How to Repair Fiat 500 Keys There are a variety of reasons why your Fiat 500 key fob may cease to function. One of the most frequent is when the small "watch" battery that's inside it dies. This is a 3.3 volt lithium, CR2032, you can purchase almost anyplace for less than $3. When you need a replacement key for an older Fiat model, a locksmith is the person to contact. United Locksmith offers this service and offers all the tools and parts required. Keys On the outside a Fiat key might appear basic but inside the case is an electronic chip that communicates with your vehicle'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 standard equipment and technology from dealers to repair your Fiat key, regardless of whether the key is damaged or lost. A spare key can keep your vehicle operating in the event of an accident or lockout. We can supply you with a standard key or a remote fob. We use the best quality blanks that are available and offer quick turnaround so that you can get back on the road as quickly as possible. Some people prefer to visit a Fiat Dealership to get a new key. We can offer the service faster and more affordable. We can be there for you, saving you the cost of towing your vehicle to the dealer. This can also reduce the time it takes to wait which can range from a few days to 10 days. Remotes The remote controls on Fiat vehicles are similar to the keys, but they feature an IR (infrared) LED on the bottom. The LED sends an IR signal to the device that opens or starts the car when pressed. The signal is picked up by a microprocessor inside the key that converts it into a code which is then sent to the device. This process is known as "keyless entry". The more recent your vehicle is, the more likely you are to include a keyless entry system. The more advanced your car, the more features it will come with. This includes locking and unlocking your car at the a push of a button, opening the doors without touching the handle, and much more. The key fob comes with an integrated circuit chip that communicates with the immobiliser system in the car. The system will determine if the key is correct by checking a specific sequence of the transponder. If the chip isn't there, or if it has not been programmed with the correct immobiliser, the vehicle will not start. When the key fob is damaged, a locksmith will create a new one. The locksmith will also have to program the new key to sync with the immobiliser system of your car. You must be prepared to provide your locksmith details 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 one button. https://www.thekeylab.co.uk/fiat-car-keys/ is a growing feature in all types of cars and provides security and convenience to the use of your car. Examine your remote keyless entry system isn't working. The battery in the fob could be dead. If the battery has been drained replace it with a fresh one that is 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 protect the electronic chip from water. However, prolonged exposure to salty or soapy water could cause the chip to fail. If your key fob is exposed to water, remove the battery and let it dry completely before putting it back into. You can also clean the electronic chip using isopropyl alcohol or electronic cleaner. Keyless entry systems are more secure than conventional systems because it generates the code used to unlock your car after each use. This means that hackers won't be able to gain access to the vehicle even in the event that they intercept the signal. Transponders Fiat uses a crypto key transponder system which means the keys or transponders must be encoded with an encrypted code by the Body Control Module (BCM) before being "programmed" into the BCM. This is why a blank unwritten key is not able to be programmed because the BCM must read and write it's secret key to the transponder, then lock it. This is known as cloning. These are brand new replacement outer case SIP22 transponder keys for your fiat 500. They have a chip that opens the door and begins the vehicle. They must be professionally cut by a locksmith to match your ignition.