Fiat 500 Key Fob Replacement
If your 500 key fob fails to function Try a different one to see if the car will recognize it. If it does, the problem is likely with the original fob's battery, or water damage.
Replace lost fiat 500 key . Make sure the new # CR2032 coin battery is inserted correctly, with the "+" side facing down in the fob.
Dead Battery
The majority of the time, when a fob's not working, it's because the battery is dead. It's simple to fix it, and most fobs provide a warning signal if the battery is not fully charged. You can find the correct procedure for the majority of car fobs YouTube or in the owner's guide. You can also change it by taking it to an expert locksmith or the dealer who supplied it to you.
Sometimes a fob stops working due to a fault in the internal circuit board. This is a bit rare but it is possible to occur. The internal chip can be damaged in the event you drop the fob on something hard. It could be a problem if you have an aftermarket fob and the key does not work. In this situation it is imperative to visit a dealer locksmith to have the key reprogRammed to work with your 500.
One 2012 FIAT FIAT 500 flip key remote - Looks-alike Ilco with lock, unlock, and trunk buttons – new keyless entry replacement (will need to cut & program by a locksmith).
Chips that are damaged
Fiat 500 key fobs are wireless devices that send a signal to the car every time you press the button. It is equipped with a microchip that contains details about the code required to connect with your car. If the chip is damaged, it won't transmit the correct code and the car won't begin. Locksmiths can repair this type of damage. United Locksmith can complete this service on both classic as well as modern models, so do not be afraid to contact us.
You can purchase a brand new fob and have it programmed professionally by a locksmith. It's less expensive to do this than going to the dealer, and it works the same way. Locksmiths will require specific information from you, including the year that your car was manufactured and the name of its model.
If you are not sure of the best solution to this issue try rub the chip with a US dollar bill. The copper in the bill is abrasive and can remove oxidation and dirt. However, it won't harm the microchip. If the chip is physically damaged however, it may not be in a position to be repaired. This can happen when you drop it or run it over by your vehicle.
Water Damage
Whether you accidentally dropped your keys in the pool, threw them in your bag while swimming at the beach, or splashed them with water during a rainy day It's likely that your fob may have water damage. Even if it's just a small amount of water on the key, it can cause serious problems to the electronic components of the key.
It is usually possible to solve this issue yourself by taking the fob off and cleaning it with a paper towel. Once the fob has dried and is dry, you can replace its battery. It should then start working again.
You can also take your fob to a local locksmith or auto shop to get it professionally cleaned and programmed. These experts will be able to use special equipment to ensure that the key fob is compatible with the car's computer system.
If your Fiat 500's keys fob fails to function, it can be stressful and disorienting. It can be costly and time-consuming to take your key fob to the dealer. Locksmiths can replace your key fob without needing to visit an establishment. They are a better option over a dealer as they can take care of all aspects of your car's key fob replacement without the requirement for a dealership visit.
Pairing Issues
If you lose your keyfob, or it stops functioning and nothing else appears to be wrong, it may be the chip. This can be due to water damage, a dead battery or it could just be that you need to reprogramme it.
This can often be done by simply following the directions in your owner's manual. If you are having trouble or your manual doesn't work and you need to have an auto locksmith do this task. This will ensure that the chip is not damaged, and it's the least expensive alternative.

Another issue with 500 owners is that the key fob will not lock the car. This can be a huge problem if you're heading to an gas station to fill up. Some owners have complained that the locking system on their 500 has malfunctioned and they've required replacement of the entire intermediate steering shaft. Fiat has actually mentioned this issue in a technical bulletin (TSB).
A reputable locksmith is able to assist you if your Fiat is experiencing problems. They can duplicate your key or make you a brand new one that is able to lock and start the car. They can make this happen without ever seeing your old key and are usually much cheaper than getting it from a dealer.