2023 Kia EV6 transmission & drivetrain problems

Related recalls

• Recall 24V057000Jan 31, 20241,243 vehicles
  POWER TRAIN:DRIVELINE:DRIVESHAFT

  Kia America, Inc. (Kia) is recalling certain 2023-2024 Niro EV and 2023 EV6 vehicles. One of the drive shafts may have been improperly heat-treated, allowing it to break under load and resulting in a loss of drive power.

  Risk: A loss of drive power increases the risk of a crash.

  Remedy: Dealers will replace the drive shaft, free of charge. Owner notification letters were mailed March 28, 2024. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC295.

What owners say

1. Filed Aug 14, 2026FLElectrical SystemAcceleration & Cruise ControlTransmission & Drivetrain

   While driving southbound on the [XXX] in a rented 2023 Kia EV6 from The Hertz Corporation, picked up in [XXX] on XXX, the vehicle entered "Power Limited" mode without warning. The vehicle lost normal propulsion and decelerated from highway speed to a crawl, forcing 4-5 emergency stops onto the highway shoulder over several miles while semi-trucks passed at 70+ mph in live traffic, with two minor children in the vehicle. The vehicle was ultimately abandoned at a highway rest…

   NHTSA complaint #11756869 · source
2. Filed Jul 29, 2026WAElectrical SystemOther / UnknownTransmission & Drivetrain

   While driving a rented 2023 Kia EV6 on the freeway, the vehicle lost power and shut down completely, without warning, on multiple separate occasions during a single trip. This occurred at highway speed in live traffic, creating a serious risk to vehicle occupants and surrounding traffic. The vehicle was a rental (Dollar Rent A Car); no external damage or collision was involved. The vehicle has since been towed.

   NHTSA complaint #11753434 · source
3. 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
4. Filed Apr 27, 2026COElectrical SystemTransmission & Drivetrain

   ICCU failed despite all prior recall updates being performed. Incident began when home circuit breaker tripped; vehicle subsequently refused Level 1 charging with "Check Electrical System" warning. Per dealer suggestion, tested public chargers. Level 3 (DC) worked, but upon connecting to Level 2 (AC/J1772), a loud "pop" occurred, and the public charging station immediately suffered a mechanical failure/shutdown. Vehicle then displayed "Stop vehicle and check power supply,"…

   NHTSA complaint #11734074 · source
5. 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
6. Filed Mar 17, 2026VAElectrical SystemTransmission & Drivetrain

   ICCU Failure. It's been replaced by Kia under warranty. Initially Level 2 charging failed multiple times. Luckily mine didn't die on the road, but it very well could've like others reported.

   NHTSA complaint #11725085 · source
7. Filed Mar 4, 2026NJTransmission & Drivetrain

   The ICCU failed. The vehicle suddenly stopped on the road, would not go into any gear and could not be moved whatsoever, was stuck on the side of the road in a dangerous position. Called roadside assistance, after a few hours the vehicle was towed to the nearest dealership. After a week the vehicle had the ICCU replaced under warranty.

   NHTSA complaint #11722077 · source
8. 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
9. 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
10. Filed Jan 16, 2026VAElectrical SystemFuel, Hybrid & EV PropulsionTransmission & Drivetrain

    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…

    NHTSA complaint #11711508 · source
11. Filed Dec 27, 2025CTEngineFuel, Hybrid & EV PropulsionTransmission & Drivetrain

    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…

    NHTSA complaint #11707268 · source
12. Filed Dec 23, 2025UTElectrical SystemFuel, Hybrid & EV PropulsionTransmission & Drivetrain

    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.

    NHTSA complaint #11706763 · 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