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How to Repair Fiat 500 Keys There are a variety of reasons why your Fiat 500 key FOB may cease to function. The tiny “watch” inside the key FOB can fail. This is a 3.3-volt lithium CR2032, and you can get it for less than $3. When you need a replacement key for an older Fiat model, a locksmith is the person to contact. United Locksmith can provide this service and can provide the tools and replacement parts needed. Keys Fiat keys may appear simple but inside is an electronic chip that communicates with the immobiliser system of your car. If the chip is not present, or is not properly programmed to the immobiliser, your car won't be able start. car key cover fiat 500 can offer you standard equipment and technology from dealers to repair your Fiat key, regardless of whether the key has been damaged or lost. Having a spare key is the most efficient way to keep your car running in the event of a disaster or being locked out. We can supply you with a standard blank key or a remote fob. We only use the top blanks and offer a quick turnaround so you can get back to driving in a short time. A few people choose to go to a Fiat Dealership when they require a new ignition key, but we can provide a less expensive and faster service. You'll also save the towing charges of bringing your car to and from the dealership, as we are able to come to you. This can also cut out the waiting period which can be as long as 10 days at a dealer. Remotes The remote controls on Fiat vehicles are like keys, however they feature an IR LED (infrared). The LED sends an indication to the device which can open or start the car when the button is pressed. The microprocessor inside the key transforms the signal into a number that is then sent to device. This is referred to as “keyless entry”. The more recent your car is and the more likely it will be to feature a keyless entry system. The more advanced your vehicle, the more features it will come with. This includes everything from locking and unlocking your car with a press of a button to opening the doors without having to hold the door handle and more. The key fob comes with an integrated circuit chip that connects to the vehicle's immobiliser system. The system is able to determine if the key is correct by checking a specific sequence of the transponder. The vehicle won't start if the chip is missing or when it's not programmed with the right immobiliser system. A locksmith can repair the key fob in case it is damaged. The locksmith will also have to program the new key so that it can sync up with the immobiliser of the vehicle. It is important to provide your locksmith details about your vehicle when they call. Keyless Entry With the keyless entry option on your Fiat 500 you can lock or unlock the vehicle with just a touch of an button. This technology is increasingly common across all cars, and adds convenience and security to the usage of your vehicle. Check to see if the remote keyless entry system is not working. The battery inside the fob might be dead. If the battery is depleted, replace it with a new one with the same voltage, size, and type as the original. You should also ensure that the battery's contact points are clean and free of dust or corrosion. The rubber seals on the key fob shield the electronic chip from water. However, prolonged exposure to salty or soapy water may cause the chip to fail. If your key fob has been exposed to water, take out the battery and let it dry completely before putting it back into. You can also clean the electronic chip with isopropyl alcohol or electronic cleaner. The keyless entry system is more secure than the traditional systems because it generates the code used to unlock your vehicle after each use. This means that hackers won't be able to gain permanent access to the vehicle even when they intercept the signal. Transponders Fiat uses a crypto key transponder system, which means that the keys/transponders must be precoded with an encrypted code by the Body Control Module (BCM) before being “programmed” into the BCM. A blank key that isn't programmed cannot be done because the BCM must read and write the secret code onto the transponder before locking it. This is referred to as the process of cloning. These are new replacement outer case OE SIP22 transponder keys for your Fiat 500. They have a chip that opens the door and starts the vehicle. Locksmiths must cut them to fit your ignition.