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Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 is a handy way to unlock the doors and get started the car. However, there are a variety of reasons the fob could stop functioning. This could be due to a dead coin-battery water damage, receiver modules issues, and interference.

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Dead Coin Battery

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

If this occurs, replace the coin-cell battery (Part Number CR2032) by a new one from a reputable brand like Panasonic Duracell or Energizer. They are available at your local hardware store or online.

You can test the coin-cell battery by pressing the buttons while you're standing close to your Fiat 500. The car should 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 might be water damage that prevents it from interacting with the module inside your vehicle. Water damage can happen in a variety of ways, from a light splash to submerging the fob in salt water at the beach. If you think your fob was exposed to water, put it in a rice bag to draw out the moisture. If this doesn't work, you will need to have the fob changed by an auto locksmith or dealer.

Water Damage

While the fob comes with rubber seals that keep water out of the chip's electronic circuit, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater can be particularly harmful to the circuit board of the fob which causes it to short out and eventually die. It's not a good thing to let the fob get wet but don't give up in the event that you accidentally drop it in water or fail to take it out of your pocket.

First remove the battery from the fob. Before replacing the battery clean the electronic chip with isopropyl or another similar product. Next try the fob and check if it functions. If the key doesn't function it could need to be programmed again. This is usually handled by an auto locksmith or dealer.

If the key is a newer model and was not programmed to your vehicle it is likely to need to be replaced completely. This is a straightforward process that can be carried out by a professional locksmith for automotive use. The locksmith will need to cut the key to match the ignition on your vehicle. The locksmith will also have to reprogram your fob in the vehicle's system. This is a cheap and fast process that can be completed within the same day.

Receiver Module Issues

One of the most common reasons your 500 key fob won't be functioning is because it's out of range. The remote's range is of 30 feet, which means when you're too far from your vehicle it won't be able to respond to your commands. This can be fixed by moving closer to your vehicle until it begins responding.

If you've replaced the coin battery (commonly known as a "button" or "watch") and your fob still won't work it could be due to an internal circuit board issue. In most cases, reprogramming the fob will solve the issue. You can find directions on how to do this for most vehicles by searching YouTube or consulting the owner's manual.

It is sometimes necessary to replace the clips made of metal that hold the coin batteries in their place. If they lose tension, it could hinder the battery from being properly seated and can cause the remote to malfunction.

In rare instances, Replacement Fiat 500X Keys Nottingham the fob may be out of the vehicle's sync because of hardware or software problems. This could be a huge problem, but you can usually fix it by visiting an auto locksmith to reprogram your fob. In some instances it may be necessary to install the software again in your body control module as well.

Interference

Interference can also cause the key fob to not be able to receive or transmit an signal. This could occur if the keyfob's location is in close proximity to a radio transmitter, such as a cell phone or radar detector. The key fob may not function due to a poor connection to the buttons water damage or damage to the internal chips.

If the key fob has failed to work one day without notice, or after trying everything you can do at home to fix it e.g. You could have a malfunctioning 500 receiver module in the event that you've tried replacing the battery, reprogramming, and using an alternative key fob. The receiver module, which is located under the dashboard, receives radio frequency signals from your key fob. It converts the signals into electronic commands that are then interpreted by the vehicle.

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 disconnecting the negative cable first then the positive cable. Then reconnect the battery. This will remove any remaining electrical charge and restart the car's computers, which could help get your key fob working again. If the problem persists, you should consult an expert certified technician. They will be able diagnose the root cause of any problems.