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How to Repair Fiat 500 Keys There are many reasons your Fiat 500 key FOB may not function properly. One of the most common is when the small “watch” battery that's inside the device dies. This is an 3.3-volt lithium CR2032 and you can find it for less than $3. A locksmith is the ideal place to call when you require a new key for your car for an old Fiat model. United Locksmith can provide this service and will have the tools and replacement parts required. Keys On the outside a Fiat key may appear to be basic however inside the casing is an electronic chip that communicates with your car's immobiliser system. If the chip isn't present or programmed to the immobiliser system properly the car will not start. Car Keys Solutions can offer you standard equipment and technology from dealers to repair your Fiat key, regardless of whether the key is damaged or lost. The possession of a spare key is the best method to keep your car running in the event of a crisis or being locked out. We can supply you with a standard blank key or a remote fob. We use the best quality blanks available and offer an immediate turnaround time so that you can get back on the road quickly. Many people decide to go to a Fiat Dealership to get new keys. We can provide the fastest and most affordable service. We can also come to your location without the expense of towing your car to the dealer. This can reduce the time it takes to wait that can be up to 10 days. Remotes The remote controls for Fiat vehicles look similar to keys, however they have an IR (infrared) LED at the end. The LED transmits an electronic signal to the device, which opens or starts the vehicle when the button is pressed. The signal is interpreted by a microprocessor in the key, which converts it to a code that is then transmitted to the device. This method is referred to as “keyless entry”. The more recent your vehicle is, the more likely you are to have the keyless system. The more modern your car is equipped with, the more features it will likely get with it. This includes locking and unlocking your car at the a push of a button and opening the doors without touching the handle, and so much more. The key fob is fitted with an integrated circuit chip that communicates with the immobiliser system in the car. The system determines whether the key is genuine by examining a specific sequence of the transponder. If the chip is not there, or if it has not been programmed with the correct immobiliser system the vehicle won't begin. If the fob for the key is damaged, a locksmith may create a replacement. The locksmith will also need to program the new key so that it can sync with the immobiliser system of the car. This is an important part of the process, and you should be prepared to provide details about your vehicle to your locksmith when they call you. Keyless Entry With a keyless entry system on your Fiat 500 you can lock or unlock your car at the touch of one button. This technology is becoming more popular in cars of all types and ages as it provides convenience and safety to the use of your vehicle. Check to see if your remote keyless entry system isn't working. G28 Car Keys that powers the coin inside the fob could be depleted. Replace the battery with one with the same voltage size, type, and capacity as the original one if it is drained. Also, ensure that the contacts of the battery are free of dust or corrosion. The key fob comes with rubber seals to protect the electronic chip from water but prolonged exposure to soapy or salty water can cause the chip to fail. If your key fob has been exposed to water, take it off and let the battery dry completely before replacing it. You can also try cleaning the electronic chip with isopropyl alcohol or an electronic cleaner. Keyless entry systems are more secure than traditional systems, because it generates the code that is used to unlock your vehicle after each use. This means that even if hackers are able to intercept the signal and attempt to access your car, they won't be able to gain permanent access to your car. Transponders Fiat uses a crypto keys transponder system, which means that the keys and transponders have to be precoded with a secret code that is generated by the Body Control Module (BCM) before being “programmed” into the BCM. This is the reason why an unwritten key cannot be programmed because the BCM has to read & write the secret key to the transponder & lock it. This is referred to as the process of cloning. These are new replacement outer case SIP22 transponder keys that fit your fiat 500. They feature a chip which opens the door and starts the vehicle. They must be professionally cut by a locksmith to match your ignition.