Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 is a great way to unlock the doors and get started the car. There are a myriad of reasons the fob won't work. These include a dead coin battery or water damage, receiver module issues, and interference.

This listing is for a NEW replacement Fiat 500 Key fob replacement (Vk1b87o4zefwd.한국) Flip Key Remote - like the Ilco brand that needs to be professionally programmed by a local locksmith (click here to search for a Locksmith Search). It includes trunk, lock and unlock buttons.

Dead Coin Battery

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

If this happens, replace the coin cell battery (Part number CR2032) with a new one from a trusted brand like Panasonic, Duracell, or Energizer. They are usually available in your local hardware store or online.

After you've changed the battery on the coin cell It is possible to test it by standing close to your fiat keys 500 and pressing the buttons. The car should flash its parking lights and the key fob should operate the lock and unlock buttons.

If your key fob still does not work after replacing the battery, it might be water damage that hinders it from communicating with the module in 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 believe your fob was exposed to water, put it in a rice bag to draw out the moisture. If this does not work, you'll require your fob to be reset by an auto locksmith or a dealer.

Water Damage

Damage to the water supply can occur if you immerse the fob into the ocean, or wash it in a washer. Saltwater is especially dangerous to the fob's circuit board that can cause it to short out and eventually die. The fob getting wet is not an ideal choice but if you accidentally drop it in the water in a cup or do not remember to remove it from your pocket before you run the washer, don't give up hope.

First remove the battery from the fob. Clean the electronic chip using isopropyl alcohol or another similar product and then dry it completely before replacing the battery. Test the fob afterward to determine if it's working. If the key does not work, it might need to be changed. This is usually handled by a dealer or professional auto locksmith.

If the key is a newer model and hasn't been programmed to your vehicle It is likely that it needs to be replaced completely. This is a simple procedure that can be completed by a professional automotive locksmith. The locksmith will have to cut the key to match the ignition of your car. The locksmith will also have to reprogram the fob into the vehicle's system. This is a low-cost and quick procedure that can be completed on the same day.

Receiver Module Issues

One of the simplest reasons why your 500 key fob won't be working 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 can be solved by moving it closer to your vehicle until it starts responding.

If your fob won't work after replacing the coin battery, also known as a "button", "watch" or "button" it could be due to an issue with the internal circuit board. 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 possible to replace the metal clips that hold the coin batteries in their place. If they become loose, it may prevent your battery from being properly seated and cause your remote to malfunction.

In rare cases it is possible that the fob will become desync'd with your vehicle due to software or hardware issues. This can cause a major issue, but you are able to usually fix it by visiting a local dealer or auto locksmith to have them reprogram your fob for you. In some instances the software might require reinstallation into your body control modules.

Interference

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

If the key fob has failed to work one day without notice and you've tried everything you can do at home to resolve it e.g. You could have a malfunctioning 500 receiver module in the event that 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. Then, it converts them into electronic commands that the vehicle interprets.

Luckily, there is an easy method to reset all of the on-board systems in your 500 device, including the key fob. Disconnect the battery 12 volt for approximately 15 minutes by removing the negative cable first then the positive cable. Reconnect the battery. This will remove any remaining electrical charge, and then restart the computer in your car. This can help get your key fob to work again. If the issue continues it is recommended that you consult an expert technician. They will be able to identify the root cause of any issues.