All the warning lights on my 2019 Ioniq lit up like a Christmas tree! The car drove normally though. I turned it off and on again when I got home, and everything seemed fine – no more warning lights. But then, the next day, boom! All the lights came back on again when I started it. I tried disconnecting the battery for a while, but it didn't fix the problem. I brought it to the dealership, and I was really concerned that they said they hadn't encountered this issue before. They'll still try to diagnose the problem by checking for error codes. Has anyone else had this happen to them?