2023 Hyundai Ioniq 6

These are unverified consumer reports filed with NHTSA, shown as submitted.

• 12/28/2023· BACK OVER PREVENTION

  The contact owns a 2023 Hyundai Ioniq 6. The contact stated that while reversing, the brake lights interfered with the optics of the back-up camera. The inference caused the camera image to be distorted which affected the visibility while reversing. There was no warning light illuminated. The contact stated that the failure persisted. The vehicle was taken to the dealer to be diagnosed; however, the vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 3,518.

• 12/27/2025· UNKNOWN OR OTHER

  The horn from my car has stopped working entirely. By having this system fail it endangers me from other clueless drivers on the road.

• 12/24/2023· FORWARD COLLISION AVOIDANCE

  My Ioniq 6 Limited AWD experienced a phantom braking event in a covered parking lot with no cars or pedestrians anywhere near the front of my car. The car just stopped suddenly with a warning message "Emergency Braking", and it wouldn't allow me to proceed until I turned off the car and then turned it back on. Fortunately, there wasn't a car close behind me at the time, but it could have triggered a rear end collision. Prior to this phantom braking incident, but on the same short drive, I noticed that the car incorrectly showed a red line indicating that the driver's side of my car was extremely close to some object, even though visual inspection confirmed that there was nothing there.

• 12/19/2023· EXTERIOR LIGHTING

  Headlights do not illuminate the road properly, there are dark spot in front of the car specially on the driver side. Making a turn there is ZERO visibility ( almost went into the median road ) because I do not see anything on the sides. The headlights do not " flood the road " Hyundai say this about the headlight and is very misleading. I drive a lot specially at night I am afraid to drive the car like that. A 2023 52k should not have these issues. BIG safety issues. To have a dealer check the car out I have to wait a month, so I am waiting. Please see the link below here is what Hyundai says about the " state of the art " headlights. Even driving in the city visibility is very bad. [XXX] . Thanks. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 12/18/2025· ELECTRICAL SYSTEM

  The contact owns a 2023 Hyundai Ioniq 6. The contact received notification of NHTSA Campaign Number: 24V868000 (Electrical System), and the vehicle was taken to the dealer, where a software update was performed. The contact stated that the vehicle was charged at the residence, and the contact received notification through the Mobile App that the big battery charge was 80 percent. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The vehicle was towed to the dealer, where it was determined that the 12-Volt battery was completely drained and needed to be replaced. The contact stated that the recall remedy was intended to ensure that the big battery charged the 12-Volt battery during a charging session, but the recall remedy had failed to correct the issue as intended. The dealer informed the contact that the battery needed to be replaced prior to another attempt to perform the recall repair. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 55,000.

• 12/12/2024· ELECTRICAL SYSTEM,ENGINE

  The dashboard error code (check vehicle power supply) also in the bluelink app the error code(DTC P1A9096). I was driving the car. It was 196 miles of range. The car suddenly went into turtle mode and then the car just died in the middle of the road. Luckily I was outside my residence. After waiting 4 hour for towing. I had it towed to the dealership.

• 12/08/2025· UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM

  The ICCU on my 2023 Hyundai Ioniq 6 failed on December 5, 2025 after 19,616 miles. Luckily, the car was parked in my driveway when this occurred. If the car was in motion when the ICCU failure occurred it would have been very dangerous. The car cannot be driven. The car's system shows Hyundai Diagnostic Trouble Code (DTC) P1A906. The problem has been confirmed by a dealer. A new ICCU has been ordered. The car is under warranty and the dealer provided a loaner car while my car is being repaired.

• 11/29/2024· UNKNOWN OR OTHER

  Horn stopped working 18 months into owning the car. Numerous other drivers report the same issue.

