2022 KIA EV6 transmission problems

POWER TRAIN

On [XXX] while traveling to NJ, the vehicle displayed "check electrical system" and would not accept a charge. With only 40 miles of range remaining, I drove the vehicle to Jack Daniels KIA. It is STILL at the dealership, and neither the dealer nor KIA Corp has provided a date that the car will be repaired. The dealer told me that it is covered under the 100kmi powertrain warranty, but that KIA corp must direct how and what to fix. They continue to supposedly try different things to fix the car, but either are not applying resources or are ignorant in how to fix the vehicle. KIA will also not compensate me $1308.99 to cover my current losses (car note, uber to get home when it died, and fuel costs) to date. The car has been out of my possession now for 44 consecutive days straight without any end in sight, compensation, or expected repair date. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11739629 — an unverified report by a vehicle owner.

POWER TRAIN

Vehicle would not start/drive. Vehicle was parked in garage at time of failure. Kia dealership said the ICCU needed to be replaced along with the 12V battery. Prior to the failure, audio was not working in the car for several weeks. Kia stated that was due to the ICCU issues and that the 12V was most likely also failing due to the ICCU. ICCU was covered by KIA, but owner of the vehicle had to pay for the replacement of the 12V battery. Vehicle was inspected by manufacturer at the local Kia dealership.

NHTSA complaint #11737371 — an unverified report by a vehicle owner.

POWER TRAIN

This make/model has a known ICCU issue. Ours went out just after warranty expired and the cost is $4,000. The EU and some Asian countries have extended the warranty of this fault due to how prevalent it is.

NHTSA complaint #11730936 — an unverified report by a vehicle owner.

POWER TRAIN

I was unable to charge this electric vehicle which I normally do almost once or twice a week using my home level 2 charger. It also did not speak the message that "your vehicle is being charged" which it normally does when I charge the vehicle. I tried multiple times. Then I got into the vehicle and saw that it was giving me the following error messages (pics included below) upon trying to start it. 1. "Check Electric Vehicle System" 2. "Battery Discharge Warning - Please use the vehicle after starting the vehicle". However the vehicle would not start and then it went went totally dead. Kia was kind enough to tow it under warranty to Century Kia in Tampa, FL as well as now they are trying to identify the issue. Kia was also kind enough to provide me a rental via Century Kia which I appreciate.

NHTSA complaint #11723023 — an unverified report by a vehicle owner.

POWER TRAIN

The iccu failed on this car rendering the whole vehicle useless. This part is currently a recall and I was using a new ICCU with the software update per their recall solution. My second ICCU failed at approximately 40k miles.

NHTSA complaint #11723084 — an unverified report by a vehicle owner.

POWER TRAIN

While driving the vehicle a short distance, I heard a loud pop from the back seat. The car immediately warned of an electrical system failure. The issue and symptoms are consistent with ICCU module failures, reported across the kia/hyundai egmp platform. My safety was put risk, because I was stopped in heavy traffic when this happened and could have been stranded far from home with no ability to drive the vehicle more than a couple of miles at most. The warnings started immediately after the pop I heard.

NHTSA complaint #11721998 — an unverified report by a vehicle owner.

POWER TRAIN

ICCU unit lost power and the car was unable to drive. Luckily I was parked when it happened but if I had been driving it would have been very dangerous. The part was replaced under warranty but they said it could happen again which really scares me.

NHTSA complaint #11721403 — an unverified report by a vehicle owner.

POWER TRAIN

The ICCU system in my 2022 Kia EV6 failed for the SECOND time on the highway. The car threw an error telling me to "Check the electrical system" and "Pull over safely immediately" or something similar. Had I not made it to the shoulder, I would have been completely stranded in the middle of the highway, creating an incredibly dangerous situation. This is the second time this has happened with my EV6 in less than 50,000 miles on this car. I had to call a tow truck. I confirmed with the Kia dealership the ICCU system had randomly failed and was required to be replaced *AGAIN*. My wife was in the car with me and was freaked out. She doesn't feel safe in it because there's no rhyme or reason to when it happens. KIA says it is a known issue, and confirmed it was the second time this has happened to my car. No symptoms prior to it happening. We were just driving and then suddenly the car lost power and the warning displayed on the dash.

NHTSA complaint #11719771 — an unverified report by a vehicle owner.

POWER TRAIN

Incident occured october 17, 2024. Was driving approximately 30mph on a local road when lights flashed to "check electric vehicle system". Was speed restricted to 25mph (on 45mph road) and was able to make it back home approximately 1 mile away. Car completely shut down in my street prior to making it to my driveway. It needed to be towed to the nearest dealership. No lights in dash working and flickering. Prior to this failure over the preceding several months there were errors where I would plug the car into Level 2 charging at home (9.6kWh) and the car would stop charging with a hot charging port approximately every 1 hour. I would unplug and replug in again. Charging would work. Level 3 was working just fine without problem. After going to the dealership it was deemed that the ICCU component needed to be replaced. After replacing car worked well and no charging issues occured.

NHTSA complaint #11718873 — an unverified report by a vehicle owner.

