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How to Repair Fiat 500 Keys There are a few reasons your Fiat 500 key FOB may cease to function. The small “watch” inside the key FOB can fail. This is an 3.3 volt lithium, CR2032, which is available anywhere for under $3. When you need the replacement key for an older Fiat model, a locksmith is the right person to call. United Locksmith offers this service and has all the tools and spare parts needed. Keys Fiat keys may 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 correctly the car will not start. Car Keys Solutions can offer you dealer-standard equipment and technology to repair your Fiat key, even if the key is damaged or lost. Having a spare key is the best way to keep your car running in the event of a crisis or being locked out. If you require a standard blank or remote fob, we are able to assist. We only use the best blanks and offer a quick turnaround so you can get back to driving in a short time. Many people decide to go to Fiat Dealerships to obtain a new key. We can provide the service faster and more affordable. We can also come to you and save you the expense of towing your car to the dealer. This can also cut out the waiting time which is often up to 10 days for dealers. Remotes The remote controls on Fiat vehicles are similar to keys, but they come with an IR LED (infrared). This LED sends an indication to the device that opens or starts the car when it is pressed. The signal is picked up by a microprocessor within the key, which transforms it to a code that is then transmitted to the device. This process is known as “keyless entry”. The more recent your car is, the more likely it is to feature a keyless entry system. The more advanced your vehicle has, the more features will have. This includes everything from locking and unlocking the vehicle with a single press and opening the doors without having to touch the door handle and much more. The key fob comes with an integrated circuit chip that communicates with the immobiliser system of the car. The system determines whether the key is working by checking a particular sequence within the transponder. If the chip is not present, or has not been programmed to the correct immobiliser, the vehicle won't start. A locksmith can repair the key fob in case it is damaged. G28 Car Keys will also need to program the new key to connect up with the immobiliser system in the vehicle. It is important to provide your locksmith details regarding your vehicle whenever they call. Keyless Entry If you have a keyless entry system on your Fiat 500, you can lock and unlock the car from any location with the click of the button. This technology is becoming more widespread in all cars of all ages and types and adds convenience and security to the use of your vehicle. Examine your remote keyless entry system isn't working. The coin battery inside the fob may be dead. If the battery is drained replace it with a fresh one that is the same size, voltage and type as the original. Also, ensure that the contacts of the battery are free of dust or corrosion. The rubber seals on the key fob are designed to protect the electronic chip from water. However long-term exposure to salty or soapy water can cause the chip to fail. If your key fob has been exposed to water, remove and allow the battery to dry completely before replacing it. You can also clean the electronic component using isopropyl and electronic cleaner. Keyless entry systems are more secure than traditional systems, because it generates the code used to unlock your vehicle after every use. This means that even if hackers are able to intercept the signal it isn't possible for them to gain permanent access to your car. Transponders Fiat uses a crypto key transponder system which means the keys or transponders must be precoded with a secret code that is generated by the Body Control Module (BCM) before being “programmed” into the BCM. A key that is blank and is not programmed can't be programmed since the BCM must read and write its secret key onto the transponder before locking it. This process is called”cloning. These are brand new replacement outer cases OE SIP22 Transponder keys for Fiat 500. They come with a chip that opens the doors and also starts the car. Locksmiths will have to cut them to fit in your ignition.