Hyundai Says Failed Charge Control Units Are Causing Dead 12V Batteries

Ioniq 5 12v Battery Low Warning. Reasons Behind the 12V Battery Discharge Warning in the Hyundai iONIQ 5 However, Hyundai has provided solutions to address these problems, including limiting Bluelink server traffic and replacing the ICCU and ICCU fuse. But have been concerned about recent experiences with the 12v battery before and after a recent trip to the dealer

Hyundai Finds Causes For Ioniq 5
Hyundai Finds Causes For Ioniq 5's 12V Battery Drain, Reveals Fixes from atelier-yuwa.ciao.jp

Because the car is dead, the only way to charge the care is by "jumping" the 12V To borrow a line from "The Princess Bride" it was not dead, just mostly dead

Hyundai Finds Causes For Ioniq 5's 12V Battery Drain, Reveals Fixes

The car is 65% charged, but apparently the 12V battery is dead In an electric car, the battery is recharged from the high voltage battery that runs the motors. Because the car is dead, the only way to charge the care is by "jumping" the 12V

6 Common Hyundai Ioniq Battery Problems—Fixed EV Motors and Guide. It doesn't matter if battery tested fine, if you got that warning means the 12v is low In an electric car, the battery is recharged from the high voltage battery that runs the motors.

IONIQ 5’s 12volt battery is dead here's how I jumpstarted it YouTube. Maybe I'm wrong, if I remember correctly, I heard those first shipment of Ioniq 5 The accessories, e.g., radio, lights, seat heaters, power windows, infotainment system, all run off the 12v battery