Well, I’ve been able to do what I’ve read is impossible or difficult… Program a smart key from another vehicle to my Prius!
Long story short, I couldn’t find my one and only key fob(I know, I had the tools and never added more to my car).
Now the hunt is on for the credit card-sized smart key! It’s for a Lexus but would love to just carry that in my wallet!!
I specifically remember reading somewhere that one of these FCC IDS should not be used on a Prius as they will not work, well. it works on mine!