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

A key fob with the fiat 500 number is a handy way to open the doors and begin the car. However, there are a variety of reasons why the key fob might stop working. This includes a dead battery or water damage, problems with the receiver modules, and interference.

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Dead Coin Battery

A dead battery is the most common cause of your 500 key fob that isn't working. Modern key fobs have a limited operating range and should be within some feet of the vehicle in order to function. If you are far from your vehicle and you press the keyfob button, it won't respond and display the message "Key Fob Not Detected".

If this happens, 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 usually find them at your local hardware store or on the internet.

After you've replaced the battery in the coin cell you can test it by standing in front of your Fiat 500 and pressing the buttons. The parking lights should flash and the key fob should operate the lock and unlock switches.

If the fob's key doesn't work after replacing the battery, it might have water damage that prevents it from connecting to the receiver module in your car. Water damage can happen in a number of ways, from a light splash to submerging your fob in salt water at the beach. If you suspect that your fob has been exposed to water, place it in a rice bag to draw out the moisture. If this does not work, you'll require your fob to be reprogrammed either by an auto locksmith or dealer.

Water Damage

Water damage can happen if you immerse the fob into the ocean, or wash it in a washing machine. Saltwater is especially dangerous to the circuit board of the fob and can cause it to short out and eventually end up dying. It's not a good thing to submerge the fob in water however, don't give it up when you accidentally drop it in water or forget to remove it from your pants pocket.

First, remove the battery. Clean the electronic chip with isopropyl alcohol or a similar product and cut then dry it completely before replacing the battery. Check the fob to verify if it's working. If the key does not function then it might need to be changed. This is usually done by an auto locksmith or dealer.

If the key is more recent and has never been programmed to your vehicle It will most likely need to be replaced completely. This is a straightforward process which can be accomplished by a professional automotive locksmith. The locksmith will need to cut the key to match the ignition of your car. They will also need to program the fob into the system of your car. This is an affordable and quick procedure that can be completed on the same day.

Receiver Module Issues

One of the simplest reasons why your 500 key fob may stop functioning is because it's 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. You can easily solve this issue by moving the remote closer to your vehicle until it responds.

If your fob won't work after you replace the battery in the coin, also called a "button", "watch" or "button", it may be due to a malfunction on the circuit board inside. In the majority of cases, reprogramming your fob will resolve this issue. The instructions are available for most vehicles on YouTube or in the owner's manual.

It is possible to replace the metal clips that keep the coin battery. If they lose tension they could stop the coin battery from being seated properly and can cause your remote to malfunction.

In rare cases the fob could be out of the vehicle's sync because of hardware or software problems. You can fix this problem by visiting your local dealer or auto-locksmith to reprogram your key fob. In some instances, the software may also 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 transmit or receive signals due to interference. This can occur when the key fob is in close proximity to a radio transmitter, like a cellphone or radar detector. The key fob could not function due to a bad connection to the buttons water damage or damage to the internal chips.

If your key fob suddenly stopped working, or you have tried everything at home to solve the issue (e.g. replacing the battery, reprogramming, and using the spare key fob, you might have a malfunctioning receiver module on your 500. The receiver module is located under the dash and receives the radio frequency signals from the key fob. It transforms the signals into electronic commands, which are then processed by the vehicle.

Luckily, there is an easy method to reset all of the onboard 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. Then reconnect the battery. This will remove any remaining electric current, and also restart the computer of your car. This will help you get your key fob to function again. If the problem persists you should consult an expert technician. They can identify the exact cause of issues.