Fiat 500 Key Fob Replacement If your 500 key fob isn't working Try using a different one to see if your car can detect it. If it does, the problem is most likely due to the original fob's battery, or water damage. Replace the battery first. Make sure that the new #CR2032 coin battery is inserted correctly, with the "+" side facing down in the fob. Dead Battery Most of the time when a fob won't work, it's just because the battery is dying. This is a simple fix and the majority of fobs will warn you when the battery is depleted. You can find instructions on YouTube for almost any key fob on your vehicle or in your owner's manual. You can also take it to a local locksmith or the dealer who gave it to you to repair it. Sometimes, a device stops working due to a glitch on the internal circuit board. It's not common but it does occur. https://www.thekeylab.co.uk/fiat-car-keys/ may be damaged in the event you drop the fob over something that is hard. It can also happen if you use an aftermarket key and the fob won't work. In this situation you'll need to go to a dealer or a locksmith and have it reconfigured to work with your 500. One 2012 FIAT 500 Flip Key Remote - Similar to Ilco brand with trunk, lock and lock buttons. This is a new keyless entry remote (will require cutting and programmed by a locksmith) Chip Damaged Fiat 500 key fobs are wireless devices that transmit signals to the car whenever you press the button. It's equipped with a microchip, which has information about the code which is required to communicate with the car. If the chip is damaged, it can't send the correct code, and the car will not start. It's possible to repair this kind of damage and a locksmith can assist. United Locksmith can complete this repair on both traditional and modern models, so don't be afraid to contact us. You can buy a new fob and have it programmed professionally by locksmiths. This is a lot less expensive than going to a dealer, and it will work similarly. You'll need to provide some information for the locksmith, like the year that your car was made and the model. Rub the chip with an old dollar bill if not certain what to do. The copper in the bill is abrasive enough take away oxidation and dirt but won't cause any damage to the microchip. The chip might not be repaired in the event of physical damage. This can happen when you drop it or get it pushed over by your vehicle. Water Damage If you've accidentally dropped your keys in the pool, left them in your pocket while swimming at the beach or splashed them with water on a rainy day you can be sure that your fob will have some water damage. Even if you only have a little water on the key, it can cause serious problems for the electronics inside and stop it from working efficiently. The good news is that you can solve this problem by removing the key fob and using the paper towel to cleanse it of any dirt or water that remains. Once the fob has dried and is dry, you can replace its battery. It should then start functioning normally. You could also take your fob to a local locksmith shop or auto shop to have it professionally cleaned and programmed. The professionals will be able to use special equipment to make sure that the key fob is compatible with your car's computer system. If the key fob in your Fiat 500 stops working, you may feel frustrated and anxious. It can be costly and cumbersome to take your key fob to a dealer. A locksmith can replace your key fob without needing to visit a dealership. They are a better choice than a dealer because they can handle every aspect of the replacement of your car's key fob without the requirement for a dealership visit. Pairing Issues If you drop your key fob or it ceases to function and there's nothing going on there could be a chip that has gone off the rails. It could be because of water damage or an unresponsive battery. Most of the time, this can be accomplished by following the instructions in your owner's manual. However it's a good idea to get an auto locksmith perform this procedure if you're having issues or the instructions in your manual aren't working for you. This will ensure that your chip isn't fried and will likely be the least expensive option. Some 500 owners have also reported that their key fobs won't allow them to lock their cars. This can be a big problem if you're heading to an gas station to fill up. Some owners have reported their 500's locking mechanism failing and needing to replace the entire intermediate shaft for steering. Fiat has actually addressed this issue in a technical bulletin (TSB). If you're experiencing issues with your Fiat, an experienced locksmith could help. They'll duplicate your key or make you a new one that will unlock and start your car. They can do this without seeing your old key, and it's typically less expensive than buying a key from a dealer.