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How to Repair Fiat 500 Keys There are many reasons why your Fiat 500 key FOB may stop working. The tiny “watch” inside the key FOB often dies. It's an 3.3-volt lithium CR2032, and you can get it for less than $3. A locksmith is the ideal option to contact if you require a replacement car key for the classic Fiat model. United Locksmith offers this service, and has all the tools and parts needed. Keys On the outside a Fiat key might appear basic however, inside the case is an electronic chip which communicates with the car's immobiliser system. If this chip is not present or programmed to the immobiliser system properly then your vehicle won't start. Fortunately Car Keys Solutions are able to offer standard technology and equipment to ensure your Fiat key can be repaired if it has suffered damage or has been lost. Having a spare key is the most efficient way to keep your car running in the event of a crisis or being locked out. We can provide you with a standard blank key or a remote fob. We use the best quality blanks and provide rapid turnaround time to ensure you can get back on the road quickly. Some people choose to visit Fiat Dealerships to obtain new keys. We can provide a quicker and cheaper service. Additionally, you will save the towing charges of bringing your car to and from the dealership as we are able to come to you. This can also decrease the waiting time, which is often up to 10 days for dealers. Remotes The remote controls of Fiat vehicles are similar to keys, but they are equipped with an IR LED (infrared). This LED transmits a signal to the device which opens or starts the car when you press. The signal is interpreted by a microprocessor within the key which converts it into a code that is then transmitted to the device. This is referred to as “keyless entry”. The more recent your vehicle is, the more likely you'll have keysless entry. The more recent your car, the more features you'll probably have with it. This includes locking and unlocking your car with the pushing a button, opening the doors without touching the handle, and much more. The key fob is fitted with an integrated circuit chip that communicates with the immobiliser system in the car. The system will determine if the key is correct by examining a specific sequence of the transponder. If the chip isn't there, or if it has not been programmed to the correct immobiliser system the vehicle won't start. If the fob for the key is damaged, a locksmith will make a replacement. The locksmith will also have to program the new key to sync up with the immobiliser of the car. This is an essential part of the procedure, and you should be ready to provide information about your vehicle to your locksmith when they call you. Keyless Entry With the keyless entry option on your Fiat 500 you can lock or unlock your car by pressing an button. This technology is becoming more common in cars of all types and ages and can add security and convenience to your car's use. Verify that your remote keyless entry system isn't working. The battery inside the fob could be dead. If the battery has been drained replace it with a new one with the same voltage, size, and type as the original. Also, ensure that the battery's contacts are free of dust or corrosion. The key fob has 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, remove and let the battery dry completely before replacing it. You can also clean the electronic chip using isopropyl or an electronic cleaner. read what he said is more secure than conventional systems because it generates the code used to unlock your vehicle after every use. This means that even if hackers attempt to intercept the signal, they won't be able to gain permanent access to your car. Transponders Fiat utilizes a crypto key transponder system which means the keys or transponders must be precoded with a secret code generated by the Body Control Module (BCM) before being “programmed” into the BCM. A key that is blank and has not been programmed can't be programmed because the BCM must read and write the secret key into the transponder before locking it. This process is referred to as”cloning. These are new replacement outer cases OE SIP22 Transponder keys for Fiat 500. They contain a chip that unlocks the door and opens the vehicle. Locksmiths will need to cut the chip to fit your ignition.