Hyundai Ioniq 6 Complaints

131 consumer complaints on file.

#11687232September 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687111September 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685340September 5, 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11684995September 4, 2025
VEHICLE SPEED CONTROL, ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
As I was driving home from work, a loud POP went off under my car, and sirens began to go off. I was given a critical error, and told to immediately contact a dealership. My car began to slow, and would only go 25 mph. Luckily for me I was within a few miles of a dealership, but if I wasn't so fortunate this would have been a much larger issue. The ICCU has failed, despite already getting Hyundai's recall for this issue performed. I am now without my car for an unknown quantity of time.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11678124August 3, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11675247July 22, 2025
ELECTRICAL SYSTEM
I own a 2024 Hyundai Ioniq 6 that experienced a complete 12V battery failure at under 500 miles of use, despite showing normal voltage levels (12.5V off, 13.25V while attempting a jump). The vehicle was undrivable and could not start, even though the main battery (MV) was at 70% charge. There were no prior warning lamps or messages before the failure. The vehicle had to be towed and left inoperable for nearly 30 days. According to the servicing Hyundai dealership, the root cause was determined to be a failure caused by Hyundai’s own connected app, Bluelink — which the dealer explicitly said is the root cause for my batteries failure. Hyundai Motor America, however, has refused to acknowledge this diagnosis, and despite repeated inquiries over a 60-day period, has not provided any explanation or confirmation of the cause. They continue to point back to the dealer while providing no warranty-related answers, no documentation of testing done, and no safety assurance that the failure won’t recur. The issue puts safety at risk, as the 12V battery’s failure renders the entire EV completely disabled — without warning. This creates potential for owners to be stranded, especially if the issue occurs in unsafe or remote locations. In my case, roadside assistance failed to be able to pick up the vehicle twice, resulting in a 12-hour ordeal. Hyundai has made no effort to formally investigate the potential connection to Bluelink and appears to be suppressing acknowledgment of the defect trying to offer me a one month payment instead of acknowledging or confirming this is a possible issue that can happen again in the future contingent on me saying my concerns are resolved; they're not. The resolution involved a tech having to use a third party tech line & no data within the invoice. I believe this is a broader safety issue affecting other Hyundai EVs using the Bluelink system and that NHTSA should investigate whether this poses systemic risk across affected vehicles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672992July 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11668137June 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664667June 3, 2025
FUEL/PROPULSION SYSTEM, ELECTRICAL 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662901May 24, 2025
POWER TRAIN, ELECTRICAL SYSTEM
ICCU failure DTC P1A9096 12 volt battery depleted charge and would not charge off of traction battery shutting down all systems. Vehicle stopped on the middle of highway creating a safety issue. Vehicle was in previously and had all recalls performed related this possible issue. Vehicle has been at dealers without a resolution for weeks.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657368April 28, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS, UNKNOWN OR OTHER
INCIDENT ONE: On 3/20/25 about 5 minutes after starting Climate Control on my Ioniq 6, I cleaned snow off the car and started it. As I started backing out, there was a loud warning sound and red indicators around the aerial image of the car on the dashboard. I double checked my surroundings and found no obstructions, so I continued to back out. As I began to turn the car into the direction I needed to head down the street, the car abruptly stopped. I had to put the car back into Drive and pulled forward. I checked again for snow on the bumpers and found none, so I backed out again, this time successfully. When I reached the intersection and tried to turn, the car again abruptly stopped and automatically sounded the horn. The car stopped in the lane of oncoming traffic, but there were no cars approaching. Again I had to put the car back into Drive. I pulled over and took a cloth and glass cleaner to wipe down the cameras. After doing this, I was able to continue on my commute without seeing red lines around the image of the car and without being abruptly stopped when turning. The dealer was unable to reproduce the problem, which they attempted to do under different weather conditions from those on the morning of March 20th. INCIDENT TWO: On 4/7/25, driving on a four-lane highway, a car pulled in front of me without signaling. I tried to alert them to my presence by sounding the horn. The space in the center of the steering wheel (with the horn icon on it) produced no sound when pressed. This was alarming. Fortunately I was able to slow down, and I was not hit by a car from behind. Later. I tried the horn again several times with no sound produced. The dealer repaired the horns.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656770April 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11649911March 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11648278March 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647298March 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647183March 8, 2025
ELECTRICAL SYSTEM
Since implementation of the recall (software update on ICCU) in January, the 12v battery has gone dead 3 times (every ~3 weeks) while the vehicle was parked overnight. It hadn't had this problem in the 6 months prior to the software update, and the dealer shop is unable to diagnose a problem. They say they are unable to reverse the software "fix" which seems to have caused the problem, and refuse to replace the ICCU.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646609March 5, 2025
WHEELS
My car was parked and I noticed that there was a bump in the sidewall of my vehicles driver front tire. This is the 2nd time this has happened in a month with factory installed tires that came with the vehicle when purchased brand new. I have had my 2025 Hyundai Ioniq 6 SEL since 12/13/2024. I already submitted an NHSTA safety ticket on 2/3/2025 due to my driver rear tire exploding while driving. Ticket # 11640496. This is extremely dangerous and can kill myself or someone else on the road, especially on highways. There is a defect in these tires that Hyundai had partnered with Pirelli to install on brand new Ioniq 6 SEL vehicles. I am lucky I caught the bump on the side of the tire before it exploded while driving. I have attached the pictures of the tire from this 2nd incident.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646034March 3, 2025
SEAT BELTS
The contact owns a 2024 Hyundai Ioniq 6. The contact stated that upon attempting to install a child safety seat, the rear driver's and passenger's side seat belt tongues failed to fit into the buckle, preventing the seat belt from fastening securely, and compromising the safety restraint system. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown. The VIN was not available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643192February 17, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL
Today, I had a scary situation on my 2024 Hyundai Ioniq 6 limited. While backing out of a parking space, I put my foot on the brake to place the car in drive and the car kept rolling back no matter what I did and almost crash into the car park across. I was able to finally stop the car by placing it into park repeatedly. I was inches from striking the car across when it finally came to a stop. I then attempted to place it in drive again and no dice. I had to turn the car off and back on to get it to respond and place it back to drive. Anyone else experience this helpless feeling? Quite scary. This vehicle has had the various ICCU updates performed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641396February 7, 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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