2024 KIA EV6 Electrical System Problems

Car suddenly slowed from 55 mph to 25 mph because of issues with the 12v battery and the ICCU system. The car is only 1 year old. From looking online, this seems to be a fairly common issue/problem. The dealer is working on it now, but it seems likely that this issue will happen again. If it happens on a freeway, certainly a safety concern.

Heard a pop, followed by power failure and warning lights to stop operating the vehicle. The ICCU unit had blown.

Kia has a known ICCU issue with several of their electric vehicles. Mine went out yesterday creating an extremely dangerous situation on the road. After it blew, I lost the ability to accelerate or steer. This was obviously very scary for me and the drivers around me. I feel very lucky to have not been hit by another car. Although Kia is replacing these, this does not guarantee a fix. That is to say, the ICCU has the potential to blow again after replaced because the core issue is not something that Kia group has reengineered. I should not have to fear getting into my vehicle and wonder if it will blow again. I hope the government steps in and conducts an investigation into this. It’s only a matter of time before someone, unfortunately, will lose a life over this.

ICCU failed. Heard a popping sound from rear of passenger compartment, dash errors lit up, car went to limp mode

Multiple times the 12V battery has died without warning. Once in driveway while engine was charged to 93%, once while parked at work parking lot at charging station. Both times the car had to be jumped by AAA and driven to the dealership where it sat for 7 days each time with NO diagnosis, no loaner, no rental, and no transport. Finally after the second time, the dealership replaced the 12V battery but still did not give any diagnosis whether this was the ICCU or not. I have complained to KIA Motor Corporation who have advanced my complaint however they have eventually dismissed my complaint. They cannot answer me whether they believe this car is safe. They cannot stand by the safety of this car. They have not acknowledged that this is a safety problem and that other motorists have had similar battery failures while driving on the highway and in other unsafe areas.

[XXX] about [XXX] our 2024 Kia EV6 WIND RWD AUTO VIN: [XXX] already serviced in both NHTSA Campaign #: 24V867000 and Campaign #: 24V200000 had a sudden loss of drive power and nearly all control while driving in rush hour traffic at 65MPH on [XXX] between Atwater and Livingston. The confirmed failed ICCU component can be inspected at Modesto Ca Kia. The sudden loss of drive power and control in rush hour highway traffic put me and numerus other rush hour highway drivers at catastrophic risk of multiple crashes, this could happen to anyone with the same car and especially concerning because our car had ALREADY been serviced in the 2 previous NHTSA recalls (see above) for the very issue (ICCU) that impacted our car nearly resulting in a catastrophic outcome. The confirmed failed ICCU component has only been inspected, and confirmed failed by the KIA EV certified technician at the Modesto Ca Kia dealership. Since owning the car [XXX] a yellow 12 volt battery lamp indicator, not a warning light, on the front dash would occasionally be lit randomly while driving or parked. Just moments before the sudden loss of power and control numerus warning lights and messages were appearing and the displays were flashing on and off. We had absolutely no: warning lamps, messages, symptoms, nor any other issue whatsoever with our car prior to this sudden failure while driving on the highway. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving and got an error that there was a problem with the electrical system. It then gave me a n error of "Stop vehicle and check power supply". It's an electrical vehicle and I am not able to charge it now.

I see there is a lot of battery issues with KIA EV6 out lately; my car randomly died near my house and nothing was working, doors wouldn't open/close, hazard light wouldn't come on.. had the car towed to the dealership same day. they claim that they fixed my car properly and fixed the recall issue with the battery.. drove the car back home the same night. next morning; car is again dead and nothing is working; I feel very unsafe driving this car and i see online hundreds of kia EV 6 is having same issues. I don't think Kia is properly addressing this issue or the technicians know how to properly fix this.

ICCU and fuse failed while I was driving in the snow. Heard a thunk in the rear and Check electrical system came on screen. I had power to be able to drive the car home a few miles. SC327 recall software fix had been applied already over a month before this, but during that recall I was not advised to replace the ICCU. It failed right after putting the car into Snow mode. Was driving 20mph, auto regen braking on. Stop vehicle and check power supply message came on. Original 12v battery still on the car, never had issues with that. Most charging done at 9.6 kW level 2. Dealership reproduced the problem and has now replaced the ICCU and fuse.

