Fiat 500 Replacement Key Fob If your remote key fob has stopped working, it may be time to replace the battery. However, if you replace the battery but it does not work it is probably elsewhere. United Locksmith specializes in the production of new keys for classic vehicles. We have the tools as well as the parts needed for this service. Dead Coin Battery The most common reason why your Fiat 500 key fob will not lock or unlock the doors is due to a dead battery. The key fob is equipped with an internal battery called a coin cell that will drain quickly when it isn't being frequently used. If your remote began to show signs of weakening such as a loss in range and then completely stopped working the battery could be dead. Metal clips hold the battery in place on the key fob. If the clips aren't tightly secured, they could result in problems with contact that can prevent the remote from receiving power. Using a small flathead screwdriver, pull the retaining clip outwards to remove the battery and insert a new one. Choose a battery that is the same voltage, size and specification as the original. The key fob can also become corroded or damaged by exposure to water. Even a brief bath in soapy, warm water can cause damage to the chip. Keep your key fob dry. Water Damage If your key fob isn't operating properly, it could be caused by water damage. The rubber seals on key fobs keep them from being damaged by a slight splash or drizzle of water. However, it is important to keep the keys of your car away from the washing machine, the ocean, and even the pool. The key fob contains an electronic chip inside it that sends a signal to your car's immobilizer system. This is what allows your 500 to start or lock, however when the chip becomes saturated, it won't be able to longer function. You can clean the inside electronics of your keyfob with isopropyl alcohol or an electronic cleaner to determine whether they're still working. However, it's recommended to purchase a replacement from a dealer rather than trying to repair a key fob that has been submerged in salt water. While a replacement fob could cost a bit of money, it's a lot cheaper than paying for your Fiat 500 to be towed to a dealership and fixed! You can also fix it yourself by following just a few steps. Just make sure you have the correct battery type before you attempt to open your key fob. https://www.thekeylab.co.uk/fiat-car-keys/ can find step-bystep instructions for any car keyfob on the internet. Faulty Chip The chip inside the key fob communicates 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 corrupted the car won't start no matter what you do. Water damage or a dead cell battery are the most frequently cited reasons for a faulty chip. Whatever the reason, it is best to delegate this task to a locksmith who will be able to replace the chip fast and at an affordable price. If your key fob will not function after being exposed to clean rain or tap water take the battery off. Clean the electronic component with a towel. If the key fob does not work, there's the possibility that it has damaged components and requires to be replaced. Some people will turn to their dealer when in need of an entirely new Fiat key fob, however it can be a costly option. If you're seeking a cost-effective solution to get your Fiat key fob repaired Look no further than United Locksmith. We have the tools and experience needed to repair your Fiat fob in a timely and professional manner. Faulty Receiver Module Fiat key fobs send a signal up to 50 feet to the vehicle, which will unlock and lock the doors (and start the vehicle if it has automatic transmissions). There are a variety of reasons why the fob might stop working. This includes a dead battery, water damage, worn-out buttons, a receiver issue, signal interference or a malfunctioning chip. If the fob is in the pocket that has been subject to severe trauma (such as being dropped onto the hard floor or washed in a washing machine) the fob may not be able to communicate with the Body Control Module (BCM) of the vehicle. The BCM is a security device that only accepts signals from genuine keys. If this is the case, you have to replace your fob. A professional locksmith will manage the entire process of replacing keys including programming a brand new key for your 500. They can even provide the fob cloned to work just like the original (and costs a fraction of the price).