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How to Repair Fiat 500 Keys There are several reasons why your Fiat 500 key FOB may cease to function. The small “watch” inside the key FOB will often fail. This is a 3.3 volt lithium, CR2032, that is available anyplace for less than $3. If you require the replacement key for an older Fiat model locksmith is the one to call. United Locksmith offers this service, and has all the parts and tools required. Keys Fiat keys may appear simple however inside is a chip that communicates with the immobiliser system in your car. If the chip isn't present, or is not properly programmed to the immobiliser, your vehicle isn't able to start. Luckily Car Keys Solutions are able to offer dealer-standard technology and equipment to ensure that your Fiat key can be repaired, even in the event that it has suffered damage or is lost. A spare key can keep your vehicle operating in the event of an accident or lockout. We can supply you with a standard key or remote fob. We use only the highest-quality blanks available and offer quick turnaround so that you can get back on the road in a hurry. thekeylab.co.uk prefer to visit an Fiat Dealership to purchase new keys. We can provide the service faster and more affordable. We can even come to you, saving you the cost of towing your car to the dealer. This can also reduce the time it takes to wait which can be anywhere from 5 to 10 days. Remotes The remote controls for Fiat cars look like the keys themselves, with the exception that they feature an IR (infrared) LED on the bottom. This LED sends an indication to the device that opens or starts the car when you press. The signal is detected by a microprocessor located in the key, which transforms it to a code that is then transmitted to the device. This is referred to as “keyless entry”. The more modern your car is, and the more likely you are to have keysless entry. The more modern your vehicle, the more features you'll likely have. This includes locking and unlocking your car with the pressing a button and opening the doors with out touching the handle, and much more. The key fob is fitted with an integrated circuit chip that communicates with the immobiliser system of the car. The system can determine whether the correct key is in place by examining a specific sequence of digits in the transponder chip. If the chip is not there, or if it has not been programmed to the correct immobiliser system the vehicle won't begin. If the key fob has been damaged, a locksmith may create a replacement. They'll also need to program the replacement key to sync with the immobiliser of the car. It is recommended to provide your locksmith with information regarding your vehicle when they call. Keyless Entry With a keyless entry on your Fiat 500 you can lock or unlock the vehicle with just a touch of an button. This technology is becoming more prevalent in cars of all types and ages, and it adds convenience and safety to your car's use. Check to see if the remote keyless entry system is not working. The coin battery inside the fob might be dead. If the battery is depleted, replace it with a fresh one that is of the same voltage, size, and type as the original. Also, ensure that the battery's contacts are free of dust or corrosion. The key fob comes with rubber seals that protect the electronic chip inside from water, but prolonged exposure to salty or soapy water can cause the chip to fail. If your key fob is exposed to water, take out the battery and let it dry completely before putting it back in. You can also clean the electronic chip using isopropyl alcohol or electronic cleaner. While some people may believe that keyless entry isn't as secure, this system is actually more secure than traditional systems because the code used to unlock your car is rolled up after each use. This means that hackers will not be able to gain permanent access to the vehicle even in the event that they intercept the signal. Transponders Fiat employs a crypto-key transponder, which means that keys and transponders have to 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 because the BCM must read and write the secret key to the transponder before locking it. This process is referred to as”cloning. These are brand new replacement outer cases to replace SIP22 Transponder keys for Fiat 500. They have a chip that unlocks the door and opens the vehicle. Locksmiths must cut them to fit your ignition.