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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. This is a 3.3-volt lithium CR2032, and you can get it anywhere for less than $3. A locksmith is the best place to call when you require a replacement car key for an old Fiat model. United Locksmith offers this service and comes with all the tools and parts needed. Keys Fiat keys may appear simple, but inside is a chip that communicates with the immobiliser system of your car. If this chip is not in place or programmed to the immobiliser system correctly then your vehicle won't start. Car Keys Solutions can offer you the latest technology and equipment from dealers to repair your Fiat key, even if the key is damaged or lost. A spare key is the most efficient way to keep your car running in the event of a crisis or being locked out. We can supply you with a standard key or remote fob. We only use top quality blanks and offer a fast turnaround so you can get back to driving quickly. Some people prefer to visit Fiat Dealerships to obtain new keys. We can provide an easier and less expensive service. You'll also save the towing costs of getting your vehicle from and to the dealership, as we can deliver the key to you. fiat 500 key replacement cost can reduce the wait time that can be up to 10 days. Remotes The remote controls on Fiat vehicles are like keys, however they have an IR LED (infrared). The LED sends a digital signal to the device that opens or starts the vehicle when pressed. The microprocessor in the key transforms the signal into a code which is then transmitted to the device. This is known as “keyless entry”. The more recent your car is, the more likely you are to have a keyless entry system. The more advanced your car has, the more features it will come with. This includes everything from locking and unlocking the car with a button press to unlocking the doors without having to actually touch the door handle and much more. The key fob has an integrated circuit chip that connects to the immobiliser system in the car. The system is able to determine whether the correct key is in place by looking for a specific sequence of digits within the transponder chip. The vehicle won't start in the event that the chip is not present or in the event that it is not programmed to the correct immobiliser system. When the key fob is damaged, a locksmith can make a replacement. The locksmith will also need to program the new key to connect up with the immobiliser of the vehicle. This is an essential part of the procedure, and you must be prepared to disclose information about your vehicle to your locksmith when they call. Keyless Entry If you have an entry system that is keyless on your Fiat 500, you can secure and unlock the car from any location with the click of the button. This technology is becoming more widespread in cars of all ages and types and can add convenience and safety to your car's use. Check to see if your remote keyless entry system is not working. The coin battery inside the fob might be dead. If the battery is drained, replace it with a new one that is of the same size, voltage and type as the original. You should also make sure that the contacts of the battery are free of dust or corrosion. The key fob comes with rubber seals that protect the electronic chip from water however, prolonged exposure to salty or soapy water could 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 try cleaning the electronic chip with isopropyl alcohol or an electronic cleaner. While some may believe that keyless entry is less secure, this system is actually more secure than traditional systems due to the fact that the code used to unlock your car gets rolled up after each use. This means that hackers won't be able to gain access to your vehicle, even if they are able to intercept the signal. Transponders Fiat uses a crypto-key transponder system, which means that the keys and transponders have to be precoded by the Body Control Module before they are “programmed” within the BCM. A key that is blank and has not been programmed can't be programmed because the BCM must read and write its secret key into the transponder before locking it. This is referred to as cloning. These are new replacement outer case SIP22 transponder keys that fit your fiat 500. They contain 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.