Fiat 500 Replacement Key Fob If your remote key fob isn't working, it may be time to replace the battery. However, if you replace the battery but it continues to stop working the issue is probably elsewhere. At United Locksmith, we specialize in making new keys for old automobiles. https://www.thekeylab.co.uk/fiat-car-keys/ have the tools and components needed for this service. Dead Coin Battery The most frequent reason why your Fiat 500 key fob will not unlock or lock the doors is a dead battery. The battery inside the key fob will deplete quickly when you don't use it often enough. If your remote starts to show signs of loss of range, or has stopped functioning or not responding, then the battery could be dead. Metal clips hold the battery in within the key fob. If the clips aren't tight, they can cause contact problems that will prevent your remote to receive power. Use a flathead screwdriver break open the retaining clip and remove the old battery. Choose a battery that is the same size, voltage and specification as the original. The exposure to water can cause the key fob to corrode or be damaged. Even a short shower in soapy water can harm the electronic chip in. It is best to keep your key fob in a dry area. Water Damage Water damage could be the cause of your key fob not working properly. Key fobs are fitted with rubber seals that protect them from being damaged by rain or a splash of water, but it is very important to keep your car keys out of the pool, ocean and washing machine! The key fob comes with an electronic chip inside that transmits a signal car's immobilizer system. This is what allows your 500 to start or lock, however in the event that the chip becomes wet, it's unable to longer function. If you're interested in checking if your key fob is functioning it is possible to clean the internal electronics using isopropyl or an electronic cleaner. However, it is probably better to purchase a new one from a dealer instead of trying to repair an item that has been submerged by salt water. A replacement fob might cost you some money however, it's cheaper than having to have your Fiat 500 towed to a dealership and fixed there! You can also fix it yourself with only a few steps. Be sure to have the correct battery type before attempting to open your keyfob. This is a job that's much simpler than it appears, and you can find step-bystep instructions on the internet for nearly any key fob in your car. Faulty Chip The chip inside the key fob communicates with the immobiliser on your vehicle to ensure that the vehicle will only start when correct keys are inserted. If the chip is damaged or damaged the car will not start regardless of what you do. A faulty chip can occur due to a variety of reasons but most commonly due to water damage or an unresponsive battery. Regardless of the reason, it is a good idea to leave this task to a locksmith since they can replace the chip for you quickly and at a reasonable cost. If your key fob stops working after exposure to clean water from the tap or rain, take off the battery and wipe down the electronic component with a tissue to ensure it's dry before putting it back in. If the key fob still doesn't work it's probably an issue with the chip and is required to be replaced. Some people will go to their dealer in order to get an entirely new Fiat fob. However, this could be a costly option. If you're looking for a cost-effective way to get your Fiat key fob fixed Look no further than United Locksmith. We have the tools and expertise necessary to fix your Fiat key fob in a quick and professional manner. Faulty Receiver Module Fiat key fobs send an electronic signal to the vehicle that can unlock and lock doors (and start the car for those with an automatic transmission) up to 50 feet. There are several reasons why a fob could stop working. This could be due to a dead battery water damage, worn-out buttons, a receiver issue, signal interference, or malfunctioning chips. If the fob was stored in a place that has experienced extreme trauma, like being dropped on hard floors or getting washed in the washing machine and it isn't capable of communicating with the car's Body Control Module (BCM). The BCM is a security device which will only accept signals from genuine original keys. If this is the case, then you must replace your fob. A professional locksmith can handle the entire process of replacing keys including programming a brand new key for your 500. In fact, they could provide you with a replica key that functions the same way as your original fob (and costs less than the price).