If your Remote/Key Fob not responding?
If the buttons are not triggering the red light on the Key Fob, let's take a look at it!
Using a Razor Blade(carefully) or Credit Card, pry it open lightly at a corner:
Gently pull apart the key fob..and clean off that funky lint collection
Remove the transmitter guts(green board) from the clear silicone weather seal
Clean the contact points and inside of the weather seal with Rubbing Alcohol and a Q-Tip
Install Fresh Batteries ( 2x Cr2016 or 1x CR2032 ) with the "+" Facing down into the pocket
Test it out!