Originally Posted by Ent-f-mc
I've haphazardly (I can't read Japanese) browsed Subaru Japan's website and haven't yet found an explanation for the passenger side rear-view mirror wart. Speculation has been that its a blind-spot warning component (what about driver's side?) or a puddle light component (what about driver's side?).
Can someone point me to a webpage which explains the function of the wart on the new Jspec Subaru Forester passenger side rear-view mirror?