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How to Repair fiat key replacement There are a variety of reasons why your Fiat 500 key fob may stop working. The tiny “watch” inside the key FOB can fail. This is a 3.3-volt lithium CR2032 and you can find it anywhere for less than $3. If you require keys to replace an older Fiat model, a locksmith is the one to call. United Locksmith can provide this service and can provide the tools and spare parts required. Keys Fiat keys may appear to be simple, but inside is a chip that communicates with the immobiliser system of your car. If the chip isn't present, or not properly programmed to the immobiliser, your car isn't able to start. Fortunately Car Keys Solutions are able to provide dealer-standard technology and equipment to ensure your Fiat key can be repaired when it has been damaged or has been lost. A spare key will keep your vehicle running in the event of an accident or lockout. It doesn't matter if you require a standard blank or a remote fob we can help. We use only the highest-quality blanks and provide a fast turnaround to ensure you are back on the road in a hurry. Some people prefer to visit a Fiat Dealership if they require a new key, but we are able to provide a more affordable and quicker service. We can even come to you without the expense of towing your car to the dealer. This can also cut down on the waiting time, which can take up to 10 days for dealers. Remotes The remote controls on Fiat vehicles are similar to keys, but they have an IR LED (infrared). This LED sends an electronic signal to the device that opens or turns off the vehicle when it is pressed. The signal is received by a microprocessor inside the key, which converts it to a code that is then sent to the device. This process is called “keyless entry”. The more recent your car is, the more likely you are to feature a keyless entry system. The more modern your car is and the more features you'll likely have. This includes locking and unlocking your car at the pushing a button or 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 in the car. The system can determine if the correct key is present by observing a certain sequence of numbers in the transponder chip. The vehicle won't start in the event that the chip is not present or isn't programmed to the correct immobiliser system. A locksmith can replace the key fob if it is damaged. The locksmith will also need to program the new key to link with the immobiliser system of your vehicle. You must be prepared to give your locksmith information regarding your vehicle when they call. Keyless Entry With the keyless entry option on your Fiat 500 you can lock or unlock the car by pressing an button. This technology is becoming more common in all cars of all ages and types as it provides convenience and security to your car's use. If your remote keyless entry system ceases to function, check to see whether the battery in the fob has died. If the battery is depleted, replace it with a new one that is the same voltage, size, and type as the original. You should also make sure that the battery's contacts are free of corrosion or dust. The rubber seals on the key fob guard the chip from water. However exposure to prolonged soapy water or salty water can cause the chip to fail. If your key fob has been exposed to water, take it off and let the battery dry completely before replacing it. You can also clean the electronic chip by using isopropyl and electronic cleaner. Although some may think that keyless entry is less secure, the system is actually more secure than other systems because the code that unlocks your car is rolled up after each use. This means that even if hackers are able to intercept the signal it isn't possible for them to gain access to your car. Transponders Fiat uses a crypto-key transponder system, which means that the keys/transponders need to be precoded by the Body Control Module before they are “programmed” by the BCM. This is the reason why an unwritten key is not able to be programmed as the BCM has to read & write its secret key to the transponder and then lock it. This is referred to as the process of cloning. These are new replacement outer case OE SIP22 transponder keys to your fiat 500. They contain a chip that opens the doors and also starts the car. Locksmiths will have to cut the chip to fit your ignition.