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How to Repair Fiat 500 Keys There are several reasons why your Fiat 500 key fob may not function properly. One of the most common is that the tiny “watch” battery inside dies. It's a 3.3-volt lithium CR2032 and you can find it at a price of less than $3. If you require a replacement key for an older Fiat model, a locksmith is the person to call. United Locksmith can provide this service and has the tools and replacement parts needed. Keys On the outside, a Fiat key might appear basic however, inside the casing is an electronic chip that communicates with your car's immobiliser system. If the chip is not present, or not properly programmed to the immobiliser, your vehicle won't be able start. Luckily Car Keys Solutions are able to provide standard dealer technology and equipment that will ensure your Fiat key can be repaired in the event that it has suffered damage or is lost. The possession of a spare key is the most efficient method to keep your car running in the event of an emergency or being locked out. It doesn't matter if you require a standard blank or a remote fob we can help. We use the best quality blanks available and offer a fast turnaround to ensure you are back on the road in a hurry. A few people choose to visit Fiat Dealerships when they need a new key, however we can provide a more affordable and faster service. We can be there for you and save you the expense of towing your car to the dealer. This can also cut out the waiting time, which can be as long as 10 days at a dealer. Remotes The remote controls for Fiat automobiles look a lot like the keys themselves, with the exception that they feature an IR (infrared) LED at the bottom. The LED sends signals to the device which opens or turns off the car when you press. The signal is picked up by a microprocessor in the key, which transforms it into a code that is then sent to the device. This process is called “keyless entry”. The more modern your car is, the more likely you will have keysless entry. The more advanced your car has, the more features it will have. This includes everything from locking and unlocking your car with a press of a button and opening the doors without having to actually hold the door handle and much more. The key fob is equipped with an integrated circuit chip that connects to the immobiliser system in the car. The system can determine whether the key is working by checking a certain sequence of the transponder. If the chip is not present, or if it has not been programmed to the correct immobiliser system, the vehicle will not begin. If the key fob is damaged, a locksmith can make a replacement. They'll also have to program the replacement key to connect with the immobiliser of the car. It is recommended to provide your locksmith's details about your vehicle when they call. Keyless Entry If you have a keyless entry system in your Fiat 500, you can lock and unlock the vehicle from any location with the click of one button. This technology is becoming more widespread in all cars of all ages and models and adds security and convenience to the use of your vehicle. Check to see if your remote keyless entry system is not working. The coin battery inside the fob may be dead. If the battery has been drained replace it with a new one with the same voltage, size and type as the original. You should also ensure that the contacts of the battery are free of dust or corrosion. The key fob's rubber seals to protect the electronic chip from water however, prolonged exposure to salty or soapy water can cause the chip to fail. If your key fob has been exposed to water, remove and allow the battery to dry completely before replacing it. You can also try cleaning the electronic chip with isopropyl alcohol, or an electronic cleaner. The keyless entry system is more secure than conventional systems because it rolls up the code that is used to unlock your car after every use. This means that even if hackers do intercept the signal it isn't possible for them to gain access to your vehicle. Transponders Fiat uses a crypto key transponder system which means that keys and transponders have to be precoded by the Body Control Module before they are “programmed” in the BCM. fiat key replacement is why a blank unwritten key is not able to be programmed, as the BCM has to read & write its secret key to the transponder, then lock it. This is referred to as”cloning. These are new replacement outer case SIP22 transponder keys to your Fiat 500. They come with a chip that opens the door and begins the vehicle. Locksmiths will have to cut them to fit the ignition.