Here are a few things you can try to get your key fob working again:
# Change the battery
# Wipe the board down. Here is a video explaining this: ***[link|https://youtu.be/n2zxzpLUx0M|https://youtu.be/n2zxzpLUx0M|new_window=true]***
# The old car battery reset trick: I know this sounds absurd, but it works sometimes and is worth trying. If you exhausted all of the options above, disconnect both terminals on your car battery for 10 minutes. Then reconnect them and try your key fob.
# New fob.
For more detailed information on these tips, please visit the full guide on ***[link|https://www.keylessentryremotefob.com/how-to-fix-a-key-fob/|How To Fix A Key Fob|new_window=true]*** here.