Originally Posted by Infinity

It's been years since I looked into it, and at the time there was some discussion that the skreem module had a limited number of keys it could maintain in its memory. It was said at the time this enabled MB to limit the number of available keys to a given car. It made sense, as they most likely have a limited number of key cuts across the production of VINs. The same theory applies to home door locks too, maybe 100 different cuts that can be matched up at the store to allow the "one key for all locks" scenario. For MB its a way to limit the number of individual keys floating around and enhances the "anti-theft" aspect. Gone in 60 seconds fans will remember the reference to laser cut keys. It would make sense to limit the number of key fob id codes since I would suspect most would assume a limited number of key holders per household, and a lost key could simply be deleted should that need to be done.

Again this was a long time ago, and may not have applied to the crossfire.