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How to Find a Fiat 500 Spare Key Fiat's classic Fiat 500 has become an icon since its relaunched in 2007. The company is now launching an even bigger attack on different powertrains by launching a mild hybrid version. Replacing the battery for the key fob on the Fiat 500 is straightforward and affordable. It takes approximately 10 days for the key to be delivered from the Fiat main dealer. Diagnosis of a Fault The key fob houses an electronic chip that communicates with Fiat's immobiliser system to ensure that only authorized vehicles are able to start engines. If the transponder chip inside the key fob is damaged, it will not be able to connect to the immobiliser unit which means that your car won't be able to start. The good thing is that it's possible to repair a damaged key fob, provided the chip isn't physically damaged. A professional locksmith can help with this issue, and they'll make use of dealer-standard technology to fix it quickly and efficiently. By using an OBD scanner, it is possible to verify if the fob is still communicating with the receiver module. This is a fast and simple process that could provide a first indication of the problem. If the OBD scan tool indicates that communication between the transmitter and receiver modules is not happening It may be necessary to replace the fob's transmitter. This is an expensive option and should be left to locksmiths. key for fiat 500 for a key fob that isn't working is a dead coin battery. It's an easy fix that can be completed in just a few minutes. First, make sure that the key fob is in the range of your vehicle. Then, try pressing the “Lock” or “Unlock” button to check if it responds. The key fob might not function at all, or only intermittently, if it is out of range. This could be an indication of a defective circuit board. In this scenario you'll have to consult the manual of your owner for instructions on how to reprogram the key fob. The mechanical latch can be removed from the back of the key fob. (See the image below). Then, gently pry the edge of the battery holder away from the switch to take out the old battery. Put a brand new #CR2032 3-volt battery into the fob with the “+ side” facing the rear cover and the “– side” facing downwards towards the buttons made of rubber. Water Damage The key fob is not waterproof even though it has rubber seals that stop water from getting into the electronic chip. A splash of water from rain or a wash cycle is likely to be okay but submerging the key fob in ocean or pool water is likely to cause damage. If the key fob is exposed to water and fails to function it must be reset. You can follow the directions in your owner’s manual, or go to a professional locksmith or Fiat dealer. A fob that's out of range could stop working. The range of the fob's range is typically around 30 feet. If they're too far away from your car, it may not recognize the fob. Start by getting closer to your vehicle. If this doesn't work, you may need to replace the key fob. You can find information on how to replace the battery in a majority of vehicles on YouTube or by reading the owner's manual. This is the perfect time to think about getting a new key fob if yours is beginning to look worn and scratched. Faulty Receiver Module In the more modern versions of Fiat cars it is not necessary to have a physical key to open or start the car. These cars use a key fob that sends an electrical signal to the car, allowing it to turn off and turn on the engine. If you've lost your key fob, a locksmith is able to replace it for you. You can save yourself time and money by delegating this job to professionals. They can also program the new key for your Fiat. When you are getting an extra key for your Fiat, you will need to provide the locksmith with some information about your car on the phone. You'll need to provide the locksmith details regarding your car, including the year it was produced and the model. This is essential since the locksmith will require this information to make sure that the new key will work with the locks in place. Not all locksmiths can make replacement keys for Fiat cars. Choose a locksmith who has an established track record and experience in the field. This will allow you to be certain that the key will work with your car and you won't waste money. Keys that are not paired If you have a key fob that has stopped functioning, the main reason is an unresponsive coin battery. The key fob comes with clips of metal that keep the button cell in place and complete the circuit, so if they become worn or damaged, it could result in contact issues and the loss of power. Replace the battery by purchasing a new one with the same voltage, size and specification, or use a spare. If the key fob has been submerged in water, it is essential to dry it before inserting it back into the device. This can be accomplished by using isopropyl or electronic cleaner. It is also recommended to remove the battery, clean the circuit board and replace it before replacing. If you're unable to find a spare key, the best choice is to contact locksmith. A locksmith who is experienced can reprogram a Fiat transponder key, without needing to see the original keys. This is a speedier and cheaper solution than waiting for an original Fiat key from Italy to arrive. A professional locksmith has all the tools and equipment needed to replace your keys as quickly as is possible.