 “electrified” vehicles. the recall remedy provides an inspection, and if necessary, a replacement of the iccu and the associated fuse. the iccu software reduces the risk of overcurrent and implements voltage peak reduction at the end of ev battery charging. the recall also includes a software update that revises the electric water pump operational threshold to reduce thermal loading during charging and driving. in view of the recall action being taken by hyundai, odi is closing this preliminary evaluation. the agency reserves the right to take additional action if warranted by future circumstances. to review the reports cited in the closing resume odi report identification number document, go to nhtsa.gov.

On june 8, 2023, the office of defect investigation (odi) opened pe23011 to investigate allegations of loss of motor power on model year (my) 2022 hyundai ioniq 5 vehicles. some consumers reported loss of motor power immediately after a warning lamp illumination or reduction of motive power while the vehicle was in motion. this investigation found that the integrated charging control unit (iccu) may be subject to various conditions such as overcurrent, overvoltage induced at the end of charging, and certain thermal loading during operation that can damage its internal components and open the iccu fuse, resulting in an inability to charge the 12-volt battery. the vehicle could eventually lose all motive power, increasing the risk of a crash. in july 2023, hyundai issued a service campaign to address certain my 2022-2023 ioniq 5 and my 2023 ioniq 6 vehicles that may have low 12v auxiliary battery charging occurrences due to an iccu fault and may set the dtc p1a9096 “dc/dc converter input voltage sensor fault”. on march 15, 2024, hyundai filed safety recall 24v-204 for 98,878 my 2022-2024 hyundai ioniq 5 vehicles and my 2023-2024 hyundai ioniq 6, genesis gv60, genesis gv70 “electrified” and genesis g80 “electrified” vehicles. the recall remedy provides an inspection, and if necessary, a replacement of the iccu and the associated fuse. the iccu software reduces the risk of overcurrent and implements voltage peak reduction at the end of ev battery charging. the recall also includes a software update that revises the electric water pump operational threshold to reduce thermal loading during charging and driving. in view of the recall action being taken by hyundai, odi is closing this preliminary evaluation. the agency reserves the right to take additional action if warranted by future circumstances. to review the reports cited in the closing resume odi report identification number document, go to nhtsa.gov.