What 18 owners told NHTSA about the 2026 Genesis Gv70

I leased a 2026 Electric GV70 from Genesis in June 2025. In January of 2026, when driving the car I got a warning sign to stop the vehicle and check the battery supply. At that point, the car went into sever power reduction and would only go 20 MPH or so. After 20-30 minutes, the car completely shut down and became inoperable. Luckily, I was near home and was able to get my car home. I had to have the vehicle towed on wheels as it was completely frozen to the dealership. They diagnosed it as a failure of the Integrated Charging Control Unit (ICCU). They replaced the ICCU but identified other issues that to this day are unresolved and my car is still in the shop. These cars were subject to a recall for ICCU failure but only to model year 2025. These ICCUs are continuing to fail on the 2026 models, and at an alarming rate. The head of service at the dealership told me they were dealing with "hundreds" of ICCU failures on Hyundai/Genesis vehicles. If I had been on a highway traveling at higher speeds and the car suddenly lost almost all power and would only drive for another few miles before completely shutting down, it would have created a dangerous situation. These cars need to be recalled - again. Hyundai/Genesis clearly dont know how to make electric cars/battery packs that work and should be held accountable. I believe they are downplaying this situation due to the prior recalls/class action lawsuits and dont want to experience further reputational damage.

NHTSA ODI 11731269

Without any warning, on March 15, 2026, I turned out of a parking lot onto a major road and I noticed it wouldn't accelerate above 20 mph, so I pulled off the road. I tried again and my vehicle still failed to accelerate. And on my third attempt, my vehicle decelerated and was about to completely stall. I managed to turn into a parking lot and avoid getting rear ended. However, this could have been a fatal event. While I was trying to accelerate, the vehicle was quiet as if the car wasn't even running. After shutting the engine off for awhile, I was able to drive the vehicle with caution. I reached out to two Genesis service departments regarding my vehicle failing to accelerate while driving and neither had heard any previous complaints, and the earliest appointment would be mid April. There was no sense of urgency, as I'm left to hesitantly drive my vehicle at the risk of it happening again and getting rear ended. And when my vehicle does go in for service, I'm weary whether the problem will be resolved properly since the service department is unaware of the issue. In addition, I have had this vehicle for only 4 months and 1 month into it, I already took it to service because of fuel odor that had not gone away since the day 1. But the service department didn't find anything wrong with the vehicle, so nothing was done to it. I also swung by another Genesis service department, in case they happened to be familiar with the cause of the odor. My vehicle still has the fuel odor and now I'm wondering if that is related to my vehicle not accelerating. I am seeking your assistance to ensure that the problems with my vehicle are confidently resolved. And I wouldn't want this to happen to anyone else. I am thankful, I was driving and not my teen.

NHTSA ODI 11726876

National Highway Traffic Safety Administration Office of Defects Investigation 1200 New Jersey Avenue SE Washington, DC 20590 Subject: Safety Defect Complaint – Integrated Charging Control Unit (ICCU) Failure Vehicle: 2026 Genesis GV70 Electrified (EV) VIN: [XXX] To Whom It May Concern, I am submitting this complaint to report a safety-related failure involving my 2026 Genesis Electrified GV70, which experienced a sudden “Check Electric Vehicle System” warning consistent with a failure of the Integrated Charging Control Unit (ICCU). Incident Summary On February 5, 2026, at approximately 4,480 miles, the vehicle displayed a “Check Electric Vehicle System” alert and was no longer safe to operate. Due to the risk of propulsion loss and electrical system malfunction, the vehicle required flatbed towing to an authorized Genesis dealership for evaluation. A dealership service advisor subsequently informed me that the vehicle has been diagnosed with an ICCU failure, a component responsible for charging the 12-volt battery and maintaining critical electrical systems. Failure of this component can result in loss of drivability, propulsion limitations, or vehicle shutdown, creating a significant roadway safety hazard. Safety Concern Failures of the ICCU have been widely reported across Hyundai, Kia, and Genesis electric vehicles and have been the subject of prior recalls due to the potential for unexpected loss of motive power while driving. Despite prior recall actions, failures continue to occur, including in my vehicle. Current Status The vehicle remains out of service pending repair, and no written repair completion timeline has been provided. The failure rendered the vehicle unusable and required emergency towing. I respectfully request that the Office of Defects Investigation review continuing ICCU failures affecting Genesis, Hyundai, and Kia electric vehicles to determine whether additional corrective action or expanded remedies INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11716623

While driving on the highway, the car shut down with no warning messages and gas fumes filled the interior of the car. I was not able to move over to a completely safe spot on the road because the car shut down so quickly. I was not able to put the windows down as there was no power to the car and unable to exit the car because I was not in a safe spot on the highway. I had to remain in the closed car inhaling the gas fumes. I called 911 and they had me sit in the sheriffs car until a tow truck came to keep me out of the fumes. The car was towed to the dealership, it had 53 miles on it. This event was extremely dangerous. It is currently at the service department of the dealership for repairs.

NHTSA ODI 11695307