Have you tried rebooting the infotainment system? Good trick to know for a number of bugs.

Press and hold the main screen button until the screen goes totally black (continue past the screen cleaning mode). It'll reboot in around a minute or less.

 

I had the no blinker sound after this last update, a reboot fixed it.

 

Can confirm. Same issue. Reboot fixed it.

 

If rebooting does not work, it might be a faulty audio module that needs replacing.

This happened to me in my 2024 S60 Recharge within the first week of ownership. I tried rebooting multiple times. After a few hours of trying, I called my dealership, and they got me in to diagnose the problem and do the warranty work. I was lucky that they could squeeze me in next day and have everything sorted in a few hours.

 

Here's the warranty invoice with the part replacement highlighted in yellow and the troubleshooting steps circled in red. Hopefully you won't need to do this.

 

Thanks everyone for the replies! The reboot worked. It also fixed an issue where the doors sounded the "all unlock," except that the front passenger door would not unlock. So as we speak, I'm back in business. Thanks again. Merry Christmas!

P.S. Here is a link to a longer post from several people who've had this infotainment system issue:

https://www.swedespeed.com/threads/all-sounds-stopped-working.662803/page-2?post_id=8300690&nested_view=1&sortby=oldest#post-8300690