• 11/28/2025· STRUCTURE

  Subject: Safety Complaint – Sharp Upper Door Edge Causing Facial Injury (Hyundai IONIQ 6, 2023) Message: To whom it may concern, I would like to submit a safety complaint regarding my 2023 Hyundai IONIQ 6 (VIN: [XXX] ). On October 14, 2024, my wife suffered a facial injury caused by an extremely sharp upper edge of the front door. This occurred in our driveway at [XXX] . The injury happened when the front door stopped at its mid-detent position and the sharp, exposed upper edge made forceful contact with her forehead and the area next to her eye. She avoided a direct eye injury only due to quick reflex. This design presents a serious risk to passengers, especially those of shorter stature. I have photographic documentation showing the sharp door edge and the injury mechanism. Hyundai Motor America was informed, but they dismissed the case and advised us simply to “be more careful.” They offered a $150 virtual compensation card, which I did not use, because accepting it could be interpreted as accepting their proposed settlement. Hyundai insisted on dealer inspection, which is irrelevant because this is not a defect of a single unit — all vehicles of this model have the same door-edge geometry. I believe this is a safety-related design hazard affecting all Hyundai IONIQ 6 vehicles. I respectfully request that NHTSA review this case, as the risk of eye or facial injury is significant. Please let me know if you require additional information or photographs. Sincerely, [XXX] [XXX] Phone [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 11/18/2023· VEHICLE SPEED CONTROL,ENGINE,FUEL/PROPULSION SYSTEM

  My Ioniq6 slowed down to 20 mph for the second time tonight. No matter how hard I pressed on the accelerator the car would not speed up past 20 mph. A message on the dashboard said “Limit: 20 mph”. Eventually the car picked up speed then said “Limit: 43 mph”. (The speed limit on University Blvd at this point was 35 mph). I did not test that, as I was almost home. This happened around 7pm on Saturday, Nov 18, 2023. My wife was in the car with me and asked why I was driving so slowly. The first time this happened, a couple weeks ago, I don’t recall seeing a message on the dashboard. I fiddled with some of the controls on the steering wheel and it sped up. So I thought I had fixed it.

• 10/30/2025· ELECTRICAL SYSTEM

  Honk not working fuses are fine second time taking it to dealer to repairs honk at 33k miles

• 10/21/2025· ELECTRICAL SYSTEM

  The contact owns a 2023 Hyundai Ioniq6. The contact stated that while driving approximately 20-30 MPH and attempting to use the horn, the contact discovered that the horn was inoperable. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was determined that the horn needed to be replaced. The vehicle was repaired, but the failure recurred. The dealer failed to pre-order the part for the repair. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 12,500.

• 09/15/2025· ELECTRICAL SYSTEM

  ICCU Failure, unable to charge the 12v battery despite having all recalls associated with this already done. The error code is DTC P1A9096. The car is unable to drive with this error because it is at risk of shutting down while driving.

• 09/13/2025· ELECTRICAL SYSTEM

  Integrated charging control unit ICCU failed and was replaced by dealer. Warning light directed me to immediately pull over and have the car towed to the nearest dealer. Dealer confirmed ICCU failure with Diagnostic trouble code DTC P1A9096. Unknown whether the failed ICCU has been inspected by the manufacturer, police, insurance representatives or others. Warning lamps and messages appeared immediately upon the ICCU failure.

• 09/05/2025· ELECTRICAL SYSTEM

  The car horn malfunctioned. I was not able to warn other drivers I was approaching and they were about to hit me. The component was inspected and replaced over a year ago in May 2024 under the vehicle warranty. No warning lights appeared when it happened.

• 09/05/2024· ELECTRICAL SYSTEM

  iccu unit battery problem car will not start or cannot turn off engine no problem with car until dealership in a recall appointment upgraded software instead of a total replacement of the iccu unit as in directed in the recall in June 2023 The initial problem began1 in July 2023 replacement of recall of unit was not done by dealership simply installed new software recurring problem on 8/2023 Problem arose 3 weeks after the upgrade, the correction in July resulted again in a failure 3 weeks later on [XXX] danger to drive car is an Ionq6 Hyundai I believe there are many similar incidents as mine that have been reported to you Dr [XXX] email [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

• 08/03/2025· FORWARD COLLISION AVOIDANCE

  I was crossing the Mackinac Bridge, northbound, this afternoon, at the time traveling over the bridge deck's grates in the left lane. Traffic was backed up and I was traveling in the single-digit MPH. There was more that a car's length between myself and the next car ahead, and as I accelerated a little bit to close the distance my emergency braking activated. Fortunately, the car behind me was trailing by a little bit and was also traveling slowly.

• 07/27/2024· UNKNOWN OR OTHER

  Horn progressively not working. 2 components:high and low frequencies have died and the horn is kaput. Forty still under warranty in my case but seriously concerned for security while driving as this is sudden and unexpected!

