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Reasons Your Fiat 500 Key Fob Won't Work

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

This listing is for a NEW replacement fiat car key Flip Key Remote that is similar to the Ilco brand. It needs to be professionally programmed (click here to search for local automotive locksmiths). It comes with lock, unlock and trunk buttons.

Dead Coin Battery

A dead battery is the most common cause of your 500 key fob not working. Modern key fobs offer limited operating range and must be within a few inches of your vehicle in order to work. If you're far from your vehicle, and you press the key fob button the car won't respond and will display an "Key Fob Not Detected" message in the instrument cluster.

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

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

If the key fob won't function after replacing the battery, it might have water damage that stops it from connecting to the receiver module in your vehicle. Water damage can occur in many ways, including a simple splash or submerging the key fob into 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 may need to be reprogrammed by an experienced auto locksmith or by the dealer.

Water Damage

Water damage can occur when you immerse the fob in the ocean or wash it in a washer. Saltwater can cause the circuit board to short and eventually fail. The fob getting wet is not a good idea, but if you drop it into the water in a cup or forget to take it out of your pocket before you run the washer Don't give up hope.

First take the battery off the fob. Before replacing the battery, clean the electronic chip using isopropyl, or a similar product. Next check the fob to see if it works. If the key doesn't function, it may need to be reprogrammed. This is usually handled by an auto locksmith or dealer.

If the key is a newer model and was not programmed to your car, it will likely need to be replaced completely. A professional locksmith for cars can complete this simple process. The locksmith will require the key to be cut to match your car's Ignition Repair. They will also need to reprogram the fob for the car's system. This is a low-cost and quick process that could be completed within the same day.

Receiver Module Issues

The 500 key fob you have may be inoperable because it's out of range. The remote's range is of 30 feet. Therefore, should you be too far from your car it won't be able to respond to your commands. This can be easily fixed by moving closer to your vehicle until it starts responding.

If your fob isn't working after replacing the battery inside the coin, which is also called a "button", "watch" or "button", it may be due to a malfunction on the circuit board inside. Reprogramming the fob is usually the solution to this problem. You can find directions on how to do this on the majority of automobiles by searching YouTube or consulting the owner's manual.

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

In rare instances, the fob could be out of the vehicle's sync because due to hardware or software issues. This could be a huge headache, but you can usually resolve this issue by visiting a local dealer or auto locksmith to reprogram your fob. In some cases they might need to reinstall the software on your body control module as well.

Interference

Interference can also cause the key fob to not receive or transmit signals. This may happen if the keyfob is located in close proximity to a radio transmitter, like a cellphone or radar detector. The key fob could not function because of a problem with the buttons or water damage, or damage to the internal chips.

If your key fob suddenly stopped working, or if you've tried everything at home to resolve it (e.g. battery replacement, reprogramming and using the spare key fob, you may have a malfunctioning receiver module on your 500. The receiver module is situated under the dash and is able to pick up the radio frequency signals from the key fob. It then converts them into electronic commands that the vehicle interprets.

There's a quick and easy way to reset the 500's on-board system, including the keyfob. Disconnect the 12 volt battery for approximately 15 minutes by taking off the negative cable first then the positive cable. Reconnect the battery. This will get rid of any remaining electricity and restart the car's computer system, which can help get your key fob working again. If the problem persists you should consult an expert technician. They can determine the exact cause of your problem.