We have a 2007 and my key fob seems to have 'lost' its association with the car- have replaced battery, red LED on fob lights up when buttons are pressed but the car does NOT recognize it AT ALL... I can't even start the car with the fob in the slot (either way up) Has anyone ever heard of this happening and does anyone know a way of 'fixing' it? My wife's fob works perfectly
First thing I'd try is use the other FOB to re-pair the other one via the "chicken dance": How to Program a New Key Fob for Full SKS Functionality | PriusChat
Thanks will try it! (from what I remember, I think I used my now non-working fob to program my wife's)