A:AnswerDepending on how long you have had it either contact viper CS or buy a new one. I just bought one from bb and it works fine. I have also contacted viper and had a new one sent to me. This is my 3rd remote/fob in about 5 years. First one was probably poorly made so … My experience is they are good for about 2 year then you need to replace them.
A:AnswerIt’s a function but it would be hard to explain all of the functions download the manual and read it Or go to YouTube that’s a good way to figure out what it does