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How to Repair Fiat 500 Keys There are several reasons why your Fiat 500 key fob may stop working. One of the most common is the tiny “watch” battery inside it dies. It's an 3.3-volt lithium CR2032 You can buy it anywhere for less than $3. When you need keys to replace an older Fiat model locksmith is the person to call. United Locksmith can provide this service and can provide the tools and replacement parts needed. Keys Fiat keys may look simple however inside is a chip that is communicating with the immobiliser system of your car. If the chip isn't present, or not properly programmed to the immobiliser, your vehicle will not be able to start. Luckily Car Keys Solutions are able to provide dealer-standard technology and equipment to ensure that your Fiat key can be repaired, even if it has suffered damage or is lost. A spare key can keep your vehicle running in the event of an accident or lockout. It doesn't matter if you require a standard blank or a remote fob, we are able to assist. We only use the highest quality blanks, and we offer a rapid turnaround so you can get back on the road in no time. Many people decide to go to a Fiat Dealership to get new keys. We can provide the fastest and most affordable service. You can also avoid the cost of towing your vehicle to and from the dealership as we are able to 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 automobiles look a lot like the keys, but they have an IR (infrared) LED on the bottom. The LED transmits an electronic signal to the device that can open or shut down the vehicle when it is pressed. The signal is received by a microprocessor within the key that 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, and the more likely you will have the keyless system. The more advanced your car has, the more features it will have. This includes locking and unlocking your car with the a push of a button and opening the doors with out touching the handle, and much more. The key fob is outfitted with an integrated circuit chip that communicates with the immobiliser system of the car. The system will determine whether the correct key is in place by looking for a particular sequence of digits in the transponder chip. If the chip is not present, or is not programmed to the correct immobiliser system, then the vehicle will not begin. A locksmith can replace the key fob in case it's damaged. The locksmith will also need to program the new key to sync with the immobiliser of the car. The Keylab must be prepared to provide your locksmith with information regarding your vehicle whenever they call. Keyless Entry If you have an entry system that is keyless on your Fiat 500, you can lock and unlock the vehicle at any time with the push of a button. This technology is becoming increasingly popular across all cars that adds security and convenience to the operation of your car. 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 with a fresher one that has the same voltage, type, and size as the original if it's depleted. You should also ensure that the battery's contacts are clean and free from dust or corrosion. The key fob comes with rubber seals that protect the chip inside from water, however, prolonged exposure to soapy or salty water could cause the chip to fail. If your key fob has been exposed to water, you must remove it and let the battery dry completely before replacing it. You can also clean the electronic chip using isopropyl or an electronic cleaner. The keyless entry system is more secure than the traditional systems, because it generates the code used to unlock your car after each use. This means that even if hackers 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/transponders must be precoded by the Body Control Module before they are “programmed” in the BCM. A key that is blank and has not been programmed cannot be programmed since the BCM must read and write the secret key to the transponder before locking it. This is referred to as the process of cloning. These are brand new replacement outer case SIP22 transponder keys for your 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 match your ignition.