The marketing material suggests that weather and runway conditions are taken into account when selecting a landing site. So I would assume the answer to all of those is that it won't pick that runway.

And if the aircraft is low on fuel or isn't making enough power to make that runway... Well, the usual happens - a forced landing, aka a crash landing.

I don't think this is meant to be used as a cop-out by the pilot. "My engine quit! You deal with this, computer!"