Turn signals work, but no clicking sound

I recently had to jump-start my 2012 JSW. After the jump, the turn signals work (they flash), but there's no clicking sound.

I had previously noticed that this would happen from time-to-time (e.g. no "clicking") but only when other system noises or chimes are sounding. Now it's just flashing silence... all the time.

It's not a huge deal, but I have inadvertently left my signal on a couple of times on the highway.

Do I need a new relay? If so, does anyone know which part number?

Thanks!