How do you program a key in a Land Rover?

It depends on if all keys are lost or not. I have programmed several Land Rover keys successfully with my tool which i purchased from http://www.ecutool.com/productshow.asp?id=11272&cso=Autoshop

If all keys are lost, you need to delete all keys first; and then add new key.

If you have working key, so you just need to add new key directly.

Most of Land Rover key programmer tools need the PIN code, but my SKP-100 does not need. Also it could program used keys.