How to Repair Fiat 500 Keys There are a few reasons your Fiat 500 key FOB may cease to function. One of the most frequent is the tiny "watch" battery that's inside dies. This is an 3.3-volt lithium CR2032 and you can find it anywhere for less than $3. If you require a replacement key for an older Fiat model, a locksmith is the right person to contact. United Locksmith offers this service and has all the tools and spare parts required. Keys Fiat keys may appear simple but inside is an electronic chip that connects to the immobiliser system of your car. If the chip is not present, or is not properly programmed to the immobiliser, your car will not be able to start. Fortunately Car Keys Solutions are able to offer standard technology and equipment to ensure your Fiat key can be repaired when it has been damaged or is lost. The possession of a spare key is the best method to keep your car running in the event of an emergency or being locked out. No matter if you need a standard blank or a remote fob, we can help. https://www.thekeylab.co.uk/fiat-car-keys/ use the highest quality blanks we can find and provide quick turnaround so that you get back on the road as quickly as possible. Some people prefer to visit Fiat Dealerships to obtain new keys. We can offer the fastest and most affordable service. We can be there for you and save you the expense of towing your vehicle to the dealer. This will also cut down on the time it takes to wait which can range from a few days to 10 days. Remotes The remote controls of Fiat vehicles are like keys, however they come with an IR LED (infrared). This LED sends a signal to the device which allows the car to open or stop when you press. The microprocessor inside the key converts the signal into a code, which is then transmitted to the device. This process is called "keyless entry". The more recent your vehicle is, the more likely you are to have the keyless system. The more advanced your car is, the more features it will come with. This includes locking and unlocking your car at the one touch, opening the doors without touching the handle, and much more. The key fob comes with an integrated circuit chip that communicates with the immobiliser system of the car. The system can determine if the correct key is present by examining a specific sequence of numbers in the transponder chip. If the chip is not present, or if it has not been programmed to the correct immobiliser, the vehicle will not start. A locksmith can replace the key fob in case it is damaged. They'll also have to program the new key to be synced with the vehicle's immobiliser. You should be prepared to provide your locksmith details about your car when they call. Keyless Entry With a keyless entry on your Fiat 500 you can lock or unlock the vehicle with the touch of the button. This technology is becoming more common across all cars which adds security and convenience to the use of your car. Check to see if the remote keyless entry system is not working. The coin battery inside the fob could be depleted. Replace the battery with one with the same voltage, type, and size as the one that came with it if it has been drained. Also, ensure that the contacts of the battery are free of dust or corrosion. The key fob is fitted with rubber seals that protect the electronic chip from water however, prolonged exposure to salty or soapy water could cause the chip to fail. If your key fob has been exposed to water, take it out and allow the battery to dry completely before replacing it. You can also try cleaning the electronic chip using isopropyl alcohol or electronic cleaner. The keyless entry system is more secure than traditional systems, because it rolls up the code used to unlock your car after each use. This means that hackers won't be able gain permanent access to the vehicle even if they are able to intercept the signal. 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" within the BCM. A blank key that is not programmed can't be programmed as the BCM must read and write the secret key to the transponder before locking it. This process is called"cloning. These are brand new replacement outer case SIP22 transponder keys to your Fiat 500. They feature a chip which unlocks the door and opens the vehicle. Locksmiths will need to cut the chip to fit your ignition.