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How to Repair Fiat 500 Keys There are a variety of reasons why your Fiat 500 key fob may stop working. The tiny “watch” inside the key FOB often dies. It's an 3.3-volt lithium CR2032 You can buy it at a price of less than $3. When you need keys to replace an older Fiat model, a locksmith is the person to call. United Locksmith can provide this service and has the tools and replacement parts required. Keys Fiat keys might appear simple however inside is a chip that is communicating with the immobiliser system in your car. If the chip isn't in place or programmed to the immobiliser system in a correct manner the car will not start. Luckily, Car Keys Solutions are able to provide standard dealer technology and equipment that will ensure your Fiat key can be repaired, even the damage it sustained or has been lost. A spare key will keep your vehicle running in case of an accident or lockout. We can provide you with a standard key or remote fob. We use only the highest-quality blanks available and offer rapid turnaround time to ensure you get back on the road as quickly as possible. Some individuals will opt to go to a Fiat Dealership when they require a replacement key, but we can provide a more affordable and faster service. We can also come to you, saving you the cost of towing your car to the dealer. This can also decrease the waiting time, which is often up to 10 days for dealers. 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 which allows the vehicle to open or start when the button is pressed. fiat 500 key cover is detected by a microprocessor in the key, which transforms it into a number that is then transmitted to the device. This method is referred to as “keyless entry”. The more recent your vehicle is and the more likely it is to have a keyless entry feature. The newer your vehicle is and the more features you'll likely get with it. This includes everything from locking and unlocking your car using a button to opening the doors without having to hold the door handle and many more. The key fob is equipped with an integrated circuit chip which communicates with the immobiliser system of the car. The system will determine whether the key is in fact correct by checking a particular sequence of the transponder. If the chip isn't present, or isn't programmed to the correct immobiliser system, then the vehicle will not start. If the key fob is damaged, a locksmith is able to create a new one. 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 must be prepared to give information regarding your vehicle to your locksmith when they call you. Keyless Entry If you have an entry system that is keyless on your Fiat 500, you can lock and unlock the car from any location with the click of the button. This technology is increasingly common in all kinds of vehicles which adds convenience and security to the usage of your car. If your remote keyless entry system ceases to function look to see whether the battery in the fob has gone dead. If the battery is empty replace it with a fresh one that is of the same voltage, size and type as the original. Also, make sure that the battery's contact points are clean and free from corrosion or dust. The key fob is fitted with rubber seals that protect the electronic chip inside from water, however, prolonged exposure to soapy or salty water could cause the chip to fail. If your key fob has been exposed to water, remove and let the battery dry completely before replacing it. You can also clean the electronic chip with isopropyl alcohol or electronic cleaner. Keyless entry systems are more secure than the traditional systems, as it rolls up the code used to unlock your vehicle after each use. This means that even if hackers do intercept the signal it isn't possible for them to gain permanent access to your vehicle. Transponders Fiat utilizes a crypto key transponder system, which means that the keys or transponders must be precoded with a secret code by the Body Control Module (BCM) before being “programmed” into the BCM. This is why an unwritten key cannot be programmed, as the BCM must read and write the secret key to the transponder, then lock it. This is referred to as”cloning. These are new replacement outer cases to replace SIP22 Transponder keys for Fiat 500. They have a chip that opens the door and starts the vehicle. They will need to be cut professionally by a locksmith so that they fit your ignition.