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Reasons Your Fiat 500 Key Fob Won't Work

A key fob from Fiat 500 is a convenient way to unlock the doors and get started the car. There are a myriad of reasons the key fob might stop working. This could be due to a dead coin-battery and water damage, as well as issues with the receiver module, and interference.

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Dead Coin Battery

A dead battery is the main cause of your 500 key fob not functioning. Modern key fobs operate with a restricted operating range, and should be within just a few feet of the vehicle to operate. If you're far away from your vehicle and you press the key fob button the car won't be able to respond, and will display an "Key Fob Not Detected" message in the instrument cluster.

If this happens, replace the battery in the coin cell (Part number CR2032) with a fresh one from a reliable brand such as Panasonic, Duracell, or Energizer. They are typically available at your local hardware store, or online.

After you've replaced the battery in the coin cell you can test it by standing next to your Fiat 500 and pressing the buttons. The car will flash its parking lights and the key fob should work the lock and unlock switches.

If your fob's key isn't working after replacing the battery, there could be water damage that hinders it from connecting to the module inside your vehicle. Water damage can happen in a variety of ways, ranging from a light splash to submerging the fob in salt water 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 that doesn't work, the fob might need to be reprogrammed by a professional auto locksmith or dealer.

Water Damage

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Damage to the water supply can occur if you submerge the fob in the ocean, or wash it in a machine. Saltwater can cause the circuit board to short and eventually end up dying. It's not a good idea to get the fob wet, but don't give it up if you accidentally drop it in water or fail to remove it from your pants pocket.

Remove the battery first. Before replacing the battery, clean the electronic chip with isopropyl or similar products. Next, test the fob to test if it works. If the key does not work, it might need to be reset. This is typically handled by a professional or dealer auto locksmith.

If the key you have is older and is not programmed to work with your vehicle then you'll need to replace it completely. A professional automotive locksmith can do this job. The locksmith will require the key to be cut to match the car's ignition. They'll also have to reprogram the fob in the system of your car. This is a fast and inexpensive process that can be completed the same day.
https://www.g28carkeys.co.uk/fiat-car-key-replacements-near-me/ of the main reasons why your 500 key fob could stop working is that it's simply out of range. The remote has a range of 30 feet. So when you're too far from your car it will not respond to your commands. You can remedy this by moving your remote closer to your car until it responds.

If you've replaced your coin battery (commonly called a "button" or "watch") and the fob won't work, it could have an internal circuit board problem. In most cases, reprogramming the fob will resolve this problem. You can find instructions on how to do this for all vehicles by searching YouTube or looking through the owner's manual.

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

In rare cases the fob might be out of the vehicle's sync because due to hardware or software issues. This could be a huge issue, but you are able to usually resolve this issue by visiting an auto locksmith to reprogram your fob for you. In some instances it is possible that the software will require reinstallation into your body control modules.

Interference

In addition to a dead battery on a coin The key fob might not be able to receive or transmit the signal due to interference. This could happen if the key fob is close to an electronic radio transmitter (cell phones, radar detectors) or any other source of electromagnetic radiation. Other reasons the key fob might not function include a weak connection to the buttons or damage to the internal chip or water damage.

If the key fob has failed to work one day in the middle of the night and you've tried everything you can do at home to solve it e.g. It could be a defective 500 receiver module If you've tried replacing it with a battery, reprogramming or using an alternative key fob. The receiver module, which is located under the dashboard, is able to pick up radio frequency signals from your key fob. It converts them into electronic commands that the vehicle interprets.

Fortunately, there's an easy method of resetting all of the on-board systems in your 500 and include the key fob. Disconnect the battery of 12 volts for approximately 15 minutes by disconnecting the negative cable first then the positive cable. Reconnect the battery. This will remove any residual electricity and restart the car's computers, which can help you the key fob to function again. If the issue persists, you should speak with an expert technician. They'll be able to identify the root cause of your problem.