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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 that the tiny “watch” battery inside the device dies. This is a 3.3 Volt lithium, CR2032, is available anyplace for less than $3. A locksmith is the ideal choice to call if require a replacement car key for an old Fiat model. United Locksmith offers this service and comes with all the tools and spare parts needed. Keys Fiat keys may appear simple but inside is a chip that is communicating with the immobiliser system in your vehicle. If the chip isn't in place or programmed to the immobiliser system correctly then your vehicle will not start. Luckily Car Keys Solutions are able to provide standard dealer technology and equipment to ensure that your Fiat key can be repaired, even if it has suffered damage or is lost. The possession of a spare key is the most efficient method to keep your car running in the event of a crisis or being locked out. Whether you need a standard blank or remote fob we can help. We only use the best blanks and offer a fast turnaround time so that you can be back on the road in no time. Some people will choose to visit Fiat Dealerships when they require a new key, but we can offer you a cheaper and faster service. Additionally, you will save the towing costs of getting your vehicle from and to the dealership, as we can come to you. This can also cut down on the waiting time, which can be as long as 10 days for dealers. Remotes The remote controls for Fiat automobiles look a lot like the keys, but they feature an IR (infrared) LED on the top. The LED transmits an electronic signal to the device, which opens or starts the vehicle when the button is pressed. The microprocessor in a key converts the signal into a code that is then sent to device. This process is called “keyless entry”. The more modern your car is, and the more likely you are to have an electronic keypad. The more advanced your car, the more features it will come with. This includes everything from locking and unlocking your car with a button press, to opening the doors without having to actually touch the door handle and much more. The key fob contains an integrated circuit chip that connects to the vehicle's immobiliser system. The system determines whether the key is working by checking a certain sequence of the transponder. The vehicle won't start if the chip is missing or when it's not programmed with the right immobiliser system. When the key fob is damaged, a locksmith may make a replacement. The locksmith will also need to program the new key to connect with the immobiliser system of your car. It is important to provide your locksmith details about your car when they call. Keyless Entry If you have a keyless entry system on your Fiat 500, you can lock and unlock the car from any location with the click of the button. This technology is becoming more prevalent in vehicles of all kinds and ages and can add convenience and security to your vehicle's use. If your remote keyless entry system ceases to function, check to see if the coin battery in the fob is dead. If the battery is drained, replace it with a fresh one that is of the same voltage, size, and type as the original. You should also ensure that the contacts of the battery are free of corrosion or dust. The rubber seals on the key fob guard the chip from water. However prolonged exposure to soapy water 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 component using isopropyl or electronic cleaner. The keyless entry system is more secure than the traditional systems, since it generates the code used to unlock your car after every use. This means that even if hackers do intercept the signal, they won't be able to gain access to your vehicle. Transponders Fiat employs a crypto-key transponder system, which means that the keys and transponders have to be precoded with a secret code that is generated by the Body Control Module (BCM) before being “programmed” into the BCM. This is the reason a blank unwritten key cannot be programmed as the BCM must read and write its secret key to the transponder, then lock it. This is known as”cloning. These are new replacement outer cases that replace the SIP22 Transponder keys for Fiat 500. fiat 500 key button replacement come with a chip that opens the door and then starts the vehicle. Locksmiths need to cut them to fit the ignition.