Know it's a long shot, but I am looking one person - is it you? did you live in Michigan? buy a prius there in 2008, Spartan. did you recently trade in your 2008 prius in Illinois? I recently purchased a one owner 2008 prius, with only one "key" I was hoping to see if I could find the original owner and see if he or she still has the other one. thanks for looking.
Good luck in your search! I didn't even think about doing this when I bought mine last year lol. The good news, it's easy to program a new one following the steps in this thread. How to Program a New Key Fob for Full SKS Functionality | PriusChat Just make sure you buy a brand new one from a dealer online. I got mine on Amazon but the seller was Daytona Toyota. Used ones cannot be easily reprogrammed.