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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. However, there are numerous reasons the fob could stop working. This could be due to a dead coin battery or damage to the receiver module, problems, and interference.

This listing is for an NEW replacement fiat spare key Flip Key Remote that appears similar to the Ilco brand. It has to be professionally programmed (click here to find local automotive locksmiths). This remote includes lock, unlock and trunk buttons.

Dead Coin Battery

The most frequent reason that your 500 key fob will not function is due to the battery is dead. Modern key fobs have an operating range that is limited and must be within just a few inches of the vehicle to function. If you are further away from your vehicle and you press the keyfob button it will not respond, and display the message "Key Fob Not Detected".

If this happens, simply replace the battery of your coin cell (Part number CR2032) with a new one from a reputable manufacturer such as Panasonic, Duracell, or Energizer. They are usually available at your local hardware store or online.

After you've replaced the battery in the coin cell You can test it by standing near your Fiat 500 and pressing the buttons. The parking lights should blink and the key fob should operate the lock and unlock switches.

If your key fob still does not work after replacing the battery, there could be water damage that prevents it from interacting with the module in your vehicle. Water damage can occur in a variety of ways, such as an easy splash or submerging your key fob in saltwater at the beach. If you believe your fob was 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 replaced by an auto locksmith or a dealer.

Water Damage

While the fob comes with 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 cease to function. In the event that you let your fob get wet, it's not an ideal idea but if you drop it into a glass of water or don't remember to take it out of your pants pocket before running the washing machine and you don't have a chance, don't give in.

Take the battery off first. Before replacing the battery clean the electronic chip with isopropyl or a similar product. Next, test the fob to check if it functions. If the key isn't working, it may have to be reset. This is typically done by a professional or dealer auto locksmith.

If the key is a newer model and has not been programmed to your car, it will likely need to be replaced completely. A professional locksmith in the automotive industry can carry out this simple task. The locksmith needs to cut the key to match the ignition of your vehicle. They'll also have to reprogram the fob for your car's system. This is a cheap and quick procedure that can be completed on the same day.

Receiver Module Issues

One of the simplest reasons why your 500 key fob might stop working is because it's out of range. The remote has a range of 30 feet. Therefore, should you be too far from your vehicle it will not respond to your commands. It can be solved by moving closer to your vehicle until it starts responding.

If your fob does not work after replacing the battery inside the coin, which is also called a "button", "watch" or "button" it could be due to a problem with the circuit board inside. In most cases, reprogramming the fob will fix the problem. You can find the instructions for most vehicles on YouTube or in the owner's guide.

It could be necessary to replace the metal clips that hold the coin batteries in their place. If they lose tension it can prevent your coin battery from being properly seated and cause your remote to malfunction.

In rare cases the fob might be out of connection with your vehicle as a result of software or hardware problems. It is possible to fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In some cases it is possible that the software will require reinstallation to your body control modules.

Interference

Interference can also cause the key fob not to receive or transmit the signal. This could happen when the keyfob is in close proximity to a radio transmitter such as a cell phone or radar detector. Other reasons why the key fob might not function include a poor connection to the buttons or the internal chip or water damage.

If the key fob has failed to work one day out of the blue or even after trying everything you can do at home to resolve it e.g. replacing the battery, reprogramming, and using the spare key fob, you might have a malfunctioning receiver module on your 500. The receiver module, located beneath the dashboard, detects radio frequency signals from your key fob. It converts the signals into electronic commands, which are then read by the vehicle.

There's a quick and easy way to reset the 500's on-board system, including the keyfob. Disconnect the battery for 15 minutes by removing first the negative cable and then the positive cable. Then, reconnect the battery. This will erase any remaining electricity, and restart the car's computer. This will help you get your key fob to work again. If the problem persists, you should consult an expert technician. They will be able to identify the exact cause of issues.