5XYC34JA4SG0104512025 KIA EV6Light, Light Long Range, Wind

As of Oct2026 2nd occurrence of need by Dealer Service Dept. to replace ICCU in 2025 EV6 Wind; Car delivered new in July 2025 with current mileage of 13,614

The contact owns a 2025 KIA EV6. The contact stated that while entering the parked vehicle, he observed that the front driver-side wheel well melted from the inside out. Two dealers were notified of the failure in person. The manufacturer was notified of the failure by phone. The failure mileage was approximately 6,000.

I own a 2025 Kia EV6 Wind RWD. At approximately 14,655 miles, the vehicle experienced a confirmed Integrated Charging Control Unit (ICCU) failure that resulted in loss of 12-volt charging and reduced motive power. On August 1, 2026, while reversing the vehicle, I heard a loud pop from underneath the rear seating area. Immediately afterward, the red 12-volt battery warning light illuminated and the vehicle displayed a “Check Electrical Vehicle System” message. Because I was concerned that the vehicle was no longer charging the 12-volt battery, I externally charged the 12-volt battery with a smart charger and then measured the battery voltage with a multimeter. With the vehicle off, the battery measured 12.99 volts. After starting the vehicle and confirming it was in READY mode, the voltage measured only 12.35 volts, indicating that the vehicle was not maintaining the 12-volt electrical system. When I drove the vehicle to Hilltop Kia on August 3, 2026, the vehicle had substantially reduced propulsion and would not exceed approximately 45 mph. The dealer diagnosed the vehicle and documented DTC P1A961C, “LDC Internal Power Supply,” and DTC P1A9096, “LDC Input Voltage Sensor.” The dealer’s Kia diagnostic system showed LDC input voltage of only 1.7 volts, compared with a stated typical value of approximately 565.5 volts. The dealer replaced the Integrated Charging Control Unit (ICCU), part number 36400-1XF06, and the high-voltage ICCU fuse, part number 375F2-GI040, under warranty. The cooling system was bled, diagnostic trouble codes were cleared, and the vehicle was road tested and returned to me on August 6, 2026. I purchased the vehicle new on November 28, 2025. My vehicle is a 2025 model year EV6 and is outside the earlier 2022-2024 EV6 ICCU recall population. I am filing this complaint because the ICCU failure caused the vehicle to stop charging the 12-volt electrical system and resulted in significantly reduced motive power. The symptoms and dealer-confirmed

The door closed sensor fails intermittently. This causes the car to sound an alarm while driving, prevents locking of the doors, and results in automated sudden braking at low speeds, such as in heavy stop & go traffic, causing a significant crash hazard. When it engages in the emergency braking routine, it shifts out of gear, so you can’t prevent a rear collision by simply accelerating, you must rapidly shift the car into gear, first.

Hi, I had to transport a few lumber pieces that did not fit into the trunk of my Kia EV6, so I had to leave the hatch open (I pulled it down as far as possible and secured it via a rope against the latch). When I started driving the car started beeping frantically, but allowed me to drive. When I crossed an intersection traffic came to a temporary halt, and when I came to a stop my Kia all of a sudden shut off and would not allow me to put it back into gear again. When traffic around me continued I was unable to move and presented a security hazard with cars coming from behind almost running into me because they expected me to move, which I couldn't. I inquired about this at my dealership this morning and was told that there is no way to override the car's behavior and that this behavior was a "safety feature" to ensure the car wouldn't be driven with the hatch open. Now I'm asking since when is it a safety issue to knowingly drive with the hatch open to transport an oversize item - shouldn't that decision be left to the operator of the vehicle? In my opinion it's a much bigger safety issue to all of a sudden disable the entire powertrain of the vehicle when coming to a brief stop. What if the brief stop would have happened on a highway or freeway? Regards, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Driving on three lane highway at 60 mph the car abruptly lost power. Was able to get off the highway. Called Kia roadside assistance. Tow truck picked up car and delivered it to Kia dealership. Service dept diagnosed and is replacing the ICCU.

While charging at a L3 station, charging was interrupted with a pop (which turned out to be ablown fuse). Two warning lights appeared on the dashboard (battery and vehicle with exclamation points) as well as message to "Check electrical vehicle system". Kia Connect told me to exit the vehicle and that it would need to be towed to the dealer. Dealer Service Office confirmed it was not safe to be in the vehicle nor to drive it. Car had only 2311 miles at the time! From the dealer invoice the KDS was inoperative at the time. Fault codes: P1A961C LDS Internal Power Supply out of Range and P1A9096 LDC Input Voltage Sensor Component Internal Failure Confirmed 12V battery no charging in ready on. Live data does not match given good values. LDC input voltage ~2V, LDC Output voltage 11.4C Dealer replaced ICCU and ICCU HV Fuse. Filled and bled cooling system. Verified vehicle charges on L2 charger. (Note I had been charging on an L3; this has not been verified.) I was told the ICCU ASSY had a new part number and was coming from a different factory. This part had a cost of nearly $5000 but was covered under warranty. HV fuse also replaced under warranty.

