2014 Jeep Cherokee - Key fob frustrations

1 key fob work and one does not , I have tried everything I know to make it work but to nothing. I can get a new one but will it self program or not.

They do wear out. I replaced both of mine at the same time on my Pontiac. The dealer needed to program them though for about $120. On some cars you can program them yourself but others require the dealer to do it. They won’t self program though.

Check with a locksmith, too. They can often cut/create/program new key fobs for a whole lot less than the dealer.