Reasons Your fiat key replacement 500 Key Fob Won't Work

A key fob for the Fiat Key Replacement 500 makes it easy to open doors and start your vehicle. However, there are a variety of reasons why the key fob might stop functioning. This could be due to a dead coin-battery and water damage, as well as problems with the receiver modules, and interference.

This listing is for a NEW replacement fiat replacement key Flip Key Remote that is similar to the Ilco brand. It needs to be professionally programmed (click here to find local automotive locksmiths). Includes lock, unlock and trunk buttons.

Dead Coin Battery

The most frequent reason why your 500 key fob won't function is due to a dead battery. Modern key fobs have an operating range that is limited and must be within only a few inches from the vehicle to function. If you're far from your vehicle, and you press the keyfob button it will not respond, and display the message "Key Fob Not Detected".

If this happens, simply replace the battery on your coin cell (Part number CR2032) with a fresh one from a trusted brand like Panasonic, Duracell, or Energizer. You can find them in the local hardware store or online.

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

If your key fob does not work after replacing the battery, it could be water damage that hinders it from interacting with the module inside your vehicle. Water damage can happen in many ways, including an easy splash or submerging the key fob in saltwater at the beach. If you suspect that your fob has been exposed to water, put it in a dry rice bag to draw the moisture out. If that doesn't work your fob will probably need to be reprogrammed by a professional auto locksmith or dealer.

Water Damage

While the fob has some rubber seals that keep water from 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 become shorted and eventually die. It's not a good thing to get the fob wet however, don't give it up even if you accidentally drop the fob in the water or don't take it out of your pants pocket.

Remove the battery first. Clean the electronic chip using isopropyl or a similar product and dry it completely before replacing the battery. Test the fob next to determine if it's working. If the fob doesn't work, it may need to be programmed again. This is usually handled by an auto locksmith or dealer.

If your key is older and not programmed to work with your vehicle it is necessary to replace it completely. A professional automotive locksmith can complete this simple process. The locksmith must cut the key to match the ignition on your vehicle. They'll also need to reprogram the fob to the car's system. This is an affordable and quick procedure that can be completed in the same day.

Receiver Module Issues

Your 500 key fob might stop working because it is 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 solve this issue by moving the remote closer to your car until it responds.

If you've replaced the coin battery (commonly called a "button" or "watch") and your fob doesn't function It could be because of an internal circuit board issue. Reprogramming the fob usually resolves this issue. You can find the steps for the majority of vehicles on YouTube or in the owner's guide.

It is sometimes necessary to replace the clips made of metal that hold the coin batteries in their place. If they lose tension it could hinder the battery from being seated properly and can cause your remote to malfunction.

In rare instances the fob might become disconnected from your vehicle due to software issues or hardware issues. You can fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In some cases they may have to reinstall the program in your body control module, as well.

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 radio transmitters (cell phones, radar detectors) or any other source of electromagnetic radiation. Other reasons the key fob may not function include a weak connection to the buttons or the internal chip or water damage.

If the key fob has been unable to function for a while in the middle of the night, or after trying everything you can at home to resolve it e.g. It could be a defective 500 receiver module If you've tried replacing it with a battery, reprogramming or using a spare key fob. The receiver module is situated under the dash and receives the radio frequency signals from the key fob. It converts the signals into electronic commands that are then processed by the vehicle.

There is a straightforward method to reset the 500's on-board system, including the keyfob. Disconnect the battery for 15 minutes by taking off first the negative cable and then the positive cable. Reconnect the battery. This will get rid of any remaining electrical charge and restart the car's computers, which can help the key fob to function again. If the problem persists you should speak with an expert technician. They will be able diagnose the root of any problems.