When pushing the release button on the trunk, the Trunk won't open. When holding the trunk release button on the remote I can hear two clicks from the fuse box area, but the trunk won't open. It opens normally with the mechanical handle inside the car of course and all other Smart Entry functions work normally.

Any idea what could it be?

I also checked the fuse list in the manual but nothing there that can hint on a fuse or relay, it is mostly acronyms and 3-4 letter codes for different systems.

I checked both remotes - same behavior with both.

Thanks.

 

Problem solved.

Car came back few days ago from the body shop for hail damage repair, so I assumed that whatever went wrong, went wrong when they worked on it.
I removed the trunk cover and discovered a loose connector. By loose I mean not connected anywhere. Looked around and found an empty socket in the lock mechanism. The loose connector was too short for that socket so I realized they connected the long connector (that is supposed to go to the locking mechanism) to the push-button and they just left the shorter cable loose, apparently didn't know what to do with it. Go figure people...
Anyways - moved the longer cable to the lock, the short loose one went to the push-button and everything is working fine.