hear a beep and dont know what it was for what should i do?

[bashi]

I was driving in my own time and heard a beep sound but didnt notice where it came from and haven't heard after

Do i get worried and what should i check or do i ignore.

[milane]

Next time you hear, immediately check the dash if it has some light and try to remember which light, so that you can better zero it down. Till then dont worry and enjoy ur ride.