DETROIT—Multiple U.S. owners of Hyundai’s popular Ioniq 5 electric SUV have complained of completely or partially losing propulsive power, many after hearing a loud popping noise, the National Highway Traffic Safety Administration said Saturday.
Hyundai said it would offer a software update beginning next month and replace affected components if necessary.
The NHTSA said in a notice posted online that it received 30 complaints about the problem in 2022 models, of which it estimated 39,500 were on U.S. highways.
The Office of Defects Investigation at the NHTSA has opened a preliminary investigation and says Hyundai indicated in an initial review that a power surge was damaging transistors, preventing vehicles’ 12-volt battery from recharging….