Fiat 500 Replacement Key Fob It could be time to replace the battery if your 500 remote key fob isn't working. If you replace the battery but it isn't working it could be a problem elsewhere. United Locksmith specializes in the production of new keys for classic cars. We have the tools and parts required 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 for the coin cell in the key fob will deplete quickly when you don't use frequently enough. If your remote has started to show signs of loss of range, or has stopped functioning, then the battery may be dead. Metal clips keep the battery in in the key fob. If the clips aren't tight, they can create problems with the contact, which can stop your remote from receiving power. Use a flathead screwdriver to remove the retaining clip and remove the old battery. Choose a battery that is the same voltage, size, and specifications as the original. The key fob can also become corroded or damaged through exposure to water. Even a brief shower in soapy water can damage the electronic chip inside. Keep your key fob dry. Water Damage Water damage could be the reason for your key fob's inability to function properly. The rubber seals on key fobs protect them from being damaged by a light drizzle or splash of water. However, it's important to keep the keys of your car away from the washing machine, the ocean and even the pool. The key fob has an electronic chip that transmits a message to the immobilizer system of your car. The chip is what allows the 500 to lock and start. If it gets wet, however it will not work. If you're interested in checking if your key fob is functional you can clean the internal electronics using isopropyl or an electronic cleaner. It is best to replace a key fob in the event that it's submerged into salt water, rather than trying to fix it yourself. While https://www.thekeylab.co.uk/fiat-car-keys/ could cost a bit of money, it's far less expensive than paying for your Fiat 500 to be towed to the dealer and repaired! You could also do it yourself by following only a few steps. Be sure to have the correct battery type prior to opening your key fob. You can find step-by-step instructions for any car keyfob online. Faulty Chip The chip in the key fob communicates with your car's immobiliser unit to make sure the vehicle is only capable of starting when the correct key is used. If the chip is damaged, or damaged in any way, your car will not start. Damage to the water or a dead cell battery are the two most common causes of an unreliable chip. Whatever the reason, it is an ideal idea to hand the job to a locksmith since they will be able to replace the chip for you quickly and at a reasonable cost. If your key fob does not function after being exposed to clean tap or rain water take it off the battery. Clean the electronic component using a towel. If the key fob does not work it's probably to be a damaged chip and will require replacement. Some people will go to their dealer when they are in need of an entirely new Fiat key fob, however this could be a costly option. If you're seeking a cost-effective method to have your Fiat key fob repaired make sure you contact United Locksmith. We have all the tools and knowledge required to repair your Fiat fob in a timely and professional way. Faulty Receiver Module Fiat key fobs transmit a signal to the vehicle, which will unlock and lock doors (and start the vehicle for those with an automatic transmission) up to 50 feet. However, there are several things that can cause the fob to cease functioning. These include a dead coin battery or water damage, worn buttons, a receiver module issue or signal interference, or an electronic chip malfunctioning. If the fob was located in an area that has experienced severe trauma (such as being dropped onto a hard floor or being washed in the washing machine) the fob may not be in a position to communicate with the Body Control Module (BCM) of the car. The BCM is a security device that will only accept signals from genuine keys. You'll have to replace the fob in case this occurs. A professional locksmith can handle the entire key replacement process including programming a brand new key for your 500. They can even offer an identical fob that functions the same as the original (and costs just a fraction of the cost).