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How to Repair Fiat 500 Keys There are many reasons your Fiat 500 key FOB may stop working. The small “watch” inside the key FOB is often dead. It's an 3.3 voltage lithium, CR2032, that can be purchased almost anywhere for under $3. A locksmith is the best option to contact if you need a new car key for a classic Fiat model. United Locksmith can provide this service and also has the tools and spare parts needed. Keys On the outside, a Fiat key may appear to be basic however inside the casing is a chip that connects to your car's immobiliser system. If the chip isn't in place or programmed to the immobiliser system properly your car won't start. Car Keys Solutions can offer you the latest technology and equipment from dealers to repair your Fiat key, even if the key is damaged or lost. fiat key fob replacement can keep your vehicle in case of an accident or lockout. If you require a standard blank or a remote fob we can help. We only use the top blanks and offer a fast turnaround time so that you can be back to driving quickly. Some people prefer to go to a Fiat Dealership if they require a new key, but we can offer a lower cost and faster service. We can even come to you to save you the expense of towing your car to the dealer. This can also cut out the waiting period which is often up to 10 days for dealers. Remotes The remote controls of Fiat vehicles are like keys, however they come with an IR LED (infrared). This LED sends an electronic signal to the device that opens or starts the vehicle when pressed. The microprocessor inside the key transforms the signal into a code that is then sent to the device. This is also known as “keyless entry”. The more modern your car is, the more likely you'll have the keyless system. The more modern your car is equipped with, the more features it will likely have. This includes everything from locking and unlocking your car with a button press to opening the doors without having to reach the door handle and more. The key fob is equipped with an integrated circuit chip which communicates with the immobiliser system of the car. The system can determine whether the correct key is present by looking for a specific sequence of numbers in the transponder chip. The vehicle won't start in the event of a chip being missing or isn't programmed to the right immobiliser system. If the key fob has been damaged, a locksmith will create a new one. They'll also need to program the new key to be synced with the car's immobiliser system. This is an important part of the procedure, and you should be prepared to give information regarding your vehicle to your locksmith when they call you. Keyless Entry With a keyless entry on your Fiat 500 you can lock or unlock the car by pressing an button. This technology is increasingly common in all kinds of vehicles which adds security and convenience to the usage of your vehicle. Check to see if the remote keyless entry system is not working. The battery inside the fob could be depleted. Replace the battery with a fresher one of the same voltage size, type, and size as the original one if it's depleted. You should also ensure that the battery's contacts are clean and free from dust or corrosion. The key fob is fitted with rubber seals that protect the chip from water, however, prolonged exposure to soapy or salty water can cause the chip to fail. If your key fob has been exposed to water, take it out and allow the battery to dry completely before replacing it. You can also try cleaning the electronic chip with isopropyl alcohol, or an electronic cleaner. Keyless entry systems are more secure than the traditional systems, as it rolls up the code used to unlock your vehicle after every use. This means that even if hackers intercept the signal it isn't possible for them to gain access to your car. Transponders Fiat uses a crypto key transponder system which means that keys/transponders need to be precoded by the Body Control Module before they are “programmed” in the BCM. A blank key that has not been programmed can't be programmed because the BCM must read and write the secret code onto the transponder before locking it. This is known as the cloning. These are new replacement outer cases to replace SIP22 Transponder keys for Fiat 500. They contain a chip that opens the doors and starts the car. They will need to be cut professionally by a locksmith to fit your ignition.