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Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 allows you to easily open doors and start your vehicle. There are a myriad of reasons the key fob might stop working. This could be due to a dead coin-battery or water damage, problems with receiver modules, as well as interference.

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





Dead Coin Battery

A dead battery is the most common reason for your 500 key fob not working. Modern key fobs come with a restricted operating range, and must be within some feet of the car to operate. If you're not close to your vehicle and press the key fob button the car will not respond, and will display a "Key Fob Not Detected" message in the instrument cluster.

If this happens, simply replace the battery in the coin cell (Part number CR2032) with a fresh one from a reputable brand like Panasonic, Duracell, or Energizer. They can be found in the local hardware store or on the internet.

You can test the battery on your coin-cell by pressing the buttons while standing close to your Fiat 500. The parking lights will flash and the key fob should operate the lock and unlock switches.

If the key fob won't work after replacing the battery, it may have water damage that prevents it from connecting to the receiver module in your car. Water damage can happen in many ways, such as an easy splash or submerging the key fob into saltwater at the beach. If you suspect that your fob was exposed to water, put it in a rice bag to draw out the moisture. If this doesn't work the fob might require reprogramming by a professional auto locksmith or dealer.

Water Damage

The fob does have rubber seals to keep water out of the electronic chip inside the device, submerging it into the ocean or washing it in a machine could cause water damage. Saltwater is particularly dangerous to the circuit board of the fob which causes it to short out and eventually end up dying. Getting the fob wet is not an option, but if you drop it into an empty cup of water, or don't remember to take it out of your pants pocket before running the washing machine Don't give up hope.

First, remove the battery. Clean the electronic chip using isopropyl alcohol or another similar product and then dry it thoroughly before replacing the battery. Check the fob to see if it is functioning. If the key does not function, it may have to be reset. This is typically done by a dealer or professional auto locksmith.

If your key is older and has not been programmed for your car You will need to replace it completely. A professional locksmith for cars can complete this simple process. The locksmith will require the key to be cut to match the car's ignition. They will also need to program the fob into the car's system. It's a simple and cost-effective process that can usually be completed the same day.

Receiver Module Issues

The 500 key fob could be inoperable because it's out of range. The remote usually has a range of 30 feet or less, and if it's too far away 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 your fob doesn't work after replacing the coin battery, also known as a "button", "watch" or "button", it could be due to an issue with the circuit board inside. Reprogramming the fob typically resolves this issue. You can find instructions on how to do this for all vehicles by searching YouTube or reading the owner's manual.

fiat ducato key that you need to replace the metal retaining clips that hold the battery of your coin in place. If they become loose, it could prevent your coin battery from sitting properly, causing your remote to malfunction.

In rare cases the fob can become out of connection with your vehicle as a result due to hardware or software issues. This can cause a major issue, but you are able to usually fix it by visiting an auto locksmith to reprogram your fob for you. In some cases they might need to reinstall the software in your body control module too.

Interference

In addition to a dead battery on a coin The key fob might not be able to receive or transmit an signal due to interference. This can happen when the key fob is near the radio transmitter (cell phones or radar detectors) or another source of electromagnetic radiation. The key fob could not function because of a weak connection to the buttons or water damage, or damage to the internal chips.

If the key fob been unable to function for a while out of the blue, or after trying everything you can at home to solve it e.g. You may have a faulty 500 receiver module after you've tried replacing the battery, reprogramming, and using an alternative key fob. The receiver module is situated under the dash and is able to pick up the radio frequency signals from the key fob. It transforms the signals into electronic commands that are then interpreted by the vehicle.

There's a quick and easy way to reset the 500's in-board system including the keyfob. Disconnect the battery for 15 minutes by taking off first the negative cable and then the positive cable. Reconnect the battery. This will clear out any residual electricity and restart the car's computers. This could help the key fob to function again. If the issue continues, you should seek out an expert technician. They can identify the exact cause of any issues.