You need to detach the key blade from the plip or if you have a spare key put it in the ignition and turn the ignition on, hold the plip up to the interior light,(the receiver is behind it) and hold the button down for about 10 seconds. It should then be reprogrammed to your vehicle. I have done this a number of times as I used to work for peugeot in the parts department. If you have a second plip that works you can do it easier, you still need a spare key or key blade from one of the plips, and you then hold them both up to the interior light with the buttons still held down, the working plip will help to reprogram the non working one. ph
Patricia, March 2010