• 07/19/2023· ELECTRICAL SYSTEM

  I have a 2023 Ioniq 5 that was purchased in June, 2023 and an 2023 Ioniq 6 that was purchased in April, 2023. I had a new Chargepoint Home Flex charger installed in April when I purchased my Ioniq 6 and set the charging current to 40 amps. The charger was hardwired directly to my service panel with the appropriate 6 gauge wire and 60 amp breaker. My Ioniq 6 reliably charged at 40 amps until early July when it started dropping the charge rate to 23 amps about 40 minutes into my charging session when using the level 2 charger at home. My Ioniq 5 only charged at 40 amps for the first week of ownership before starting to drop the charge rate to 23 amps. When this behavior started I plugged an OBD2 scanner in and was able to monitor the AC Charging Inlet temperature and noticed that the charge drop happened when the temperature reached 240F. This causes an issue when planning my charge times because they can essentially double, meaning that my vehicles are not ready for a trip by the estimated time. I am also concerned that having electronics that overheat on an EV may be a potential fire hazard in the future. One of the key reasons for purchasing these vehicles was the advertised charge times. I have appointments with the dealership to have both of these vehicles diagnosed.

• 07/15/2024· ELECTRICAL SYSTEM

  The contact owns a 2023 Hyundai Ioniq 6. The contact received notification of NHTSA Campaign Number: 24V204000 (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 stated that while attempting to charge the battery, the recharging system did not recognize that the vehicle was plugged into a charging station. The contact stated that the vehicle indicated "Charging Unsuccessful" and the contact had to connect and disconnect the charging cable several times until the vehicle was successfully charged. Additionally, the contact stated that the "Service Required" message was displayed along with a countdown for days remaining for the repair. Additionally, the contact reported that the electrical charge was drained, and the contact was unable to start the vehicle. The contact had the vehicle towed to a local dealer. The vehicle was not diagnosed and was not repaired. The contact related the failure to the recall. The failure mileage was 3,611. Parts distribution disconnect.

• 07/12/2025· ELECTRICAL SYSTEM

  ICCU failure. EV car flashed battery issues and could not drive. ICCU and 12 volt battery replaced after 10 days in dealership shop. Manufacturer inspected. Prior to issue electric hatchback closed half way then stalled. I drove to the dealership and asked them to check if there was something wrong. They closed the hatch manually and said the 12 volt battery was fine and the computer said something blocked the closure, I left the dealership and made it less than a mile before battery light went off (within 5 minutes of leaving dealership). Made it back to dealership in turtle mode and this time computer said the ICCU failed.

• 07/10/2023· ELECTRICAL SYSTEM

  Car's onboard AC charger overheats, I can replicate every time upon charging Poses fire hazard Dealer will not confirm, but TSB's have been issued to reduce the charging current (car no longer charges as advertised at time of purchase) Inspection performed by Ioniq certified dealer Warning first appeared June 2, 2023

• 07/08/2023· ELECTRICAL SYSTEM

  The Ioniq 6 is supposed to be able to charge at 48 amps. I bought a new Ioniq 6 in early June 2023. June 12 I had the level 2 Juice Box 48 amp charger installed. At least twice (I think three times), it would stop charging after about twenty minutes — the charge port appears to be overheating in certain situations. Please have Hyundai either fix the port (or other hardware) and/or software. They may not advertise 48 amp charging when so many users are having overheating problems. They need to own this and be accountable. Precisely this happened on the Ioniq 6 to me: https://youtu.be/uXi33MtrJAU

• 06/20/2025· FUEL/PROPULSION SYSTEM

  When driving the instrument panel displayed a warning message of electrical problem and stop the vehicle. BlueLink displayed failure code P1A9096 indicating ICCVU failure. Drove vehicle to local dealer where the ICCU/fuse was replaced.

• 06/07/2026· UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE

  My 2023 Ioniq 6 is not charging as it has for 3 years. When charging to 100% my app States 347 and 382 miles. It should be 361 as stated by Hyundai. What happens if I drive under 45 mph after 5 miles the miles goes down to 303. It is not working as stated. It is not holding miles properly.

