Fiat 500 Key Fob Replacement
If your 500 key fob doesn't work Try another one to see if your car will recognize it. If it does, then the issue may be with the battery or water damage on the original fob.
Replace the battery first. The "+" side should be facing downwards.
Dead Battery
The battery is usually the reason for the fob's inability to function. This is a simple fix and most fobs will notify you that the battery is dying. You can find the instructions on YouTube for nearly any car's key fob or look in your owner's manual. You can also bring it to a locksmith in your area or the dealer who supplied it to you to repair it.
Sometimes a fob stops working due to a fault with the internal circuit board. It's not often however, it can occur. The internal chip may be damaged in the event you drop the fob over something that is hard. This can also happen when you use an aftermarket key, and the fob doesn't function. In this instance it is essential to go to a dealer or locksmith to have the key reprogrammed to work with your 500.
One 2012 FIAT 500 Flip Key Remote that resembles Ilco brand with lock, unlock and trunk buttons. thekeylab.co.uk is a new keyless entry remote (will require cutting and programmed by a locksmith)
Chips damaged
A key fob with the fiat 500 number is wireless device that gives the signal to the car to start once you press the button. It has a microchip that 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 won't start. It is possible to repair this kind of damage and a locksmith could help. United Locksmith can complete this repair on both classic and newer models, so don't hesitate to call.
A locksmith can program a new key fob. This is much less expensive than going to a dealer and will work exactly the same way. A locksmith will require specific details from you, like the year your car was manufactured and the name of its model.
If you are not sure of the best solution to this issue, try using a US dollar bill. The copper on the bill is abrasive enough to remove oxidation and dirt, but won't cause any harm to the microchip. The chip might not be repaired in the event of physical damage. This can happen when you drop it or hit it by your vehicle.
Water Damage
If you've 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 that your fob will suffer from water damage. Even if you only have tiny amounts of water on the key, it could cause serious problems with its electronic components.
The good news is that you can often solve this problem by removing the key fob and using the paper towel to cleanse it of any remaining dirt or water. After the fob is dry you can replace the battery. It will then begin working normally.
You can also take it to an auto shop or locksmith to get it professionally cleaned and programmed. These experts will be able to utilize special equipment to ensure that the key fob is compatible with the car's computer system.
If the key fob on your Fiat 500 stops working, you may be frustrated and stressed. You might be tempted to go to the dealer get your key fob replaced, but this can be expensive and unaffordable. Locksmiths can take care of every aspect of the replacement of your car's key fob without the necessity of a dealer visit. Locksmiths are better than a dealer since they can handle all aspects of the replacement of your car's key fob without the need for a dealership visit.
Pairing Issues
If you lose your keyfob, or it stops working and nothing else seems to be wrong, it may be the chip. This could be due to water damage or a dead battery.
Often times this can be done by following the steps in the owner's manual. However it's a good idea to have an automotive locksmith take care of this if you're having problems or if the directions in the manual don't work for you. This ensures the chip isn't damaged and is the most affordable solution.
Another issue with 500 owners is that the key fob will not lock the car. This could be a problem when you need to refill at an gas station. Some owners have even reported their 500's locking mechanism breaking and they had to replace the entire intermediate shaft of the steering. Fiat has actually mentioned this problem in an technical bulletin (TSB).
A reputable locksmith can assist you if your Fiat has issues. They can duplicate the key you have or create a brand new one that locks and opens the car. They can do this without seeing your old key, and is usually cheaper than purchasing one from a dealer.