Fiat 500 Key Fob Replacement
If your 500 keyfob ceases working, try a different one to test if it will be detected by the car. If it does, the issue may be related to the battery, or water damage to the original fob.
First, replace the battery. The "+" side should be facing downwards.
Dead Battery
The battery is often the reason for the fob's inability to function. This is a simple fix and most fobs will give you a warning when the battery is failing. You can find the correct procedure on YouTube for almost any key fob for your car, or in the owner's manual. You can also replace it by taking it to the locksmith or dealer who sold it to you.
Sometimes, a fob won't working due to a glitch in the internal circuit board. It's rare however it can occur. If spare key for fiat 500 drop the fob on something sharp, it may damage the internal chip. It can be a problem if you have an aftermarket fob and the key doesn't work. In this instance, you will need to visit a locksmith or dealer and get it reprogRammed to work with your 500.
One 2012 FIAT 500 Flip Key Remote - Look-alike Ilco brand with lock, unlock and trunk buttons - new replacement keyless entry remote (will need to be cut & programmed by locksmith)
Chips Damaged
Fiat 500 key fobs are wireless devices that send an electronic signal to the car whenever you press the button. It's equipped with a microchip, which contains the code that will allow it to communicate with the car. If the chip is damaged, it can't send the correct code, and the car will not start. Locksmiths can fix the damage. United Locksmith is capable of performing this service for traditional models as well, as for newer ones, so don't be in a rush to call them.
Locksmiths can program an entirely new key fob. It's less expensive to do this instead of going to the dealer, and it performs the same. You'll have to provide certain details to the locksmith, such as the year your car was made and the model.
If you're not sure how to solve this problem you can try rubbing the chip with the help of a US dollar bill. The copper in the bill is abrasive enough to take away oxidation and dirt however, it won't cause damage to the microchip. The chip may not be repairable in the event that it has been physically damaged. This could happen if drop it, run it over with your vehicle or any other type of physical strain.
Water Damage
Water damage is likely to occur on your fob, no matter if you dropped them in the water accidentally or left them in a pocket while swimming, or splashed water over them during a rainy afternoon. Even if there's only an ounce of water on the key, it could cause major problems for 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 is dry you can then replace its battery and it will start working normally.
You can also take it to an auto shop or locksmith to have it professionally cleaned and programmed. They will be able to use special equipment to make sure that the key fob works with your car's computer.
If your Fiat 500's keys fob isn't working, it can be frustrating and stressful. It can be expensive and cumbersome to take your key fob to a dealer. Locksmiths can take care of every aspect of the replacement of your car's key fob without the requirement of a dealership trip. They are a better choice over a dealer as they can take care of all aspects of the replacement of your car's key fob without the need for a dealer visit.
Pairing Issues
If you lose your key fob, or it ceases to function and nothing else seems to be the issue there could be a chip that is malfunctioning. It could be because of water damage or a dead battery.
Often times this can be accomplished by following the instructions in your owner's manual. However it's recommended to hire an automotive locksmith do this if you're having difficulties or the steps in your manual aren't working for you. This ensures the chip isn't fried and will likely be the most affordable solution.
500 owners have reported that their keys won't lock their cars. This could be an issue if you're at a gas station and want to refill. Some owners have reported the locking mechanism on their 500's failing and needing to replace the entire intermediate shaft for steering. Fiat has actually addressed this issue in an technical bulletin (TSB).
If you're experiencing issues with your Fiat vehicle, an experienced locksmith could help. They can duplicate your key or create a new one that is able to lock and start the vehicle. They're able to do this without seeing your old key and are usually much cheaper than getting it from the dealership.