While driving car began to decelerate and the dash lit up with a number of ABS/Brake system failure symbols. I was on the highway traveling at abt 70 mph when the issue happened. Got car to coast off hwy onto an upward sloping exit. Stopped at a light. Turned off and back on and was able to gain minor speed got approx three blocks to a gas station. Pulled off and tried restarts. The screen stated there was an update pending, but it could not complete it because the Electronic Brake System failed. I tried triggering a brake reset but it didn’t work. Car was towed back to Dealership. Two days later the Dealership mechanic confirmed the issue was a failed Electronic Brake which must be replaced. Car has now been with Dealer for 10 days. Dealer stated the EBS was on back order and they do not have a timeline for the parts to come in. They’ve provided me a rental from their fleet which they are covering in full. Hoping this is resolved soon.

While maneuvering my Kia EV6 into my garage, the vehicle accelerated unexpectedly and struck the garage wall. I believe the acceleration may have been unintentional or due to a malfunction. I request review of any vehicle event data

2025 KIA EV6 ICCU (part#36401 1XFD5) failed at 2,658 miles. Failure occurred when power was applied after reversing out of a parking space, switching to drive and applying power. No safety issues as vehicle remained controllable. Vehicle went into "limp" mode. Build date of vehicle is 6/20/2025. KIA Dealer has replaced failed ICCU with updated unit (part#36400 1XFD6). No indication of failure occured prior to the failure (an audible "POP" heard from the rear cabin when the unit failed).

As I was driving, there was a loud pop that came from the rear of the car. The vehicle immediately flashed a warning to “check electrical systems”. I pulled over as quickly as possible but was faced with reduced acceleration. I ended up stuck in a parking lot awaiting a tow truck for over an hour with my dog and my wife in the car headed to a surgery appointment. The dealership has not confirmed anything but from research it seems to be a known issue that Kia has not addressed.

ICCU failure at 900 miles

Loud pop and Check Electrical System Message - limited ability to drive due to ICCU no longer charging 12V battery. Car no longer able to drive.

While driving Friday 4/17/26, I heard a pop and the car displayed a message to "Check electric vehicle system." The car seemed to still drive so I drive it home. That evening the car would not charge. I called Jim Shorkey Kia on 4/18/26, where I bought the car, to schedule the car to be looked at. They told me to bring it in on Monday and they will try to squeeze me in so they can diagnose the issue. Later that morning, I took that car out and made it about a block away before the car displayed a new message to "Stop vehicle and check power supply." At this point, the car went into a limp mode, barely moving. I was able to turn around and drive it home. Had I been on the highway, I might have been put in a dangerous situation. Now that the car has been diagnosed, the service department called and told me that the failed component was the ICCU. From what I've read, Kia claims that 1% of cars suffer from this issue. However, this percentage seems unlikely due to the number of online complaints. I wanted my experience to be an official documented case of this since I've heard that Kia has issued limited recalls in other countries and on older model Kia EV6's in the US.

KIA has created a safety hazard by removing the ability for the driver to select LIGHT or DARK mode for the two 7" data and infotainment screens in their 2025 and forward EV6 electric cars. Like many, I have to drive in very fast busy commuter traffic on highway I-66. (exaserbated by driving into the sun in the AM) The DARK mode screens have insufficient contrast even with the screen lighting turned all the way up. It takes the drivers eyes away from the road longer than is safe, particularly in high speed freeway commuter traffic. This is seriously exacerbated if the driver uses sunglasses because of the sun. This is obviously not an issue confined to highway I-66, or me.

Steering rack need to replace after drive almost 1900 miles. It has knocking nosie when turn the wheel, the car had been in the shop for three weeks.

I START VEHICLE AND TRY TO PUT TRANSMISSION TO DRIVE ITS NOT WORKING AFTER I TRY TO PUT VEHICLE TO REVERSE TRANSMISSION ITS NOT WORKING

ICCU and fuse failure when it was being moved out from the garage. Got a “Check electrical system” notification when I turned it on following a level 2 charge the night before. It was with the dealer for exactly one month before I was able to pick it back up.

