Hyundai Motor Co and its affiliate Kia Corp are recalling more than 480,000 vehicles in the United States due to a faulty charging unit that could pose a fire risk, according to the National Highway Traffic Safety Administration (NHTSA).

The recall covers certain Hyundai Kona Electric, Hyundai Ioniq Electric, and Kia Niro Electric vehicles from the 2019 through 2021 model years. The NHTSA stated that a damaged ceramic capacitor within the battery management system of these electric vehicles could result in a short circuit, increasing the risk of a fire.

Both Hyundai and Kia said they are aware of fires, injuries, and one death linked to the issue, with the death occurring in South Korea. The South Korean automakers have not disclosed details of the incidents or the cause of the fatality.

Owners of the affected vehicles will be notified by Hyundai and Kia beginning April 22. The companies will inspect and replace the battery systems free of charge as necessary. In the meantime, owners are advised to park their vehicles outdoors and away from structures until the recall repairs have been completed.

The NHTSA said it has opened an investigation into the matter in November 2021 after receiving complaints from vehicle owners.