The chime is produced through the radio speakers, can I ask if the radio is working? Also have you checked all fuses with the system on, this guide can help.
https://www.2carpros.com/articles/how-to-check-a-car-fuse
If the radio works and the fuses are good it sounds like the SJB (smart junction box) is going out but to be sure let's do a CAN scan, you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.
Here is a video to show you how:
https://youtu.be/u-4syLc-ifQ
Here is how to change the SJB out, check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
Images (Click to make bigger)
Friday, June 23rd, 2023 AT 10:27 AM