2024 Kia EV6 Electrical Problems

Car was totally dead even with a 68% charge. AAA came out to jump start. The next day while driving on the highway the car started to lose power. A red warning to check the electrical system came on along with "turtle mode". I was able to pull over off the highway, grateful the two small children were not with me. Car was towed to dealer who kept it for the three days. Only after repeated calling could I reach someone who said they couldn't reproduce the problem. I'm afraid to drive the car at this point as I feel it's just unsafe to do so. This seems to be an ongoing issue that Kia can't seem to fix.

NHTSA ID

11751635

Incident

Jul 16, 2026

We purchased a certified pre-owned 2024 Kia EV6 GT on 6/5/2026. On 6/6/2026 while driving on city streets, the display screen suddenly displayed a large and flashing red warning message "Stop vehicle and check power supply" in addition to the battery symbol. We took the vehicle to the dealership and they diagnosed that the ICCU had failed and needed to be replaced.

NHTSA ID

11749585

Incident

Jun 6, 2026

Component: ELECTRICAL SYSTEM:12V/LOW VOLTAGE BATTERY, PROPULSION system:Integrated Charging Control Unit (ICCU) Description: This vehicle previously had the mandated safety recall software update (Campaign SC327) applied by an authorized Kia dealership in December 2024 to protect the Integrated Charging Control Unit (ICCU). The corporate recall remedy failed. In January 2026, the vehicle suffered a sudden, catastrophic loss of motive power while driving on a public roadway due to a total ICCU failure, which created an immediate hazard for myself and my young child who was inside the vehicle. When the primary ICCU component failed, it starved the low-voltage system, causing severe deep-discharge damage to the 12V battery. Following the warranty repair of the ICCU in February 2026, the vehicle was returned to me. However, Kia's official corporate diagnostic and repair procedures for this defect are fundamentally flawed and incomplete; they do not mandate a comprehensive load-test or automatic replacement of the 12V battery following an ICCU collapse. Because of this failure in the official repair procedures, the vehicle was returned to service with a critically compromised low-voltage system. This directly resulted in recurring battery warning messages over the subsequent months, culminating on May 29, 2026, in a secondary, total 12V battery failure that completely bricked the vehicle. The failure of the manufacturer's official safety recall remedy and the subsequent inadequacy of their post-failure service protocol left this vehicle in a chronically un-roadworthy and unsafe condition.

NHTSA ID

11741641

Incident

May 29, 2026

Does not ac charge and no codes present

NHTSA ID

11736865

Incident

May 7, 2026

I had an ICCU failure on 4/12/26. I was fortunate enough to be close to home, so I was able to get back home before the vehicle dropped into reduced power mode. As has been reported many other places, I heard a loud pop and moments later a number or warning messages came up on the display. It was towed to the dealer the following day and has been confirmed to be an ICCU failure.

NHTSA ID

11735651

Incident

Apr 12, 2026

2024 Kia EV6 leased January 2025. Vehicle is subject to NHTSA Recall 24V-867 / Kia campaign SC327 for the Integrated Charging Control Unit (ICCU). The recall remedy was performed at an authorized Kia dealer in July 2025 (software / operational logic update). The defect was not cured. Three months after the recall remedy was performed, the vehicle suffered complete loss of electrical power and would not move. It was towed to the Kia dealer. The dealer's own diagnostic recorded code P1A9096 — the exact diagnostic code Kia's recall instructs technicians to check for — and replaced the ICCU and high-voltage fuse. This is the recall-defined failure occurring AFTER the recall remedy was applied. Approximately three months later, the vehicle again suffered total loss of power and would not start in cold weather. It was towed in. The dealer replaced only the 12-volt battery and did not address the ICCU, despite the documented prior ICCU failure on this VIN. The 12V battery failure is a known downstream symptom of ICCU failure on this platform. Approximately one month after that, the vehicle returned for charging system failure ("vehicle charges briefly then stops") and a "check electrical/hybrid system" warning that appeared while driving. Diagnosed as charging port failure. Vehicle was out of service approximately 27 consecutive days. Total cumulative days out of service across four visits: approximately 35-40. Two safety-related stranding incidents resulted from these failures. Both occurred in winter conditions in Pennsylvania. In the first, the driver was stranded in a parking lot at night during a snowstorm in sub-zero conditions; three tow trucks were dispatched before a flatbed could recover the vehicle because the EV could not be towed conventionally with no power. In the second, the vehicle died in a school parking lot during a snowstorm; the first dispatched tow truck could not recover an EV with no power, and the driver had to walk multiple miles home in freezing

