Showers can definitely wait until the coast was clear of looming death, ... and, once they were back on the train. That was a thing too. But the mess was cleared was some patience and arm power. And by that screen that's lightly glowing but on some kind of standby, there's a rather attractive button. (Not red.)

Pressing it will turn the screen on properly, and on Zechs's side will be luck: They can read the screen. Or, well, they can read the screen, but all Tidus will have to offer is-

"Great! Does it do anything!?"

This next part will be up to Zechs. A diagnostics of the station can be run, but there will come up multiple issues, errors. Components not connected that should, damage located at Server C...

Jargon, that essentially means: Make repairs to get the shields up and running!