POWER TRAIN

I completed recall in March of 2025 for the ICCU, it failed driving down a busy road in January 2026. Kia did complete the repairs, but only warranties for 12k miles. It seems from forums I am in that this is a common problem. It also caused me to be without transportation for several weeks

NHTSA complaint #11717383 — an unverified report by a vehicle owner.

POWER TRAIN

Car lost all power and came to a stop while backing out of a driveway on a residential street. It would not respond to any attempts to start it. None of assessories worked. It had to be towed to the dealership. The dealer said the 12v battery was at fault and had to be ordered from Kia. I was told the ICCU unit had failed and drained the 12v battery. It waited for the part from Kia. Then the ICCU needed to be replaced. This was in 2024. The part was not examined. There were no warning signs or symptoms. Had I been in highway traffic my life would have been in danger

NHTSA complaint #11716087 — an unverified report by a vehicle owner.

POWER TRAIN

This electric vehicle failed to charge at level 2 charger at home. It charged at level 3 fast chargers however it registered a full charge at 125 miles and the level of charge in % and miles remaining fluctuated with sudden shifts. There were no warning lights or other signs of problems. I took it to the dealership who wanted me to keep driving and wait a week for an appointment. I knew that this could indicate an ICCU failure for the second time and insisted. Also asked that charging port and 12v be tested It was the second ICCU failure which can lead to a dead stop without warning in traffic. This is the second failure in this car.

NHTSA complaint #11716092 — an unverified report by a vehicle owner.

POWER TRAIN

The ICCU failed and left me stranded in single digit temperatures.

NHTSA complaint #11716318 — an unverified report by a vehicle owner.

POWER TRAIN

Vehicle failed to start (no power). Charged the 12v battery via wall charger and was able to start vehicle but was faced with numerous warnings, including low power mode, electrical errors and other warnings. Car towed to dealership and was found to have a failed ICCU.

NHTSA complaint #11714034 — an unverified report by a vehicle owner.

POWER TRAIN

ICCU failed preventing the vehicle from being charged and killing the 12v battery.

NHTSA complaint #11712222 — an unverified report by a vehicle owner.

POWER TRAIN

The ICCU failed after having the safety recall done on it. The car went into warning mode and I luckily had just enough time to pull it into a parking lot to get towed. another few minutes I would have been stuck on a road with no where to pull off. The dealer did replace the ICCU and said that they were familiar with the part blowing randomly on people and that Kia is aware but not making good fixes by putting in the same defective replacement units

NHTSA complaint #11710834 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11710674 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11710263 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11709411 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11706867 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11706602 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11706619 — an unverified report by a vehicle owner.

POWER TRAIN

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.

NHTSA complaint #11703291 — an unverified report by a vehicle owner.

POWER TRAIN

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 NHTSA review of this electrical/MCU malfunction as a safety-related defect.

NHTSA complaint #11700251 — an unverified report by a vehicle owner.

POWER TRAIN

Car stopped functioning while driving, stopped completely in the middle of the road, a warning "Check electric vehicle system" showed up on screen.

NHTSA complaint #11673560 — an unverified report by a vehicle owner.

POWER TRAIN

ICCU FAILED. Warning that I needed to stop driving the car This happened while driving on an interstate highway. Car would move at 25mph max.

NHTSA complaint #11662596 — an unverified report by a vehicle owner.

POWER TRAIN

While driving a warning about battery and electrical sysytem failure. Vehicle would not drive more thsn 10mph. I was able to limp home about 1 mile away where the car died. Could not restart with a jumper battery.

NHTSA complaint #11657856 — an unverified report by a vehicle owner.

POWER TRAIN

ICCU failure, no time line for replacement Car at dealer for over a month

NHTSA complaint #11652450 — an unverified report by a vehicle owner.

POWER TRAIN

The ICCU failed causing the vehicle to shut down in the middle of the road with no warning at all. Shutting down in the middle of the road with no warning is a major safety issue. Kia is aware of this fault with the EV6 and all other EGMP platform vehicles, and has made no effort to fix the issue. They just replace the faulty ICCU with another faulty ICCU and hope it doesn't fail before the warranty runs out. They are putting lives at risk, and all EGMP vehicles are unfit for purpose. Kia has the vehicle, has confirmed they will "repair" it under warranty. There is no timeframe for the "repair" and the repair doesn't fix the issue, it just puts the vehicle back on the road in the same unsafe condition in which it is likely to shut down in the middle of the road again.

NHTSA complaint #11651778 — an unverified report by a vehicle owner.

POWER TRAIN

I was leaving a parking space when I heard a pop in the right rear of the vehicle. I merged in to traffic and drove stop and go for about three blocks when a warnning message appeared on the dash saying that there was an electrical issue. I've been following this issue on various model specific forums so I was sure what had happened and knew that I had to get off the road quickly. I was able to find an open parking lot and immediately called for KIA roadside assistance. By the time the tow truck arrived all electrical systems were dead. It was towed to the dealer and the next day I was informed that diagnostics determined that the vehicle had a failed ICCU (Integrated Charge Control Unit). This vehicle has had the recalls that addressed this issue with software updates.

NHTSA complaint #11646948 — an unverified report by a vehicle owner.