Unsure exactly why it happened, but I was driving in my parent's neighborhood (25 mph limit), and I heard a pop, and the next thing I saw was an electrical warning message on my dashboard. That's when I realized the issue is with the ICCU.
2022 Kia EV6 electrical complaints
Page 4 of 8: complaints 71 to 100 of 213, newest first, as owners wrote them.
Heard fuse pop in back of car immediately went into turtle mode with red check electrical system warning. Dealer diagnosed as bad ICCU which also drained the 12v battery. This recall should be left open for all these ICCUs keep failing and stranding people.
I was driving to work less than a mile away from my home, when coming up to a red light my car told me to find a safe place to stop. No previously warnings or other symptoms. Car just went from fine to nonfunctional in a matter of seconds. Once stopped, I had no power or any electronics. Not even hazzard lights. I was stuck at the intersection while I awaited a tow truck which had difficulty getting the car on the truck due to the complete electrical failure. Car was towed to a local Kia dealer who inspected it the next day and confirmed the ICCU was at fault. It was replaced in a couple of days and convered under warranty. 12v battery also dead but not covered by the warranty even though the faulty ICCU could have caused it to die early.
Vehicle alerted Electric Vehicle System problem on the dashboard. Dealer determined the ICCU and a fuse needs to be replaced again. Dealer has declined to replace the ICCU under the current recall stating it was already replaced 8 months prior. Vehicle is not usable in current condition due to a faulty ICCU.
After owning this car for about 3 years now I had the ICCU blow out on me at 53k miles right before thanksgiving. This prevented my car from Level 1 / Level 2 charging and would no longer keep the 12v battery charged. this made the car drive at limited speed as the 12v would drain. I had previously taken the car to get the ICCU recall early in the year and obviously that "software fix" did prevent this from happening. How am I supposed to reliably drive this car unless KIA/Hyundai actually redesigns the ICCU? This is something that needs a permanent fix or at the least a lifetime warranty coverage.
Could not charge car. It kept saying Charging Interrupted. The failure was the ICCU
Bought this car in 2022 and had no problems until 1/2/26. Car was charging at home and suddenly stopped. Got a check electrical system warning light. Took it to the dealer to get checked out and the ICCU needs to be replaced. Despite everything online saying that it is covered on the 10 year/100,000 EV warranty, they are denying that it is covered under warranty. They say it is covered by the basic 60,000 mile warranty which I am a whopping 8,000. There has been multiple recalls on the ICCU, all software because Kia can't be bothered fixing their bad designs. Getting rid of this junk car and never buying a Kia again as I will not trust my life and safety with such a horrible company that doesn't care one bit about it's customers.
I bought my Kia ev6 new in October 2022, I have had problems with the charging system. I had the ICCU replaced on 9/12/2024 60,488. I just had to have it towed to the dealership because the same issue came up on 1/2/2026 92,943. It went into check electric system and pull over, then went into limp mode got it pulled over to the side of the road and it died. Dealership has it now and will give updates. I don't charge at DC only charge at home on a level 2 charger.
Heard a loud pop while driving , and then car immediately showed an electrical failure message and went into turtle mode. Diagnosed by dealer as an ICCU issue
Upon connecting a level 2 charger, I heard a loud POP, then the dashboard said charging failed, check Electrical system. From then on, the car would not be able to charge on level 2. The dealership determined that it was an ICCU failure, which is very well documented and experienced by owners in online forums. In my situation, no one was put at risk, however many owners have reported it happening while they were traveling at highway speeds. When this happens at highway speeds, it causes the car to slow down immediately, which is extremely dangerous. The part number of the ICCU is the same as the original, which means it's still the same part that could fail at any time. My car has been updated to the latest recall software to motivate the ICCU failures but it still happened to me. Please put pressure on Hyundai and Kia to fix this issue and recall all ioniq 5s and ev6 models
ICCU fail at 58,000 miles. + the front fuse under the front seat. Rendered the car immobile and drained the 12 volt battery. Dealer replaced the iccu and fuse but refused to replace 12 volt, saying that it is covered up to 36k miles. They said ir can just be recharged. But since there repair took a long time, the battery was sitting fully discharged all this time. After that sitting period it would not charge back. So the fault resulted in a week of covered repairs and an extra 12 volt battery cost on an ev, not covered by the dealer.
While driving, the car all of a sudden lost power - forcing me to pull over. If this were to happen while on the freeway, a crash would have been imminent. This is a known issue with kia/Hyundai EV's where the ICCU fails and causes the vehicle to lose power suddenly.