• 06/04/2026· POWER TRAIN,ELECTRICAL SYSTEM

  The shift-by-wire system failed while the vehicle was being parked. The vehicle would not shift out of Drive; repeated attempts to engage Park resulted in Neutral only, with a "PARK malfunction. Engage parking brake when parking vehicle." warning displayed in the instrument cluster. Because this vehicle requires Park to be engaged before it can be powered off, the vehicle also could not be turned off. I was trapped with an energized vehicle that could not be secured in Park or shut down for approximately 30 minutes. A red 12-volt battery warning lamp was illuminated in the instrument cluster during the event (photo attached showing the malfunction message, Neutral gear state, and battery warning lamp). I secured the vehicle using the electronic parking brake. Safety risk: a vehicle that cannot engage Park or power off risks rollaway and leaves the driver unable to safely exit and secure the vehicle, particularly on a grade or in traffic. This is the second occurrence of a shift-to-park failure on this vehicle. The vehicle was previously taken to an authorized dealer for the same symptom; the dealer cleared diagnostic codes without repair and the problem recurred. The vehicle is scheduled for further dealer diagnosis and is available for inspection upon request. The ICCU recall remedy (Recall 272) was previously completed on this vehicle per the manufacturer's campaign records.

• 06/03/2025· ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM

  Left the house, made it a few miles from the house. Loud pop from the rear seat, warning lights came up on the dash limited power and check electrical system. Was limited to 25mph to drive home. All recalls were done prior to failure. Last recall was done approx 2 weeks prior to failure. ICCU was diagnosed as the failure and was replaced.

• 05/07/2026· POWER TRAIN

  While driving on the highway, there was a complete loss of power and steering. I was able to navigate to the side of the road. The vehicle would not start on multiple occasions, and no warning lights illuminated. The vehicle was taken to the dealer, where it was stated that the issue could not be duplicated. The vehicle was not repaired. The manufacturer was not notified of the issue. The approximate failure mileage was 18,000.

• 05/05/2026· POWER TRAIN,ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM

  In November of 2025 the vehicle displayed a "Check Eletrical System" error message. Shortly thereafter the vehicle decelerated to under 10mph as we were turning into traffic. We were able to drive it home (less than 1mi away) and then called the Dealership. The car was then towed to the dealer (but needed a jump as the 12v battery had drained). The dealer diagnosed a failure of the ICCU and replaced it. The vehicle was in the shop for approximately 2 weeks. More recently, on May 3rd of 2026, the vehicle experienced a complete deceleration as it was traveling through an intersection. No error lights or warning messages were displayed. I was only able to partially clear the intersection before the vehicle came to a complete stop. At this time the vehicle would not allow itself to be put into neutral so I could not push it out of the intersection. After approximately 5min of attempting to move the vehicle, it once again began responding to accelerator requests and I was able to drive it home. It is now with the dealer and I await their response.

• 05/02/2024· ELECTRICAL SYSTEM

  The horn stopped working. I was not able to warn other drivers they were cutting me off. The problem has been confirmed by the dealer. The high pitch horn was replaced and the low pitch horn was ordered for replacement. There were no warning lights or blown fuses.

• 04/25/2025· ELECTRICAL SYSTEM

  The Integrated Charging Control Unit (ICCU) failed in November 2024. Instrument panel warning indicated an electrical failure and that the vehicle should be stopped immediately. The Hyundai dealer identified Diagnostic Trouble Code (DTC) P1A9096 and per Service Campaign 997 Technical Service Bulletin 23-01-060H replaced the Integrated Charging Control Unit (ICCU). In December 2024 Recall 272 TSB 24-01-086H software upgrade installed to further address Integrated Charging Control Unit (ICCU) failure.

• 04/19/2026· POWER TRAIN,VEHICLE SPEED CONTROL,ENGINE

  I was pulling into a parking spot and my vehicle suddenly lurch forward, and I had to slam on the brakes quickly, scraping the front of the curb. I checked there was no warning lights. I checked the floor mat, and this was not impeding the accelerator pedal I am certainly I did not accidentally hit the accelerator instead of the brake.

• 04/12/2026· ELECTRICAL SYSTEM

  On March 19, 2026 my Hyundai Ioniq 6 broke. It was clearly the ICCU problem. The car went into turtle mode with a maximum speed of 22 miles an hour and told me to get to a safe area , stop the car and have it brought in. It was brought to my local Hyundai dealer and a few days later they confirmed it was the ICCU problem. This is a safety issue. Fortunately I was 1 mile from my house and did not get stranded. Hyundai has had four years to fix the problem and obviously they have not done so. The car was a 2023 with about 23,000 miles on it.

