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8 Tips To Enhance Your Fiat Key Cover Game
How to Find a Fiat 500 Spare Key

Fiat's iconic Fiat 500 has become a cult classic since its relaunched in 2007. The company is now launching an aggressive campaign to other powertrains by launching a mild hybrid version.

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

Fault Diagnosis

The key fob is equipped with an electronic chip which communicates with your Fiat's immobiliser system to ensure that only authorised vehicles can start the engine. If the transponder chip within your key fob is damaged, it will not be able to connect to the immobiliser unit, which means that your car won't start.


The good news is that it's feasible to repair a damaged key fob, as long as the chip is not physically damaged. A professional locksmith will use standard technologies from dealers to repair it swiftly.

With an OBD scanner, it is possible to verify if the fob is still communicating with the receiver module. It's a simple process and can provide first indications of where the issue is. If the OBD scanner shows that there is no communication between the receiver and transmitter modules, it may be required for the fob's transceiver module to be replaced. This is a costly option and should be left to locksmiths.

Dead Coin Battery

The most common cause of an unresponsive key fob is a dead battery. This is a simple fix that only takes just a few minutes. Check that the key fob is recognized by your vehicle. Press the "Lock" and "Unlock" buttons to determine whether they respond.

The key fob might not work at all, or only intermittently, if out of range. This could be a sign that the circuit board inside the key fob has gone out of date. You'll need to refer to the owner's manual to find out on how to reprogram the keyfob in this situation.

You can change the battery by removing the mechanical latch on the back of the fob (see the image below). Then, gently pull the edge of battery holder away from the switch to remove the old coin-cell battery. Insert a new #CR2032 3-volt battery into the fob with the "+ side" facing to the rear cover, and the " side" facing downwards towards the buttons made of rubber.

Water Damage

While the key fob is fitted with rubber seals that keep water from the chip, it is not waterproof. A splash of rain or a wash cycle is likely to be fine 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 will need to be reprogrammed. You can follow the instructions in the owner's guideline, or visit a professional locksmith or Fiat dealer.

Another reason that a fob may stop working is that it's out of distance from your car. Key fobs usually have a range of approximately 30 feet and if they're far from the car, it won't recognize them. For starters, try moving closer to your car. If it doesn't work, the battery for your key fob may require replacement. There are battery replacement instructions for a variety of automobiles on YouTube or in the owner's manual. This is a great time to think about buying a new key fob if the one you have is beginning to look worn and damaged.

Faulty Receiver Module

Fiat's more modern models do not require the use of a physical key to start or open the car. replacement key fiat 500 have keys that transmit an electrical signal to the car that turns on and off the engine. Locksmiths can fix the broken keyfob. You will save time and money by delegating this task to professionals. They can also program the new key for your Fiat.

When you are getting an extra key for your Fiat vehicle, you'll have to provide the locksmith with some details about the car over the phone. For instance, you'll have to provide the year of production of your car, along with the name of the model. This is important as locksmiths require it to ensure that the new key is compatible with the existing locks.

You will need to know that not all locksmiths are able create replacement keys for Fiat vehicles. It is important to choose one that has a good reputation and experience in this particular field. This way, you can be certain that the new key will work with your vehicle and you won't be wasting money.

Unpaired Key

The most common reason for a key fob not functioning is a dead coin-cell battery. The key fob has metallic clips that hold the battery in place and complete the circuit. When they become worn or loose, it can cause contact problems and no 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's important to dry it out before inserting it back into the device. Utilizing isopropyl alcohol or an electronic cleaner is a good method to accomplish this. It is also recommended that you remove the battery, clean the circuit board and replace it prior to replacing.

Contacting a locksmith is the best solution if you're unable to find an alternative. A locksmith who is certified to reprogram Fiat transponder keys can do this without needing to look at the original keys. This is a speedier and cheaper solution than waiting for an original Fiat key from Italy to arrive. A professional locksmith will have the tools and equipment necessary to complete the replacement as quickly as is possible.