Sadly the days of Toyota being reliable are slowly disappearing.
As I said I am not certain about the hose being a recall; however, we had this pipe installed whilst it was still under Toyota extended warranty, with no prompting and it was not leaking at the time.
It doesn't take long to have a quick look at the intermediate shaft slip joint under the dash.
In regards to the vents, turn them to recirculate and see if it still does it. The intake vents are right behind the bonnet in the windscreen cowling, so it is probably forcing in engine heat as you accelerate.