Hyundai Ioniq 6 Complaints

131 consumer complaints on file.

#11717725February 13, 2026
UNKNOWN OR OTHER
I TOOK POSSESSION OF THIS VEHICLE ON SEPT 1, 2025 SINCE DAY 1 THE BLUELINK APP STATES THAT THE CAR NEEDS SERVICE I SPOKE TO HYUANDI CUSTOMER SERVICE & THEIR ONLY RECOMMENDATION IS THAT I GO BACK TO THE DEAL / I SAID TO THEM JUST YESTERDAY (FEB 12, 2026) SO LET ME GET THIS STRAIGHT / AM I SUPPOSED TO GO BACK TO THE DEALERSHIP EVERY DAY I THINK A RECALL IS NEEDED TO SEE WHAT IS GOING ON WITH THESE HYUNDAI CARS MY ORIGINAL CASE # IS XXX
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11717724February 13, 2026
VISIBILITY/WIPER
THIS CAR WAS PREPPED BY COCONUT CREEK HYUNDAI AND I AM BEING TOLD BY YOUR CUSTOMER SERVICE DEPARTNEMTN THAT THERE MIGHT HAVE BEEN SOME DEBRIS ON THE WIPERS THAT CAUSED THE SCRATCHES / HOW IS THAT MY FAULT HYUANDI HAS WALKED AWAY FROM ANY RESPONSIBILITY / IN FACT THEY ASKED ME IF I CHANGED THE WIPER BLADES / I JUST GOT THE CAR 5 MONTHS AGO WORST CUSTOMER SERVICE
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715741February 5, 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11715173February 2, 2026
LANE DEPARTURE: BLIND SPOT DETECTION, FORWARD COLLISION AVOIDANCE: WARNINGS, FUEL/PROPULSION SYSTEM
Battery is not charging to full capacity. The ICCU has been replaced and the battery is still not holding a full charge.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714604January 30, 2026
UNKNOWN OR OTHER
My car horn has ceased to work. I have not taken it in to be fix yet, but feel it is a safety issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714275January 29, 2026
VISIBILITY/WIPER, UNKNOWN OR OTHER
this vehicle was delivered to me on Sept 1, 2025 / i have been back to the dealership a few times regarding the front windshield is totally scratched up this had to happen from the windshield wipers the issue is that when i drive into the sun the glare from all the scratches is annoying the second issue that hyundai cannot fix is that the app on the phone has stated since day 1 that the cars vehicle health needs attention / hyundai corporate response is that I should take it back to the deal EVERY DAY / i have no clue what is wrong with the car and if it is safe to drive hyundai corporate is washing their hands regarding both of these issues / they are doing the same thing now that they did to me in 2018 when they told me that I had to pay them to break a lease on a lemon law claim when they could not fix the 20+ issues that were wrong with my car i have case numbers if you want them
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714059January 28, 2026
ELECTRICAL SYSTEM
I had the ICCU unit recall taken care of on my car. While driving yesterday evening, I had a complete power failure. There were warning lights on the dashboard so I slowed down until it finally totally stopped. The warning lights said check electrical system and a yellow turtle light came on. While waiting for the tow truck all electric stopped including the flashers. It was dark, during rush hour and 10 degrees outside. I was left stranded, blocking traffic and with no heat. People were honking their horns and fighting to get around me. The street became one lane. It was very dangerous for me, I was a sitting duck. It also became dangerous for pedestrians trying to walk while cars squeezed around my car. Again, all of this happened in the dark in 10 degree weather. I waited all day to get a diagnosis from the dealer but they were too busy. I was not given a loaner car and have been stranded at home and lost a day of work. I had to have my car towed home last night and waited for a tow again to take it to the dealership. I may lose another day of work tomorrow.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714010January 28, 2026
ELECTRICAL SYSTEM
The ICCU died and the fuse on my traction battery blew. Both had to be replaced. I realized I had the problem when I started my car and it showed "Check Electric Vehicle System". When I tried driving it, I was limited to speeds below 45MPH, then eventually 25MPH, and eventually it would enter "turtle mode" and I could limp along at a couple MPH. I found the car would no longer charge the 12V accessory battery and it would no longer receive a charge from my home charger.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713969January 28, 2026
POWER TRAIN
When driving recently, the car suddenly began showing a warning message “check electrical system” and would not go beyond 25mph. I was on the way home but still far, and had to turn on my hazard lights to alert other drivers. Eventually the car escalated the warning to “pull the vehicle over” and implied that the main battery was having an issue. I had to have th car towed to a dealer (closest is 10 miles) who eventually diagnosed the issue as a blown ICCU. My understanding is this is a critical component to the charging infrastructure and must be fully operational for the car to safely drive. Hyundai repaired the part and I had the car back in a few days, but I could get no assurances on what happened or whether or not it would occur again. The car has 14,000 Miles in the Washington DC area. It seems incredibly unsafe that this component could blow at any time. I also understand there are many other owners with this exact issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713875January 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713739January 27, 2026
