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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 problem may be somewhere else. At United Locksmith, we specialize in making new keys for old cars. We have all the tools and accessories needed to provide this service. Dead Coin Battery A dead battery is the primary cause of your Fiat 500 keyfob not locking or unlocking the doors. The battery inside the key fob will drain quickly when you don't utilize frequently enough. If your remote began to show signs of weakening like a loss of range and then completely stopped working The battery is probably dead. Metal clips hold the battery securely on the key fob. If the clips aren't tight, they can cause problems with the contact, which can stop your remote to receive power. With a small flathead screwdriver, pry the retaining clip to remove the current battery, and replace it with a brand 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 water exposure. Even a quick bath in soapy water could harm the electronic chip within. It is best to keep your key fob in a dry area. Water Damage Damage to your water supply could be the reason for your key fob not functioning properly. Key fobs have rubber seals that protect them from being damaged by a light rain or a splash of water. However, it is essential to keep your keys safe from the pool, ocean and the washing machine! The key fob is equipped with an electronic chip which sends an alert to the immobilizer system of your car. The chip allows the 500 to lock and start. If it gets wet it will cease to work. If you're trying to determine if your key fob is still functioning, you can clean the internal electronics with isopropyl or electronic cleaner. It is best to replace the key fob if it is submerged in salt water instead of trying to fix it yourself. While a replacement fob could cost you a bit of money, it's much cheaper than paying for your Fiat 500 to be towed to the dealer for repair! You could also do it yourself by following just a few 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 far simpler than it appears, and you can find step-bystep instructions on the internet for nearly any car key fob. Faulty Chip The chip located within the key fob communicates with the vehicle's immobiliser to ensure that the vehicle is able to start when the correct key is used. If the chip is damaged or destroyed the car will not start regardless of what you do. A damaged chip could occur due to a variety of reasons but the most common cause is water damage or a dead battery. Regardless of the reason, it is best to delegate the job to a locksmith who will be able to replace the chip for you swiftly and at a low cost. If your key fob does not function after exposure to clean rain or tap water take it off the battery. Wipe down the electronic component with a towel. If the key fob isn't working it's probably a fried chip and will need to be replaced. Some people will go to their dealer in order to get a new Fiat fob. However, this can be expensive. United Locksmith is the best place to go if you would like to have your Fiat key fob repaired at a reasonable price. We have the tools and knowledge needed to repair your Fiat key fob in a quick and professional manner. Faulty Receiver Module Fiat key fobs transmit an electrical signal to the vehicle, which will unlock and close doors (and start the car if it has an automatic transmission) up to 50 feet. There are a few reasons why the fob could not function. replacement key for fiat 500 The Keylab include a dead coin battery water damage or worn buttons, a receiver module issue, and signal interference or an electronic chip that has failed. If the fob was in the pocket of someone who has suffered severe trauma (such as being dropped onto the floor, or washed in the washer) the fob may not be able to communicate with the Body Control Module (BCM) of the car. The BCM is a security device which will only accept signals from genuine keys. If this is the case, then you will need to replace your fob. A professional locksmith can handle the entire replacement process including programming a new key to your 500. In fact, they'll provide you with a replica key that works just the same as the original fob (and costs less than the price).