Fiat 500 Replacement Key Fob It's possible to change the battery if the 500 remote key fob isn't working. However, if you replace the battery and it continues to stop working, then the problem could be elsewhere. At United Locksmith, we specialize in the creation of new keys for old automobiles. We have the tools and spare parts needed for this job. Dead Coin Battery A dead battery is the most common reason for your Fiat 500 keyfob not locking or unlocking the doors. The battery of the coin cell inside the key fob is likely to drain quickly when you don't utilize frequently enough. If your remote started to show signs of weakening like a loss of range and stopped working completely it is likely that the battery is dead. The battery inside the key fob is secured by metal retaining clips. If the clips are loose, they can cause contact issues, which could prevent the remote from receiving power. Utilizing a small screwdriver, push the retaining clip open to remove the current battery and then insert a fresh one. Make sure to use a battery with the same size, voltage and specifications as the original. The key fob might be damaged or corroded by exposure to water. Even a brief bath in soapy water can harm the electronic chip in. It is best to keep your key fob in a dry environment. Water Damage Damage to your water supply could be the reason behind your key fob not functioning properly. Key fobs have rubber seals that prevent them from being damaged by light rain or splashes of water. However, it is essential to keep your keys away from the ocean, pool, and the washing machine! The key fob comes with an electronic chip in it that transmits a signal to your car's immobilizer system. This is what allows your 500 to start or lock, however when the chip becomes wet, it's unable to longer function. You can try cleaning your key fob's internal electronics with isopropyl Alcohol or an electronic cleaner to see whether they're still functioning. It is best to replace a key fob if it has been submerged into salt water, rather than trying to repair it yourself. A replacement fob can cost you a bit but it's far less expensive than paying to have your Fiat 500 towed to a dealership and fixed there! You can also do it yourself with only a few steps. Make sure you have the correct battery type before attempting to open your key fob. You can find step-by-step instructions for any car keyfob online. Faulty Chip The chip inside the key fob is in direct communication with the immobiliser of your car to ensure that your vehicle will only start once the proper keys are inserted. If the chip is damaged or destroyed the car won't start, no matter what you do. A chip that is defective can happen due to a variety of reasons but the most common cause is water damage or the battery being dead. Regardless of the reason, it is an ideal idea to hand this task to a locksmith since they will be able to replace the chip for you swiftly and at a low cost. If your key fob does not function after being exposed to clean tap or rain water, remove the battery. Wipe down the electronic component using a towel. If the key fob still isn't working, it is likely to be a damaged chip that will need to be replaced. Some people will visit their dealer when they require an entirely new Fiat fob. However, this can be a costly option. If you are seeking a cost-effective solution to have your Fiat key fob fixed make sure you contact United Locksmith. We have all the equipment and know-how to fix your Fiat fob in a timely and professional way. Faulty Receiver Module Fiat key fobs transmit an electrical signal to the vehicle, which will unlock and lock doors (and start the car if it has an automatic transmission) up to 50 feet. However, there are some things that could cause the fob to cease functioning. This can be caused by a dead coin-battery or water damage, worn out buttons, a receiver issue, signal interference or malfunctioning chips. If the fob is in a pocket which has suffered a severe trauma, like being dropped on hard floors or being washed in the washing machine or dishwasher, it might not be able to communicate with the car's Body Control Module (BCM). The BCM is a security device that will only accept signals from genuine original keys. https://www.thekeylab.co.uk/fiat-car-keys/ 'll have to replace the fob if this happens. A professional locksmith will handle the entire process of replacing your key including programming a brand new key for your 500. They can even give you a clone fob that works the same as the original (and costs less than what it would cost).