Hello all! New Prius owner, Just bought it 3 days ago! 2007 no nav system, but the key fob is silver logo and has the key button on the lower dash...so I assume it is a smart key system. However, the key fob will not unlock or lock the car, the panic button doesn't work either. The car will only start with the fob in the slot. Why will it start the car only in the slot? I changed the battery out in the fob and it still didn't lock/unlock. I didn't try the smart key start with the new battery...I don't even know if I have smart start. Why does it not open/lock the car? I bought a used one on ebay that is shipping and I see I have to get it programmed by a dealer or locksmith is that right? What do I have to do to get this fob to work?