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How to Repair Fiat 500 Keys There are a few reasons why your Fiat 500 key FOB may not function properly. The small “watch” inside the key FOB often dies. It's a 3.3 voltage lithium, CR2032, which can be purchased almost anyplace for less than $3. A locksmith is the best choice to call if require a new car key for an old Fiat model. United Locksmith can provide this service and has the tools and spare parts needed. Keys On the outside, a Fiat key may appear simple, however inside the casing is an electronic chip that communicates with your vehicle's immobiliser system. If the chip isn't present or programmed to the immobiliser system properly then your vehicle won't start. Fortunately, Car Keys Solutions are able to provide dealer-standard technology and equipment to ensure your Fiat key can be repaired the damage it sustained or has been lost. Having a spare key is the most efficient method to ensure your car is running in the event of a disaster or being locked out. We can supply you with a standard key or a remote fob. We only use the highest quality blanks and provide a quick turnaround so you can get back to driving in a short time. Some people choose to visit an Fiat Dealership to purchase new keys. We can offer the fastest and most affordable service. You'll also save the towing costs of getting your car from and to the dealership because we can come to you. This can also cut out the waiting period which is often up to 10 days for dealers. Remotes The remote controls on Fiat vehicles are like keys, however they have an IR LED (infrared). The LED transmits an electronic signal to the device, which opens or starts the vehicle when it is pressed. The microprocessor inside the key converts the signal into a code which is then sent to the device. This method is referred to as “keyless entry”. The more modern your car is, and the more likely it is that you have a keyless system. The more recent your car has, the more features you'll likely get with it. This includes everything from locking and unlocking the vehicle with a single press to unlocking the doors without having to actually hold the door handle and more. The key fob contains an integrated circuit chip that communicates with the immobiliser system in the car. The system can determine whether the key is working by checking a certain sequence within the transponder. If the chip is not present, or if it isn't programmed to the correct immobiliser system the vehicle won't begin. A locksmith can repair the key fob in case it's damaged. The locksmith will also need to program the new key to connect with the immobiliser system in the vehicle. You should be prepared to provide your locksmith's details about your vehicle when they call. Keyless Entry If you have a keyless entry system in your Fiat 500, you can secure and unlock the car from any location with the click of one button. This technology is becoming more common in cars of all ages and types as it provides convenience and safety to the use of your vehicle. If fiat ducato key fob isn't working, check to see whether the battery for the coin in the fob is dead. Replace the battery with a fresher one of the same voltage size, type and size as the original if it's depleted. You should also make sure that the contacts of the battery are free of corrosion or dust. The key fob is fitted with rubber seals to protect the chip inside from water, however, prolonged exposure to soapy or salty water may cause the chip to fail. If your key fob has been exposed to water, you must remove it and let the battery dry completely before replacing it. You can also try cleaning the electronic chip with isopropyl alcohol or electronic cleaner. Keyless entry systems are more secure than traditional systems, as it generates the code that is used to unlock your car after every use. This means that even if hackers intercept the signal that they receive, they will not be able to gain access to your vehicle. Transponders Fiat utilizes a crypto key transponder system which means the keys/transponders must be encoded with an encrypted code by the Body Control Module (BCM) before being “programmed” into the BCM. This is the reason why an unwritten key cannot be programmed as the BCM must read and write the secret key to the transponder, then lock it. This process is called the cloning. These are brand new replacement outer cases OE SIP22 Transponder keys for Fiat 500. They have a chip inside that opens the doors and starts the car. They must be professionally cut by a locksmith so that they fit your ignition.