2022 Kia EV6: sudden loss of power

Filed May 15, 2026 · Electrical · CA

Lost power while driving. 12Vbattery low voltage on dash. ICCU not responding. Dealership replaced ICCU and told me it wasn't under warranty. Had to pay out of pocket.

Filed May 7, 2026 · Electrical · AZ

Car lost power and stopped Diagnosed iccu failure Now reporting coolant issue following repair

Filed Apr 23, 2026 · Electrical · TX

The Integrated Charging Control Unit (ICCU) failed twice within four weeks. The first failure occurred in March 2026 and was repaired under recall SC327 with a replacement ICCU and fuse. The second failure occurred April 7, 2026, approximately 12 days after pickup. Symptoms: Vehicle failed to charge overnight on Level 1 and Level 2 circuits despite being plugged in. Later that day, while driving, a “Check Electrical System” warning appeared on the dashboard followed by sudden loss of power and acceleration. Vehicle fluctuated between 25-45 mph and could not maintain speed. Vehicle was driven approximately 2.2 miles to the dealership under its own power after warning onset. Safety risk: Sudden loss of power and acceleration while driving created a hazardous condition for myself. Dealer confirmation: The authorized Kia dealer confirmed a DTC for battery overheating and acknowledged the ICCU coolant was not fully topped off after the first replacement, suggesting the recall remedy was incompletely performed. The vehicle has remained at the dealer unrepaired since April 10, 2026. Component available for inspection: Yes, vehicle is currently at the dealership. Recall remedy concern: The SC327 recall remedy did not resolve the ICCU failure. A second failure occurred within two weeks of the repair. The dealer’s subsequent diagnosis of owner-caused undercarriage battery damage is contradicted by their own signed inspection report documenting all undercarriage items as passed with no damage noted

Filed Mar 2, 2026 · Transmission · VA

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.

Filed Mar 1, 2026 · Electrical, Engine · MO

Persistent ICCU failure causing charging interruptions, “Check Vehicle Charging System” → “Stop vehicle and check power supply” warnings, low 12V battery voltage (down to 12.1V), and risk of power loss/strand. Kia Connect sent “Charge Interrupted” alert during a session that reached 99%. Multiple prior recalls/attempts failed to resolve (Sep 2023 TSB ELE291 BMS, Jun 2024 SC271 ICCU SW, Jan 2025 SC273 VCU SW, May 2025 SA5999 limp-home logic, Sep 2025 dead 12V stranding). Towed Feb 2026 after stranding; dealer confirmed ICCU failed (DTC P1A9096), replaced ICCU (P/N 36400-1XFA0AQQK latest revision), fuse, and SW update under SC327 (24V‑867). Repair completed same day (Feb 24, 2026), but dealer skipped charging system test and filling coolant. Safety impact: Stranded wife twice (dead battery and iccu failure), tow required, potential sudden power loss while driving. Report purpose: Document recurrence despite multiple recalls; seeking the federal safety agency tracking for effectiveness of SC327 remedy.

Filed Feb 24, 2026 · Electrical · 23,000 miles · NJ

The contact owns a 2022 Kia EV6. While the contact’s daughter was driving approximately 40 MPH, the messages "Electric Failure: Stop Car Do Not Drive” and “12-Volt Battery Voltage Low" were displayed on the instrument panel. The vehicle then failed to exceed 20 MPH, causing the driver to activate the hazard lights while pulling over to a side street while driving approximately 5 MPH. On the side of the road, the vehicle lost power. The vehicle was left at the side of the road to be towed to the nearest dealer. The dealer was contacted and confirmed that it was a known failure with the Interior Command Centre Unit(ICCU), and that the ICCU might need to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 23,000.

Filed Feb 22, 2026 · Electrical, Fuel system · SC

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.

Filed Feb 16, 2026 · Driver assistance, Electrical · MO

I am reporting a recurring safety defect. While driving the vehicle the Integrated Charging Control unit (ICCU) failed and caused the vehicle to lose power and stop in the road. I feel strongly that this ICCU issue and subsequent failure should be made into a safety recall. Kia / Hyundai / Genesis all share the same e-gmp platform and utilize an ICCU that fails and leaves motorists in unsafe situations. The ICCU should be recalled and replaced with a unit that works. The current recall remedies are only software updates, and are insufficient to prevent this safety issue and hardware defect, posing ongoing safety risk to drivers and other motorists. The ICCU should be a permanent fix, rather than just software patches that do not fix the issue. My vehicle had all software patches and was up to date, yet those were not sufficient to prevent this hardware defect and safety situation.

Filed Feb 6, 2026 · Electrical, Transmission · WI

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

Filed Dec 23, 2025 · Electrical, Fuel system · UT

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.

Filed Dec 22, 2025 · Electrical, Fuel system · IL

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.

Filed Dec 13, 2025 · Electrical · MO

I had an ICCU failure. There were no warning lights . The dealership initially could not find the problem but when I brought it back again they did confirm the ICCU failed and replaced it. Failure of this causes the car to stop driving and lose power causing you to stop on the road as well as be unable to charge the car.