2023 Kia EV6 fuel, hybrid & EV propulsion problems

Related recalls

No recalls on file.

What owners say

1. Filed Sep 20, 2026MOElectrical SystemEngineFuel, Hybrid & EV Propulsion

   The ICCU on the car died in the middle of the street, car would not shift out of park. Car completely died after a few minutes.

   NHTSA complaint #11765685 · source
2. Filed Jun 14, 2026CAElectrical SystemFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   First ICCU the power completely went out on 2/23/26. Power went out again April, 2026. Currently car is immobile and unreliable and not safe for driving due to power failures. Towed car to Kia Cerritos. Car supposedly "fixed" (with other issues I've reported to KIA of America & CA BAR/DMV) Currently 12V battery is not holding charge as of 4/27/26, 4/28/26, and 5/2/26. I received a letter from KIA stating ICCU and inability to charge, Keep this Letter in your Glove Box for a…

   NHTSA complaint #11744054 · source
3. Filed May 12, 2026MDElectrical SystemFuel, Hybrid & EV Propulsion

   The ICCU unit failed. The message "Check Electrical System" appeared on the instrument cluster. Low-voltage battery voltage was 12.0V and vehicle speed was limited to 60 mph. Maximum speed was gradually reduced to 30 mph over a period of 40 minutes (voltage was 11.5 V) with minimal 12V loads. I pulled over and called a tow truck to the nearest service center. Kia confirmed the ICCU was defective and replaced the part under warranty.

   NHTSA complaint #11737319 · source
4. Filed Apr 19, 2026GAElectrical SystemEngineFuel, Hybrid & EV Propulsion

   *ICCU assembly and ICCU fuse fault (a kia recall SC327( NHTSA ID: 24V867000) for ICCU was performed months early but does't help AND iccu crash) *yes - cars stop workind in the midle of nower at 317 mile away from home with 5 persons in) *yes ( kia already performed recall SC327 for our car but doest help and the ICCU crash) *yes *yes-vehicle broke down while driving.Had to be towed to closest Kia dealer(the incidend hapened 317 miles away from our home Dacula GA 30019)

   NHTSA complaint #11732210 · source
5. Filed Apr 18, 2026FLElectrical SystemFuel, Hybrid & EV Propulsion

   Got in my car to leave a store and heard a loud pop and noticed a smell like an electric motor burning. Backed out of my space to drive home and the car displayed several error messages- Check electric vehicle system, turtle mode, power reduced. I was stranded and had to order a tow truck to be towed to the dealer and get a ride home.

   NHTSA complaint #11732104 · source
6. Filed Apr 12, 2026ILElectrical SystemFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   Repeated failed attempts to repair ICCU culminating in ICCU failure. May 15, 2024 – Initial repair attempt (ICCU-related recall/service). September 5, 2024 – VCMS logic recall performed. December 19, 2024 –second repair attempt for ICCU-related issue. October 16, 2025 – Limp-home logic recall performed. March 11, 2026- Vehicle experienced a complete loss of power and was rendered undrivable. Repeated attempts to avoid ICCU failure still resulted in said ICCU failure and a…

   NHTSA complaint #11730649 · source
7. Filed Mar 30, 2026VAElectrical SystemFuel, Hybrid & EV PropulsionAcceleration & Cruise Control

   I was driving 40mph and received a yellow error message along the lines of "electrical system issue, please check" and my speed was limited to 25mph. After trying to get the car to a safe location (as I was on a narrow two-lane road), the error changed to a blinking red error and my speed was further limited to 12mph. I was unable to get the car one mile to the dealer for service, so I stopped the car in a parking lot and had it towed to the dealer. The dealer diagnosed the…

   NHTSA complaint #11728041 · source
8. Filed Mar 3, 2026MAEngineFuel, Hybrid & EV Propulsion

   On April 24, 2025, I plugged my Kia EV6 into my 48-amp hardwired ChargePoint HomeFlex at 7:26 PM. Around 10:30 PM I heard a noise outside but did not investigate. At 12:25 AM I noticed I had not received a “charging complete” notification. The Kia Connect app showed the vehicle at 74% and no longer charging. The ChargePoint app was unresponsive.\n\nThe next morning I found the charger’s 60-amp breaker had tripped. After resetting the breaker and rebooting the charger, the…

   NHTSA complaint #11721716 · source
9. Filed Mar 2, 2026WAElectrical SystemFuel, Hybrid & EV PropulsionTransmission & Drivetrain

   1st instance: Battery Coolant errors that occurred on and off. 2nd instance: The ICCU unit failed and car was not able to charge via level 2 and only fast charge. Car was still operable. Dealer replaced ICCU 3rd instance: The ICCU failed and car was rendered inoperable. Dealer Replaced ICCU. We are now on our third ICCU since we purchased the car in 11/26/2022. This would be considered a lemon law

   NHTSA complaint #11721594 · source
10. Filed Feb 25, 2026NCElectrical SystemEngineFuel, Hybrid & EV Propulsion

    On April 24, 2025, I plugged my Kia EV6 into my 48-amp hardwired ChargePoint HomeFlex at 7:26 PM. Around 10:30 PM I heard a noise outside but did not investigate. At 12:25 AM I noticed I had not received a “charging complete” notification. The Kia Connect app showed the vehicle at 74% and no longer charging. The ChargePoint app was unresponsive. The next morning I found the charger’s 60-amp breaker had tripped. After resetting the breaker and rebooting the charger, the EV6…

    NHTSA complaint #11720337 · source
11. Filed Feb 23, 2026NJElectrical SystemFuel, Hybrid & EV Propulsion

    Pulling out of garage, car warned of limited speed and then within about 30 seconds completely shut down-- could not move, operate locks, etc. Car could not be started again and had to be towed away. 12v battery had been drained down to 4v due to failure of ICCU unit. Dealership replaced entire ICCU unit and fuse.

    NHTSA complaint #11719960 · source
12. Filed Jan 28, 2026NYElectrical SystemFuel, Hybrid & EV PropulsionTransmission & Drivetrain

    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…

    NHTSA complaint #11714011 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology