Fiat 500 Replacement Key Fob It might be time to change the battery if the 500 remote key fob is not working. If you replace the battery, but it doesn't work it could be a problem elsewhere. United Locksmith specializes in the production of new keys for classic cars. We have all of the tools and accessories needed for this type of service. Dead Coin Battery A dead battery is the most common reason for your Fiat 500 keyfob not locking or unlocking the doors. The key fob has a coin cell battery that will drain quickly if it is not used often enough. If your remote started to show signs of weakness such as a loss of range or stopped working completely it is likely that the battery is dead. Metal clips keep the battery in place within the key fob. If the clips are not secure, they could cause contact issues that prevent your remote to receive power. With a small flathead screwdriver, push the retaining clip outwards to remove the current battery and then insert a fresh one. Make sure that the battery you choose to use has the same voltage, size and specifications as the original. Water exposure can cause the key fob to become corroded or damaged. Even a short bath in warm, soapy water can damage the chip. Keep your key fob dry. Water Damage If your key fob isn't working correctly, it could be due to water damage. https://www.thekeylab.co.uk/fiat-car-keys/ are fitted with rubber seals that stop them from being damaged by rain or splashes of water, however it is crucial to keep your keys safe from the ocean, pool, and washing machine! The key fob comes with an electronic chip that transmits an alert to the immobilizer system of your car. The chip allows the 500 to start and lock. If it gets wet, however it will not work. If you're interested in checking whether your key fob functional it is possible to clean the internal electronics with isopropyl or an electronic cleaner. However, it's recommended to purchase a replacement from a dealer instead of trying to fix an item that is submerged in salt water. A replacement fob can cost you some money, but it's a lot less expensive than paying to have your Fiat 500 towed to a dealership and repaired there! You could also do it yourself by following just a few steps. Be sure to have the correct type of battery before attempting to open your keyfob. You can find step-bystep instructions for any car keyfob on the internet. Faulty Chip The chip inside the key fob connects directly with the immobiliser of your car to ensure that the vehicle will only start when right keys are in place. If the chip is damaged or destroyed the car won't start regardless of what you do. Water damage or a dead cell battery are the most frequently cited reasons for the chip being damaged. It is best to hand over the repair to a professional locksmith who can repair the chip in a short time and at a a reasonable price. If your key fob does not function after exposure to clean water from a tap or rain then remove the battery. Wipe down the electronic component using a paper towel. If the key fob does not function, there is the possibility that it's an issue with the component and requires to be replaced. Some people will go to their dealer when they are in need of a new Fiat key fob, but this is a costly option. United Locksmith is the best place to go if you need your Fiat keyfob repaired at a reasonable cost. We have the equipment and know-how necessary to repair your Fiat key fob in a quick and professional manner. Faulty Receiver Module Fiat key fobs send an alert up 50 feet away to the vehicle, which allows it to unlock and lock the doors (and start the vehicle if it has automatic transmissions). However there are a few things that could cause the fob to stop working. This includes a dead coin battery water damage buttons, worn ones or a problem with the receiver module and signal interference or an electronic chip malfunctioning. If the fob was in the pocket of someone who has suffered extreme trauma (such as being dropped onto the floor or washed in the washing machine), it may not be able to connect with the Body Control Module (BCM) of the vehicle. This is because the BCM is a secure system that can only accept a signal from a genuine key and not accept any other. You'll need to replace the fob in case this occurs. A professional locksmith will take care of the entire replacement process including programming a new key to your 500. They can even offer an identical fob that functions exactly like the original (and costs just less than the price).