2023 KIA EV6 Recalls, Complaints & Safety

I was driving 40mph and received a yellow error message along the lines of "electrical system issue, please check" and my speed was limited to 25mph. After trying to get the car to a safe location (as I was on a narrow two-lane road), the error changed to a blinking red error and my speed was further limited to 12mph. I was unable to get the car one mile to the dealer for service, so I stopped the car in a parking lot and had it towed to the dealer. The dealer diagnosed the problem and replaced the ICCU (2nd time on this car) and the 12 volt battery.

My (EV6) failed to charge on both Level 1 and Level 2 charging. A “Check Electrical Vehicle System” message appeared on my dashboard. I took my vehicle to my nearest dealership, where the technician confirmed a faulty ICCU. Fortunately, my vehicle was drivable, and this failure occurred at home rather than on the highway, which could have been a significantly more serious issue. A part has been ordered, and the vehicle has been in the shop going on two weeks.

ICCU failure

ICCU Failure. It's been replaced by Kia under warranty. Initially Level 2 charging failed multiple times. Luckily mine didn't die on the road, but it very well could've like others reported.

In November 2025, after charging car overnight, backed out of driveway and began to drive. Within 100 feet, received red error message and tone: “Stop vehicle and check power supply”. Stopped the vehicle and got it towed to Kia dealer, who confirmed that the ICCU had failed, despite the car having received the software patch purporting to fix the problem. The ICCU was replaced under warranty within a week. We were fortunate that this occured very close to home, without safety consequences. Ten minutes later, the car would have been travelling at 65 on a highway with no shoulder for long stretches, which would have been very dangerous. This was a certified preowned EV6 with less than 9000 miles on it. The 12 volt battery was brand new, having been replaced 3 months earlier with an AGM battery as a possible preventative measure for this issue.

ICCU failed. Towed to dealer and awaiting a replacement.

The ICCU fuse blew. As I was driving, the car began to lose power. Fortunately I was able to pull into a parking lot before I lost all power. It's the same issue as the recall SC327Y1 from NHTSA, which occurred although the software update had already been performed previously. The dealer is replacing the ICCU and ICCU fuse under SC327Y1 after inspecting it. I did receive a warning as I was driving that the car was low on power.

ICCU failed (first of two incidents).

ICCU failure and IVCU fuse failure

The ICCU failed. The vehicle suddenly stopped on the road, would not go into any gear and could not be moved whatsoever, was stuck on the side of the road in a dangerous position. Called roadside assistance, after a few hours the vehicle was towed to the nearest dealership. After a week the vehicle had the ICCU replaced under warranty.

The component that is seeming to fail in most KIA EV6's is the ICCU assembly. This is the component that failed in my KIA EV6 GT. Part# 364-1XFA0AQQK Also the ICCU Fuse, Part#375F2-GI040QQK FUSE-HIGH VOLTAGE. My safety and everyone around me was put at risk when the vehicle loss power due to this ICCU failure. As I entered the highway the vehicle starts loosing power. The vehicle gradually lost power more and more over time. I was able to make it to an exit driving at approximately 20-30 mph, and was able to drive it back to my house where it was then towed to a dealership. The problem has been confirmed by the dealer. I have the invoice to prove the repair of the ICCU. Yes there were warning messages on the screen when the ICCU failed. First, there was an audible "POP" which was the fuse blowing first. Once the fuse blows, it slowly kills the 12v battery and the car then looses power and you're no longer able to drive the vehicle. At that point, the ICCU is blown. The error message showing on the screen was: "CHECK ELECTRIC VEHICLE SYSTEM". Then the display starts blinking red and displays "STOP VEHICLE AND CHECK POWER SUPPLY". I have all the screenshots of the error messages the vehicle displays. The text message that is attached to this complaint is the service tech informing me that the 12v battery that they charged me $366.66 for, DID NOT FIX THE ISSUE. Yet they still charged me for the battery. This dealerships service department had my car from January 21, 2026 to March 4, 2026. A total of 42 days. At the time of the text message, it had already been past one month. I would like to be reimbursed for this cost.