While driving on a sunny day on a 35mph road, my dashboard reported “Check Electrical Vehicle System”. A red battery symbol appeared and my cruise control disengaged with a message “requirements not met”. When I got home I read my 12 volt battery monitor that reported the battery was 11.99v and only had a 60% state of charge. Just prior to this short drive from home, my battery was 12.77v and had a 100% state of charge. I put in my ODB reader and it provided two error codes: P1A9096 and P1A961C. The first error code is the result of an ICCU failure in its DC to DC circuit (the one that charges the 12V battery from traction battery). Using a battery charger, I was able to fully recharge the 12volt battery. My monitor says that it’s healthy with 100% state of charge. Turning the car back on resulted in a rapid drain of the battery from 100% to 93% in just five minutes while parked. The electrical system failure warning lights are still lit. I’m having my car towed for repair. If this failure had occurred more than 10 minutes from my home, I would’ve been stranded.

ICCU replaced after 5 months of purchasing new and less that 7,000 miles.

ICCU failure.

ICCU failure. Car lost power while driving. I heard a "pop" sound and then the car displayed a warning light moments before losing power. Car was towed to the dealership where they diagnosed and replaced the ICCU and a fuse. This is a known problem since the 2022 model year and seems to be a very common failure that the manufacturer is unable definitively repair. Thankfully I was on a local street and not on a highspeed highway when this occurred.

The ICCU unit failed and the car first slowed and then stopped. I was able to pull off the road at an intersection. A tow truck had to jump charge the battery to allow the car to be shifted into neutral in order to pull it onto the tow truck.

The battery had an electrical system failure warning after 5900 miles and has been in the shop for over a month.

Windshield cracking on new Kia EV6 with only 2700 miles. Was 53 degrees outside so no defroster excuse. Seems to be a stress crack and looking online in KIA EV6 Forums, I've noticed it is not a one-off problem as many owners have had to deal with this.

I was driving my car and the stop immediately and check battery sign came on. I had to have my car towed to the dealership. I read that the ev6 have ICCU problems and commonly need to be replaced. The car lost all acceleration and power and eventually stopped moving all together.

Car has an NACS charger port, and is advertised by KIA as compatible with Tesla Superchargers and home chargers. The car will not charge at a supercharger nor at home using a Tesla charge cord that works with a Tesla Model 3.

ICCU failure within three (3) days of buying vehicle. Only 300 miles on it. Failed to charge with known working Level 1 charger on day 1, successfully charged with Level 3 charger on day 2, and then failed to charge at same Level 3 charger on day 3. Simply connecting the Level 3 charger on day 3 had the car emitting "charger errors", and then followed that up with an "On board charger" fault. Vehicle no longer charges. Returned to dealer for repair.

When shifting from reverse to drive there was a loud pop towards the back up the car. A check electrical system warning popped up, and then eventually a Check Power Supply stop now warning came up. The vehicle would not go above 26MPH and had to be stopped in a parking lot to be towed to the dealership. The ICCU went out and needed to be replaced, was at the dealership for 2 weeks for replacement.

ICCU failure. Pulled out of driveway, heard a pop, received warning to pull over and check vehicle power. Car had to be towed to dealership but they are experiencing so many of these failures that they are extremely backed up on even being able to check out the car.

The ICCU unit failed. Limited speed and no charging capabilities. The Dealer has been informed and an appointment has been made 3 weeks out as they are too busy. The ICCU has not been inspected yet. No warning lamps or messages appeared before the problem started. After a loud POP or bang in the rear of the car 1 warning light appeared and 1 message. (See Attached) POP happened at 16:15 hrs on the attached graph.

ICCU failure

initially filed XXX (1/2/2026) 2nd (additional info) filed XXX (2/10/2026 3rd (3 page service report) XXX (2/11/2026) Vehicle is registered to Christopher Rojik, however it is my car that I drive, etc. today I am filing this for you folks that since I filed the complaint with Kia Corp. and sent them the service report, etc. Today, 2/19/2026 I received a formal Settlement Agreement and General Release to sign and accept. I am not signing it, as well as it fully releases Kia from any future issues, etc. outside of the warranty and whatever other details it claims. This will or should be the last for me to file. I had no idea they send me this kind of offer. As it is listed specifically as a "GOODWILL GESTURE" and they are not accepting fault or something like that. I attached inidividual pages, hopefully I can upload them as pdfs, we will see. If not I'll take quick pics and attach. thanks INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was reversing my car in the parking lot and I heard a pop. Immediately I had a check electrical system warning. Preceding this the car was doing things which may have implied issues with the 12 V battery. Occasionally walking up to the car would not automatically open the car. Or other times, touching the driver handle did not unlock the car. The car is now at the dealership. They have confirmed failure of the HV fuse, ICCU failure, which also blew the 12 v battery. They have ordered the parts but it is currently on back order. The car could drive but after looking up this issue if the 12 v battery had drained it would have been inoperable.

