Fiat 500 Replacement Key Fob It's possible to replace the battery if your 500 remote key fob isn't working. If you replace the battery, but it's still not working, the problem may be elsewhere. United Locksmith specializes in the creation of new keys for classic vehicles. We have all the tools and components needed for this type of service. Dead Coin Battery The most common reason your Fiat 500 key fob will not lock or unlock the doors is due to a dead battery. The battery of the coin cell inside the key fob will deplete quickly when you don't utilize it often enough. If your remote starts to show signs of loss of range or stopped functioning and the battery is not working, it could be dead. Metal clips hold the battery in place inside the key fob. If the clips aren't tight, they can cause contact issues that prevent the remote from receiving power. With a small flathead screwdriver, break the clip that holds the retaining pin open to take out the battery and then insert a fresh one. Be sure to choose a replacement battery with the same type of voltage, size, and specification as the original battery. The key fob could also be damaged or corroded by water exposure. Even https://www.thekeylab.co.uk/fiat-car-keys/ in warm, soapy water could cause damage to the chip. Make sure your key fob is dry. Water Damage Water damage may be the reason for your key fob not functioning properly. The rubber seals on key fobs protect them from being damaged by a small splash or drizzle of water. However, it is crucial to keep your keys from the washing machine, ocean, and the pool. The key fob comes with an electronic chip in it that sends a signal to your car's immobilizer system. The chip allows the 500 to start and lock. If it gets wet, however, it will no longer work. Try cleaning the inside of your key fob's electronics with isopropyl Alcohol or an electronic cleaner to determine if they are still good. It is recommended to replace a key fob if it is submerged in salt water rather than attempting to fix it yourself. While a replacement fob could cost you a little bit of money, it is much less expensive than paying for your Fiat 500 to be towed to the dealer and repaired! You can also do it yourself by following a few simple steps. Be sure to use the correct battery type before you attempt to open your key fob. There are step-by-step directions for any key fob in your car online. Faulty Chip The chip in the key fob is in direct communication with the immobiliser on your car to ensure that the vehicle will only start when the correct keys are used. If the chip is damaged, or corrupted in any way, your car will not start. Damage to the water or a dead battery are the two most common reasons for defective chips. It is best to leave the job to a professional locksmith who will be able to replace the chip in a short time and at a a reasonable price. If your key fob will not function after being exposed to clean water from a tap or rain take it off the battery. Clean the electronic component using a paper towel. If the key fob does not function, there's the possibility that it has damaged components and requires to be replaced. Some people will go to their dealer if they need a new Fiat fob. However, this could be expensive. United Locksmith is the best choice if you want your Fiat key fob repaired at a reasonable cost. We have the tools and experience needed to repair your Fiat key fob in a timely and professional manner. Faulty Receiver Module Fiat key fobs send a signal to the vehicle, which will unlock and lock doors (and start the car for vehicles with an automatic transmission) up to 50 feet. However, there are a few factors that can cause the fob to cease functioning. This includes a dead coin battery damaged by water or worn buttons and a receiver module issue or signal interference, or an electronic chip that has failed. If the fob is in a pocket which has suffered extreme trauma (such as being dropped on a hard floor or being washed in the washer) the fob may not be in a position to communicate with the Body Control Module (BCM) of the vehicle. The BCM is a security device that will only accept signals from genuine original keys. You will need to replace the fob in case this occurs. A professional locksmith will handle the entire key replacement process including programming a brand new key for your 500. In fact, they'll offer you a clone key that works just the same way as the original fob (and costs only a fraction of the price).