(dunno) I discovered today that the LIGHT ON REMINDER TONE does not sound on my car. I got out of the car with the headlight switch in the on position, and no beeping or anything. The lights did turn off after 30 seconds or so, but no aural alert. The manual does mention LIGHT ON REMINDER being adjustable in the info cluster, but in the SETTINGS I cannot find anything regarding the LIGHT ON REMINDER. Can you check to see if your GT - Tech has the reminder?