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Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 makes it simple to open doors and start your vehicle. However, there are a variety of reasons why the key fob might stop functioning. This could be due to a dead battery or water damage, problems with the receiver modules, and interference.

This listing is for an NEW replacement fiat 500x key fob Flip Key Remote - like the Ilco brand that needs to be professionally programmed by a local automotive locksmith (click here to search for a Locksmith Search). It includes trunk, lock and unlock buttons.

Dead Coin Battery

A dead battery is the most common reason for your 500 key fob being inoperative. 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 are far from your car and hit the keyfob, it won't respond and display the message "Key Fob Not Detected".

If this happens, replace the battery of your coin cell (Part number CR2032) with a fresh one from a reputable manufacturer like Panasonic, Duracell, or Energizer. You can find them at your local hardware store or on the internet.

After you've replaced the battery in the coin cell, you can test it by standing in front of your Fiat 500 and pressing the buttons. The car will blink its parking lights, and the key fob should operate the lock and unlock buttons.

If your key fob still doesn't work even after replacing the battery, there may be water damage that prevents it from connecting to the module inside your vehicle. Water damage can occur in a variety of ways, such as simply splashing or submerging your key fob in saltwater at the beach. If you think your fob was exposed to water, put it in a bag of rice to draw out the moisture. If that doesn't work, your fob is likely to need to be reprogrammed by a professional auto locksmith or dealer.

Water Damage

Although the fob is equipped with rubber seals that keep water out of the chip's electronic circuit and out of the ocean or washing it in a machine can cause water damage. Saltwater can cause the circuit board to short and then cease to function. In the event that you let your fob get wet, it's not an option however, if you drop it into a glass of water or do not remember to remove it from your pocket before you run the washing machine do not give up hope.

First, remove the battery from the fob. Before replacing the battery clean the electronic chip using isopropyl or a similar product. Check the fob to check if it's working. If the key doesn't work, it may have to be programmed again. This is usually done by a professional or dealer auto locksmith.

If your key is a bit older and is not programmed to work with your vehicle it is necessary to replace it completely. This is a straightforward process that can be completed by a professional locksmith for automotive use. The locksmith will need to cut the key to match the ignition in your vehicle. They will also need to program the fob into the system of your car. This is a low-cost and quick process that can be completed in the same day.

Receiver Module Issues

One of the main reasons why your 500 key fob might stop functioning is that it's out of range. The remote has a maximum range of 30 feet, which means should you be too far from your car, it won't respond to your commands. You can easily fix this by moving the remote closer to your car until it responds.

If you've replaced your coin battery (commonly called a "button" or "watch") and the fob isn't working It could be because of an internal circuit board issue. Reprogramming the fob typically resolves this problem. The instructions are available for the majority of vehicles on YouTube or in the owner's guide.

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

In rare cases, the fob may become disconnected from your vehicle because of software or hardware issues. You can fix this problem by visiting your local auto-locksmith or dealer to reprogram your key fob. In some instances they might need to reinstall the program in your body control module as well.

Interference

Interference can also cause the key fob to be unable to receive or programming transmit a signal. This may happen if the keyfob is located in close proximity to a radio transmitter, like a cell phone or radar detector. The key fob might not function due to a bad connection to the buttons water damage or damage to the internal chips.

If the key fob has stopped working one day in the middle of the night or even after trying every option at home to fix it e.g. battery replacement, reprogramming and using the spare key fob, you may have a damaged receiver module on your 500. The receiver module is located under the dash and receives the radio frequency signals from the key fob. It then converts them into electronic commands that the vehicle interprets.

Luckily, there is an easy way 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 and then the positive cable. Reconnect the battery. This will remove any residual electricity and restart the car's computers, which can help you get your key fob working again. If the issue continues, you should seek the advice of an expert technician. They will be able to identify the root cause of your problems.