You will need to do one of 3 things depending on your abilities.

1) replace and reprogram a new FOB, use the # on the back to find a direct replacement or see dealer.

2) toss the Fob and use the key, old school style

3) Break out your surgical precision skills and soldering iron and solder and reconnect the 3 points on the terminal. I've done it and it worked well for a while. Nice way to look at it, its already broken, trying to fix it won't make it any worse. If it doesn't work, you can still order a replacement.

Either way, Good Luck