2023 KIA EV6 Power Train Problems

While driving my Kia EV6 in the middle of a snowstorm, the vehicle experienced a sudden and severe power failure. I heard a loud popping sound from the rear of the cabin, after which the vehicle immediately entered reduced-power (limp) mode. Within approximately one minute, the vehicle shut down entirely and lost all propulsion and mobility. I was able to move the vehicle to a safe location only because I was not in traffic or on the highway at the time of the failure. Had this occurred at highway speeds or in active traffic, it would likely have resulted in a dangerous situation with a high risk of collision, especially given the severe winter weather, low visibility, and slippery road conditions. The vehicle has approximately 21,000 miles. This is the second failure of the Integrated Charging Control Unit (ICCU) in this vehicle. The vehicle was inspected by an authorized Kia...

While driving at normal speed, my Kia EV6 experienced a sudden and complete failure of the ICCU system with zero warning. The vehicle instantly lost all propulsion power and all 12V electrical power, rendering the car uncontrollable and unsafe. I was unable to accelerate, unable to place the vehicle in gear, and unable to activate hazard lights. This occurred despite the vehicle being at approximately 99% battery charge. This failure created an immediate and severe safety hazard, as the vehicle effectively became a dead object in traffic without warning to surrounding drivers. There was no prior alert, no dashboard warning, and no indication of impending failure. This defect is well-documented and pervasive across the Hyundai–Kia–Genesis E-GMP electric vehicle platform and has persisted despite multiple recalls spanning several model years. Kia has acknowledged the issue through recalls but does not have a reliable or permanent fix. Even newer model year vehicles...

I am submitting this as a supplemental statement to my existing NHTSA safety complaint regarding my electric vehicle, KIA EV6, 2023 model. Since my original filing, the vehicle has now experienced loss of power / loss of propulsion a total of three times. These incidents occur without warning, are unpredictable, and render the vehicle unsafe to operate. The vehicle can suddenly lose motive power, creating a serious risk of collision, particularly in traffic or at speed. The manufacturer and authorized dealership have been unable to identify the root cause or permanently repair the defect. Dealer documentation reflects that the issue “cannot be replicated,” and no corrective action beyond temporary battery charging or system reset has been performed. No explanation has been provided as to why the power loss occurred or how it will be prevented from recurring. Because the defect is intermittent and safety-critical, I no longer feel safe driving...

While driving, heard a pop and a check electric vehicle system error popped up on the dash. Car was not drivable except for very low speeds shortly after (impacted safety of the drive) until it eventually stopped being able to turn on at all.

The vehicle experienced a total power failure resulting in complete inoperability (no start, no unlock, no electrical response). This is the second occurrence within approximately five weeks. The most recent incident occurred after the vehicle was fully charged and driven the day prior. There were no warning lights or messages before the failure. The vehicle was previously inspected by an authorized dealer and a manufacturer service campaign related to the charging/low-voltage system was performed, after which the problem recurred. This condition can strand the driver without warning and poses a safety concern.

The ICCU in my Kia EV6 failed while driving. Thankfully I was not involved in a crash, but my speed was capped at 30 MPH, crawled back home, where the vehicle wouldn't start. I had to get it towed to the service center. All of this besides all recalls and software updates being addressed. There were multiple warning lights that went off during my drive: "Stop vehicle and check power supply" "Check electric vehicle system"

On January 23 2025, while driving on the highway, the car lost power an had limited control. The car was towed to a dealer and it was determined that the ICCU failed. The car was at the dealer three weeks earlier for a recall related to the ICCU (ICCU (SC273A VCU SW LOGIC UPGRADE (VSC) • SC273A and ICCU INSPECTION/REPLACEMENT • SC302 ). Obviously, the recalls did not prevent the ICCU failure.

driving at around 35mph I heard a pop and a warning showed up on the dash stating "stop vehicle and check power supply". This warning put the car into limp mode as I was about to turn on to a busier road to get to my place of employment. The car was then towed, at the request of Kia, to the nearest dealership. It was diagnosed a few days later as having a faulty ICCU, or integrated charging control unit. There were no indications of the problem before the loud pop which I am assuming was a fuse blowing, and the car entering limp mode and showing warnings on the dash. This is a known issue by Kia as I have had my car in for multiple recalls regarding the ICCU.

I have had 3 incidents where the ev6 went out of power. The one recent incident is when the car suddenly started giving red alert on low power and suddenly slowing down even when I try to step on the pedal to accelerate. Please see my video and photos of these incidents. And all these times my main battery of ev6 was always having charge higher than 40%. I was driving on all 3 occasions, once on highway close to the exit where I had to pull over to curbside. The ev6 has hence lost my trust since these type of sudden power failures could lead to my life straight being on risk - the 12 volt battery has died two times after I purchased the car in feb 2023! Kia themselves do not know what issues exist in the car- the recalls have happened three times, as I type...