The ICCU charge control unit for Kia electric vehicles that immediately depletes the 12v battery & significantly reduces motive power forcing you to pull over with no countdown to how long one has in terms of distance or duration. This uncertainty is absolutely unsafe as you cannot know how long it is safe to keep driving before the vehicle ceases to move. This ICCU failure has been affecting several 2022 onwards Kia vehicles & even replacing this component does not guarantee this failure will not recur & needs serious action & accountability to Kia.
The ICCU failed in my car while attempting to charge the vehicle while at home in my garage. This component has a known history of failure while driving and now that it has been replaced with an identical unit, I fear for my safety while driving since I live in a remote area and rely on the car for transportation in sub-freezing temps and winter conditions. While the dealer has replaced the ICCU, there is no acknowledgement from the manufacturer that the failure mode of this component has undergone any redesign or improvement to warrant trust that it will not happen again. It is a ticking bomb.
The electrical system failed (dashboard warning light appeared while in park) and then a pop was heard (fuse bursting). Car could not safely drive. Dealer confirmed ICCU failed once checked at dealer. No prior warnings noticed and no issues charging with approved systems leading up to the failure.
My ICCU failed while I was driving and I lost power while in a light controlled intersection in Chicago. The screen turned off and I could not see my speedometer or any driving information. I luckily was able to roll to the side of the road and park the car. My car could not change gears, doors would not work, trying to jumpstart the 12V did not work.
Started car. Heard a pop in the back seat area and then an error message appeared on the dash.
I had an ICCU failure. There were no warning lights . The dealership initially could not find the problem but when I brought it back again they did confirm the ICCU failed and replaced it. Failure of this causes the car to stop driving and lose power causing you to stop on the road as well as be unable to charge the car.
In November 2024, my 2022 Kia EV6 became suddenly non-drivable due to electrical failure consistent with a repeat ICCU/12-volt system malfunction. The vehicle would not start or maintain normal electrical power and became stuck in accessory mode, creating a loss of propulsion and complete loss of transportation. This vehicle previously experienced an ICCU failure earlier in 2024 that required dealership repair and battery replacement. After that repair, the vehicle again developed electrical failure symptoms, including loss of 12-volt power and inability to operate. Due to the unsafe non-drivable condition, Kia Roadside Assistance directed and arranged a tow to a Kia dealership. Upon arrival at the dealership, new undercarriage and wheel-well damage was documented within approximately 90 minutes of drop-off. This damage was not present prior to towing and is located where tow equipment attaches. The vehicle remains in the possession of the dealership and is available for full inspection. The electrical failure created a safety risk because the vehicle became immobilized without warning and could not be safely operated. There was no advance notice or driver-caused event. The failure resulted in complete loss of vehicle function. The vehicle has been inspected by a Kia dealership, and I have been working through Kia corporate and roadside providers since the incident. The vehicle remains out of service with unresolved electrical issues and unresolved damage resulting from the manufacturer-directed tow.
Not charging on Level 1, Level 2 chargers, only level 3. ICCU problem confirmed by dealer diagnostic even after recall software update was installed.
My driverside front door won't open, when door is unlocked, both outside and inside handle wont't open the door. You have to click on the unlock/lock button 15-20 times to get the door open. All the other 3 doors works fine.
My 2022 Kia EV6 developed a serious electrical/MCU malfunction on 10/19/2025 at approximately 64,300 miles. While driving, the vehicle began to stutter during acceleration, all driver-assistance and safety systems disabled (LKAS, collision avoidance, lane keeping), and the vehicle could not accelerate normally (topping out around ~60 mph when fully pressing the pedal). The Kia Connect app displayed fault codes MCU P0A4100 and LKAS C164286. The malfunction recurred immediately after a dealer visit on 10/20/2025. The vehicle has since been inspected by Huffines Kia in Corinth, Texas, but no confirmed diagnosis has been provided, nor have they notified me of dropping/reconnecting the HV battery. On 11/18/2025, a new fault code appeared: MCU P0C1700. This failure affects the high-voltage electronics/MCU and causes sudden loss of acceleration capability and complete disabling of active safety systems while the vehicle is in motion, placing me and other drivers at risk. The issue is reproducible, continues to occur, and the vehicle remains at the dealership. I am requesting the federal safety agency review of this electrical/MCU malfunction as a safety-related defect.
