Fiat 500 Key Fob Replacement
If your 500 keyfob stops working, you can use a different one to see if it is able to be detected by your car. If it does, it could be a problem due to the battery or water damage to the original fob.
First replace the battery. Make sure that the new # CR2032 coin battery is inserted correctly, with the "+" side facing down inside the fob.
Dead Battery
The battery is typically the reason for the fob not functioning. This is easy to fix and the majority of fobs will give you a warning when the battery is getting depleted. You can find the correct procedure on YouTube for nearly every key fob in your car or in your owner's manual. You can also bring it to a locksmith in your area or the dealer that gave it to you to replace it.
Sometimes, a fob may be inoperable and there could be an issue with the circuit board in the internal circuit. It's rare however, it can occur. If you dropped the fob onto something hard, it could cause damage to the internal chip. It can also happen if you are using an aftermarket fob and the key doesn't work. In this case you'll need to visit a locksmith or dealer and have it reconfigured to work with your 500.
One 2012 FIAT 500 Flip Key Remote - resembles Ilco brand with lock, unlock and trunk buttons. New replacement keyless entry remote (will require cutting and programmed by a locksmith)
Damaged Chip
A key fob with the fiat 500 number is a wireless device that provides the signal needed for the car to start once you press the button. It contains a microchip with information about the code needed to connect with your car. If the chip is damaged, it can't send the correct code, and the car won't start. A locksmith can repair this type damage. United Locksmith is capable of providing this service for old models as well as the latest ones, so don't be afraid to call them.
You can purchase a new fob and have it professionally programmed by locksmiths. This is much cheaper than going to a dealer and will work exactly the same way. Locksmiths will require specific information from you, including the year your car was manufactured as well as the name of its model.
Rub the chip with an old dollar bill if you're not certain what to do. The copper on the bill is abrasive enough to remove dirt and oxidation, however, it won't cause harm to the microchip. If the chip is physically damaged however, it may not be able to be repaired. This could happen if you drop it, run it over with your vehicle or experience any other kind of physical stress.
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Whether you accidentally dropped your keys in the pool, put them in your pocket while you were swimming at the beach, or splashed them with water on a rainy day, it's likely that your key fob is likely to suffer water damage. Even if it's just a little water on the keys, this could cause serious problems to its electronics and stop it from working correctly.
The good news is that you can usually solve this problem by removing the fob's key and using a 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 will then begin working normally.
You can also take it to an auto repair shop or locksmith to have it professionally cleaned and programmed. They can employ special equipment to ensure that the key fob is compatible with the car's computers.
If your Fiat 500's key fob ceases to work, it could be frustrating and stressful. You might be tempted to head to the dealer to replace your key fob, but this can be costly and inconvenient. A locksmith can replace your key fob with no need to visit an auto dealer. They are a much better option than a dealership.
Pairing Issues
When you drop your key fob, or it ceases to function and nothing else seems to be wrong with it there could be a chip that has gone off the rails. It could be due to water damage or an unresponsive battery.
Often, this can be done by following the directions in your owner's manual. However it's a good idea to have an automotive locksmith perform this procedure if you're having problems or if the directions in the manual don't work for you. This will ensure that the chip isn't fried, and it's also the most economical option.
Some 500 owners have also reported that their key fobs do not lock their vehicles. This can be a huge issue if you're driving to a gas station and want to fill up. Some owners have reported the locking mechanism of their 500's malfunctioning and having to replace the entire steering intermediate shaft. Fiat has actually addressed this problem in an technical bulletin (TSB).
If you're having trouble with your Fiat, an experienced locksmith could help. They can duplicate your key or make you a brand new key that locks and starts the vehicle. They can do this without having access to your old key, and is usually less expensive than buying a key from a dealer.