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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 tiny “watch” inside the key FOB will often fail. This is a 3.3 Volt lithium battery, CR2032, which you can purchase almost anyplace for less than $3. When you need a new key for an older Fiat model, a locksmith is the one to call. United Locksmith offers this service, and has all the parts and tools required. Keys Fiat keys may look simple however inside is an electronic chip that connects to the immobiliser system of your car. If g28carkeys.co.uk isn't in place or programmed to the immobiliser system properly then your vehicle will not start. Fortunately Car Keys Solutions are able to provide dealer-standard technology and equipment to ensure that your Fiat key can be repaired, even if it has suffered damage or is lost. A spare key can keep your vehicle running in the event of an accident or lockout. We can supply you with a standard blank key or a remote fob. We only use the finest blanks and provide a fast turnaround to ensure you can get back on the road as quickly as possible. Some customers prefer to visit Fiat Dealerships to obtain an updated key. 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 will also cut down on the wait time that can be up to 10 days. Remotes The remote controls of Fiat vehicles are similar to keys, but they come with an IR LED (infrared). This LED transmits an electronic signal to the device that can open or shut down the vehicle when the button is pressed. The signal is received by a microprocessor located in the key which converts it to a code that is then transmitted to the device. This is referred to as “keyless entry”. The more recent your vehicle is and the more likely to have a keyless entry system. The more advanced your vehicle, the more features it will come with. This includes locking and unlocking your car with a one touch and opening the doors without touching the handle, and much more. The key fob is equipped with an integrated circuit chip that communicates with the immobiliser system of the car. The system will determine whether the key is genuine by checking a certain sequence of the transponder. If the chip isn't there, or if it isn't programmed to the correct immobiliser system, then the vehicle will not begin. A locksmith can replace the key fob in case it is damaged. The locksmith will also need to program the new key to sync up with the immobiliser system of the vehicle. 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 your car with just a touch of an button. This technology is becoming more widespread in all cars of all kinds and ages and can add convenience and security to your car's use. Check to see if your remote keyless entry system isn't working. The battery that powers the coin inside the fob could be depleted. Replace the battery with a newer one of the same voltage size, type, and size as the one that came with it if it's depleted. Also, make sure that the battery's contact points are clean and free from dust or corrosion. The key fob's rubber seals to protect the chip from water but prolonged exposure to soapy or salty water can cause the chip to fail. If your key fob has been exposed to water, you must remove it and allow the battery to dry completely before replacing it. You can also clean the electronic chip with isopropyl alcohol, or an electronic cleaner. While some people might believe that keyless entry isn't as secure, the system is actually more secure than traditional systems because the code that unlocks your car gets rolled up after each use. This means that hackers will not be able gain permanent access to the vehicle even when they intercept the signal. Transponders Fiat employs a crypto-key transponder system which means that the keys/transponders must be precoded by the Body Control Module before they are “programmed” within the BCM. This is the reason why an unwritten key is not able to be programmed as the BCM must read and write its secret key to the transponder, then lock it. This is known as the process of cloning. These are new replacement outer case OE SIP22 transponder keys that fit your Fiat 500. They have a chip that unlocks the door and opens the vehicle. They must be cut professionally by a locksmith in order to fit your ignition.