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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 begin the car. There are many reasons why the fob won't work. This could be due to a dead coin-battery water damage, problems with the receiver modules, and interference.

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Dead Coin Battery

The most frequent reason why your 500 key fob will not function is due to a dead battery. Modern key fobs have a restricted operating range, and should be within only a few feet from the vehicle to function. If you're far from your vehicle and you press the keyfob button it will not respond and display the message "Key Fob Not Detected".

If this happens If this happens, replace the battery in the coin-cell (Part Number CR2032) with a new battery of a reputable brand such as Panasonic Duracell or Energizer. You can find them in your local hardware store or online.

After you've replaced the coin cell battery you can test it by standing next to your Fiat 500 and pressing the buttons. The parking lights should flash and the key fob will operate the lock and unlock switches.

If the fob's remote doesn't function after replacing the battery, it may have water damage that stops it from communicating with the receiver module in your car. Water damage can happen in a variety of ways, ranging from an accidental splash to submerging the fob in salt water at the beach. If you suspect that your fob has been exposed to water, you can place it in a bag of rice to draw out the moisture. If this fails, you'll require your fob to be changed by an auto locksmith or dealer.

Water Damage

While the fob has some rubber seals to keep water from the electronic chip inside the device, submerging it into the ocean or washing it in a machine could cause water damage. Saltwater is especially dangerous to the circuit board of the fob that can cause it to short out and eventually die. The fob getting wet is not an option however, if you drop it into the water in a cup or forget to remove it from your pants pocket before running the washing machine and you don't have a chance, don't give in.

First, remove the battery from the fob. Before replacing the battery clean the electronic chip using isopropyl or another similar product. Check the fob to verify if it's working. If the key doesn't function then it might need to be reset. This is usually handled by a dealer or professional auto locksmith.

If the key you have is older and is not programmed for your vehicle, you will need to replace it completely. This is a simple procedure which can be accomplished by a professional locksmith for automotive use. The locksmith will need to cut the key to match the ignition on your vehicle. They will also need to program the fob into the car's system. This is a cheap and quick process that can be completed the same day.

Receiver Module Issues

One of the most common reasons why your 500 key fob may stop functioning is that it's out of range. The remote has a range of 30 feet, which means if you are too far from your vehicle it will not respond to your commands. It is possible to solve this problem by moving the remote closer to your car until it responds.

If you've replaced your coin battery (commonly known as a "button" or "watch") and the fob won't work it could be due to an internal circuit board problem. Reprogramming the fob is usually the solution to this issue. The instructions are available for most vehicles on YouTube or in the owner's guide.

fiat key replacement may need to replace the metal clips that hold the coin battery in place. If they lose tension it can stop your coin battery from sitting properly and cause your remote to malfunction.

In rare instances, the fob can become out of the vehicle's sync because due to hardware or software issues. This could be a huge problem, but you can usually resolve this issue by visiting an auto locksmith to have them reprogram your fob for you. In some instances it may be necessary to reinstall the program in your body control module too.

Interference

In addition to a dead coin battery The key fob may not be receiving or transmitting the signal due to interference. This could occur if the key fob is close to radio transmitters (cell phones and radar detectors) or any other source of electromagnetic radiation. Other reasons why the key fob could not function may be a lack of connection to the buttons or damage to the internal chip, or water damage.

If the key fob suddenly stopped working, without notice and you've tried everything you can at home to solve it e.g. replacing the battery, reprogramming it and using the spare key fob, you may have a faulty receiver module on your 500. The receiver module, located beneath the dashboard, receives radio frequency signals from your key fob. It then converts them into electronic commands that the vehicle interprets.

There is a simple way to reset the 500's onboard system, including the keyfob. Disconnect the 12 volt battery for about 15 minutes, by removing the negative cable first then the positive cable. Reconnect the battery. This will clear out any remaining electrical charge and restart the car's computers. This could allow you to the key fob to function again. If the issue continues, you should consult an expert technician. They will be able to identify the root of any problems.