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How to Repair Fiat 500 Keys There are several reasons why your Fiat 500 key fob may not function properly. The tiny “watch” inside the key FOB can fail. This is a 3.3-volt lithium CR2032 and you can purchase it anywhere for less than $3. When you need keys to replace an older Fiat model, a locksmith is the right person to contact. United Locksmith can provide this service and will have the tools and spare parts needed. Keys Fiat keys may look simple, but inside is a chip that is communicating with the immobiliser system of your car. If the chip isn't present or programmed to the immobiliser system in a correct manner the car will not start. Fortunately Car Keys Solutions are able to provide standard dealer technology and equipment that will ensure your Fiat key is repaired, even if it has suffered damage or is lost. A spare key can keep your vehicle operating in the event of an accident or lockout. It doesn't matter if you require a standard blank or remote fob, we can help. We only use the finest blanks we can find and provide rapid turnaround time to ensure you can get back on the road quickly. Some people choose to visit Fiat Dealerships to obtain new keys. We can offer an easier and less expensive service. We can also come to your location without the expense of towing your vehicle to the dealer. This can also cut out the waiting time which can be as long as 10 days at a dealer. Remotes Remote controls for Fiat cars look like the keys, but they feature an IR (infrared) LED at the end. The LED transmits an electronic signal to the device which opens or starts the vehicle when pressed. The microprocessor inside a key converts this signal into a code that is then sent to the device. This process is called “keyless entry”. The more modern your vehicle and the more likely you are to include a keyless entry system. The more modern your car is has, the more features you'll likely find in it. This includes everything from locking and unlocking your car using 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 communicates with the car's immobiliser system. The system determines whether the key is working by checking a particular sequence in the transponder. If the chip isn't present, or if it isn't programmed to the correct immobiliser system the vehicle won't begin. When the key fob is damaged, a locksmith will make a replacement. They'll also have to program the replacement key to sync with the car's immobiliser system. This is a crucial part of the procedure, and you should be prepared to give information about your vehicle to the locksmith if they contact you. Keyless Entry With a keyless entry system on your Fiat 500 you can lock or unlock the car with the touch of one button. This technology is becoming more common in vehicles of all types and ages and adds convenience and security to the use of your vehicle. Verify that your remote keyless entry system isn't working. The coin battery inside the fob might be dead. Replace the battery with one that has the same voltage size, type and size as the original if it's depleted. It is important to ensure that the battery's contact points are clean and free of dust or corrosion. The key fob has rubber seals that protect the electronic chip from water however, prolonged exposure to salty or soapy water could cause the chip to fail. If replacement fiat 500 key fob has been exposed to water, take it out and let the battery dry completely before replacing it. You can also clean the electronic chip by using isopropyl, or electronic cleaner. Keyless entry systems are more secure than the traditional systems, since it generates the code that is used to unlock your vehicle after each use. This means that hackers won't be able gain permanent access to your vehicle even if they are able to intercept the signal. Transponders Fiat employs a crypto-key transponder system this means that keys or transponders must be precoded in the Body Control Module before they are “programmed” by the BCM. A blank key that has not been programmed cannot be done because the BCM must read and write the secret key into the transponder before locking it. This is known as cloning. These are brand new replacement outer cases OE SIP22 Transponder keys for Fiat 500. They contain a chip that opens the doors and also starts the car. They must be cut professionally by a locksmith to fit your ignition.