Teg Keyless Remote

Alright, so I have a friend who has a 3rd gen teg, and shes got the keyless entry remote, however, from what I'm gettin, its not workin for whatever reason. She'd like to know how to program it...can she do it herself, or does she need to take it to the dealership?

Forgot to mention, car didnt come with one, but the dealership gave her one that wasnt programmed. She just wants to know if she can do it, like is there a way for her to do it, or does she have to have them do it for her?