Fiat 500 Key Fob Replacement
If your 500 keyfob stops working, try a different one to determine if it will be recognized by the car. If it does, then the problem is probably related to the battery or water damage to the fob that was originally used.
Replace the battery first. The "+" side should be facing down.
Dead Battery
The battery is often the reason behind the fob's inability to function. It's easy to fix and most fobs will provide a warning signal if the battery is low. You can find the correct procedure on YouTube for nearly every car's key fob or look in your owner's manual. You can also replace it by taking it to an expert locksmith or the dealer who supplied it to you.
Sometimes, a fob will be inoperable and there could be an issue with the circuit board in the internal circuit. It's not often however, it can occur. If you dropped the fob on something hard it may damage the internal chip. This can also happen when you use an aftermarket key and the fob does not function. In this case, it is necessary to see a dealer or locksmith to have the key reprogrammed so that it works 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 need to be cut and programmed by locksmith)
Damaged Chip
A key fob from Fiat 500 is an wireless device that sends the signal for the car to start when you press the button. It has a microchip which contains information about the code which is required to communicate with the car. If the chip is damaged, it can't transmit the correct code, and the car won't start. Locksmiths can fix this type of damage. United Locksmith is capable of completing this service for classic models as well as newer ones, so don't be uneasy about calling them.
You can purchase a new fob and have it professionally programmed by locksmiths. It's less expensive to do this than going to the dealer, and it is just as effective. A locksmith will need some specific details from you, like the year your car was made and the name of its model.
Rub the chip with an old dollar bill if not sure what to do. The copper in the bill is abrasive, and can remove oxidation and dirt. However, it won't cause harm to the microchip. The chip might not be repaired in the event that it has been physically damaged. This could happen if drop it, knock it over by your vehicle or experience any other kind of physical trauma.
Water Damage
Water damage is likely to happen on your fob, whether you dropped it in the pool by accident, left them in pockets while swimming, or splashed water on them in a rainy afternoon. Even if it's just some water on the keys, this could cause serious problems for the electronics inside and stop it from working effectively.
It is possible to solve this problem by removing the fob and cleaning it with a paper towel. Once relevant resource site is dry and clean, you can replace the battery and it should start working properly.
You could also take your fob to a local locksmith or auto shop to have it professionally cleaned and programmed. These professionals will use special equipment to make sure that the fob's key works with the computer in your car.
If your Fiat 500's main fob fails to function, it can be a stressful and frustrating. It's costly and time-consuming to take your key fob to the dealer. A locksmith can replace your key fob, without having to visit the dealership. Because of this, they are a better choice than the dealership.
Pairing Issues
When you drop your key fob or it ceases to function and there is nothing problem there could be a chip that is malfunctioning. It could be because of water damage or a dead battery.
This is often done by simply following the directions in your owner's manual. If you're having issues or your manual isn't working then you should hire an automotive locksmith complete this task. This will ensure that the chip isn't fried and will likely be the least expensive option.
A few hundred owners have reported that their key fobs will not lock their cars. This can be a problem when you need to refill at the gas station. Some owners have stated that the locking system on their 500 has malfunctioned and they've had to replace the entire intermediate steering shaft. This issue was mentioned in a technical service bulletin (TSB) by Fiat.
If you're having trouble with your Fiat vehicle, a reputable locksmith can help. They can duplicate the key you have or create a new key that locks and starts the car. They can do this without ever seeing your old key and are usually less expensive than buying it from a dealership.