NHTSA ID

11734168

Incident

Oct 27, 2025

The vehicle’s ICCU unit stopped working out of the blue. This happened on a busy intersection and the car came to a sudden and violent halt. Luckily we were not involved in an accident. It’s a very well known issue with these vehicles and it’s really criminal that Kia has done nothing to fix it. They just change the ICCU unit and then it happens again.

NHTSA ID

11732893

Incident

Jan 13, 2026

Went to charge my vehicle in my garage on 4/15/26. When it was fully charged, I reached to disconnect the charger from the vehicle and the connector was hot to the touch; the charging hub on the vehicle was also hot, the charger had a slight plastic burning smell. I immediately tried to contact the company and learned that they had unbeknownst to me, ceased conducting operations in the US. So I ordered a new charger. I also tried it again on 4/17/26; and the heat was higher faster than it was on 4/15/26; so I hav disconnected the device and installed a new one. The electrician noted that the breaker was damaged and had to be replaced. I also recall, that a few months after the initial install of the charger, there was an incident where my wife saw sparks in the garage from the breaker and we heard a large pop; and then the charger went out. The company sent us a new one then that worked fine for a few years.

NHTSA ID

11732119

Incident

Apr 15, 2026

Issue was diagnosed as ICCU failure.

NHTSA ID

11731325

Incident

Apr 3, 2026

Known ICCU issue by manufacturer. While driving get alert on screen the check electrical system. Had to pull over and call tow truck for safety reasons. Charging system is not working properly and 12v battery can die at anytime.

NHTSA ID

11729356

Incident

Mar 19, 2026

I had just finished charging the vehicle overnight on a Level 2 charger at a family members home. After leaving the driveway and driving a few hundred feet, an error message showed on the vehicle screen saying "Check Electric Vehicle" system, and then later a second message that said to stop the vehicle. I immediately turned the car around parked it in the driveway again and called roadside assistance to have it towed to the Kia service center. The Kia service center confirmed that it was an ICCU (integrated charging control unit) failure, which they replaced 4-5 days later after ordering the part. These error messages were the first and only indicator of the problem, there were no smaller issues leading up to the issue. Because the failure happened within a block of a family member's home, I was able to get to safety. But it could have been a completely different situation had the failure occurred even a few minutes later when I was on the freeway.

NHTSA ID

11728963

Incident

Mar 27, 2026

After starting the car, a message displayed on dashboard "Check Electrical System." I tried driving the car out of the garage and then a message displayed to the effect of "Stop the car and check battery." I called the dealer and they said to have the car towed to them. After having the car towed to the dealer, they ended up replacing the Integrated Charging Control System (ICCU) and fuse. The danger is that the failure of this ICCU part could cause immediate loss of power when driving. Luckily, that didn't happen to me since I was only creeping slowly out of my garage.

NHTSA ID

11725422

Incident

Feb 6, 2026

Was trying to drive EV. As soon as I pulled out of driveway it gave me a warning sign; to check electrical system/stop vehicle and check power supply. I couldn't drive car anywhere, had to get it towed to dealership. When tow truck arrived we couldn't turn car on, it had no power. Mind you, I had full charge on EV.

NHTSA ID

11725103

Incident

Mar 14, 2026

* Per paperwork from the car dealer, the ICCU failed along with a 3way valve assembly and a fuse blew. * While driving, the car went into a limp mode greatly limiting its maximum speed. * I was afraid to continue driving it and had the car towed to the KIA dealership. * It took exactly a month for it to be repaired. * The dealership kept the failed parts. * No warning lamps until the failure occurred. * When the failure happened a warning message stated "Check electric vehicle system!" and a battery symbol turned red. *Since it was taking what seemed like a long time for repair, I contacted Kia-Customer-Care and they assigned case number 25902713.

