Kia EV6 Fuel System Problems

Fuel System complaints by model year

What owners report

initially filed [redacted] (1/2/2026) 2nd (additional info) filed [redacted] (2/10/2026 3rd (3 page service report) [redacted] (2/11/2026) Vehicle is registered to Christopher Rojik, however it is my car that I drive, etc. today I am filing this for you folks that since I filed the complaint with Kia Corp. and sent them the service report, etc. Today, 2/19/2026 I received a formal Settlement Agreement and General Release to sign and accept. I am not signing it, as well as it fully releases Kia from any future issues, etc. outside of the warranty and whatever other details it claims. This will or should be the last for me to file. I had no idea they send me this kind of offer. As it is listed specifically as a "GOODWILL GESTURE" and they are not accepting fault or something like that. I attached inidividual pages, hopefully I can upload them as pdfs, we will see. …

I was driving on the highway when I heard a pop like a loud fuse sound from the back seat area. Suddenly the car dropped 15 mph from 70 mph to 55 mph and the battery and electrical system warning lights came on and the vehicle said check electrical system. I was able to continue with my hazard lights on to exit the highway, at which point the max speed of the vehicle dropped to 45 mph. It would not go faster no matter how hard I pushed the gas pedal. I was able to pull over to a gas station and park in a spot but the vehicle had to be towed. When the tow truck arrived, the vehicle also flashed with the 12V battery low warning. It was diagnosed as a failed ICCU, which rapidly drained the 12V battery. The car is only 4 months old with about 7,300 miles. This is a serious safety concern, especially with the sudden failure and loss of power. …

Vehicle Information: 2024 Kia EV6 (VIN: [redacted] ) Mileage at time of failure: 14,005 Complaint Description: My 2024 Kia EV6 experienced a complete failure of the 12-volt battery system despite the high-voltage traction battery showing approximately 80% state of charge. The vehicle became completely inoperable without warning. The 12-volt battery was fully discharged and the vehicle would not enter READY mode. The vehicle required a jump start to become operational. After being jump started, the 12-volt system did not appear to charge properly, suggesting a failure of the Integrated Charging Control Unit (ICCU), which is responsible for converting high-voltage battery power to maintain the 12-volt battery. This failure created a significant safety concern because: The vehicle became completely disabled without warning. …

Was backing out of a parking lot space when a loud popping sound was heard from the right rear portion of the car. Shortly after a check electrical system message was displayed and to pull over. Then eventually had a power limited message pop up after 12V battery charging status/condition was checked by roadside service. Would turn out to be the ICCU (Integrated Charging Control Unit) after dealership nearby (Peak Kia) was able to diagnose the problem. Unknown if the failed part is available for inspection. I wouldn't say my safety or others safety was put at immediate risk, but could have been since the car did eventually completely shut down right as I was able to get home only about 1-2 miles away. Vehicle was seen by dealership a few days later and as far as I'm aware are the only entity to do an inspection on the vehicle. …

While changing lanes on a freeway, the car passed through a narrow strip of slush from recent snowfall. The car immediately disabled the motors, preventing acceleration and regenerative braking for nearly 50 seconds. There were no warning lights, sounds, or messages displayed on the car's gauge cluster display, either for the initial loss of propulsion or for the restoration of propulsion. This caused a loss of traction when the car eventually passed through a patch of packed snow and ice.

On April 6, 2025, while charging my car my Juicebox tripped a breaker. When I reset it the Juicebox was showing errors and was inoperable. I tried to use my backup charger (Blink) but it tripped a breaker and became inoperable too. I took the car a commercial charger (ChargePoint) and it would not charge the car. Kept getting a "charge interrupted" message. The first Kia dealer I went to did not have a Level 2 charger and could find nothing wrong and refused to help repair the car. The second Kia dealer had a Level 2 and confirmed it would not charge, but Kia would not authorize a warranty fix. That dealer suggested leaving the car for a few days and hope the car generates a fault that Kia will accept to authorize a fix. What component or system failed or malfunctioned, and is it available for inspection upon request? The Level 2 AC charging no longer works. …

After driving my vehicle for a few minutes on my way to work my car lost speed rapidly, going from 40 mph to 25 then seconds later to 22 mph. I tried to accelerate; the car was unresponsive and would not accelerate over 22 mph. Dropping speed rapidly and suddenly during rush hour on a secondary road with a limited shoulder was unnerving as the slow response required waiting for a gap in traffic flow to safely turn around to head home. Upon returning home a message appeared on right side of dash board in an orange circle "check vehicle system" with a small upside down triangle with letters EV also inside this circle and a "small orange battery" picture showed on the left. I called Kia Roadside Assistance and reported the above and was advised it would take about 90 minutes for a tow to dealer as I was unwilling to drive it. …

While driving in a major thoroughfare, a red warning came on to check the electrical system, and that propulsion power may be limited. We pulled over to a parking area and consulted the manual. It suggested turning the engine off and back on again - we did so, but the warning remained. We determined that we were 2-4mi from our Kia dealer. Based on the manual information, we believed we would be able to drive at a slow speed and selected a route towards the dealer that avoided the highway. However then the 'turtle' warning light came on and we we were reduced to walking pace. We pulled into a side road, but were unable to pull over completely before we lost all motion. We activated the warning lights, but after a minute or so there was not even sufficient power for those. This was a rainy day with not great visibility. We feel lucky and this could have been so much more dangerous. …