Birdyboy

Hi.

I have two remotes for my keyless entry system, but now none of them works.
I have seen some posts on this forum regarding some DIY reprogramming of the remotes, but i'm not sure i understood everything in the posts. (not english speaking - from Norway).
Can someone please explain in plain easy language how i can try to reprogram my remotes for this?
I'm also wondering if i can F up anything that'll result in my car not starting when doing this?

Thanks in advance.


Peter