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How to Repair Fiat 500 Keys There are many reasons why your Fiat 500 key fob may cease to function. One of the most common is when the small “watch” battery inside the device dies. This is an 3.3 voltage lithium, CR2032, that you can buy just about anywhere for under $3. When you need a new key for an older Fiat model locksmith is the one to call. United Locksmith offers this service, and has all the tools and parts needed. Keys Fiat keys might appear simple but inside is an electronic chip that communicates with the immobiliser system of your car. If the chip isn't present or programmed to the immobiliser system correctly then your vehicle won't start. Car Keys Solutions can offer you dealer-grade equipment and technology to repair your Fiat key, even if the key has been damaged or lost. A spare key can keep your vehicle running in case of an accident or lockout. We can supply you with a standard key or a remote fob. We only use the best blanks and provide a quick turnaround time so that you can be back to driving in a short time. Some people prefer to visit an Fiat Dealership when they require a new key, but we are able to provide a less expensive and faster service. Additionally, you will save the cost of towing your vehicle to and from the dealership as we can bring it to you. This will also cut down on the wait time which can range from a few days to 10 days. Remotes The remote controls on Fiat vehicles look similar to the keys themselves, with the exception that they have an IR (infrared) LED on the bottom. The LED transmits an electronic signal to the device that allows the vehicle to open or start when pressed. The microprocessor inside the key converts the signal into a code that is then sent to device. This process is called “keyless entry”. The more recent your car is, the more likely to feature a keyless entry system. The more advanced your car is, the more features it will come with. This includes everything from locking and unlocking your car with a press of a button, to opening the doors without having to hold the door handle and much more. The key fob is equipped with an integrated circuit chip that communicates with the immobiliser system of the car. The system determines whether the key is in fact correct by checking a specific sequence within the transponder. If the chip isn't present, or if it has not been programmed to the correct immobiliser, the vehicle will not start. If the fob for the key is damaged, a locksmith is able to create a replacement. The locksmith will also need to program the new key to link with the immobiliser system of your car. This is an essential part of the procedure, and you must be ready to provide information about your car to your locksmith when they call. Keyless Entry If you have a keyless entry system in your Fiat 500, you can secure and unlock the car at any time with the push of the button. Read A lot more is a growing feature in all types of cars which adds security and convenience to the operation of your vehicle. If your remote keyless entry system fails to work examine whether the battery for the coin in the fob is dead. Replace the battery with a newer one that has the same voltage size, type, and capacity as the original one if it is drained. You should also ensure that the battery's contact points are clean and free from corrosion or dust. The key fob is fitted with rubber seals that shield the electronic chip from water however, prolonged exposure to salty or soapy water can cause the chip to fail. If your key fob is exposed to water, remove the battery and allow it to dry completely before putting it back into. You can also try cleaning the electronic chip using isopropyl ethanol or electronic cleaner. Although some may think that keyless entry is less secure, this system is actually more secure than traditional systems due to the fact that the code used to unlock your car gets rolled up after each use. This means that even if hackers do intercept the signal it isn't possible for them to gain permanent access to your vehicle. Transponders Fiat uses a crypto key transponder system which means that the keys or transponders must be precoded in the Body Control Module before they are “programmed” in the BCM. This is why a blank unwritten key is not able to be programmed, as the BCM has to read & write its secret key to the transponder and then lock it. This is known as”cloning. These are brand new replacement outer cases that replace the SIP22 Transponder keys for Fiat 500. They have a chip inside that opens the doors and also starts the car. They must be professionally cut by a locksmith to match your ignition.