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How to Repair Fiat 500 Keys There are a few reasons why your Fiat 500 key FOB may stop working. One of the most frequent is that the tiny “watch” battery that's inside the device dies. It's a 3.3-volt lithium CR2032 and you can find it anywhere 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 has all the tools and parts required. Keys Fiat keys may appear simple, but inside is a chip that communicates with the immobiliser system of your vehicle. If the chip is not present, or not properly programmed to the immobiliser, your vehicle isn't able to start. Luckily Car Keys Solutions are able to offer standard technology and equipment that will ensure your Fiat key is repaired, even if it has suffered damage or has been lost. Having a spare key is the most efficient way to keep your vehicle running in the event of a disaster or being locked out. We can provide you with a standard key or a remote fob. We use the highest quality blanks we can find and provide an immediate turnaround time so that you can get back on the road as quickly as possible. Some people will choose to visit a Fiat Dealership if they require a replacement key, but we can provide a less expensive and faster service. You can also avoid the towing costs of getting your car from and to the dealership as we can come to you. This will also reduce the waiting period which can be as long as 10 days for dealers. Remotes The remote controls on Fiat vehicles are similar to keys, but they feature an IR LED (infrared). The LED transmits signals to the device that allows the car to open or stop when the button is pressed. The signal is detected by a microprocessor in the key, which converts it to a code that is then sent to the device. This method is referred to as “keyless entry”. The newer your vehicle is, the more likely it is to have a keyless entry system. The more modern your vehicle has, the more features you'll likely find in it. This includes everything from locking and unlocking your car with a button press to unlocking the doors without having to reach the door handle and many more. The key fob contains an integrated circuit chip that communicates with the immobiliser system in the car. The system will determine if the correct key is present by observing a certain sequence of digits within the transponder chip. The vehicle will not start in the event that the chip is not present or if it's not programmed to the correct immobiliser system. A locksmith can replace the key fob if it is damaged. replacement key fiat 500 'll also have to program the replacement key to connect with the vehicle's immobiliser. This is a crucial part of the procedure, and you should be prepared to give information about your vehicle to the locksmith when they call. Keyless Entry With a keyless entry feature on your Fiat 500 you can lock or unlock the vehicle by pressing a button. This technology is becoming more prevalent in cars of all types and ages and can add convenience and safety to the use of your vehicle. If your remote keyless entry system fails to work Check to see whether the battery for the coin in the fob has gone dead. If the battery has been drained replace it with a fresh one that is the same voltage, size, and type as the original. You should also ensure that the battery's contacts are free of corrosion or dust. The rubber seals on the key fob guard the electronic chip from water. However exposure to prolonged salty or soapy water can cause the chip to fail. If your key fob has been exposed to water, take it out and let the battery dry completely before replacing it. You can also clean the electronic chip using isopropyl, or electronic cleaner. Keyless entry systems are more secure than the traditional systems, as it generates the code used to unlock your vehicle after each use. This means that even if hackers are able to intercept the signal and attempt to access your car, they won't be able to gain access to your car. Transponders Fiat uses a crypto-key transponder system which means that keys or transponders must be precoded in the Body Control Module before they are “programmed” by the BCM. A blank key that has not been programmed can't be programmed because the BCM must read and write its secret key into the transponder before locking it. This is referred to as”cloning. These are brand new replacement outer case OE SIP22 transponder keys for your fiat 500. They have a chip inside that opens the doors and also starts the car. They must be cut professionally by a locksmith in order to fit your ignition.