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How to Repair Fiat 500 Keys There are a variety of reasons why your Fiat 500 key fob may stop working. One of the most frequent is the small “watch” battery inside it dies. This is a 3.3 Volt lithium, CR2032, which you can purchase almost anyplace for less than $3. When you need the replacement key for an older Fiat model locksmith is the one to call. United Locksmith can provide this service and has the tools and replacement parts required. Keys Fiat keys may look simple, but inside is an electronic chip that connects to the immobiliser system of your car. If the chip isn't present or programmed to the immobiliser system properly the car will not start. Luckily, Car Keys Solutions are able to offer dealer-standard technology and equipment that will ensure your Fiat key is repaired, even if it has suffered damage or has been lost. A spare key will keep your vehicle running in the event of an accident or lockout. If you require a standard blank or remote fob, we are able to assist. new key for fiat 500 use the top blanks and provide a quick turnaround time so that you can be back to driving in a short time. Some people choose to visit Fiat Dealerships to obtain new keys. We can offer the fastest and most affordable service. You will also save on the towing costs of getting your car to and from the dealership as we can deliver the key to you. This can also cut down on the waiting time, which can take up to 10 days at a dealer. Remotes The remote controls of Fiat vehicles are similar to keys, but they have an IR LED (infrared). The LED transmits an indication to the device that opens or starts the car when the button is pressed. The microprocessor inside the key transforms the signal into a code which is then sent to device. This process is called “keyless entry”. The newer your vehicle is and the more likely to include a keyless entry system. The more advanced your car has, the more features will have. This includes locking and unlocking your car with just pressing a button or opening the doors without touching the handle, and so much more. The key fob contains an integrated circuit chip that connects to the car's immobiliser system. The system will determine whether the correct key is present by observing a certain sequence of digits within the transponder chip. The vehicle won't start in the event that the chip is not present or when it's not programmed with the right immobiliser system. When the key fob is damaged, a locksmith can create a new one. The locksmith will also have to program the new key to sync up with the immobiliser system in the vehicle. You must be prepared to give your locksmith information regarding your vehicle when they call. Keyless Entry With a keyless entry feature on your Fiat 500 you can lock or unlock the car with the touch of the button. This is a growing feature in all kinds of vehicles which adds convenience and security to the use of your vehicle. Examine your remote keyless entry system is not working. The battery in the fob may be dead. If the battery has been drained replace it with a fresh one that is of the same voltage, size and type as the original. You should also ensure that the battery's contacts are free of dust or corrosion. The key fob has rubber seals that protect the electronic chip from water however, prolonged exposure to salty or soapy water may cause the chip to fail. If your key fob is exposed to water, take out the battery and allow it to dry completely before putting it back into. You can also clean the electronic chip with isopropyl and electronic cleaner. Keyless entry systems are more secure than the traditional systems, because it rolls up the code that is used to unlock your vehicle after each use. This means that even if hackers intercept the signal, they won't be able to gain permanent access to your vehicle. Transponders Fiat uses a crypto keys transponder system. This means that the keys and transponders have to be precoded with an encrypted code by the Body Control Module (BCM) before being “programmed” into the BCM. This is why a blank unwritten key is not able to be programmed as the BCM must read and write the secret code to the transponder & lock it. This is referred to as the process of cloning. These are new replacement outer cases for OE SIP22 Transponder keys for Fiat 500. They come with a chip that allows you to open the doors and start the car. They will need to be cut professionally by a locksmith to match your ignition.