On April 24, 2025, I plugged my Kia EV6 into my 48-amp hardwired ChargePoint HomeFlex at 7:26 PM. Around 10:30 PM I heard a noise outside but did not investigate. At 12:25 AM I noticed I had not received a “charging complete” notification. The Kia Connect app showed the vehicle at 74% and no longer charging. The ChargePoint app was unresponsive.\n\nThe next morning I found the charger’s 60-amp breaker had tripped. After resetting the breaker and rebooting the charger, the EV6 would not start charging and displayed no “Charging started” or “Charging unsuccessful” message.\n\nI then attempted to charge using a portable Tesla Level 1 charger on a 120V GFCI outlet. The EV6 briefly announced “Charging started,” but the dash showed no charging data. The outlet’s GFCI breaker tripped. After resetting, the breaker immediately tripped again when reconnecting the vehicle.\n\nI attempted to drive to a nearby DC fast charger. Upon shifting into drive, the vehicle displayed “Check electric vehicle system” and entered power-limited mode (would not exceed 20 MPH). I returned home. While backing into my driveway, the vehicle triggered a red alert with “Stop vehicle and check power supply.”\n\nThe vehicle was towed to a Kia dealership. They diagnosed a failed ICCU (Integrated Charging Control Unit) and high-voltage fuse. The ICCU recall issue is known for this model. Repairs took over two weeks due to parts delays. The ICCU and high-voltage fuse were replaced.\n\nThe ICCU failure also damaged my home ChargePoint charger, which required replacement under warranty

Dash board showed limited power couldnt accelerate above 10-12 mph pulled into residental area dash then showed warning sign 12v battery then car died in middle of street. Could not put car in neutral called dealership said car cannot be put in neutral without special tools. I had taken it in for recall in 2023 or 2024 cant remember. Luckily i was not on highway as i could not even turn on hazard lights and car shut off abruptly.

1st instance: Battery Coolant errors that occurred on and off. 2nd instance: The ICCU unit failed and car was not able to charge via level 2 and only fast charge. Car was still operable. Dealer replaced ICCU 3rd instance: The ICCU failed and car was rendered inoperable. Dealer Replaced ICCU. We are now on our third ICCU since we purchased the car in 11/26/2022. This would be considered a lemon law

While charging my vehicle at a level 2 charging station, my vehicle ceased charging. I received no other warnings or symptoms prior to my vehicle ceasing to charge. Upon being alerted by the Kia Access app that the charging stopped, I went to check my vehicle and none of my doors would unlock in response to the buttons on my keys. I had to manually unlock my driver side door in order to enter my vehicle. I attempted to start my vehicle and unplug/re-plug in the charger, but my vehicle would not start or charge. Using a portable jump starter, I was able to jump start my vehicle and begin charging again. However, after approximately 5 minutes of charging, my vehicle stopped charging and once again would not start. At that point, I called for my vehicle to be towed to a Kia Service Center. The Kia Service Center was able to reproduce the problem of my vehicle not starting or charging and informed me that there was an internal short circuit caused by a bad Integrated Charging Control Unit (ICCU). The bad ICCU shorted my ICCU fuse, resulting in the draining of my 12-volt battery. The ICCU and fuse were replaced at no cost to me. Although my vehicle is available for inspection upon request, the parts that malfunctioned have been replaced with new, functioning parts. My safety or the safety of others were not at risk in this situation, but I was fortunate that my 12-volt battery died while parked and charging, not while I was driving, which could have caused an accident.

While the vehicle was on the charger, the ICCU failed which then caused then fried my JuiceBox EV40 charger and flipped the dedicated circuit breaker. The car has since been repaired. I am concerned that this is a dangerous failure. If it happened on the road it potentially left me without propulsion. I'm also concerned that but for the circuit breaker functioning as designed it could have caused an electrical fire. My understanding is that this has been an ongoing problem with Kia and Hyundai EVs. I do not believe that Kia/Hyundai are taking responsibility for fixing the problem that have not plagued other manufacturers.

