Reasons Your Fiat 500 Key Fob Won't Work

A key fob from fiat key Fob replacement 500 makes it easy to open doors and start your vehicle. There are many reasons why the fob may stop working. These include a dead battery damage to the receiver module, water issues, or interference.

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

Dead Coin Battery

The most frequent reason that the 500 key fob won't function is a dead battery. Modern key fobs operate with a restricted operating range, and must be within a few feet of the vehicle to function. If you are not within your car and press the keyfob button, it will not respond, and display the message "Key Fob Not Detected".

If this happens, simply replace the battery in the coin cell (Part number CR2032) with a new one from a reputable manufacturer such as Panasonic, Duracell, or Energizer. You can typically find them in your local hardware store or online.

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

If the fob's remote doesn't function after replacing the battery, it could have water damage that prevents it from communicating with the receiver module in your vehicle. Water damage can happen in a number of ways, from the slightest splash to submerging the fob into salt water at the beach. If you suspect your fob has been exposed to water, you can try placing it in a dry rice bag to pull the moisture back out. If this isn't working, you'll require your fob to be reset by an auto locksmith or dealer.

Water Damage

Although the fob is equipped with rubber seals that keep water from the electronic chip inside, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater can cause the circuit board to short, and eventually fail. The fob getting wet is not an option but if you drop it in an empty cup of water, or do not remember to remove it from your pants pocket prior to running the washer do not give up hope.

Take the battery off first. Before replacing the battery, clean the electronic chip using isopropyl or another similar product. Test the fob next to check if it's functioning. If the key doesn't function, it may need to be reprogrammed. This is usually handled by an auto locksmith or dealer.

If your key is a bit older and is not programmed to work with your vehicle then you'll need to replace it completely. A professional locksmith for automotive can carry out this simple task. The locksmith will require the key cut to match your vehicle's ignition. The locksmith will also need to program your fob into the car's system. This is a low-cost and quick process that could be completed within the same day.

Receiver Module Issues

One of the most common reasons why your 500 key for fiat 500 fob could stop functioning is because it's out of range. The remote usually has an operating range of 30 feet or less and if it's far away from your car it will not respond to your commands. It is possible to remedy this by moving your remote closer to your vehicle until it responds.

If you've replaced the battery on your coin (commonly called a "button" or "watch") and your fob still won't work It could be because of an internal circuit board problem. In the majority of cases, reprogramming your fob will resolve this problem. You can find the procedure for the majority of vehicles on YouTube or in the owner's guide.

It could be necessary to replace the metal clips that hold the coin batteries in their place. If they lose tension, they could stop the coin battery from sitting properly and could result in the malfunction of your remote.

In rare cases the fob can become out of connection with your vehicle as a result of hardware or software issues. This issue can be fixed by visiting your local auto-locksmith or dealer to reprogram your key fob. In some cases the software might require reinstallation into your body control modules.

Interference

In addition to a dead battery on a coin, the key fob may not be able to receive or transmit an signal due to interference. This could happen when the key fob is in close proximity to a radio transmitter, such as a cell phone or radar detector. Other reasons why the key fob could not function could be due to a weak connection to the buttons and 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, and using the spare key fob, you could have a malfunctioning receiver module on your 500. The receiver module is located under the dash and picks up the radio frequency signals from the key fob. It converts them to electronic commands that the vehicle interprets.

Luckily, there is an easy method of resetting every single system on board in your 500, including the key fob. Disconnect the battery for 15 minutes by removing first the negative cable and then the positive cable. Then, reconnect the battery. This will eliminate any remaining electricity, and allow you to restart the computer of your car. This can help you get your key fob working again. If the issue continues, you should seek out an expert technician. They will be able diagnose the exact cause of any problems.