Fiat 500 Key Fob Replacement
If your 500 keyfob stops working, try a different one to determine if it will be detected by your car. If it does, then the issue may be due to the battery or water damage to the original fob.
Replace the battery first. The "+" side should be facing downwards.
Dead Battery
The majority of the time, when a fob doesn't work, it's just because the battery is dead. This isn't a problem to repair and most fobs give you a warning when the battery is failing. You can find instructions on YouTube for almost any key fob on your vehicle or in the owner's manual. You can also change it by taking it to an expert locksmith or the dealer who gave it to you.
Sometimes, a fob may cease to function, and it could be a problem with the circuit board inside. This isn't a lot of common but it is possible to happen. If you dropped the fob on something hard it could damage the internal chip. It can also happen if you use an aftermarket key, and the fob doesn't function. In this case you'll need to go to a locksmith or dealer and get it reprogRammed to work with your 500.
One 2012 FIAT FIAT 500 flip key remote – Looks like Ilco with locks, unlocks, and trunk buttons – new keyless entry replacement (will require cutting and program by a locksmith).
Chips damaged
Fiat 500 key fobs are wireless devices that transmit an alert to the car whenever you press the button. It is equipped with a microchip that contains the code that is needed to communicate with the car. If the chip is damaged, it will not transmit the correct code, and the car will not start. A locksmith can repair the damage. United Locksmith is capable of performing this service for traditional models as well, as for newer models, so don't be in a rush to call them.
You can buy a new fob and have it professionally programmed by a locksmith. fiat 500 new key is a lot less expensive than visiting a dealer, and it will work similarly. You'll have to provide certain information to the locksmith, for example, the year in which your car was manufactured and the model.
If you are not sure how to solve this issue you can try rubbing the chip with a US dollar bill. The copper in the bill is abrasive enough remove oxidation and dirt, but it will not cause any harm to the microchip. The chip might not be repairable when it's physically damaged. This can happen when you drop the chip or run it over by your vehicle.
Water Damage
Whether you accidentally dropped your keys in the pool, put them in your bag while swimming at the beach or splashed them with water on a rainy day it's likely your fob will have some water damage. Even if it's just a little water on the key, this can cause serious issues with its electronics and prevent it from working effectively.
It is possible to fix this problem yourself by removing the fob and cleaning it with a paper towel. Once the fob is dry you can then replace its battery and it should begin working normally.
You could also take your fob to a local locksmith shop or auto shop to get it professionally cleaned and programmed. They can employ special equipment to ensure that the key fob works with the computer in your car.
If the key fob in your Fiat 500 stops working, you may feel irritated and stressed. It's expensive and difficult to transport your key fob to the dealer. Locksmiths can replace your key fob without having to visit a dealership. Because of this, they are a much better option than an auto dealer.
Pairing Issues
If you accidentally drop your keyfob, or it stops functioning and nothing else seems to be wrong, it could be the chip. This could be due water damage or a dead battery.
This is often done by following the directions in your owner's guide. If you are having trouble or your manual isn't working it is recommended that you have an automotive locksmith complete this task. This ensures the chip isn't damaged and is the most cost-effective solution.
Another problem with some 500 owners is that the key fob doesn't lock the car. This can be a problem when you need to refill at gas stations. Some owners have reported the locking mechanism of their 500's malfunctioning and they had to replace the entire steering intermediate shaft. Fiat has actually addressed this problem in an technical bulletin (TSB).
A reputable locksmith can assist you in the event that your Fiat is experiencing issues. They'll duplicate your existing key or design an entirely new one that can unlock and start your vehicle. They can accomplish this without having to see your old key and are usually more affordable than purchasing it from a dealership.