• 04/10/2026· ELECTRICAL SYSTEM

  I WAS DRIVING AND MY ELECTRICAL WARNING LIGHT CAME ON AGAIN FOR THE SECOND TIME IN A YEAR. I WAS TOLD IT WAS THE ICCU LAST YEAR AND THEY SAID IT WAS FIXED AND WOULDNT HAVE A PROBLEM AGAIN. I HAD TO RENT A CAR FOR ALMOST TWO MONTHS. THE SAME PROBLEM AGAIN WITH THE ICCU HAPPENED ABOUT A MONTH AGO AND THEY STILL HAVE MY CAR. IN A ANOTHER GAS RENTAL CAR.

• 03/27/2026· FUEL/PROPULSION SYSTEM

  The fuel door/charge door would not open. Conditions were such that I was safe and had sufficient range without charging, but were I farther from home this could have left me stranded. The problem has not been confirmed by a dealer, other service center, manufacturer, police, or insurance representative, though a friend was not able to open it either/confirmed the issue was not "user error". There were no warnings. The incident occurred after rain in the prior evening, followed by below freezing temperatures. The fuel/plug door opened in the afternoon when temperatures were warmer.

• 03/22/2025· UNKNOWN OR OTHER

  March 21st at around 7:30 PM, I was driving on the highway when my panoramic sunroof suddenly exploded—or shattered—completely out of nowhere. It was a clear night, no rain or debris, and there were no cars directly in front of me. Nothing hit it—no rocks, no objects—just a loud bang, and the glass was gone. I’ve got photos of the damage (attached), and it’s clear this wasn’t caused by an external impact. The glass blew outward, which makes me think it’s a manufacturing defect or stress in the material. Thankfully, no one was hurt, but this is a major safety issue.

• 03/22/2024· SEATS

  The driver seat is causing back, glute and groin pain. The car has been driven for only 1.7k miles, but the seat cushions already have so much give that one can easily feel the frame under the seat when sitting or pressing down with an open hand. The back of the seat has so much give that it is possible to feel the plastic behind the seat back cushion. I will include photos, but unfortunately it is rather difficult to capture the issue in photos. The issue is constant and ongoing. Aside from causing pain that is requiring medication, the uncomfortable seating is distracting and experiencing numbness in your legs while driving are both clear a safety concern. The dealership, as well as Hyundai USA’s customer service, are refusing to take any action on these concerns. Instead they have given me the run around for 4 months saying I should contact customer service or the dealership, respectively. The dealer has inspected the car, but maintains that there is no issue. I would be happy to get the car assessed by somebody independent if NHTSA as suggestions in that regard. The issue first became apparent after driving the car for daily commutes shortly after taking possession of it.

• 03/15/2026· ELECTRICAL SYSTEM,SERVICE BRAKES

  I leased a 2023 Ioniq 6 electric car on September 2023. Since leasing the vehicle, the vehicle has been towed four times for the same problem, the parking brake malfunctions rendering the vehicle unusable. I have multiple photos and videos documenting this. This has happened either after parking the vehicle and attempting to turn it off, or after turning on the car after being parked. The first three times this happened the vehicle remained in neutral and would not change into any other gear. The car would not turn off or lock. The last time it happened again the car stayed in neutral and would not change gears, but I was still able to turn it off and lock it. Below is a summary of all the times the car was towed and how many days it was in the dealer. 1.December 12, 2025 (towed to dealership #1) to December 19, 2025: 8 days, no action taken, unable to find the cause of the problem 2.December 20, 2025 (towed to dealership #1) to December 29, 2025: 10 days, no action taken, unable to find the cause of the problem. Note the car failed again the day after it was returned to me on December 19. 3.January 2, 2026 (towed to dealership #2) to January 13, 2026: 12 days. Changed the 12V battery and replaced the VCU, vehicle control unit as an educated guess based on conversations with the Hyundai engineering team as the initial diagnostic scan failed to pinpoint the problem. 4.March 12, 2026 (towed to dealership #2). As of tMarch 15, 2026 the car is in the dealership for repairs for the same problem. Since this problem is likely related to the electric car’s electronics, it has been both challenging to diagnose, and extremely unpredictable and dangerous when it happens without any previous actionable warnings. The fact that the parking brake malfunctions and cannot engage, and that in addition the car gets stuck in neutral, is an extremely serious safety concern that could result in an accident, injury or death.

• 03/14/2025· ELECTRICAL SYSTEM

  There are 2 horns; a high tone and a low tone. The low tone horn failed, making the horn sound difficult to hear. This same issue has been reported by many Ioniq 6 owners. I scheduled an appt w/ a Hyundai dealer and the defective horn was replaced. This happened when the vehicle had less than 3,000 miles.

