FYI :

Recently my 2014 Iron  fuel lamp stopped working ,it never came on.

Since it is in warranty ,took it to the dealer and they told me some sensor sender was faulty and replaced it ...

Hopefully itll work from now on...

But if anyone is having  similar issues with it , i suggest go to ur dealer and get it checked ...

I also believe that the tell tale lights are LED, and if one blows then the whole block needs replacing.