On April 24, 2025, I plugged my Kia EV6 into my 48-amp hardwired ChargePoint HomeFlex at 7:26 PM. Around 10:30 PM I heard a noise outside but did not investigate. At 12:25 AM I noticed I had not received a “charging complete” notification. The Kia Connect app showed the vehicle at 74% and no longer charging. The ChargePoint app was unresponsive. The next morning I found the charger’s 60-amp breaker had tripped. After resetting the breaker and rebooting the charger, the EV6 would not start charging and displayed no “Charging started” or “Charging unsuccessful” message. I then attempted to charge using a portable Tesla Level 1 charger on a 120V GFCI outlet. The EV6 briefly announced “Charging started,” but the dash showed no charging data. The outlet’s GFCI breaker tripped. After resetting, the breaker immediately tripped again when reconnecting the vehicle. I attempted to drive to a nearby DC fast charger. Upon shifting into drive, the vehicle displayed “Check electric vehicle system” and entered power-limited mode (would not exceed 20 MPH). I returned home. While backing into my driveway, the vehicle triggered a red alert with “Stop vehicle and check power supply.” The vehicle was towed to a Kia dealership. They diagnosed a failed ICCU (Integrated Charging Control Unit) and high-voltage fuse. The ICCU recall issue is known for this model. Repairs took over two weeks due to parts delays. The ICCU and high-voltage fuse were replaced. The ICCU failure also damaged my home ChargePoint charger, which required replacement under warranty.

While driving the car we heard a loud pop in the cabin. That was followed by electrical warning lights on the dash. WE were only about a mile from home and did make it back safely at greatly reduced speed. The ICCU was confirmed to have failed by the dealership. The part was replaced. If we had been traveling on the highway it might have been difficult to find a safe place to exit the roadway.

On April 24, 2025, I plugged my Kia EV6 into my 48-amp hardwired ChargePoint HomeFlex at 7:26 PM. Around 10:30 PM I heard a noise outside but did not investigate. At 12:25 AM I noticed I had not received a “charging complete” notification. The Kia Connect app showed the vehicle at 74% and no longer charging. The ChargePoint app was unresponsive. The next morning I found the charger’s 60-amp breaker had tripped. After resetting the breaker and rebooting the charger, the EV6 would not start charging and displayed no “Charging started” or “Charging unsuccessful” message. I then attempted to charge using a portable Tesla Level 1 charger on a 120V GFCI outlet. The EV6 briefly announced “Charging started,” but the dash showed no charging data. The outlet’s GFCI breaker tripped. After resetting, the breaker immediately tripped again when reconnecting the vehicle. I attempted to drive to a nearby DC fast charger. Upon shifting into drive, the vehicle displayed “Check electric vehicle system” and entered power-limited mode (would not exceed 20 MPH). I returned home. While backing into my driveway, the vehicle triggered a red alert with “Stop vehicle and check power supply.” The vehicle was towed to a Kia dealership. They diagnosed a failed ICCU (Integrated Charging Control Unit) and high-voltage fuse. The ICCU recall issue is known for this model. Repairs took over two weeks due to parts delays. The ICCU and high-voltage fuse were replaced. The ICCU failure also damaged my home ChargePoint charger, which required replacement under warranty.

Pulling out of garage, car warned of limited speed and then within about 30 seconds completely shut down-- could not move, operate locks, etc. Car could not be started again and had to be towed away. 12v battery had been drained down to 4v due to failure of ICCU unit. Dealership replaced entire ICCU unit and fuse.

The ICCU went out on the vehicle.

