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How to Repair Fiat 500 Keys There are several reasons why your Fiat 500 key fob may stop working. The tiny “watch” inside the key FOB is often dead. This is a 3.3 voltage lithium, CR2032, which you can purchase almost anyplace for less than $3. When you need a replacement key for an older Fiat model locksmith is the person to call. United Locksmith offers this service and offers all the tools and parts required. Keys Fiat keys might appear simple however inside is a chip that communicates with the immobiliser system of your vehicle. If the chip isn't present, or is not properly programmed to the immobiliser, your car will not be able to start. Luckily Car Keys Solutions are able to offer standard technology and equipment to ensure that your Fiat key can be repaired, even if it has suffered damage or has been lost. A spare key will keep your vehicle operating in the event of an accident or lockout. We can provide you with a standard key or a remote fob. We use the best quality blanks and provide an immediate turnaround time so that you are back on the road as quickly as possible. www.thekeylab.co.uk decide to go to an Fiat Dealership to purchase a new key. We can offer a quicker and cheaper service. Additionally, you will save the towing costs of getting your vehicle from and to the dealership because we can come to you. This will also reduce the waiting time, which can last up to 10 days at a dealer. Remotes The remote controls for Fiat vehicles look similar to the keys themselves, with the exception that they have an IR (infrared) LED at the end. The LED transmits an electronic signal to the device which can open or shut down the vehicle when it is pressed. The signal is picked up by a microprocessor located in the key, which transforms it to a code that is then transmitted to the device. This is referred to as “keyless entry”. The more recent your car is, the more likely it is that you have keysless entry. The more advanced your car is, the more features it will come with. This includes everything from locking and unlocking the car using a button to unlocking the doors without having to actually hold the door handle and more. The key fob is equipped with an integrated circuit chip that communicates with 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 isn't programmed to the right immobiliser system. If the key fob is damaged, a locksmith is able to create a replacement. The locksmith will also need to program the new key to connect up with the immobiliser of the car. You should be prepared to provide your locksmith with information regarding your vehicle when they call. Keyless Entry With the keyless entry option on your Fiat 500 you can lock or unlock the car at the touch of the button. This technology is increasingly common in all kinds of vehicles that adds convenience and security to the operation of your car. Check to see if the remote keyless entry system isn't working. The coin battery inside the fob could be dead. If the battery has been drained replace it with a new one with the same voltage, size and type as the original. It is also important to ensure that the battery's contacts are free of corrosion or dust. The rubber seals on the key fob guard the chip from water. However, prolonged exposure to soapy water or salty water could cause the chip to fail. If your key fob has been exposed to water, you must remove the battery and let it dry completely before putting it back into. You can also clean the electronic component using isopropyl and electronic cleaner. Keyless entry systems are more secure than the traditional systems, as it rolls up the code that is used to unlock your car after every use. This means that even if hackers do intercept the signal that they receive, they will not be able to gain permanent access to your vehicle. Transponders Fiat utilizes a crypto key transponder, which means that keys/transponders must 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 is not able to be programmed, as the BCM must read and write its secret key to the transponder, then lock it. This is referred to as cloning. These are brand new replacement outer case OE SIP22 transponder keys to your Fiat 500. They feature a chip which opens the door and starts the vehicle. Locksmiths will need to cut them to fit in your ignition.