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What to Do When Your Fiat 500 Key Fob Stops Working If your Fiat 500 key fob stopped functioning, you have a few options. fiat 500 key fob can replace the coin battery, reprogram it or get help from a locksmith. In most instances, a dead coin battery is the primary reason for the key fob's not working. It is easy to replace with a brand new battery. Keyless entry While keyless entry provides a great deal of convenience, it's important to keep in mind that it's not the same as the physical car key. In order to start the engine, you still need a key fob with a working battery. You may have problems with your remote in the event that the battery on your key fob is damaged or dead. You'll have to replace the key if it is lost. The chip in the key fob houses a red-key or crypto-key coding system that communicates with the vehicle's immobiliser to unlock and start. It also transmits wireless signals to your car's central lock system, allowing you to open doors and trunks without using your keys. If the battery in the key fob has gone out the signal it sends to the central locking system or the infotainment system of the car will be lost. The first step is to replace the battery with a new one that has the same size and voltage that the old one. Be sure that the clips holding the battery are not loose, as this could cause damage to the internal circuit. Water damage is another frequent cause of a malfunctioning or dead key fob. The rubber seals on the key fob could be damaged from prolonged exposure to soapy, or salty, water. If this happens, you should remove the battery from the key fob and clean it with isopropyl ethanol and paper towels. Ignition Cylinder The ignition cylinder, also known as the key lock cylinder, is a crucial car component that ensures your vehicle is safe and secure. Although modern cars come with a keyless power buttons and push button and start systems traditional ignition cylinders are still found on many road going vehicles. The ignition cylinder is the mechanical tumbler through which your key is inserted. The car won't start if the tumblers have worn out or have failed. The pins inside the cylinder are usually worn out. This could be evident by your key not being able to turn, or even not being able in the ignition. Some people have managed to finesse worn-out cylinders by using graphite or WD-40, however these methods are not long-lasting and will not resolve the issue in the long run. The best way to solve your car's problem is to replace the ignition cylinder housing. It's a fairly simple DIY project that can be done in a couple of easy steps. To avoid electrical shorts disconnect and isolate your negative battery cable prior to beginning the work. Also, consult the factory repair manual for the specific vehicle you own. This will help you avoid potential issues with the airbags or the Supplemental Restraint Systems. Be aware that the removal of components that could affect the SIR and airbag system may be required in the event of replacing the cylinder. Key fob Fiat has seen a resurgence in recent times and there are a variety of newer Fiat cars on the road. They are equipped with key fobs instead of traditional car keys. You can purchase a new key fob for Fiat by calling an expert locksmith. They will supply you with the same key fob exactly like the original. This will provide you with the security that you need without worrying about losing your original key. You might have a remote fob in your Fiat that will unlock the door and start the car. These types of key fobs contain a transponder chip that communicates with the immobiliser system of your car. The key fob comes with an electronic remote that allows you to lock and unlock your vehicle. These key fobs can be programmed to work with a variety of models that include older Fiat cars. In addition to repairing the fob for your key, a professional locksmith can assist you with other aspects of your car. For example, they can create a new key for you in the event that your key has been stolen or lost. This service can save you money, as it's cheaper than buying an additional key from a dealership. In some instances, they can even come to your home to cut and program your new key in a matter of minutes. Remote The key fob in your Fiat 500 is a crucial element of the car's security system. If it stops working then you may have to replace it. Locksmiths can handle this process. You will have to give the locksmith the following information. The first is to give them the car's model and make. You should also provide the contact information of the owner. There are a variety of reasons that your key fob might stop working. A dead battery for the coin is one of the most common causes. Replace the battery with one of the same voltage and size. It is crucial to replace the battery since an old one could damage the chip. Another reason why your key fob may stop working is interference. This could be caused by nearby objects, poor weather conditions, or transmitters that use the same frequency as your Fiat 500. This problem can be resolved by disconnecting the battery for a couple of minutes. Then, reconnect the battery in reverse order, removing the negative cable prior to the positive. If your Fiat 500 key fob stops functioning, the best option is to have a replacement programmed. A certified locksmith for cars can do this for you. This will save you time and money.