Fiat 500 Replacement Key Fob If your 500 remote key fob has stopped functioning, it could be time to replace the battery. If you replace the battery but it isn't working the issue could be elsewhere. United Locksmith specializes in the production of new keys for classic automobiles. We have all the tools and accessories needed for this service. Dead Coin Battery The most common reason your Fiat 500 key fob will not lock or unlock the doors is a dead battery. The battery of the coin cell inside the key fob will deplete quickly when you don't utilize it often enough. If your remote starts to show signs of loss of range, or has stopped functioning, then the battery may be dead. The battery in the key fob is held in place by metal clips that retain it. If the clips aren't tight enough, it could lead to contact issues that will stop your remote from receiving power. By using a small flathead screwdriver, break the retaining clip outwards to remove the battery and then insert a fresh one. Make sure to select a replacement with the same type of voltage, size, and specification as the original battery. The key fob could be damaged or corroded by water exposure. Even a brief bath in warm, soapy water could damage the chip. Make sure your key fob is dry. Water Damage Damage to your water supply could be the reason behind your key fob not working properly. The rubber seals on key fobs prevent them from being damaged by a slight drizzle or splash of water. However, it's crucial to keep the car keys away from the washing machine, the ocean and even the pool. The key fob has an electronic chip that sends a message to the immobilizer system in your car. This is what allows your 500 to lock or start, but if the chip gets saturated, it won't be able to longer work. If you're trying to determine if your key fob is functional, you can clean the internal electronics using isopropyl or an electronic cleaner. However, it is probably better to purchase a new one from a dealership instead of trying to repair an item that has been submerged in salt water. While a replacement fob might cost you a little bit of money, it is far less expensive than paying for your Fiat 500 to be towed to the dealer for repair! You can also do it yourself with a few simple steps. Just make sure you have the correct type of battery before you attempt to open your key fob. This is a job that's much easier than it looks and you can find step-by-step directions on the internet for nearly any car key fob. Faulty Chip The chip inside the key fob communicates with the immobiliser on your car to ensure that the vehicle will start only when the proper keys are inserted. If the chip is damaged or destroyed the car won't start regardless of what you do. A faulty chip can occur due to a variety of reasons, but the most common cause is water damage or the battery being dead. It is recommended to leave the work to a professional locksmith who will be able to replace the chip in a short time and at a an affordable cost. If your key fob will not work after exposure to clean water from a tap or rain take the battery off. Wipe down the electronic component with a paper towel. If the key fob will not work, there is the possibility that it has an issue with the component and requires to be replaced. Some people will go to their dealer if they need an entirely new Fiat fob. However, this can be expensive. United Locksmith is the best option for you if need your Fiat keyfob fixed at a reasonable price. We have the tools and experience needed to repair your Fiat key fob in a quick and professional way. Faulty Receiver Module Fiat key fobs transmit an alert up 50 feet away to the vehicle, which can unlock and close the doors (and start the vehicle if it has automatic transmissions). There are a variety of reasons why a fob could stop working. This includes a dead coin-battery water damage, worn out buttons, a receiver issue, signal interference or a malfunctioning chip. If the fob has been in a pocket which has endured extreme trauma, such as being dropped on hard floor or being washed in a washer or dishwasher, it might not be capable of communicating with the car's Body Control Module (BCM). This is because the BCM is secured and will only accept a signal from a genuine original key and not any other. If this is the case, you must replace your fob. A locksmith professional can handle all aspects of the key replacement process, including programming a new one for the 500. They can even provide you with a clone fob that works exactly the same way as the original (and costs less than what it would cost).