Regulators at the National Highway Traffic Safety Administration (NHTSA) are reviewing reports of power outages on Hyundai Ioniq 5 vehicles.
NHTSA’s Office of Defects Investigation (ODI) said it received 30 consumer complaints alleging “a loss of drive power” in 2022 model year Hyundai Ioniq 5 vehicles.
An ODI document estimates that around 39,500 of the vehicles are in the affected population.
“Many consumers report a loud popping noise followed by an alert on their dashboard and immediately experience a loss of power ranging from a reduction to complete loss of power,” ODI said in an update on the ongoing investigation.
ODI said it learned from Hyundai that the motive power failure was related to a charging system responsible for powering the hybrid vehicle and the low-voltage 12-volt batteries.
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“Preliminary verification shows that overcurrent within the ICCU (Integrated Control Charging Unit) can damage the transistors (FET) in the LDC (DC-DC converter), resulting in the 12V battery being unable to charge ‘ ODI said.
The bureau is initiating a preliminary assessment to “find out the scope and severity of the potential issue and to fully assess the potential security-related issues.”
According to the Associated Press, Hyundai spokesman Ira Gabriel said the company is fully cooperating with the investigation and plans to update the affected vehicles’ software starting next month. If necessary, the company will also replace the charging unit.
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