The ICCU (Integrated Charging Control Unit) failed while the vehicle was charging at my home. It tripped the 60A circuit breaker for my EVSE circuit and now my EVSE is inoperable. The vehicle no longer charges via AC (Level 1 or Level 2) at any charging station. Attempting to charge the vehicle triggers a safety fault error on the EVSE indicating an electrical problem with the vehicle. Additionally, attempting to use the V2L (Vehicle to Load) adapter on the vehicle causes audible arcing sounds from the ICCU accompanied by a "Check Electrical System" message on the vehicle's display. These symptoms indicate a complete failure of the OBC (On-Board Charger) circuit inside of the ICCU. The arcing is most likely coming from a failed MOSFET. The ICCU has been recalled twice in this model, however it is clear that the software update "remedies" are not satisfactory. I had the most recent recall campaign SC327 completed during the month it was released in November 2024, yet it still failed only a year later. Reports of ICCU failures are constantly being posted online from "remedied" Kia EV6 vehicles. Software cannot fix a hardware design fault. The part should be redesigned to correct the cause of the defects and, if Kia doesn't want to replace every ICCU with new hardware, the warranty on the ICCU should be extended to unlimited miles and 15 years.
Software updated for recalls still have ICCU failed. P1A90 [0x1A90] ios_Archive Status: Permanent ---------------------------- P0AA6(00) [0x0AA600] Hybrid battery voltage system - isolation fault Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested ---------------------------- P1A90(96) [0x1A9096] Status: Test failed, Test failed (current drive cycle), Pending, Confirmed, Test failed since last DTC clear, Warning indicator requested
The contact owns a 2022 Kia EV6. The contact stated that the electric vehicle battery failed to charge during level one or level two charging. The vehicle was driven to the local dealer, who diagnosed that the Integrated Charging Control Unit had malfunctioned and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The contact stated that the vehicle was previously serviced under the federal safety agency Campaign Number: 24V867000 (ELECTRICAL SYSTEM). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 81,300.
Prior to midnight on 9/25/2025 I stopped at a Sheetz in Stephen"s City , Va to charge my 2022 Kia EV6. Upon pulling into the charging area I discovered construction fencing around the area with the chargers removed. I then drove to the other side of the store and parked next to the building to take advantage of the lighting as I scanned my phone app for alternative chargers in the area. SUDDENLY, within the blink of an eye, my car lunged forward at MAXIMUM speed. It came to a sudden stop , prior to hitting the glass and brick wall of the building. I was stunned. My first reaction was to try to go into reverse to back away from the building and then I noticed people coming toward me. I rolled the window down and heard them ask if I was ok , if I needed help calling 911, and then they began to insist that I climb down out of the car as they feared it would catch on fire. I did not understand what they meant initially, until I realized I was LOOKING DOWN at them. With assistance, I got out of my car and realized it was impaled upon the metal barrier post located in the middle , front of the parking space. The local sheriff dept responded and after putting me through all the DUI tests/exercises realized that I , indeed , was sober and not responsible for the incident. The deputy called Clem's Garage/Towing who arrived 30-45 min latter with a standard tow truck - I tried to explain that tugging at my car from the rear would not release it from the pole ( the rear of the car pointed toward the pavement while the front pointed toward the sky) and that continuing to tug would only do more damage (I wanted to prevent my car further damage). He eventually called another company who arrived with a large crane-like vehicle that lifted my car off the pole. The top portion of the pole was missing and apparently stuck in my car . My car was then towed to Clem's holding yard.
ICCU failed while charging using Level 2 charger. Dealer still has my vehicle and issue was diagnosed.
Car stopped functioning while driving, stopped completely in the middle of the road, a warning "Check electric vehicle system" showed up on screen.
July 2023: Vehicle brought in for first ICCU recall/ICCU SW Upgrade May 2024: Vehicla brought in for second ICCU recall June 2024: repeated 12 volt battery failure, 12 volt battery replaced, Car was stuck in a parking lot and needed to be jumped. July 2024: ICCU Failure, resulting in ICCU replacement. This took place after 2 recalls. ICCU failure luckily happened in a safe location. December 2024: Receive Recall Notice for a continued ICCU defect February 2025: Vehicle brought in for third ICCU recal - this time after ICCU replacement. The Recall notice described the possibility that the ICCU could fail while driving, even at high speeds. Leaving the vehicle stuck with no power or even hazard lights.
The 12-volt battery has failed twice and was ultimately replaced. Additionally, the ICCU unit was replaced once. The vehicle has now returned to the shop for the same recurring issue, as the 12-volt battery either fails to hold a charge or is not charging properly. Most concerning, the vehicle stalled while in motion, creating a serious safety hazard, as it was not possible to activate the hazard lights, leaving occupants in a potentially dangerous situation.
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