What kind and where do you get a battery for the key fob.
Mine will usually only work once and then quit until a little while later it will work again like it might have a weak battery.
Insert tool at angle and pry back to seperate two halves with enough effort release the tab.
Note angle of tool once to halves release
Two halves apart with one flipped over
Gently sperate battery cover
Make sure to put battery in the same way and reverse to put back together by sliding everything back and you will here a snap when the to halves slide together.
Same procedure for fixed key. One 2032 battery is needed.