How to increase the sound volume of the signal systems

What is your question?

All of sudden, the sound of the signaling system is hard to hear when I make turn.( it’s a Toyota RAV4 hybrid)

What makes this problem better or worse?

Not getting worse nor getting better simply cannot hear the turning sound , I don ‘t have an hearing problem.

How long has your 2017 Toyota RAV4 had this problem?

I loaned my car to a hound friend for 5 days, the problem appeared after I got my car back