ELECTRICAL SYSTEM
My car is less than a year and a half old with only about 10k miles and last night I had the ICCU failure. I already had the software update to "fix" this safety recall 272 but it obviously didn't work. I am a female with a young daughter who was almost stranded in a bad neighborhood as suddenly my car wouldn't go faster than 15 miles an hour and I looked it up and knew it would just stop suddenly at some point. I only had a quick 1 min warning when I turned on my car that said "Check Electrical Vehicle System" then switched to "Stop vehicle and check power supply". My car is now at the dealership and I was told they have to put the same type of part back in as there are no new versions of it. Which is why others have had this happen multiple times.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713520January 27, 2026
ELECTRICAL SYSTEM
ICCU failure which causes a fuse to pop. Because it is an EV the car cannot be driven
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713425January 26, 2026
ELECTRICAL SYSTEM
ICCU failure. 5 minutes into my drive to work, the car slowed down, dashboard said electric failure and then died. It had to be towed to the dealership where it took a week to get ICCU replaced. Apparently a lot of Ioniq owners are having this problem. No warning signs, the car just dies. Car has 26,000 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713342January 26, 2026
ELECTRICAL SYSTEM
Warning came on the dashboard to check electrical and stop driving which I did and started up the car again and was only able to drive another minute until the entire car lost power while trying to accelerate and I had to have an emergency pull off into a strip mall off of a busy street car was towed although the Hyundai Road assistance did not know that the dealer they towed to was not able to work on electric vehicles, and therefore had to be restored. At this time, I was told it was an ICCU issue. The part was ordered, and I am waiting to hear back from the dealership.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713258January 25, 2026
ELECTRICAL SYSTEM, POWER TRAIN
-ICCU failure, identified by dealer service department as the cause of catastrophic failure. -The car suffered a catastrophic failure on a 2-lane country road in Princeton NJ on [XXX] at approximately [XXX] at night in 20 degree temperatures. Every function except blinkers (temporarily functional) ceased to work. I waited in the car, without heat, for an hour before service arrived. The car could not be moved and was left in the road until 3:00 am, when the towing company I paid towed the car to my driveway a mile from the failure site. -My safety was at severe risk while I waited in the car. -Dealer replaced ICCU assembly with the same part, with the possibility of repeated failure. -Warning messages appeared somewhat over a mile before catastrophic failure. The car slowed to 11 mph. -Hyundai has known of the potential for catastrophic ICCU failure in their electric cars since 2022. I took possession of this 2025 model in March 2025. I was never informed of any recall, although it appears that a recall was issued at the end of 2024. -Hyundai has denied compensation for irresponsibly, with knowledge of the potential failure, subjecting me to a hazardous, life-threatening situation. -Anecdotally, of the 4 Ioniq owners I know, 3 have experienced ICCU failure. 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
#11712994January 23, 2026
FUEL/PROPULSION SYSTEM
While driving "check electrical system" warning appeared and vehicle went to limp mode limited to 20mph while on a 40mph roadway. Drove an additional few miles to try and reach home and vehicles completely died, no power. Towed to dealer. DTC P1A9096 indicates ICCU failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11712984January 23, 2026
ELECTRICAL SYSTEM
Iccu 12 v battery failed
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11712917January 23, 2026
POWER TRAIN, ELECTRICAL SYSTEM
ICCU failure, vehicle disabled while driving leaving me stranded.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11712691January 22, 2026
ELECTRICAL SYSTEM, ENGINE
The vehicle popped up a screen that said check power source. Then within 30 seconds went into limp mode said power was limited and couldn't drive faster the. 25mph in the middle of a highway. By the time I pulled over to the side of the road my car was dead. Ive been trying to get Hyundai and the dealership to dignose the issue. Based on the error codes I was given it appears to be a dead iccu and 12v battery. I am in a ioniq group on Facebook and over the last week of being in it I've counted over 50 dead iccu on this group alone. All in one week.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11712408January 21, 2026
POWER TRAIN, ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
ICCU Failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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