Reasons Your Fiat 500 Key Fob Won't Work

A key fob with the fiat 500 number is a convenient method to open the doors and start the car. There are many reasons why the fob may stop working. This includes a dead coin-battery or water damage, problems with the receiver modules, and interference.

This listing is for an NEW replacement fiat 500 replacement key 500 key fob (cool training) Fiat Flip Key Remote that appears similar to the Ilco brand. It has to be professionally programmed (click here to search for local locksmiths in the automotive industry). It includes lock, unlock, and trunk buttons.

Dead Coin Battery

The most common reason your 500 key fob will not function is due to a dead battery. Modern key fobs come with a limited operating range, and should be within some feet of the car to operate. If you are far from your vehicle and you press the keyfob button it will not respond and display the message "Key Fob Not Detected".

If this occurs you need to replace the battery of your coin-cell (Part Number CR2032) by a brand new one of a trusted brand like Panasonic Duracell or Energizer. You can find them at your local hardware store, or on the internet.

After you've changed the battery on the coin cell, you can test it by standing next to your Fiat 500 and pressing the buttons. The car will blink its parking lights, and the key fob should operate the lock and unlock buttons.

If your key fob isn't working even after replacing the battery, there may be water damage that is preventing it from communicating with the module inside your vehicle. Water damage can occur in a number of ways, from a light splash to submerging the fob into salt water at the beach. If you suspect your fob has been exposed to water, you can try placing it in a dry rice bag to draw the moisture out. If this doesn't work, you will need to have your fob changed by an auto locksmith or a dealer.

Water Damage

Water damage can occur when you immerse the fob in the ocean, or wash it in a washer. Saltwater can be particularly harmful to the circuit board of the fob, causing it to short out and eventually end up dying. It's not the best idea to submerge the fob in water however, but don't give it up when you accidentally drop it in water, or fail to remove it from your pants pocket.

First take the battery off the fob. Before replacing the battery clean the electronic chip with isopropyl or similar products. Next test the fob to verify if it is working. If the key doesn't function, it may need to be reprogrammed. This is usually handled by a professional or dealer auto locksmith.

If the key is more recent and has never been programmed to your car, it will likely need to be replaced completely. This is a straightforward process that can be handled by a professional automotive locksmith. The locksmith will require the key to be cut to match the car's ignition. The locksmith also needs to reprogram your fob into the car's system. This is a cheap and quick process that could be completed within the same day.

Receiver Module Issues

Your 500 key fob may not function because it's out of range. The remote usually has 30 feet of range or less, and if it's too far from your vehicle, it won't respond to your commands. It is possible to fix this by moving the remote closer to your vehicle until it responds.

If your fob does not work after replacing the coin battery, also known as a "button", "watch" or "button", it may be due to a malfunction on the internal circuit board. In the majority of cases, reprogramming your fob will fix the problem. You can find the instructions on how to do this for all automobiles by searching YouTube or reading the owner's manual.

It may be necessary to replace the clips made of metal that hold the coin batteries in place. If they lose tension it can prevent the battery from being seated properly, and this will cause the remote to malfunction.

In rare cases the fob might be out of sync with your vehicle because of software or hardware problems. You can fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In some instances, the software may also require reinstallation into your body control modules.

Interference

Interference can also cause the key fob to not receive or transmit the signal. This can happen when the key fob is near radio transmitters (cell phones, radar detectors) or another source of electromagnetic radiation. Other reasons why the key fob may not function may be a lack of connection to the buttons or the internal chip, or water damage.

If your key fob suddenly stopped working, or you have tried everything at home to resolve it (e.g. replacing the battery, reprogramming, and using the spare key fob, you could have a damaged receiver module on your 500. The receiver module, which is located under the dashboard, receives radio frequency signals from your key fob. It converts them to electronic commands that the vehicle interprets.

There's a simple method to reset the 500's on-board system, including the keyfob. Disconnect the battery 12 volt for about 15 minutes by removing the negative cable and then the positive cable. Then, reconnect the battery. This will clear out any residual electricity and restart the car's computer system, which can help get your key fob working again. If the problem persists you should seek out an expert technician. They can diagnose the exact cause of your problem.