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How to Repair Fiat 500 Keys There are a few reasons why your Fiat 500 key FOB may stop working. The small “watch” inside the key FOB can fail. It's a 3.3-volt lithium CR2032 and you can purchase it at a price of less than $3. When you need keys to replace an older Fiat model locksmith is the right person to contact. United Locksmith offers this service and comes with all the tools and spare parts needed. Keys On the outside, a Fiat key might appear basic however, inside the casing is an electronic chip that communicates with your vehicle's immobiliser system. If the chip isn't in place or programmed to the immobiliser system properly then your vehicle will not start. Luckily, Car Keys Solutions are able to provide dealer-standard technology and equipment to ensure your Fiat key is repaired, even in the event that it has suffered damage or is lost. A spare key is the best method to keep your car running in the event of a catastrophe or being locked out. We can supply you with a standard blank key or remote fob. We use the best quality blanks that are available and offer a fast turnaround to ensure you can get back on the road as quickly as possible. Some people prefer to visit Fiat Dealerships to obtain new keys. We can provide an easier and less expensive service. We can also come to your location, saving you the cost of towing your car to the dealer. This can also cut out the waiting period which can take up to 10 days at a dealer. Remotes The remote controls on Fiat vehicles are like keys, however they feature an IR LED (infrared). This LED sends signals to the device that opens or turns off the car when pressed. The microprocessor in a key converts the signal into a number that is then sent to device. This process is known as “keyless entry”. The more recent your vehicle is, and the more likely you will have an electronic keypad. The more advanced your car, the more features it will come with. This includes locking and unlocking your car with just one touch or opening the doors without touching the handle, and much more. The key fob is equipped with an integrated circuit chip which communicates with the immobiliser system in the car. The system will determine if the key is correct by examining a specific sequence within the transponder. If the chip isn't present, or if it is not programmed to the correct immobiliser system the vehicle won't start. A locksmith can replace the key fob in case it is damaged. They'll also have to program the new key to sync with the vehicle's immobiliser. It is important to provide your locksmith's details about your car when they call. Keyless Entry If you have keys-less entry on your Fiat 500, you can lock and unlock the car from anywhere with a push of the button. This technology is becoming more widespread in cars of all ages and types and adds convenience and security to the use of your vehicle. If your remote keyless entry system ceases to function, check to see if the coin battery in the fob is dead. Replace the battery with one with the same voltage size, type and size as the original one if it is drained. It is also important to ensure that the battery contacts are clean and free from corrosion or dust. The key fob has rubber seals to protect the electronic chip inside from water, however, prolonged exposure to salty or soapy water can cause the chip to fail. If replacement key fiat 500 is exposed to water, remove the battery and allow it to dry completely before putting it back in. You can also clean the electronic chip with isopropyl and electronic cleaner. Keyless entry systems are more secure than traditional systems because it rolls up the code used to unlock your vehicle after each use. This means that hackers won't have the ability to gain permanent access to your vehicle, even if they are able to intercept the signal. Transponders Fiat employs a crypto-key transponder system, which means that the keys/transponders must be precoded with a secret code by the Body Control Module (BCM) before being “programmed” into the BCM. A blank key that is not programmed can't be programmed as the BCM must read and write its secret key to the transponder before locking it. This is known as the process of cloning. These are new replacement outer cases for OE SIP22 Transponder keys for Fiat 500. They have a chip inside that allows you to open the doors and start the car. They must be professionally cut by a locksmith in order to fit your ignition.