NHTSA ID

11724808

Incident

Feb 16, 2026

I had just left my house and pulled onto a 5 lane road when the ICCU died. The car lost power while underway. This posed great danger as the vehicle became unable to safely navigate traffic and pull off to safety. Kia is well aware of this hardware problem, tried to fix it with software updates, and deflates the affected number of vehicles. To make matters worse, they tried to deny this was a recall because they claimed the recall was fixed via the software update. This affects every single Kia Hyundai and Genesis EV.

NHTSA ID

11724429

Incident

Jan 10, 2026

The ICCU on the car failed and blew a fuse. KIA had to replace ICCU and fuse under warranty

NHTSA ID

11724234

Incident

Feb 20, 2026

The car on 3/5 blanked out on all screens. shut car off and then came back on, no warnings came up. The car on 3/7 came up with “Check Electric Vehicle System” reverted to page 1-46 of Manual and advised do not drive, tow to nearest dealership. We drove car 4 miles home and the car had next to no acceleration, extremely dangerous and people nearing to back end us. To try and charge vehicle response is "unsuccessful"

NHTSA ID

11722927

Incident

Mar 7, 2025

I purchased this vehicle just over a year ago as a CPO model with only 8,000 miles on it. It now has just over 23,000 miles. In this short time of ownership, it has been back to the dealership 3 separate times for serious EV system issues. The first visit involved a software update intended to correct a 12-volt charging issue that could prevent the vehicle from charging and potentially cause ICCU failure. Shortly after that update, the 12-volt battery failed, despite being <18 months into service, completely bricking the vehicle and leaving me stranded waiting for a tow. The battery was replaced under warranty. Less than 2 months later, while >30 miles from home, the vehicle displayed a “Check Electrical System Failure” warning. I was able to limp-mode the car back to the dealership. I am now being told that the main EV battery has failed and must be replaced, possibly also the ICCU. The dealership cannot provide a firm timeline for repairs; parts availability could mean anywhere from 2 weeks to 4 months without the vehicle. This pattern of failures raises serious concerns about the reliability and safety of the EV6. Repeated electrical system issues create a very real risk of being stranded unexpectedly, potentially in unsafe situations such as on the side of a highway. To date, I have already lost four days of use due to service repairs, and I now face being without the vehicle for an extended and uncertain period. While a loaner vehicle is being provided, I will incur fuel expenses at a time of rising gas prices, undermining the financial rationale for purchasing an EV. Meanwhile, I continue making payments on a vehicle I cannot use, which is depreciating in value. I understand that new technology carries some risk. However, despite prior updates and even a model refresh, the ICCU issue appears unresolved, and Kia does not seem to have a clear root cause identified. For a vehicle marketed on innovation and dependability, this experience has indicated otherwise.

NHTSA ID

11721903

Incident

Mar 2, 2026

The Integrated Charging Control Unit (ICCU) of my KIA EV6 failed. When putting the car into reverse to leave my workplace, I heard a fuse pop and a notification appeared on dashboard screen saying "Check electric vehicle system". This is a known recall issue that I was aware could happen, and in which case the car will soon become completely inoperable, so I didn't risking driving further. I had it towed to the nearest KIA dealership, where they confirmed the ICCU had failed and replaced it at no charge under the warranty coverage. There were no warnings or symptoms prior to the failure. I was fortunate that it did not fail while I was driving.

