Reasons Your Fiat 500 Key Fob Won't Work

A key fob from Fiat 500 makes it easy to open doors and start your vehicle. However, there are a variety of reasons why the fob won't be functioning. This could be due to a dead coin-battery, water damage, problems with the receiver modules, and interference.

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Dead Coin Battery

A dead battery is the most common reason for your 500 key fob being inoperative. Modern key fobs have only 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 when you press the key fob button the car won't respond and will display the "Key Fob Not Detected" message in the instrument cluster.

If this happens, replace the coin cell battery (Part number CR2032) with a new one from a reputable manufacturer like Panasonic, Duracell, or Energizer. They are usually 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 parking lights will flash and the key fob should operate the lock and unlock switch.

If the key fob doesn't function after replacing the battery, it might be damaged by water that blocks it from connecting to the receiver module in your vehicle. Water damage can occur in a number of ways, where to get a fiat key cut from an accidental splash to submerging the fob salt water at the beach. If you suspect that your fob was exposed Where To Get A Fiat Key Cut water, you can place it in a rice bag to draw out the moisture. If this doesn't work, you will need to have the fob reprogrammed either by an auto locksmith or a dealer.

Water Damage

Although the fob is equipped with rubber seals that keep water out of the chip's electronic circuit the device, submerging it into the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to become shorted and eventually fail. It's not good to soak the fob in water but don't give up even if you accidentally drop the fob in water or forget to remove it from your pants pocket.

First remove the battery from the fob. Before replacing the battery clean the electronic chip with isopropyl or another similar product. Then, test the fob to check if it functions. If the key isn't working, it may need to be programmed again. This is typically handled by a professional or dealer auto locksmith.

If the key is older and has never been programmed to your car It will most likely need to be replaced completely. This is a straightforward process that can be carried out by a professional automotive locksmith. The locksmith will have to cut the key to match the ignition of your car. They'll also need to program the fob into the system of your car. This is a cost-effective and quick process that can be completed on the same day.

Receiver Module Issues

The 500 key fob could not function because it's out of range. The remote typically has an operating range of 30 feet or less, and if it's too far from your car, it will not respond to your commands. It is possible to remedy this by moving your remote closer to your car until it responds.

If your fob doesn't work after replacing the battery for the coin, also known as a "button", "watch" or "button" or "button", it could be due to a problem with the internal circuit board. Reprogramming the fob typically resolves this problem. You can find instructions on how to do this for the majority of automobiles by searching YouTube or consulting the owner's manual.

You may need to replace the metal retaining clips that keep the coin battery in place. If they loose tension, they could stop the coin battery from being seated properly and can cause the remote to malfunction.

In rare cases, the fob may become desync'd with your vehicle due to software or hardware issues. This issue can be fixed by visiting your local dealer or auto-locksmith to reprogram your key fob. In some cases, the software may also require reinstallation into your body control modules.

Interference

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

If the key fob has been unable to function for a while out of the blue and you've tried everything you can at home to fix it e.g. replacing batteries, reprogramming or using the spare key fob, you may have a defective receiver module on your 500. The receiver module, which is located under the dashboard, detects radio frequency signals from your key fob. It converts them to electronic commands that the vehicle interprets.

There is a simple way to reset the 500's onboard system including the keyfob. Disconnect the battery of 12 volts for about 15 minutes, by removing the negative cable first then the positive cable. Reconnect the battery. This will eliminate any remaining electricity and then restart the car's computer system, which can help you get your key fob working again. If the issue continues, you should consult an expert technician. They will be able to determine the exact cause of your problems.