The ioniq 6 horn is a two (2) tone horn. First, one (1) of the tones went out (lower tone). Now, the horn completely dsn’t work. Reading online, this is a common issue with the 2023 & 2024 ioniq 6. This is the same horn (car is the same platform) as the ioniq 5, and lots of forums online also have people posting about their horns going out and not working at all.