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How to Repair Fiat 500 Keys There are a variety of reasons why your Fiat 500 key fob may not function properly. One of the most common is that the tiny “watch” battery inside it dies. It's an 3.3 Volt lithium, CR2032, which you can buy just about anyplace for less than $3. If you require a new key for an older Fiat model locksmith is the right person to contact. United Locksmith can provide this service and will have the tools and replacement parts required. Keys Fiat keys may look simple however inside is a chip that communicates with the immobiliser system of your car. If this chip is not present or programmed to the immobiliser system correctly then your vehicle will not start. Luckily, Car Keys Solutions are able to provide dealer-standard technology and equipment that will ensure your Fiat key is repaired, even when it has been damaged or is lost. A spare key will keep your vehicle running in case of an accident or lockout. No matter if you need a standard blank or remote fob, we can help. We only use the finest blanks that are available and offer an immediate turnaround time so that you can get back on the road quickly. Some people prefer to visit Fiat Dealerships to obtain a new key. We can provide a quicker and cheaper service. You'll also save the towing charges of bringing your car to and from the dealership as we can come to you. This can reduce the time it takes to wait that can be up to 10 days. Remotes The remote controls on Fiat vehicles are like keys, however they come with an IR LED (infrared). The LED sends signals to the device that opens or turns off the car when it is pressed. The microprocessor inside a key converts the signal into a code, which is then sent to the device. This is also known as “keyless entry”. The more modern your vehicle and the more likely you are to have a keyless entry feature. The more recent your car and the more features you'll likely get with it. This includes locking and unlocking your car with just one touch, opening the doors without touching the handle, and much more. The key fob has an integrated circuit chip that connects to the vehicle's immobiliser system. The system determines whether the key is in fact correct by checking a certain sequence within the transponder. The vehicle won't start in the event of a chip being missing or if it's not programmed to the right immobiliser system. G28 can repair the key fob if it's damaged. They'll also have to program the new key to sync with the car's immobiliser system. It is recommended to give your locksmith information about your vehicle when they call. Keyless Entry If you have a keyless entry system on your Fiat 500, you can lock and unlock the vehicle at any time by pressing of a button. This technology is becoming more common in all cars of all types and ages as it provides security and convenience to the use of your vehicle. Examine your remote keyless entry system isn't working. The coin battery inside the fob may be dead. Replace the battery with a newer one with the same voltage size, type, and capacity as the original if it's drained. You should also make sure that the battery's contacts are free of dust or corrosion. The rubber seals on the key fob shield the chip from water. However prolonged exposure to soapy water or salty water may cause the chip to fail. If your key fob is exposed to water, you must remove the battery and allow it to dry completely before putting it back in. You can also clean the electronic chip by using isopropyl and 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 to gain access to your vehicle even if they intercept the signal. Transponders Fiat employs 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” by the BCM. This is the reason a blank unwritten key is not able to be programmed, as the BCM has to read & write it's secret key to the transponder and then lock it. This is known as the process of cloning. These are 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. They will need to be professionally cut by a locksmith to fit your ignition.