How to Find a Fiat 500 Spare Key

Fiat's iconic 500 has become an iconic vehicle since its relaunch in 2007. The company has now kicked into a larger offensive toward different engines with a mild-hybrid version.

Replacing the battery in the key fob on a Fiat 500 is straightforward and cost-effective. The Fiat main dealer will supply the key in 10 days.

Diagnostics of a fault

The key fob contains an electronic chip that communicates with Fiat's immobiliser system to ensure that only authorized cars can start the engine. If the transponder chip inside the key fob is damaged, it won't be able to connect to the immobiliser unit, and this means that your car won't start.

It is possible to repair the key fob of a person who has been damaged, as long that the chip isn't physically damaged. A professional locksmith will employ dealer-standard technologies to repair it quickly.

It is possible to use an OBD scanner to determine whether your device is in communication with the receiver module. This is a quick and easy process that can give you a first indication of the problem. If the OBD scanner indicates that there is no communication between the transmitter and receiver modules, it may be necessary for the fob's transmitter module to be replaced. This is an expensive option and should be left to a locksmith.

Dead Coin Battery

The most frequent cause of a key fob not working is a dead battery. This is a simple fix that only takes a few minutes. Make sure that the key fob is recognized by your vehicle. Press the "Lock" and "Unlock" buttons to check whether they respond.

The key fob could not work at all, or perhaps only intermittently, in the event that it is out of range. This could be a sign that the circuit board in the key fob has gone out of date. You'll need to refer to the owner's manual to find out on how you can reprogram the keyfob in this case.

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 release the old coin-cell battery. Then, place a new CR2032 3 volt batteries into the fob holder with the "+" side facing toward the rear cover of the key fob with the "+" side facing downwards toward the buttons made of rubber.

Water Damage

The key fob isn't waterproof, even though it has rubber seals to keep water from entering the electronic chip. The key fob will likely be able to handle the rain or water from a washing cycle, but submerging it in pools or ocean waters is not recommended.

If the key fob is exposed to water and ceases to function it must be reprogrammed. You can follow the steps in your owner’s manual, or go to a professional locksmith or Fiat dealer.

A fob that's out of range may not function. The range of the fob's range is usually around 30 feet. If they are too far from the car, then it might not recognize the fob. The first step is to get closer to your vehicle. If you're not able to get it working, the key fob battery might require replacement. There are instructions on how to replace the battery in all vehicles on YouTube or fiat 500 electric Key by reading the owner's guide. This is a great time to think about buying a new key fob if the one you have is beginning to look worn and scratched.

Faulty Receiver Module