My navigation system is stuck in a reboot mode where is flashes a very bright white screen. I was driving at night and the screen is so bright, and thereâs no way to turn it off or adjust the brightness. It was bright that I could not see the road and hit the ditch when I went to turn onto my road. Its very hard to drive at night with this bright light flashing from the entire radio screen it makes it extremely dangerous to be out after dark.