Stereo & Electronics - keyless entry thing...?

out of no where my keyless entry does not work ??? worked this morning.... go out to get in and hit the unlock.. and nothing...

What to do??? 95 z28

ok just took my toggle apart and i see it has two batterys ill replace those and see how things go.

See if the batteries are in correctly. They may be dead as well.

Funny I replaced my batteries too because I thought they were the problem but it seems like sometimes it doesnt work, sometimes it does... been thinking of taking the remote apart and cleaning the contacts or such.