• 03/10/2025· ELECTRICAL SYSTEM,UNKNOWN OR OTHER

  The horn on my vehicle is defective after 16000 miles. I am available to take it in for an inspection. I was almost backed into and I had no way of alerting the other driver. This problem has not been reproduced by my local dealership but it has been at other national and international dealerships per forums. I am unsure if this component has been inspected by the manufacturer, police, insurance company, etc. This problem was random without warning which makes this even more of a safety concern since I had no clue this was defective until I actually had to use it.

• 03/04/2026· ELECTRICAL SYSTEM

  The check electric vehicle system error message showed up on my dashboard, meaning the iccu has failed

• 02/20/2024· FORWARD COLLISION AVOIDANCE

  On the afternoon of February 12, 2024 (5:12pm), I was driving northbound on I-71 at highway speed, approximately 75mph. My Hyundai Ioniq 6 alerted me of a (non-existent) impending front-end collision, and within 1 second of the alert starting, the automatic emergency braking system activated. This resulted in the violent (and unexpected) braking of my car to around 25mph. There was no clear reason for the collision detection alert or the automatic emergency brake. The light was good and there was no significant weather. There were no vehicles immediately in front or behind me. (Nearest car in front was over a quarter mile away.) The force of the braking was sufficiently strong that I am still sore in my shoulder and back a week later. I am fortunate that there wasn't a car close behind me, as I likely would have been rear-ended due to the unexpected and abrupt nature of the braking. The vehicle was taken in for service (invoice attached) and "calibrated". Within 10 miles of getting back on the highway, warnings (but no braking) triggered again. (photo attached of one of the warnings). The vehicle is currently back at dealer service.

• 02/20/2024· POWER TRAIN,VEHICLE SPEED CONTROL

  While driving in the highway I took my foot off the accelerator and despite one pedal driving being on the car did not brake. I then tapped the brake. When I then pushed the accelerator to keep up with traffic, nothing happened. I checked the screen for warning lights. The car had none. The accelerator pedal was non responsive causing a huge safety issue for me and others on the road as the car was now just cruising as I was approaching a hill..I had to turn on my hazards and get over into the shoulder of the highway along the bridge at night. I stopped the car. There were still no warning lights on. I turned the car off and back on and the problem was no longer present.

• 02/13/2026· POWER TRAIN,ELECTRICAL SYSTEM

  A failure of the ICCU resulted in a maximum speed of about 25 mph and eventually a total loss of power.

• 02/07/2025· ELECTRICAL SYSTEM

  Shortly after the ICCU recall was repaired I received numerous electrical system warnings on my Hyundai Ioniq 6 (2023, SE model). The dealership identified the problem to be the Battery Management System needed a complete replacement would you take 1-2 weeks. When you factor in three different ICCU service appointments (two SW updates and full replacement) the BMS issue was the fourth electrical / battery issue in the 16 months I've owned the vehicle. Purchased Sept 20, 2023 and have 40k miles.

• 02/05/2026· ELECTRICAL SYSTEM

  January 28, 2026 The vehicle has stopped in the middle Of the street with sign «loss of power, check your battery» or something like that and after few attempts to turn it off and on it went to Accessory mode. After 15-20 minutes it completely died. So unsafe with kids in the car during extreme cold temperatures. Free Hyundai road assistance- quoted me 3 hours or so, i had to pay for towing elsewhere. No doubts its iccu, since tow truck driver attempted to jump start and from dead it went to accessory mode and died again almost instantly. I read on the Facebook about iccu problem of Hyundai, if this is engineering defect it should be remedied.

• 01/30/2025· UNKNOWN OR OTHER

  The ioniq 6 horn is a two (2) tone horn. First, one (1) of the tones went out (lower tone). Now, the horn completely doesn't work. Reading online, this is a common issue with the 2023 & 2024 ioniq 6. This is the same horn (car is the same platform) as the ioniq 5, and lots of forums online also have people posting about their horns going out and not working at all.

• 01/28/2026· UNKNOWN OR OTHER

  Horn fuse has blown 4 times in 5000 miles leaving the vehicle unsafe to operate. Problem is reproduced and confirmed. First started in November 2025 and 4th fuse was placed January 2026.

• 01/23/2026· ELECTRICAL SYSTEM

  Iccu 12 v battery failed

• 01/23/2026· POWER TRAIN,ELECTRICAL SYSTEM

  ICCU failure, vehicle disabled while driving leaving me stranded.