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How to Repair Fiat 500 Keys There are several reasons your Fiat 500 key FOB may cease to function. The small “watch” inside the key FOB is often dead. It's a 3.3-volt lithium CR2032 You can buy it anywhere for less than $3. When you need a new key for an older Fiat model locksmith is the person to contact. United Locksmith offers this service and comes with all the tools and parts required. Keys Fiat keys might appear simple, but inside is an electronic chip that connects to the immobiliser system of your car. If fiat 500 key cover isn't present or programmed to the immobiliser system in a correct manner then your vehicle won't start. Fortunately, Car Keys Solutions are able to provide standard dealer technology and equipment to ensure your Fiat key is repaired, even in the event that it has suffered damage or has been lost. Having a spare key is the best method to keep your car running in the event of an emergency or being locked out. We can provide 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 are back on the road in a hurry. Some customers prefer to visit a Fiat Dealership to get new keys. We can offer an easier and less expensive service. We can be there for you to save you the expense of towing your vehicle to the dealer. This can also cut out the waiting time which can last up to 10 days for dealers. Remotes The remote controls on Fiat vehicles are like keys, however they have an IR LED (infrared). This LED sends an electronic signal to the device which opens or starts the vehicle when pressed. The signal is received by a microprocessor within the key which converts it into a number that is then transmitted to the device. This is referred to as “keyless entry”. The more recent your vehicle is, the more likely it will be to include a keyless entry system. The newer your vehicle is has, the more features you'll likely have. This includes locking and unlocking your car with the a push of a button, opening the doors without touching the handle, and so much more. The key fob is outfitted with an integrated circuit chip which communicates with the immobiliser system in the car. The system is able to determine whether the correct key is in place by looking for a specific sequence of numbers in the transponder chip. If the chip is not present, or if it is not programmed to the correct immobiliser system, the vehicle will not begin. A locksmith can repair the key fob in case it is damaged. They will also have to program the replacement key to connect with the immobiliser system of your car. This is a crucial aspect of the process, and you should be prepared to give information about your vehicle to the locksmith when they call. Keyless Entry If you have an entry system that is keyless on your Fiat 500, you can lock and unlock your car at any time by pressing of a button. This technology is becoming more widespread in all cars of all ages and types and adds security and convenience to the vehicle's usage. If your remote keyless entry system stops working, check to see whether the battery in the fob has gone dead. Replace the battery with a fresher one that has the same voltage size, type and size as the original if it's drained. Also, ensure that the contacts of the battery are free of corrosion or dust. The rubber seals on the key fob shield the chip from water. However exposure to prolonged salty or soapy water may 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 try cleaning the electronic chip with isopropyl alcohol or electronic cleaner. While some people might believe that keyless entry is less secure, this system is actually more secure than conventional systems due to the code that unlocks your car gets rolled up after every use. This means that even if hackers do intercept the signal that they receive, they will not be able to gain permanent access to your vehicle. Transponders Fiat employs a crypto-key transponder, which means that keys and transponders have to be encoded with an encrypted code by the Body Control Module (BCM) before being “programmed” into the BCM. This is the reason why an unwritten key is not able to be programmed, as the BCM has to read & write the secret code to the transponder before locking it. This is referred to as”cloning. These are brand new replacement outer cases OE SIP22 Transponder keys for Fiat 500. They come with a chip that unlocks the doors and opens the car. Locksmiths need to cut the chip to fit your ignition.