The Korean automaker will be launching a service campaign in July to address the issue.
The 2022 Hyundai Ioniq 5 is under investigation by the National Highway Traffic Safety Administration (NHTSA) over reports of power loss while driving. The NHTSA's Office of Defects Investigation (ODI) stated that it has received 30 consumer complaints due to an alleged loss of power in the Hyundai Ioniq 5, a vehicle that was named the 2022 World Car of the Year.
The ODI shared that Hyundai Ioniq 5 owners have reported a “loud popping noise” followed by a warning display on the dashboard and an immediate power loss. This prompted the NHTSA to conduct an investigation involving a total of 39,559 Hyundai Ioniq 5 EVs.
Hyundai Hyundai Hyundai NHTSA
The NHTSA has also initiated several interviews confirming a power loss problem in the 2022 Hyundai Ioniq 5. Fortunately, there were no reported crashes or injuries related to the issue as of this writing.
The ODI learned from Hyundai that the power loss issue is connected to the Ioniq 5's Integrated Charging Control Unit (ICCU), a component for powering the EV and the low-voltage 12-volt battery. Initial findings indicate that too much current within the ICCU can damage the transistors in the EV's Low Voltage DC-DC Converter (LDC).
Of note, the LDC transforms power from the high voltage battery to low voltage (12V) in order to supply power to the vehicle.
Hyundai Hyundai Hyundai
As such, the damaged transistors due to over-current result in the inability to recharge the Ioniq 5's 12V battery.
Hyundai said that it will be launching a service campaign in July to address the issue. The Korean automaker will either update the software of the affected vehicles or replace the ICCU if needed. It has also released a statement:
“We value our cooperative relationship with NHTSA and have engaged in frequent, open and transparent dialogue with the agency on this topic.”
This is not the first time Hyundai has encountered an issue concerning its EV battery. In 2021, the Korean automaker issued a global recall involving over 82,000 EVs after several Hyundai Kona Electric burst into flames while charging.
Hyundai Hyundai Hyundai
Keyword: Hyundai Ioniq 5 Under Investigation For Sudden Power Loss