I was on my way to the highway when about one mile from home when without warning vehicle went into Limp Mode. Acceleration suddenly dropped to 25mph. It was very dangerous trying to drive uphill on a busy road at limited power to get back to my home. Thankfully I was not yet on the highway. Dealer said that both the ICCU and fuse that were inspected a month ago due to a recall and found to have no error codes in January now need to be replaced. Parts on back order with no ETA.

My Kia EV6, AWD Wind has the exact problem described in this Ionic 5 video, [XXX] , which addresses your TSB 24-EV-003H. It appears my EV6 uses the same electric oil pump (EOP) as the Ionic 5, so I am not sure why the EV6 was not included in your TSB? The first 14 months I owned my car, I loved it, then in June after I started driving for 45 to 60 mins, the car ride started becoming rough or unsmooth. After researching it on the Internet and purchasing some diagnostic tools, I figured out, that when I start driving the car there is a demand signal for the EOP but the pump has no rpm, no torque and no DC current. Depending on driving conditions, it appears the rear motor stops propelling the car when it reaches 190 to 205 degrees and the front motor kicks in to...

The contact owns a 2023 Kia EV6. The contact stated that while driving 72 MPH, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. In addition, the contact stated that the console displayed that the drive mode independently switched from rear wheel to front wheel only. The vehicle was driven to a safe location and parked. The contact allowed the vehicle to sit for approximately thirty minutes; then the vehicle was started the vehicle and driven to the destination. The failure reoccurred, and the failure was persistent. The vehicle was taken to the dealer; however, the failure could not be duplicated. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 8,000.

Vehicle lost its power while trying to park. It could not be locked either. This is the second time this has happened. The first time, dealership said they replaced the auxiliary battery. When it got towed the second time, the dealership said, we only recharged the aux battery during the last complaint! Now, the dealership does not have anyone who can look into this issue for one week. Added to that, they do not have any loaner cars either! The car has 10,523 miles on it now. Car had 8000 miles during the first incident. We feel this is dangerous, unacceptable quality and not to mention, unbecoming of a vehicle brand not to give us a loaner car and expect us to wait a minimum of 10 days to figure out the problem.

Vehicle does not reliably handle the 12V battery well. Many times, I see it sitting at 12.8 VDC when driving the vehicle. On a ICE vehicle, the charging voltage is close to 14V when running/driving. On 3 separate occasions, when I tried to "start" the EV6, the 12V battery was too dead to allow the car to be started. Basically stranded. This can be life threatening if this occurs in frigid temps. Or a hazard to traffic if/when the car tells you to "pull over safely, immediately". OK, I can "block the box" because my car died??? Kia and Hyundai need to address this issue that's common to their recent "luxury" EVs. With all the high-tech these cars have, why can't it manage the charge-state of the 12V battery? Tesla vehicles do not have this issue (I believe). Tesla EVs do "lose" their 12V battery over time, but that is...

I leased a 2023 Kia EV6 vehicle and on October 30, 2023, I was 45-60 minutes into my first road trip when a warning displayed in the dashboard followed immediately by a reduction of motive power. The warning displayed was a turtle icon and the words “Power Limited.” Traveling on CA I-5 when this occurred putting me in a very dangerous situation. I navigated several lanes of traffic, vehicle decelerating, to reach the shoulder and pull over then to merge into existing traffic traveling at a high rate of speed only to advance 7-10 miles before the warning display reappeared. I then repeated the process another 7-8 times until I reached my destination. Later that day, again, 45-60 minutes non-stop when the warning display reappears for the second time and I’m forced to repeat the process another 7-8 times to make it to the dealership. I was told the vehicle...

In addressing your inquiries: 1. **Component or System Failure:** - The charging system of my vehicle malfunctioned at DC Fast Charger and all charging levels. This can be inspected upon request. 2. **Safety Implications:** - On January 2, 2024, charging issues at a DC fast station resulted in error messages, and on January 8th, I was stranded for 3 hours in cold weather with only 3 miles of range, posing a significant safety risk. 3. **Confirmation by Service Center:** - The issue has been documented with the dealership, but a comprehensive resolution is pending. 4. **Inspections by Others:** - The vehicle has not been inspected by the manufacturer, police, or insurance representatives at this point. 5. **Warning Signs:** - Error messages occurred on January 2, 2024, during a DC fast charge, and the severity of the issue became evident on January 8th, resulting in an extended charging time.

The motor inverter for the rear motor failed while I was driving. The power cut out, and luckily I was able to drift over to the side of the road. On a highway, it would have been very dangerous. The dealer diagnosed the inverter issue, and said it needs to be replaced. The car has not been inspected by the manufacturer, the police, or insurance representatives. A warning message appeared the moment the power cut out. It said, "Check electric vehicle system."