I was coming home from work on 1/13/2025 and got an alert. a red circle saying pull over and check the electrical system. when i pulled over the best i could the car went dark. i called Kia for road assistance and they dispatched a tow to the dealer. the next day the dealer called and told me the ICCU needs to be changed and arranged a loaner car for me. The Dealer has been very helpful throughout this ordeal thus far.

Description of Incident: 1. What component or system failed or malfunctioned, and is it available for inspection upon request? The high-voltage battery system and charging system in my 2024 Kia EV6 malfunctioned. Despite showing 40 miles of range remaining, the battery suddenly dropped to 5 miles before the car became completely unresponsive and failed to charge. Additionally, the vehicle could not be shifted into neutral or powered on. The vehicle is available for inspection upon request. 2. How was your safety or the safety of others put at risk? The sudden loss of battery range left me stranded at a Shell Recharge station in Elkridge, MD, at [XXX] on[XXX]. Being stranded at this hour posed a personal safety risk, especially in an unfamiliar area, as I was unable to move the vehicle. Moreover, the malfunction could endanger drivers if such a failure occurred while driving. 3. Has the problem been reproduced or confirmed by a dealer or independent service center? The problem has not yet been reproduced or confirmed, but I previously reported symptoms of 12-volt battery issues to the dealership on November 12, 2024, one day after receiving the vehicle. 4. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has not yet been inspected by the manufacturer or any other representatives. I am awaiting guidance on next steps from Kia and the dealership. 5. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? Yes, I noticed warning signs related to the 12-volt battery on November 12, 2024, shortly after receiving the vehicle on November 11, 2024. However, no specific warning lamps or error messages appeared at the time of the failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I've had to have my rental car jumped 3 times now, the check engine light has been on since I rented it, had to be reset and is now back on. I believe it's the 12v battery, it pops up warnings of battery discharge almost daily. All 3 times it was shut off and when I went to start it, it wouldn't turn on, 3 seperate people have jumped it for me now in 3 different locations, the last one being while I was working and had to end the delivery because my car would not start so I am now unable to work as they have paused my deliveries until my account is reviewed. I am putting the first date I noticed the check engine light, which was the day I rented the vehicle. The not starting has happened on the following dates: [XXX], [XXX] and today [XXX]. I recall noticing the battery discharge warning for the first time around the beginning of Oct, maybe closer to mid October. I rented it from hertz Uber rentals in Phoenix, AZ so I could work doing deliveries and rides. I have had it jumped twice in Phoenix and once in Prescott, AZ. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I leased a 2024 Kia EV6 on 1/27/24. On 2/22/24, twenty-six days after leasing the vehicle and an odometer reading of 616 miles, while on Washington state highway 903 there was a pop sound, the car slowed, and stopped displaying a “Check electric vehicle system” error. Due to the pop sound, we pulled over and barely made it off to the side of the highway before losing forward momentum. If this happened on a crowded freeway, the vehicle could have been disabled in a traffic lane. After 39 days, the dealer's service department found that inverter was "burnt and charred showing evidence of a fire in the system" and that the fire "potentially damaged the rear drive unit".

There are alot of electrical malfunctions including unnecessary and without warning emergency breaking that has injured me ( I temporarily have a rental car to recover from a right thoracic sprain, left hip contusion, and a right anterior chest contusion- I have medical documentation), the steering wheel jerking when no correction needed, the vehicle locking up on the tow truck driver, and a lot of different electrical malfunctions that seem to indicate a bigger problem. I have more evidence, but it would not let me submit more pictures.

8 days after purchase from dealer, new vehicle, it went into "zombie" mode. Electrical system for radio, climate, lights, etc. all worked but it wouldn't come out of park or neutral. The online app kept saying there were no mechanical problems even though it was "dead in the water" and couldn't be moved. Then the electronic parking brake engaged so it could not be towed. It had less than 400 miles, had been working fine in the prior 7 days. Stopped at Home Depot, when I came out it entered zombie mode, and it couldn't be moved or put into gear. Even though it was in neutral at times the electronic parking brake kept it from moving. I was told today it was a "front inverter" and Kia had to approve repairing it????