ICCU failure

While driving in the evening with an estimated 180 miles range remaining a "pop" noise was heard. About a minute later a vague warning message the car had not displayed before appeared. We tried to make it home but concerning (and still vague) messages kept appearing quite rapidly. The car slowed down and came to a halt and died in an intersection. This all happened within five minutes of hearing the "pop" noise. Once the vehicle died the head and taillights went off and the car would not allow the emergency flasher lights to be turned on. It would not allow it to be put into neutral to allow it to be moved out of the intersection. It also would not allow any of its doors to be locked (manually or otherwise) except for the driver's door until the vehicle was repaired one week later. We found out following that the 12 volt battery had not charged due to a DC/DC converter input voltage sensor fault related to ICCU failure. The popping noise had been a fuse. As the applicable ICCU parts were replaced by the dealership I doubt they will be available for inspection. The safety of my family was put at risk by: - the car's warnings not clearly explaining what the issue was. - the car not giving clear indication of how quickly it would die. - the car dying in a busy intersection. - the car being unable to be shifted to neutral. - the car's warning flashers not being operational when it died in the middle of the intersection at night. - us being left without warmth in outside temperatures around 6 degrees Fahrenheit. The ICCU problem was confirmed by the dealership we purchased the vehicle from. The vehicle was only inspected by the dealership acting on behalf of Kia.

With no warning except a pop, the vehicle iccu will fail and leave you stranded, very dangerous if you are driving on the parkway

ICCU blew along with the fuse

The ICCU has failed twice in my EV6. It is a fairly common issue for this vehicle. I had the ICCU replaced after the first failure, but it has failed again. There was no indication something was wrong with the car until I heard a pop and then the dash indicated "Check Electrical System"

Heating system fails to generate sufficient heat to defrost windshield or prevent ice buildup in the winter, also impacts the temperature of the cabin. No error codes are generated but it appears the PTC heater is not functioning as expected.

10:00 am January 28th AFTER A DRIVE OF APPROXIMATELY 20 MILES TO THE GROCERY STORE, we parked the 2023 Kia EV6 Wind,in the parking area, then entered the store to shop. On returning, we placed the groceries in the trunk and proceeded to leave for home. The push button "START" provoked a notice on the dash that the 12 volt battery was "LOW". The drive circuits would not enable. Prior to going in the store the dash information reported the main battery was at 62%, all else is normal. We are now stuck 20 miles from home. We called KIA roadside assistance, via a cell phone. The Kia site told us it did not recognize the VIN number we had entered three separate times.. It would not proceed down the logic tree for us to be assisted by their service. We called :AAA"they sent a service truck with a jumper battery which allow us to get a small charge on the 12 volt system, enough to get us home. Immediately upon arriving I opened the hood, retrieved my "Fluke DVM" to measure battery voltage. 6.2 volts was the reading. The 12 volt battery was not charged by the voltage regulation system in our car. Fortunately, we were dressed well, being the temperature outdoors was 14*F at the time and we had access to the grocery store for safety. Yet still a major inconvenience due to breakdown. Later, I disconnected the negative battery terminal, then connected the 12 volt AGM battery charger I have purchased for home use. The battery was charged to full overnight to 13.2 volts. I removed the charger cables, then left the battery set for 12 hours disconnected from the vehicle. The voltage dropped to 12.6 volts dc, indicating a healthy battery. This morning January 29th, I called the Kia dealership to explain our problem, the scheduler has acknowledged a possible bad charge control unit, but told me if it was not a control unit problem, I would pay a fee of $135 dollars for the troubleshooting, even though the vehicle has approximately 33,000 miles. Schedule Feb 4th

While changing lanes on a freeway, the car passed through a narrow strip of slush from recent snowfall. The car immediately disabled the motors, preventing acceleration and regenerative braking for nearly 50 seconds. There were no warning lights, sounds, or messages displayed on the car's gauge cluster display, either for the initial loss of propulsion or for the restoration of propulsion. This caused a loss of traction when the car eventually passed through a patch of packed snow and ice.

Crash

While driving my Kia EV6 in the middle of a snowstorm, the vehicle experienced a sudden and severe power failure. I heard a loud popping sound from the rear of the cabin, after which the vehicle immediately entered reduced-power (limp) mode. Within approximately one minute, the vehicle shut down entirely and lost all propulsion and mobility. I was able to move the vehicle to a safe location only because I was not in traffic or on the highway at the time of the failure. Had this occurred at highway speeds or in active traffic, it would likely have resulted in a dangerous situation with a high risk of collision, especially given the severe winter weather, low visibility, and slippery road conditions. The vehicle has approximately 21,000 miles. This is the second failure of the Integrated Charging Control Unit (ICCU) in this vehicle. The vehicle was inspected by an authorized Kia dealer, who has officially diagnosed the failure as a failed ICCU and associated fuse. There were no warning lights or messages prior to the failure. The first indication of a problem was the popping sound, immediately followed by limp mode and then a complete shutdown without further warning. The vehicle is available for inspection upon request. The repeat nature of this failure, lack of advance warning, and sudden loss of propulsion represent a serious safety defect.