Started my car while I was out and heard a pop sound. Warning message appeared saying "check electrical vehicle system". I was able to drive but when getting onto the freeway, I started to lose acceleration and go into limp mode. I pulled over on the freeway and had to get car towed to dealership. Dealership service center confirmed that my ICCU part failed. The vehicle to my knowledge hasn't been viewed by anyone other than the dealership.

I charged overnight at work. When leaving I heard a loud pop and the check EV system light came one. The vehicle would no longer drive over 40mph. I made it a mile and it dropped to 20mph. The dealership has had my car for over a week. From research it seems to be the ICCU as many others have had problems with.

initial filed #11708370 (1/2/2026) 2nd filed #11717025 (2/10/26) Yesterday afternoon (2/10/26), I was told by Jim Shorkey Kia Wexford PA that no error codes are on the EV6, it is ready for pick up. Before I received this call, there was a software update done on the EV6 (see service records) I attached 2 photos of the software update as well. ICCU ASSY was replaced, etc. was told per Shorkey Kia since there are no issues with my EV6, as of Friday when they initially called to say my vehicle was ready for pick up, Kia considers my problem resolved. I know I’ll be paying for the car rental for X number of days, even though the EV6 did not get the software update until this past Tuesday, yesterday 2/10/26, which cleared the 3 codes that were still showing on the Kia app earlier morning yesterday, screenshot of that attached as well. I have my car, no codes visible now.

prior case 11708370 filed 1/2/2026 spoke with [XXX] 1/22/2026. Friday 2/6/2026 Shorkey Kia Wexford calls and tells me my EV6 is fixed I can pick it up. I go into the Kia App and still have the same 3 codes as before; P056216 VCU, C160404 FR_Radar, and C28B186 ADAS_DRV. I tell them later that day when I had time to open the app to make sure the codes were corrected, called them back and said until these codes are cleared, my vehicle is not fixed. Tuesday 2/10/2026 I get a called from same person at Shorkey Kia in Wexford, telling me my vehicle is fixed, I can pick up my vehicle, same person her name is Maggie. I told Maggie to hold while I bring up the Kia app, I still see the same 3 codes: P056216, C160404, C28B186. I told her the codes are still active, and as long as these codes are present, the car isn’t fixed. She wouldn’t tell me what was done to the car, so I don’t know if the ICCU was replaced or not. However from browsing the EV6 Owners USA group, [XXX] had the same issue, and his car was fixed per whatever Kia place that is around him. He still has the P056216 alert and was told it will go away after whatever period of time. This is what the Kia repair place told him. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I have experienced a ICCU failure at 7200 miles on my 2025 EV6 GT Line. This failure is a safety hazard as it will quickly disable the vehicle and strand the occupants wherever they be at the time of failure. (highway, back roads, day or night). There are warning lights when this occurs, but there is a very limited time to get to safety, depending on the state of charge of the onboard 12v battery. This issue has been ongoing since this vehicle came out in 2022. There have been a number of recalls to address the problem, but apparently without success. I see postings all the time with others experiencing this failure. When I inquired about the availability of the replacement ICCU, I was told that the part was on national back order. I was also told there were 147 units in transit, 47 were already spoken for. This seems to indicate that this is a very common issue, affecting many drivers.

11/28/25 on freeway car lost power and would only go 25mph and warning light came on. After short distance full power came back. 12/14/25 earliest appt with dealer and could not find problem. 01/09/26 Lost power and took car to dealer. Dealer said bad battery and they replaced battery. 1/20/25 lost power again and limped to dealer. Dealer found bad ICCU. They are now waiting for new ICCU to replace. When your driving 55 mps on freeway and suddenly drop to 25mph this is dangerous. The apx date required below is when I have taken the car and dealer confirmed ICCU problem not the original problem date of 11/28/25.

ICCU failure at 3889 miles not charging and 12v battery failure

Failure to charge properly on both alternating current and direct current platforms. Trips electrical breakers at residence while charging at home on AC current. The vehicle will only DC fast charge for a few minutes before charge session is prematurely terminated. I have been told by the KIA that it is a failure in the integrated charge control unit (ICCU). They told me there were 47 current problems right now in the state of Tennessee. I have not been issued a recall at this time. The logistics for getting a new ICCU could 2 weeks or greater. This problem could be catastrophic on long road trips.

