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Reasons Your Fiat 500 Key Fob Won't Work

A key fob from Fiat 500 is a convenient way to open the doors and begin the car. There are a variety of reasons why the fob won't work. These include a dead coin battery or water damage, receiver module issues, and interference.

This listing is for a NEW replacement Fiat Flip Key Remote that is similar to the Ilco brand. It has to be professionally programmed (click here to find local automotive locksmiths). Includes lock, unlock, and trunk buttons.

Dead Coin Battery


A dead battery is the main cause of your 500 key fob that isn't working. Key fobs of today have a limited range of operation and must be within just a few inches of the vehicle to function. If you're far from your vehicle and press the keyfob button, it will not respond, and display the message "Key Fob Not Detected".

If this happens, simply 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 at your local hardware store or on the internet.

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

If your fob's key isn't working even after replacing the battery, there may be water damage which prevents it from interacting with the module in your vehicle. Water damage can happen in many ways, such as a simple splash or submerging the key fob saltwater at the beach. If you believe 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 your fob changed by an auto locksmith or dealer.

Water Damage

The fob does have rubber seals to keep water from the chip's electronic circuit the device, submerging it into the ocean or washing it in a machine can cause water damage. Saltwater is particularly dangerous to the fob's circuit board which causes it to short out and eventually die. It's not the best idea to let the fob get wet however, don't give it up when you accidentally drop it in water or forget to remove it from your pocket.

Take the battery off first. Before replacing the battery, clean the electronic chip using isopropyl, or a similar product. Check the fob again to check if it's functioning. If the key still doesn't work, it may need to be reset. This is typically handled by a dealer or professional auto locksmith.

If the key is more recent and hasn't been programmed to your vehicle It is likely that it needs to be replaced completely. This is a simple process that can be carried out by a professional automotive locksmith. The locksmith will have to cut the key to match the ignition in your vehicle. The locksmith also needs to reprogram your fob into the vehicle's system. This is a fast and cost-effective process that can usually be completed within the next day.

Receiver Module Issues

The 500 key fob could be inoperable because it's out of range. The remote has a range of 30 feet. Therefore, if sources are too far from your car it will not respond to your commands. This can be fixed by moving closer to your vehicle until it begins responding.

If your fob isn't working after you replace the battery for the coin, also called a "button", "watch" or "button", it may be due to a malfunction on the internal circuit board. In the majority of cases, reprogramming your fob can resolve the problem. You can find the procedure for most vehicles on YouTube or in the owner's guide.

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

In rare cases it is possible that the fob will become disconnected from your vehicle due to software problems or hardware issues. This can be a major issue, but you are able to frequently fix this issue by visiting an auto locksmith to reprogram your fob for you. In some cases it is possible that the software will require reinstallation into your body control modules.

Interference

In addition to a dead coin battery The key fob may not be receiving or transmitting a signal due to interference. This can occur when the keyfob's location is in close proximity to a radio transmitter like a cellphone or radar detector. Other reasons why the key fob might not work include a weak connection to the buttons, damage to the internal chip, or water damage.

If your key fob suddenly stopped working, or you've tried everything at home to fix it (e.g. replacing the battery, reprogramming it and using the spare key fob, you might have a defective 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 converts them to electronic commands that the vehicle interprets.

Fortunately, there's an easy method of resetting all of the onboard systems in your 500, including the key fob. Disconnect the battery 12 volt for about 15 minutes by removing the negative cable and then the positive cable. Reconnect the battery. This will erase any remaining electrical charge, and then restart the computer in your car. This could help you get your key fob working again. If the issue continues, you should consult an expert certified technician. They'll be able determine the exact cause of your issue.

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Pub: 27 Mar 2024 04:00 UTC
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