My (very used) Prius came with one fob; I have a copy of the Techstream software and planned to program a new one, but despite my best efforts at finding one that should have worked, i was never able to get it to work as SKS, so it will start the car, but it can't work the door locks.

I actually need to get another, because that one was a backup I left in Massachusetts and now that my partner is living with me I need one for her too.