How to Repair fiat 500 key fob replacement 500 Keys There are several reasons why your Fiat 500 key FOB may stop working. One of the most common is when the small "watch" battery that's inside it dies. It's an 3.3 voltage lithium, CR2032, that is available anywhere for under $3. A locksmith is the best source to call if you require a new key for your car for...
