The car made a loud popping sound as I was driving and then error messages appeared on my dash saying ‘Check electric vehicle system’ and ‘Stop vehicle and check power supply’. The car was slowed down to 20 mph on a 45 mph road and I pulled over to get out of traffic. Luckily I wasn’t far from home so I drove back very slowly. I had the car towed to the dealership and they have indicated that the ICCU failed and needs to be replaced, but they don’t have any available until possibly 4/1/25. There were no messages received prior to the failure.