Five Fiat Key Cover Lessons From The Pros How to Find a Fiat 500 Spare Key

Fiat's 500 is something of an icon since its relaunch in 2007. The company is now planning an additional attack against different powertrains, including a hybrid version.

Replacing the key fob battery on a Fiat 500 is straightforward and affordable. The Fiat main dealer will hand over the key in approximately 10 days.

Fault Diagnosis

The key fob houses an electronic chip that communicates with the Fiat immobiliser system to ensure that only authorized vehicles are able to start engines. If the transponder inside your key fob is damaged or damaged, it will not be connected to the immobiliser, which means that your car won't start.

It is possible to repair a key fob that has been broken, as long as the chip is not physically harmed. A professional locksmith can help with this issue, and they'll make use of dealer-standard technology to fix it quickly and efficiently.

It's possible to use an OBD scanner to check if your fob is still in communication with the receiver module. This is a quick and simple process that could give you a first indication of the issue. If the OBD scanner indicates that there is no communication between the transmitter and receiver modules, it may be necessary for the fob's transmitting module to be replaced. This can be a pricey option, and it's best left to an expert locksmith.

Dead Coin Battery

A dead coin battery is the most common reason for a key fob to not function. It's an easy fix that takes minutes. Make sure the key fob can be recognized by your vehicle. Press TheKeyLab "Lock" and "Unlock" buttons to check if they respond.

If the key fob is out of range, it might not respond at all or only intermittently. This could be an indication of a damaged circuit board. In this situation you'll need to check the manual of the owner for instructions on how to reprogram the key fob.

You can change the battery by pulling off the mechanical latch that is on the back of the fob (see the image below). Then, gently pry the edge of the battery holder away from the switch to take out the old coin-cell battery. Then, place a new # CR2032 3 volt batteries into the fob assembly, with the "+" side facing toward the rear cover of the key fob, and the "--" side facing downwards towards the rubber buttons.

Water Damage

The key fob isn't waterproof even though it's got rubber seals to prevent water from getting into the electronic chip. A splash of water from rain or a wash cycle is likely to be acceptable but submerging it fob in ocean or pool water is likely to damage it.

The key fob has to be reprogrammed if it is exposed to water. You can follow the steps in your owner’s manual, or bring it to an expert locksmith or Fiat dealer.


Another common reason a fob may stop working is that it's not in reach of your vehicle. The range of the fob's range is typically about 30 feet. If they're too far from your vehicle, it will not recognize them. The first step is to move closer to your car. If this fails, you may need to replace the key fob. There are instructions on how to replace the battery in a majority of vehicles either on YouTube or by consulting the owner's manual. If your key fob looks damaged and scratched, it's time to replace it.

Faulty Receiver Module

In more modern models of Fiat cars there is no need for a physical key to open or start the car. These cars use a remote control that transmits an encrypted wireless signal to the car in order to switch the engine on and off. Locksmiths can repair the broken key fob. You will save time and money by entrusting this job to professionals. They can also program the new key for your Fiat.

If you're getting an additional key for your Fiat vehicle, you'll need to provide the locksmith with details about the car over the phone. You will need to give the locksmith specific information about your car, such as 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 existing locks.

You must be aware that not all locksmiths can make replacement keys for Fiat vehicles. It is important to choose one with a good reputation and experience in this area. You can be assured that the key will work on your vehicle and you won't lose money.

Keys that are unpaired

If you have a key fob that isn't working, the most frequent reason is the battery is dead. The key fob is made of clips of metal that keep the button cell in place and complete the circuit, so when these are worn or damaged, it could lead to contact problems and a lack of power. Replace the battery with one of the same voltage, size and specification, or a spare.

If the key fob has been submerged in water, it is essential to dry it before re-inserting it. This can be accomplished using isopropyl or an electronic cleaner. It is also recommended that you remove the battery and clean the circuit board and replace it prior to replacing.

If you're not able to find a spare key your best option is to call the locksmith. A locksmith who is certified to reprogram Fiat transponder keys can do so without the need to see the original keys. This is a less costly and faster solution than waiting for a genuine Fiat key to arrive from Italy. A professional locksmith has all the tools and equipment to replace your key as swiftly as they can.