How to Repair Fiat 500 Keys There are several reasons why your Fiat 500 key fob may stop working One of the most frequent is that the tiny "watch" battery that's inside the device dies https//wwwthekeylabcouk/fiat-car-keys/ is an 33 voltage lithium, CR2032, you can buy just about anywhere for under 3 A locksmith is the ideal place to call when you require a replacement car key for the classic Fiat model United Locksmith can provide this service and also has the tools and spare 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 is not present, or is not properly programmed to the immobiliser, your car isn't able to 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 A spare key will keep your vehicle 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 we can find and provide a fast turnaround to ensure you are back on the road quickly Some customers prefer to visit a Fiat Dealership in order to obtain new keys We can offer the service faster and more affordable We can even come to you to save you the expense of towing your car to the dealer This can also cut out the waiting period which is often up to 10 days at a dealer Remotes Remote controls for Fiat cars look like the keys, but they have an IR infrared LED on the other end This LED transmits an electronic signal to the device, which opens or turns off the vehicle when pressed The microprocessor inside a key converts this signal into a code, which is then sent to the device This is referred to as "keyless entry" The more recent your vehicle is and the more likely it will be 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 the vehicle with a single press and opening the doors without having to hold the door handle and much more The key fob has an integrated circuit chip that communicates with the car's immobiliser system The system is able to determine whether the key is working by checking a certain sequence in the transponder The vehicle will not start in the event that the chip is not present or if it's not programmed to the correct immobiliser system If the key fob is damaged, a locksmith will make a replacement They'll also have to program the replacement key to sync with the immobiliser system of your car You should be prepared to provide your locksmith with information regarding your vehicle when they call Keyless Entry With a keyless entry feature on your Fiat 500 you can lock or unlock the vehicle with just a touch of one button This technology is becoming more common in cars of all kinds and ages as it provides convenience and security to your car's use Check to see if your remote keyless entry system isn't working The coin battery inside the fob might be dead If the battery has been drained replace it with a new one that has the same voltage, size 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 soapy water or salty water can cause the chip to fail If your key fob has been exposed to water, take it out and allow the battery to dry completely before replacing it You can also clean the electronic chip using isopropyl alcohol or an electronic cleaner While some may believe that keyless entry isn't as secure, the system is actually more secure than other systems because the code that unlocks your vehicle is rolled back after each use This means that hackers won't be able to gain permanent access to the vehicle even if they intercept the signal Transponders Fiat uses a crypto-key transponder system which means that the keys/transponders must be precoded by the Body Control Module before they are "programmed" within the BCM This is why a blank unwritten key cannot be programmed, as the BCM must read and write the secret key to the transponder amp; lock it This is referred to as the process of cloning These are new replacement outer case OE SIP22 transponder keys for your fiat 500 They have a chip inside that opens the doors and starts the car They must be professionally cut by a locksmith to match your ignition