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Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 allows you to easily open doors and start your car. However, there are a variety of reasons why the fob may stop functioning. This includes a dead coin-battery, water damage, problems with receiver modules, as well as interference.

This listing is for a NEW replacement Fiat Flip Key Remote - an exact replica of the Ilco brand that must be professionally programmed by a local locksmith (click here to search for a Locksmith Search). This remote includes trunk, lock and unlock buttons.

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Dead Coin Battery

A dead battery is probably the most common reason for your 500 key fob not functioning. Modern key fobs have a very limited operating range and should be within some feet of the car to operate. If you are not within your car and hit the keyfob, it will not respond and display the message "Key Fob Not Detected".

If this happens you need to replace the battery of your coin-cell (Part Number CR2032) by a new one of a reliable brand, like Panasonic Duracell or Energizer. They are typically available at your local hardware store or on the internet.

You can test the battery on your coin-cell by pressing the buttons while you are standing close to your Fiat 500. The car will blink its parking lights, and the key fob will operate the lock and unlock switches.

If the key fob won't function after replacing the battery, it may be damaged by water, which prevents it from connecting to the receiver module in your vehicle. Water damage can occur in a variety of ways, from small splashes to submerging your fob in salt water at the beach. If you suspect that your fob was exposed to water, try putting it in a dry rice bag to pull the moisture back out. If this doesn't work, your fob is likely to need to be reset by a professional auto locksmith or dealer.

Water Damage

While the fob has some rubber seals to keep water from the electronic chip inside and out of the ocean or washing it in a machine can cause water damage. Saltwater poses a particular risk to the circuit board of the fob that can cause it to short out and eventually die. The fob getting wet is not a good idea however, if you drop it in the water in a cup or do not remember to remove it from your pocket before you run the washer and you don't have a chance, don't give in.

First, remove the battery from the fob. Clean the electronic chip with isopropyl ethanol or a similar product and dry it thoroughly before replacing the battery. Then, test the fob to check if it functions. If the key still doesn't work, it might need to be reset. This is usually done by an auto locksmith or dealer.

If the key is a newer model and has not been programmed to your vehicle, it will likely need to be replaced completely. This is an easy process that can be completed by a professional locksmith for automotive use. The locksmith must cut the key to match the ignition on your vehicle. They'll also need to reprogram the fob for your vehicle's system. This is an affordable and quick process that can be completed within the same day.

Receiver Module Issues

The 500 key fob could stop working because it is out of range. https://www.g28carkeys.co.uk/fiat-car-key-replacements-near-me/ is of 30 feet. Therefore, should you be too far away from your vehicle it will not respond to your commands. This can be easily fixed by moving closer to your vehicle until it begins responding.

If you've replaced the coin battery (commonly known as"button" or "button" or "watch") and your fob doesn't function it could be due to an internal circuit board problem. Reprogramming the fob typically resolves this problem. You can find the instructions on how to do this for the majority of automobiles by searching YouTube or looking through the owner's manual.

It is possible to replace the metal clips that hold the coin batteries in the correct position. If they lose tension it can prevent the coin battery from being seated properly and cause the remote to malfunction.

In rare instances the fob might become desync'd with your vehicle because of software or hardware issues. This issue can be fixed by visiting your local dealer or auto-locksmith to reprogram your key fob. In certain instances the software may require reinstallation into your body control modules.

Interference

Interference can also cause the key fob to be unable to receive or transmit the signal. This can happen when the key fob is near a radio transmitter (cell phones or radar detectors) or another source of electromagnetic radiation. The key fob might not function due to a bad connection with the buttons or water damage, or damage to the internal chips.

If the key fob has failed to work one day without notice or after trying every option at home to resolve it e.g. replacing the battery, reprogramming it and using the spare key fob, you could have a faulty receiver module on your 500. The receiver module is situated under the dash and receives the radio frequency signals from the key fob. It converts the signals into electronic commands that are then interpreted by the vehicle.

Luckily, there is an easy method to reset all of the onboard systems in your 500 keys, including the key fob. Disconnect the battery for 15 minutes by taking off first the negative cable, then the positive cable. Reconnect the battery. This will eliminate any remaining electricity, and allow you to restart the computer of your car. This could help you get your key fob to work again. If the issue continues you should seek out an expert technician. They will be able to identify the root cause of your problems.