Reasons Your Fiat 500 Key Fob Won't Work

A key fob from Fiat 500 makes it simple to open doors and start your car. However, there are numerous reasons why the key fob might stop working. This could be due to a dead coin battery or damage to the receiver module, water issues, and interfering.

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

Dead Coin Battery


The most frequent reason why your 500 key fob will not function is due to a dead battery. Modern key fobs have a limited range of operation and must be within just a few inches of the vehicle to work. If you're not close to your vehicle when you press the key fob button, the car won't respond and will display a "Key Fob Not Detected" message in the instrument cluster.

If fiat 500 key button replacement occurs you need to replace the battery of your coin-cell (Part Number CR2032) by a new one of a reliable brand, such as Panasonic Duracell or Energizer. You can find them in the local hardware store or on the internet.

You can test the battery of your coin-cell by pressing the buttons while you are standing close to your Fiat 500. The car will blink its parking lights, and the key fob should work the lock and unlock buttons.

If your fob's key doesn't work even after replacing the battery, it might be water damage that has prevented it from communicating with the module inside your vehicle. Water damage can happen in many ways, such as the simple splash or submerging the key fob into saltwater at the beach. If you suspect that your fob was exposed to water, you can place it in a rice bag to draw out the moisture. If that doesn't work, your fob will probably require reprogramming by an experienced auto locksmith or dealer.

Water Damage

While the fob has some rubber seals that keep water out of the electronic chip inside, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to become shorted and eventually cease to function. It's not the best idea to soak the fob in water, but don't give it up if you accidentally drop it in water or forget to remove it from your pants pocket.

First, remove the battery. Before replacing the battery, clean the electronic chip using isopropyl, or a similar product. Check the fob again to see if it is functioning. If the key does not function, it may need to be reprogrammed. This is usually handled by an auto locksmith or dealer.

If the key is more recent and hasn't been programmed to your car It is likely that it needs to be replaced completely. This is a simple procedure that can be carried out by a professional locksmith for automotive use. The locksmith will have to cut the key to match the ignition of your vehicle. The locksmith also needs to reprogram your fob into the vehicle's system. This is a cheap and quick process that can be completed within the same day.

Receiver Module Issues

One of the most common reasons your 500 key fob won't be working is that it's simply out of range. The remote has a maximum range of 30 feet, so in the event that you are far from your car it will not respond to your commands. This can easily be resolved by moving closer to your vehicle until it starts responding.

If you've replaced the coin battery (commonly known as"button" or "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 can resolve the problem. You can find instructions on how to do this on the majority of automobiles by searching YouTube or consulting the owner's manual.

It is possible to replace the metal clips that hold the coin battery. If they lose tension, it could prevent the battery from being properly seated, and this will result in the malfunction of your remote.

In rare cases the fob can become out of the vehicle's sync because of hardware or software problems. This can be a major headache, but you can often fix this by visiting an auto locksmith to have them reprogram your fob. In some cases, the software may also require reinstallation to your body control modules.

Interference

Interference can also cause the key fob to not receive or transmit an signal. This could occur if the key fob is close to a radio transmitter (cell phones and radar detectors) or another source of electromagnetic radiation. Other reasons the key fob could not function may be a lack of connection to the buttons, damage to the internal chip, or water damage.

If your key fob suddenly stopped working, or you've tried everything at home to solve the issue (e.g. replacing the battery, reprogramming it and using the spare key fob, you may have a defective receiver module on your 500. The receiver module, located under the dashboard, detects radio frequency signals from your key fob. It converts the signals into electronic commands which are then interpreted by the vehicle.

Luckily, there is an easy method of resetting all on-board systems in your 500 keys, including the key fob. Disconnect the battery for 15 minutes by taking off first the negative cable and then the positive cable. Reconnect the battery. This will clear any residual electricity, and allow you to restart the car's computer. This will help you get your key fob to work again. If the problem persists, you should consult an experienced technician. They will be able to identify the root cause of your issue.