NHTSA ID

11721899

Incident

Feb 23, 2026

The driver (my wife) was operating the Kia EV6 (with approximately 10,000 miles) when the vehicle suddenly experienced a severe loss of motive power. While driving, a warning message appeared on the dashboard indicating an issue with the power supply. Immediately after, the vehicle forced itself into "turtle mode," severely restricting the maximum speed to 20 mph and refusing to accelerate further. This sudden, unexpected deceleration on an active roadway put the driver at a significant risk of a rear-end collision. The driver managed to slowly navigate the vehicle back to our residence at a maximum speed of 20 mph, which was extremely hazardous. Shortly after safely parking at the residence, the vehicle experienced a complete electrical failure. It would no longer start, could not be shifted into neutral, and ultimately had to be dragged onto a flatbed tow truck by roadside assistance because the wheels were locked. The vehicle was towed to an authorized Kia dealership, where it is currently undergoing diagnosis and inspection for what is heavily suspected to be a total failure of the Integrated Charging Control Unit (ICCU) and 12-volt battery system. The vehicle and the failed components are currently at the dealership and are available for inspection upon request. Note: This catastrophic power loss occurred just weeks after the vehicle was in the shop for nearly a month to have its entire high-voltage battery pack replaced due to severe range degradation, marking the second major electrical system failure on this vehicle.

NHTSA ID

11721858

Incident

Feb 26, 2026

The vehicle had an electric supply failure, suggesting a failed ICCU. This left me stranded and requiring a tow. The issue is not uncommon in this vehicle but there is no recall. Kia and Hyundai need to get this right rather than keep repairing these when they adhoc fail.

NHTSA ID

11719652

Incident

Feb 20, 2026

Vehicle Information: 2024 Kia EV6 (VIN: [XXX] ) Mileage at time of failure: 14,005 Complaint Description: My 2024 Kia EV6 experienced a complete failure of the 12-volt battery system despite the high-voltage traction battery showing approximately 80% state of charge. The vehicle became completely inoperable without warning. The 12-volt battery was fully discharged and the vehicle would not enter READY mode. The vehicle required a jump start to become operational. After being jump started, the 12-volt system did not appear to charge properly, suggesting a failure of the Integrated Charging Control Unit (ICCU), which is responsible for converting high-voltage battery power to maintain the 12-volt battery. This failure created a significant safety concern because: The vehicle became completely disabled without warning. This failure occurred while driving in heavy traffic, it created a hazardous situation. The vehicle’s electrical systems, including safety systems, depend on the 12-volt battery. There are known reports of ICCU failures in Kia and Hyundai electric vehicles that result in identical symptoms (sudden 12-volt battery discharge despite adequate traction battery charge). This suggests a potential systemic defect rather than normal battery wear. I am filing this complaint due to concern that this issue represents a broader safety defect affecting multiple vehicles and may require investigation or expanded recall action. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11719101

Incident

Feb 19, 2026

The ICCU failed while I was driving my car on a 50 mph road. Check electrical system warning lights appeared. Maximum speed was reduced to 19mph and my car became a road hazard for other cars on the road. I managed to pull off the road once I found a safe spot. After visiting the Kia dealership, the problem was confirmed as a failed ICCU (Integrated Charging and Control Unit) and replaced under warranty. No problems appeared prior to the failure. Vehicle was required to be towed to the repair facility.

NHTSA ID

11718697

Incident

Feb 8, 2026

The Integrated Charging Control Unit (ICCU) and High Voltage Fuse failed twice within 100 miles, causing a total loss of motive power while driving. The first failure occurred on Jan 24, 2026 (13,954 miles), and the second on Feb 2, 2026 (approx. 14,000 miles), immediately after the first repair attempt. In both instances, the 12V charging system failed, severing connection to the high-voltage battery and forcing the vehicle into a "limp mode" with reduced speed and steering loss in active traffic, creating a severe collision risk. ​The first authorized manufacturer technician stated that the issue was with the 12v battery and not the ICCU, however the second dealership confirmed that the issue was the ICCU all along, resulting in 17 days out of service. Symptoms included a loud "pop" followed by "Check Electric Vehicle System," "Stop Vehicle and Check Power Supply," and 12V battery warnings. Despite Recall SC327/SC302 procedures, the safety defect persists.

NHTSA ID

11717707

Incident

Jan 24, 2026

ICCU FAILURE. COMMON ISSUE REPORTED WITH EV6s 2022-2025.

NHTSA ID

11717457

Incident

Feb 8, 2026