Reasons Your Fiat 500 Key Fob Won't Work

A Fiat 500 key fob makes it easy to open doors and start your car. There are a myriad of reasons the fob could stop working. These include a dead battery, damage to the receiver module, water problems, and interference.

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Dead Coin Battery

The most common reason the 500 key fob won't work is an inactive battery. Modern key fobs only have limited operating range and must be within a few inches of your vehicle to function. If you're not close to your vehicle and press the key fob button the car will not respond, and will display an "Key Fob Not Detected" message in the instrument cluster.

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

You can test the battery on your coin-cell by pressing the buttons while you're standing close to your fiat punto car key 500. The parking lights should light up and the key fob will operate the lock and unlock switches.

If the key fob won't work after replacing the battery, it might have water damage that stops it from connecting to the receiver module in your car. Water damage can occur in many ways, such as simply splashing or submerging the key fob saltwater at the beach. If you suspect that your fob has been exposed to water, place it in a rice bag to draw out the moisture. If this doesn't work, you will require your fob to be reprogrammed either by an auto locksmith or dealer.

Water Damage

The fob does have rubber seals that keep water from the chip's electronic circuit, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater poses a particular risk to the fob's circuit board which causes it to short out and eventually die. It's not a good idea to submerge the fob in water, but don't give it up in the event that you accidentally drop it in water or forget to remove it from your pocket.

Remove the battery first. Clean the electronic chip using isopropyl ethanol or a similar product and then dry it thoroughly before replacing the battery. Next check the fob to see if it works. If the key still doesn't work, it may need to be reset. This is typically handled by a dealer or professional auto locksmith.

If the key is a newer model and has never been programmed to your car It will most likely need to be replaced completely. This is a straightforward process which can be accomplished by a professional automotive locksmith. The locksmith will have to cut the key to match the ignition of your car. They'll also need to reprogram the fob for your car's system. This is a cheap and fast process that can be completed the same day.

Receiver Module Issues

The 500 key fob could be inoperable because it's out of range. The remote has a maximum range of 30 feet, which means if you are too far away from your vehicle, it won't respond to your commands. This can be easily fixed by moving it closer to your vehicle until it starts responding.

If you've replaced your coin battery (commonly called a "button" or "watch") and the fob won't work it could be due to an internal circuit board issue. Reprogramming the fob usually resolves this issue. You can find directions on how to do this for most vehicles by searching YouTube or looking through the owner's manual.

It is possible to replace the metal retaining clips that keep the coin battery in place. If they lose tension, they could stop the battery from being properly seated and can cause the remote to malfunction.

In rare instances the fob could be desync'd with your vehicle due to software issues or hardware issues. You can fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In some cases, they may need to reinstall the software on your body control module, as well.

Interference

In addition to a dead battery on a coin, the key fob may not be able to receive or transmit the signal due to interference. This is possible when the key fob is close to the radio transmitter (cell phones or radar detectors) or another source of electromagnetic radiation. Other reasons why the key fob might not function may be a lack of connection to the buttons or damage to the internal chip, or water damage.

If the key fob failed to work one day in the middle of the night and you've tried every option at home to resolve it e.g. battery replacement fiat panda replacement key Fiorino keys nottingham (utahsyardsale.com), reprogramming and using the spare key fob, it could have a damaged receiver module on your 500. The receiver module, located beneath the dashboard, is able to pick up radio frequency signals from your key fob. It converts them to electronic commands that the vehicle interprets.

There is a straightforward method to reset the 500's internal system, including the keyfob. Disconnect the 12 volt battery for about 15 minutes by disconnecting the negative cable first then the positive cable. Then, reconnect the battery. This will eliminate any remaining electricity and then restart the car's computers, which can help get your key fob working again. If the issue persists you should speak with an expert technician. They can determine the root of your problems.