reprogramme

Just a quickie, Can the key transponder be reprogrammed to another car or is a new one required? Thanks

hi. i'm sorry if this has been answered before but the threads ive seen are for ibiza's.. i have just got a flip key for my 02 leon. my blip key is 433mhz and new one is 434mhz, now according to threads the flip key will work with my car. i have looked in the manual, followed it on there...