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How to Find a Fiat 500 Spare Key Fiat's classic 500 has evolved into an icon since its relaunch in 2007. The company has now kicked off a larger campaign towards different powertrains by launching a mild-hybrid version. Replacing the key fob's battery on a Fiat 500 is straightforward and cost-effective. It takes around 10 days for the key to be received from the Fiat main dealer. Diagnostics of a fault The key fob contains an electronic chip that communicates with your Fiat's immobiliser system to ensure that only authorized cars can start the engine. If the transponder chip within the key fob is damaged, it won't be able to link up to the immobiliser unit, and this means that your car won't start. It is possible to repair keys that have been broken, as long that the chip has not been physically harmed. A professional locksmith will utilize the same technology used by dealers to repair it swiftly. It is possible to use an OBD scanner to check if your fob is still communicating with the receiver module. This is a simple procedure and provides first indications of the source of the issue. If the OBD scan tool shows that communication between the transmitter and receiver modules is not happening it is possible to replace the fob's transmitter module. This is an expensive option and should be left to locksmiths. Dead Coin Battery A dead battery for the coin is the most common reason for a key fob to not function. This is a simple fix that only takes only a few minutes. First, ensure that the key fob is within range of your vehicle. Then, try pressing the “Lock” or “Unlock” button to see if it responds. The key fob might not work at all, or perhaps only occasionally, if it's out of range. This could also be an indication that the circuit board in the key fob has gone out of date. You'll need to consult your owner's guide for instructions on how you can reprogram the keyfob in this case. You can change the battery by taking off the mechanical latch on the back of the fob (see the image below). Then, gently remove the the battery holder near the switch. Remove the old coin cell battery. Then, insert a new 3 volt battery # CR2032 into the fob assembly, with the “+” side facing toward the rear cover of the key fob and the “+” side facing downwards towards the buttons made of rubber. Water Damage The key fob isn't waterproof, even though it has rubber seals that stop water from entering the electronic chip. A splash of water from rain or a wash cycle is likely to be okay but submerging the key fob in pool or ocean water could cause damage to it. The key fob needs to be reset if it is exposed to water. Follow the steps in your owner’s manual, or go to an experienced locksmith or Fiat dealer. Another common reason a fob may stop working is because it's out of distance from your car. The range of the key fob is typically around 30 feet. If they're too far from the car, then it will not recognize the fob. The first thing to try is to get closer to your vehicle. If you're not able to get it working, the battery for your key fob may require replacement. You can find battery replacement instructions for a variety of automobiles on YouTube or in the owner's manual. If your key fob appears damaged and scratched, it's time to replace it. Faulty Receiver Module Modern Fiat models do not require an actual key to start or open the car. The cars have a remote control that transmits an encrypted wireless signal to the car to turn the engine off and on. Locksmiths can repair the damaged keyfob. You can leave this task to the professionals and save time and money. They can also program the new key for your Fiat. You will need to provide the locksmith with some information over the phone when you want a spare Fiat key. For instance, you'll be required to give the year of manufacture of your car and the name of the model. This is essential as the locksmith will require this information to make sure that the new key works with the locks in place. Not all locksmiths are able to make replacement keys for Fiat cars. Find a locksmith that has an excellent track record and experience in the field. The Keylab can be sure that the new key will work with your vehicle and you won't be wasting money. Keys that are unpaired The most common reason for a key fob not working is a dead coin-cell battery. The key fob comes with clips made of metal that hold the button cell in place and complete the circuit in the event that they wear out or loose it can lead to contact problems and a lack of power. Replace the battery with one with the same size, voltage and specifications, or a spare. If the key fob has been submerged in water, it is vital to dry it before inserting it again. Utilizing isopropyl alcohol or an electronic cleaner is a suitable method of doing this. It is also advisable to remove the battery and clean the circuit board prior to replacing it. If you're unable to locate a spare key, your best bet is to contact the locksmith. A locksmith who is experienced can reprogram a Fiat transponder key, without needing to look up the original keys. This is a much faster and cheaper option instead of waiting for an original Fiat key from Italy to arrive. A professional locksmith is equipped with all the tools and equipment to replace your key as fast as they can.