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What to Do When Your Fiat 500 Key Fob Stops Working There are several options available when your Fiat 500 keyfob has stopped working. You might try replacing the battery, reprogramming it or seeking help from a locksmith. In the majority of cases, a dead coin battery is the main reason for an inoperable key fob. It is easy to replace it with a new battery. Keyless entry It is important to remember that while keyless entry is convenient, it can't substitute for a physical key. To start the car, you'll still need a keyfob with a functioning battery. If the battery of the key fob is damaged or dies it could cause problems with the remote. You'll need to replace the key in case it gets lost. The key fob's electronic chip contains a crypto or red key coding system that communicates with the vehicle's immobiliser unit to unlock and start it. It also transmits a wireless signal to the central locking system, which allows you to open the doors and trunk without the need to use your key. If the battery in the key fob is dead, it can no longer transmit an indication to the central locking system in the car or infotainment systems. The first step is to replace the battery with a fresh one that has the same size and voltage as the old one. Be sure that the clips holding it in place aren't loose, which can damage the internal circuit. Another common cause of dead key fobs is water damage. While the key fob is equipped with rubber seals, prolonged exposure to salty or soapy water could damage the electronics. If this happens, you should remove the battery from the key fob and clean it using isopropyl alcohol and paper towels. Ignition cylinder The ignition cylinder, also referred to as the key lock cylinder is a crucial car component that keeps your vehicle secure and safe. While fiat punto keys have keyless power buttons and push button and start systems but traditional ignition cylinders are still used on a wide range of vehicles. The ignition cylinder is a tumbler made of mechanical that your keys slide into. The car won't begin if the tumblers have worn out or have failed. The pins inside the cylinder are typically worn out. This can be indicated by your key being difficult to turn or not being able to turn the ignition. Some people have managed to repair worn-out cylinders using graphite or WD-40 but these solutions aren't permanent and will not solve the problem long-term. The best solution for the issue with your car is to replace the cylinder housing of the ignition. It's a fairly simple DIY project which can be completed in just a few easy steps. To prevent electrical shorts, disconnect and isolate your negative battery cable before beginning work. Also, review the repair manual of the factory for your particular vehicle. This will allow you to avoid any potential issues with the airbag or the Supplemental Reraint System. Be aware that removal of any component that could affect the SIR or airbag system could be required when replacing the cylinder. Key fob Fiat has made a comeback in the past few years and there are now many modern Fiats on the road. These cars come with key fobs, instead of traditional keys for cars. You can get a new key fob for Fiat by contacting an expert locksmith. You will receive a key fob, which works just as well as your original. This will give you the security you require, without having to worry should you lose the original key. You might have a remote fob in your Fiat that can open the door and begin the car. These key fobs have an electronic transponder that connects to the immobiliser of your vehicle. The key fob comes with a remote control which allows you to lock and unlock your vehicle. Key fobs can be programmed to work with different models, including older Fiat automobiles. A professional locksmith can assist you with your car in other ways other than simply replacing your key fob. They can, for example program a replacement key if the one you have is lost or stolen. This service can help you save money as it is cheaper than having to buy a replacement key from a dealership. In certain instances, they can come to you to cut and program the key right there and then. Remote The key fob that you have on your Fiat 500 is a crucial part of the vehicle's security system. It could be necessary to replace it if it fails to function. A locksmith can help you complete this procedure. You will be required to give the locksmith some details. First, you should provide the model and make of the vehicle. Also, you should provide them with the contact details of the owner of the car. There are several reasons that your key fob could not function properly. One of the most frequent is a dead coin battery. Replace the battery with one of the same size and voltage. It is essential to replace the battery because the battery that is depleted can harm the chip. Another reason your key fob could stop working is interference. It could be due to close objects, bad weather conditions, and transmitters that use the same radio frequency as your Fiat 500. You can try to resolve this problem by disconnecting the 12 Volt battery for a few minutes. Reconnect the battery in reverse, taking off the positive cable before the negative. If your Fiat 500 key fob stops working, the most effective solution is to have a replacement programmed. This can be done by a certified locksmith for cars. This will save you time and money.