Error message indicate loss of charge capacity. Car slowed down, with enough range to pull off the road. Dealer indicates the integrated charge control unit (ICCU) failed, and quit charging the 12 volt system. Waiting for parts (1 month so far). Seems like the same issue reported under NHTSA recall 272 for the Ioniq 5 Ds Hyundai have a list of failed ICCUs, and whether there might be a batch of these units that are failing, or is this just a random occurrence?