Was driving around 45mph when I heard a pop noise, like an over pressurized soda bottle popped open. Moments later car abruptly dropped to under 35mph and reported errors and to check battery system. Brought it into dealer and they confirmed my ICCU failed and had to be replaced.

While driving on a busy road at night, my vehicle displayed battery warning lights and went into "limp mode" which slowed me down to 25 mph before stopping completely. I was then stranded until a tow truck could be dispatched. The Kia dealer told me that the issue was an ICCU (integrated charging control unit) which they have to order. I have since learned that this issue is known and is common.

Was driving home lost all power. Caution lights came on. The ICCU, relay switch, 2 fuses. went bad. It took 9 weeks for KIA to fix, no compensation.

Erratic behavior before pulling out of parking lot: STOP vehicle check power, check 12V battery Stop safely engage parking brake. All dash lights started flashing, going black, power couldn’t be maintained, thankfully not on highway yet. Complete car failure, had to have 2025 EV6 jumped 4 times, battery still showed 41% charged, couldn’t keep charge to even get car in neutral for tow or doors locked. After each jump from tow company, power would last for less than 3-5 seconds, then dead, completely dead vehicle nothing worked.

I was driving on the highway when I heard a pop like a loud fuse sound from the back seat area. Suddenly the car dropped 15 mph from 70 mph to 55 mph and the battery and electrical system warning lights came on and the vehicle said check electrical system. I was able to continue with my hazard lights on to exit the highway, at which point the max speed of the vehicle dropped to 45 mph. It would not go faster no matter how hard I pushed the gas pedal. I was able to pull over to a gas station and park in a spot but the vehicle had to be towed. When the tow truck arrived, the vehicle also flashed with the 12V battery low warning. It was diagnosed as a failed ICCU, which rapidly drained the 12V battery. The car is only 4 months old with about 7,300 miles. This is a serious safety concern, especially with the sudden failure and loss of power. I’m lucky I wasn’t hit and that I was able to get off the road before it totally died.

After 2474 miles, the vehicle Integrated Charging Control Unit (ICCU) failed in my 2025 Kia EV6 making the vehicle undrivable so it had to be towed to the Kia dealer. The ICCU was replaced under warranty. The failure of the ICCU in Kia, Hyundai and Genesis electric vehicles is fairly common and they have yet to come up with a permanent solution.

The rear door of my KIA EV6 intermittently fails to open even when the vehicle is unlocked. The issue has been recorded on video and reported to an authorized KIA dealer, but it has not been repaired. A child safety seat is installed in the rear seat, and this defect creates a serious safety risk in an emergency where immediate access to the child is required. The vehicle is unsafe due to this defect.

Driving down local (residential) roads, the ICCU died; towed to dealership 12/3/2025. All 12 volt electrical was inoperable. So no hazard lights, no shift to neutral, no locking the doors. It was towed to the dealer. ICCU is now being ordered. The Master Warning light and 12V battery warning light illuminated. I was fortunate to be able to park in a parking lot just before all electrical died. An Internet search shows that this is a known issue; and, even after the replacement the situation can happen again. Took delivery 6/28/25. So, not even 6 months old.

On 2025-11-12, my car got BMS error P1B9700. On 2025-11-13, I took the car to local Kia dealer. The error is for battery temperature sensor. After 1 week, thst sensor have not been replaced nor any other numerous minor electrical defects were fixed. My car was just parked in dealer lot the whole time. No communication from Kia or dealer how to fix this potentionly dangerous battery problem.

Issue Description: When parking facing downhill, I put the car in reverse but the car rolls forward. Feels like the car is either in drive or neutral. Concern is intermittent, and I confirmed each time it happens, gear selector is in reverse. When trying to re-engage reverse, the display shows "gear already selected." Safety risk: Car almost hit car in front of us while trying to reverse. Car was inspected by dealer service center. Could not duplicate, but found an error code. Dealership found multiple software updates available on the brand new car and installed.

Power completely dropped while driving in traffic. This occurred several times. I could have easily been rear ended. Also, I could have been stuck within an intersection, I could have been broadsided. I see researched this issue and found it was widely written about in KIA EV6 online forums. Kia should have checked for issues before I leased the 2025 EV and informed me before I made a decision to lease vehicle. This occured in first weeks I drove the new car.

I was driving over to walk my friends dog and I was pulling into the overflow parking area and my car just speed up and it would not stop. I went up a curb and I hit a small tree went down another curb crossed the street and then up another curb and the break would not stop the car. I finally just cut the car off

ICCU failure caused loss of power on interstate. I almost got in a wreck because of this. Kia dealer refused to look at my car. Took vehicle to independent repair shop who diagnosed issue.