I checked my owner's manual, as you suggested. Indeed, there's a mention about how to activate and deactivate flashing when remote-locking the car. In fact, there's a mention for cars with EVIC and without EVIC. Which is weird, because my car, although equipped with EVIC, does not have the option for activating/deactivating flashing when locking, either. And the key combination to do it, does not seem to work, either. On top of that, in my manual there's no mention about honk when locking.
So, I downloaded and checked the owner's manual from the jeep.com page. This manual seems to be the one for the US, and is pretty much the same as mine (although mine is in Spanish, of course). But in the US manual there is a mention on how to change settings for flashing and honking (for both EVIC or not). For the honk you have to use the "panic" button, which my remote does not have.
It's not something that important, really, but since the car will be dur for service in a few thousand kilometers, I'll check with my mechanic if there's something that can be done.
Thanks, from Spain