I know Gen 2 Prius can only have up to 5 key fobs registered with ECU. I'm having trouble with programming a new non-SKS key fob. It got me wondering, maybe the new key fob isn't being programmed because I maxed out the 5 registered key fobs? How can I check how many key fobs have been registered (hopefully without using Techstream)? and more importantly, how can I clear it, without clearing the only key fob that works at the moment?
I’m in the same boat. I just bought a 08 and I only came with 1 non SKS Fob. I’m planing on buying 2 more. What is a techstream? An OBD 2 reader of some sort? Forgive me I’m used to Range Rovers.
