Reasons Your Fiat 500 Key Fob Won't Work

A key fob for Fiat 500 makes it easy to open doors and start your vehicle. There are many reasons the key fob might stop working. These include a dead battery, damaged receiver module, water damage issues, or interference.

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Dead Coin Battery

The most frequent reason why your 500 key fob doesn't function is due to a dead battery. Modern key fobs offer only a limited range of operation and must be within only a few inches from the vehicle in order to function. If you're far from your vehicle, and you press the key fob button, the car won't be able to respond, and will display the "Key Fob Not Detected" message in the instrument cluster.

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

After you've replaced the coin cell battery It is possible to test it by standing close to your Fiat 500 and pressing the buttons. The car will blink its parking lights, and the key fob should be able to operate the lock and unlock switches.

If your key fob still does not work after replacing the battery, there may be water damage that hinders it from interacting with the module in your vehicle. Water damage can occur in many ways, including an easy splash or submerging the key fob in saltwater at the beach. If you suspect that your fob has been exposed to water, put it in a rice bag to draw out the moisture. If this isn't working, you'll need to have your fob reset by an auto locksmith or dealer.

Water Damage

While the fob has some rubber seals to keep water out of the electronic chip inside, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater can cause the circuit board to become shorted and eventually die. It's not the best idea to get the fob wet but don't give up if you accidentally drop it in water or forget to take it out of your pocket.

Take the battery off first. Before replacing the battery clean the electronic chip with isopropyl or another similar product. Next test the fob to check if it functions. If the key doesn't function, it may have to be programmed again. This is usually handled by an auto locksmith or dealer.

If the key is more recent and hasn't been programmed to your car It is likely that it needs to be replaced completely. A professional automotive locksmith can do this job. The locksmith needs to cut the key to match the ignition in your vehicle. They will also need to program the fob into the car's system. This is a simple and cost-effective process that can be completed within the same day.

Receiver Module Issues

One of the most common reasons why your 500 key fob may stop functioning is because it's out of range. The remote has a maximum range of 30 feet, so in the event that you are far from your vehicle it will not respond to your commands. It's easy to remedy this by moving your remote closer to your vehicle until it responds.

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

It's possible that you need to replace the metal retaining clips that keep the coin battery. If they become loose, it can stop your coin battery from being properly seated, causing your remote to malfunction.

In rare instances, the fob may be out of connection with your vehicle as a result of hardware or software problems. You can fix this issue by visiting your local auto-locksmith or dealer to reprogram your key fob. In certain instances they may have to reinstall the software on your body control module too.

Interference

Interference can also cause the key fob to be unable to receive or transmit signals. This can happen when the key fob is near an electronic radio transmitter (cell phones and radar detectors) or any other source of electromagnetic radiation. The key fob could not function because of a problem with the buttons, water damage or damage to the internal chips.

If the key fob stopped working one day suddenly and you've tried every option at home to fix it e.g. You might have a damaged 500 receiver module after you've tried replacing the battery, reprogramming it, or using an alternative key fob. The receiver module, which is located under the dashboard, is able to pick up radio frequency signals from your key fob. It transforms the signals into electronic commands which are then interpreted by the vehicle.

There is a straightforward method to reset the 500's internal system, including the keyfob. Disconnect the battery for 15 minutes by taking off first the negative cable, then the positive cable. Then reconnect the battery. This will remove any remaining electricity and restart the car's computer system, which could help get your key fob working again. If the issue continues, you should consult a certified technician. They will be able to identify the exact cause of any problems.