ICCU failure. Was confirmed by shop car was towed to over phone. But no mention of it on invoice as of yet. I was at traffic light when I heard a pop and when I tried to go, got the warning message to pullover and the turtle icon. I made it to a towable spot. Super fortunate all in all. Can’t imagine if on highway in weather. No hints of failure before. Car was recently purchased month prior. I took it in for recall within first week, was told all good, software was updated. I kept between 20%-80% at all times, charged lvl2 at work daily and lvl1 at home sometimes. Had cheap voltage meter in car and was reading fine. Hope to get my car back soon.

It seems as if the ICCU on my car failed. It will not charge and went into limp mode in order for me to drive it home a few blocks.

A small amount of snow / ice is sufficient to prevent the windshield wipers from returning all the way to the original starting position low on the windshield. For some reason this prevents them from functioning entirely - they just get stuck in a loop trying to go all the way down. I am able to lift them up manually but they won't do so under wiper motor power / while driving. I have a video that clearly shows the failure mechanics that this system won't allow me to upload.

The vehicle ICCU failed on 18 January 2026. It previously had the ICCU inspected and updated as part of #24V-867. Warnings on screen told me to stop driving and pull over. Had vehicle towed to Dealer where they confirmed ICCU failure and initially were going to charge nearly $4000 to repair. KIA Customer care spoke to dealership and ICCU repair is now being covered. It seems apparent that the earlier fix did not resolve the issue, and raises concerns over whether KIA truly understands the underlying cause. Will the replacement fail after 30k miles? Will I be stranded?

Vehicle was normal and during the drive a warning light for "Check Electric Vehicle System" was shown, then a second warning light "Stop Vehicle and Check Power Supply" was shown, within 2 minutes the vehicle went into "turtle" or reduced speed mode and then finally the vehicle shut down completely. I was on city streets at the time and was able to park safely, but if this had happened on and interstate highway it would have been dangerous. This is a known issue with this vehicle as it ended up being an ICCU Assembly failure. There is also a safety recall for this, but Kia is not replacing the part and just doing a software update that is not fixing the root cause of the problem.

While driving at normal speed, my Kia EV6 experienced a sudden and complete failure of the ICCU system with zero warning. The vehicle instantly lost all propulsion power and all 12V electrical power, rendering the car uncontrollable and unsafe. I was unable to accelerate, unable to place the vehicle in gear, and unable to activate hazard lights. This occurred despite the vehicle being at approximately 99% battery charge. This failure created an immediate and severe safety hazard, as the vehicle effectively became a dead object in traffic without warning to surrounding drivers. There was no prior alert, no dashboard warning, and no indication of impending failure. This defect is well-documented and pervasive across the Hyundai–Kia–Genesis E-GMP electric vehicle platform and has persisted despite multiple recalls spanning several model years. Kia has acknowledged the issue through recalls but does not have a reliable or permanent fix. Even newer model year vehicles that are claimed to address the issue have experienced the same failure. If this defect occurred in an internal combustion engine vehicle — for example, a random, complete engine shutdown or fuel system failure while driving — it is highly unlikely that regulators would permit the issue to persist across multiple model years without resolution. The fact that this is occurring in an electric vehicle should not lower the safety standard. A sudden total loss of propulsion and electrical power is equally dangerous regardless of drivetrain. Critically, there is no assurance that this failure will not recur, even after replacement of the ICCU or related components. Owners are effectively being returned vehicles that can lose all power again at any time, without warning. It is deeply concerning that this issue remains unresolved after multiple recalls and multiple model years. Continued operation of these vehicles without a verified, permanent fix places the public at ongoing risk.