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How to Repair Fiat 500 Keys There are a variety of reasons why your Fiat 500 key fob may cease to function. One of the most common is when the small “watch” battery inside dies. It's a 3.3-volt lithium CR2032 and you can find it at a price of less than $3. When you need a replacement key for an older Fiat model locksmith is the person to call. United Locksmith offers this service and comes with all the parts and tools required. Keys Fiat keys might appear simple, but inside is a chip that communicates with the immobiliser system of your car. If the chip isn't present, or not programmed correctly to the immobiliser, your vehicle will not be able to start. Luckily Car Keys Solutions are able to provide dealer-standard technology and equipment that will ensure your Fiat key can be repaired in the event that it has suffered damage or has been lost. A spare key can keep your vehicle running in case of an accident or lockout. We can provide you with a standard key or a remote fob. We use only the highest-quality blanks and provide rapid turnaround time to ensure you are back on the road in a hurry. Many people decide to go to Fiat Dealerships to obtain an updated key. We can offer the fastest and most affordable service. You can also avoid the towing charges of bringing your vehicle from and to the dealership as we can come to you. This can also decrease the time it takes to wait, which is usually up to 10 days. Remotes The remote controls for Fiat cars look like the keys themselves, with the exception that they feature an IR (infrared) LED on the other end. This LED sends an IR signal to the device which opens or starts the car when pressed. The signal is picked up by a microprocessor within the key, which transforms it to a code that is then sent to the device. This is referred to as “keyless entry”. The more recent your vehicle is, and the more likely you are to have a keyless system. The more advanced your vehicle is, the more features it will come with. This includes locking and unlocking your car with the a push of a button, opening the doors without touching the handle, and so much more. The key fob is equipped with an integrated circuit chip that communicates with the immobiliser system in the car. The system will determine whether the key is genuine by checking a specific sequence in the transponder. If the chip isn't present, or if it has not been programmed with the correct immobiliser system the vehicle won't start. A locksmith can repair the key fob in case it's damaged. They'll also need to program the new key to be synced with the car's immobiliser system. This is a crucial part of the process, and you should be prepared to provide details about your vehicle to the locksmith if they contact you. try this With a keyless entry on your Fiat 500 you can lock or unlock your car with just a touch of the button. This technology is becoming more popular in cars of all kinds and ages, and it adds convenience and safety to your car's use. If your remote keyless entry system stops working look to see whether the battery for the coin in the fob has gone dead. Replace the battery by using a newer one that has the same voltage size, type, and size as the original if it is drained. You should also make sure that the battery's contacts are free of dust or corrosion. The key fob is fitted with rubber seals that protect the electronic 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 off and let the battery dry completely before replacing it. You can also clean the electronic chip by using isopropyl, or electronic cleaner. Keyless entry systems are more secure than conventional systems because it rolls up the code used to unlock your vehicle after each use. This means that even if hackers do intercept the signal that they receive, they will not be able to gain permanent access to your vehicle. Transponders Fiat employs a crypto-key transponder system, which means that the keys/transponders need to be precoded by the Body Control Module before they are “programmed” in the BCM. A blank key that is not programmed can't be programmed as 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 for OE SIP22 Transponder keys for Fiat 500. They come with a chip that opens the door and begins the vehicle. They will need to be professionally cut by a locksmith to match your ignition.