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How to Repair Fiat 500 Keys There are a variety of reasons why your Fiat 500 key fob may not function properly. fiat 500 key replacement cost of the most common is when the small “watch” battery inside dies. It's an 3.3-volt lithium CR2032, and you can get it at a price of less than $3. A locksmith is the ideal place to call when you need a new car key for a classic Fiat model. United Locksmith can provide this service and also has the tools and replacement parts needed. Keys Fiat keys might appear simple but inside is a chip that is communicating with the immobiliser system of your vehicle. If the chip isn't present or programmed to the immobiliser system in a correct manner then your vehicle won't start. Luckily, Car Keys Solutions are able to offer dealer-standard technology and equipment that will ensure your Fiat key is repaired, even the damage it sustained or is lost. A spare key can keep your vehicle in case of an accident or lockout. We can provide you with a standard key or remote fob. We only use the finest blanks that are available and offer an immediate turnaround time so that you get back on the road as quickly as possible. Some customers prefer to visit an Fiat Dealership to purchase a new key. We can offer the fastest and most affordable service. We can also come to your location, saving you the cost of towing your car 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 similar to keys, but they have an IR LED (infrared). The LED sends a digital signal to the device that allows the vehicle to open or start when pressed. The signal is picked up by a microprocessor within the key, which transforms it into a code which is then sent to the device. This process is known as “keyless entry”. The more recent your car is, the more likely it is that you have an electronic keypad. The more advanced your vehicle has, the more features it will come with. This includes locking and unlocking your car with the one touch and opening the doors without touching the handle, and much more. The key fob comes with an integrated circuit chip that communicates with the immobiliser system in the car. The system can determine if the correct key is in place by looking for a particular sequence of digits in the transponder chip. 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 repair the key fob if it is damaged. They will also have to program the new key to sync with the vehicle's immobiliser. This is a crucial part of the procedure, and you should be prepared to give information about your car to your locksmith if they contact you. Keyless Entry If you have keys-less entry on your Fiat 500, you can secure and unlock the car from any location with the click of the button. This technology is increasingly common across all cars which adds convenience and security to the usage of your car. Check to see if your remote keyless entry system is not working. The battery in the fob could be dead. If the battery is empty, replace it with a new one with the same size, voltage and type as the original. Also, make sure that the battery's contacts are free of dust or corrosion. The rubber seals on the key fob are designed 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 is exposed to water, you must remove the battery and allow it to dry completely before putting it back in. You can also clean the electronic chip with isopropyl or an electronic cleaner. Keyless entry systems are more secure than traditional systems, as it rolls up the code used to unlock your vehicle after every use. This means that hackers won't be able gain permanent access to the vehicle even in the event that they intercept the signal. Transponders Fiat utilizes a crypto key transponder, which means that keys/transponders must be precoded with a secret code by the Body Control Module (BCM) before being “programmed” into the BCM. This is why a blank unwritten key cannot be programmed, as the BCM has to read & write the secret key to the transponder and then lock it. This is referred to as cloning. These are brand new replacement outer case OE SIP22 transponder keys for your Fiat 500. They have a chip that unlocks the door and opens the vehicle. Locksmiths must cut them to fit in your ignition.