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Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 makes it simple to open doors and start your car. There are many reasons the fob could stop working. It could be due to a dead battery water damage, receiver module issues, and interference.

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

Dead Coin Battery

The most common reason the 500 key fob won't function is due to an inactive battery. Modern key fobs operate with a limited operating range, and must be within some feet of the vehicle in order to function. If you're not close to your vehicle and press the key fob button, the car won't respond, and will display a "Key Fob Not Detected" message in the instrument cluster.

If this happens, replace the battery of your coin cell (Part number CR2032) with a brand new one from a reputable manufacturer like Panasonic, Duracell, or Energizer. They are available at your local hardware store, or on the internet.

After you've replaced the coin cell battery, 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 fob's key doesn't work after replacing the battery, it may be damaged by water, which prevents it from communicating with the receiver module inside your vehicle. Water damage can happen in a variety of ways, from a light splash to submerging the fob into salt water at the beach. If you suspect your fob was exposed to water, try putting it in a dry rice bag to pull the moisture out. If this isn't working, you'll require your fob to be reset by an auto locksmith or dealer.

Water Damage

While the fob has some rubber seals that keep water out of the chip's electronic circuit and out of the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to short, and eventually end up dying. The fob getting wet is not an option but if you accidentally drop it into the water in a cup or forget to remove it from your pants pocket before running the washer, don't give up hope.

Take the battery off first. Clean the electronic chip using isopropyl or a similar product and dry it completely before replacing the battery. Then check the fob to see if it works. If the key doesn't 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 for your vehicle You will need to replace it completely. This is a simple process that can be carried out by a professional automotive locksmith. The locksmith will require the key to be cut to match the car's ignition. They will also need to reprogram the fob to the system of your car. This is a cost-effective and quick procedure that can be completed in the same day.

Receiver Module Issues

One of the most common reasons your 500 key fob could stop functioning is that it's out of range. The remote usually has 30 feet of range or less and if it's far from your vehicle, it won't respond to your commands. You can remedy this by moving your remote closer to your vehicle until it responds.

If  fiat punto key replacement 've replaced the battery in your coin (commonly known as a "button" or "watch") and your fob doesn't function it could be due to an internal circuit board problem. Reprogramming the fob is usually the solution to this issue. You can find the instructions on how to do this for the majority of vehicles by searching YouTube or consulting the owner's manual.

You may need to replace the metal retaining clips that hold the battery of your coin in place. If they loose tension, it can stop your coin battery from sitting properly, causing your remote to malfunction.

In rare cases the fob could be desync'd with your vehicle due to software issues or hardware issues. This can cause a major problem, but you can often fix this by visiting a local dealer or auto locksmith to have them reprogram your fob for you. In certain instances, the software may also require reinstallation in your body control modules.

Interference

Interference can also cause the key fob to be unable to receive or transmit the signal. This can happen when the key fob is in proximity to the radio transmitter (cell phones or radar detectors) or another source of electromagnetic radiation. The key fob might not function because of a problem to the buttons or water damage, or damage to the internal chips.

If your key fob suddenly stopped working, or you have tried everything at home to fix it (e.g. You may have a faulty 500 receiver module if you've tried replacing the battery, reprogramming or using a spare 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 converts the signals into electronic commands that are then read by the vehicle.

There's a simple method to reset the 500's on-board 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 clear out any remaining electricity and restart the car's computers, which can help get your key fob working again. If the issue continues, you should consult an expert technician. They will be able to identify the exact cause of any problems.