Omission of 48-volt electronics is particularly surprising in Hyundai's E-GMP vehicles, which incorporate various other advancements like 800-volt charging. Hyundai has even introduced a solution that does away with the old-style lead-acid 12-volt battery in some of its hybrids —but not any of its EVs thus far.

Hyundai is recalling over 145,000 Ioniq and Genesis vehicles due to a 12-volt battery charging issue that could cause the EVs to lose drive power and increase the risk of a crash. NHTSA says the cause is the vehicles' Integrated Charging Control Unit (ICCU),

Some Hyundai models may have faulty wiring that would allow the vehicle to roll away. Other Hyundai, Kia and Genesis cars may have damaged EV charging units.