Reasons Your Fiat 500 Key Fob Won't Work

A key fob with the fiat 500 number is a handy way to unlock the doors and get started the car. There are many reasons why the fob may stop working. It could be due to a dead battery damage to the receiver module, issues, and interfering.

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Dead Coin Battery

A dead battery is the most frequent reason for your 500 key fob not functioning. Modern key fobs only have only a limited range of operation and must be within a few inches of the vehicle to function. If you're far from your car and hit the keyfob, it won't respond and display the message "Key Fob Not Detected".

If this happens, simply replace the battery of your coin cell (Part number CR2032) with a fresh one from a reliable brand like Panasonic, Duracell, or Energizer. You can find them at your 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 car will flash its parking lights, and the key fob should operate the lock and unlock switches.

If the key fob won't work after replacing the battery, it might be damaged by water, which prevents it from connecting to the receiver module in your vehicle. Water damage can occur in a variety of ways, from the slightest splash to submerging your fob in salt water at the beach. If you suspect that your fob has been exposed to water, try putting it in a dry rice bag to pull the moisture back out. If this isn't working, you'll need to have the fob reprogrammed either by an auto locksmith or a dealer.

Water Damage

Water damage can happen if you immerse the fob into the ocean or wash it in a washing machine. Saltwater can cause the circuit board to short and eventually die. It's not the best idea to get the fob wet, but don't give it up if you accidentally drop it in the water or don't take it out of your pocket.

Take the battery off first. Clean the electronic chip using isopropyl or a similar product and then dry it completely before replacing the battery. Next, test the fob to verify if it is working. If the fob doesn't work, it may need to be programmed again. This is usually done by a professional or dealer auto locksmith.

If the key you have is older and has not been programmed for your car You will need to replace it completely. This is a simple process which can be accomplished by a professional locksmith for automotive use. The locksmith will need the key to be cut to match your car's ignition. The locksmith will also have to program your fob into the car's system. This is an affordable and quick process that could be completed the same day.

Receiver Module Issues

Your 500 key fob might stop working because it is out of range. The remote typically has an area of 30 feet or less and if it's far from your car, it will not respond to your commands. This can be fixed by moving closer to your vehicle until it begins responding.

If you've replaced the coin battery (commonly known as a "button" or "watch") and the fob won't work it could be due to an internal circuit board issue. Reprogramming your fob can resolve this issue. There are instructions on how to do this for the majority of automobiles by searching YouTube or reading the owner's manual.

It is sometimes necessary to replace the metal clips that hold the coin batteries in their place. If they become loose, it can stop your coin battery from being properly seated, causing your remote to malfunction.

In rare cases the fob may be out of connection with your vehicle as a result due to hardware or software issues. You can fix this problem by visiting your local dealer or auto-locksmith to reprogram your key fob. In some cases the software may require reinstallation in your body control modules.

Interference

In addition to a dead coin battery, the key fob may not be receiving or transmitting a signal due to interference. This can happen when the key fob is located near an electronic radio transmitter (cell phones and radar detectors) or another source of electromagnetic radiation. Other reasons the key fob may not function could be due to a weak connection to the buttons, damage to the internal chip, or water damage.

If your key fob suddenly stopped working, or if you have tried everything at home to fix it (e.g. It could be a defective 500 receiver module If you've tried replacing it with a battery, reprogramming, and using an alternative key fob. The receiver module, which is located beneath the dashboard, receives radio frequency signals from your key fob. It converts them into electronic commands that the vehicle interprets.

Luckily, there is an easy way to reset all of the onboard systems in your 500 device, including the key fob. Disconnect the battery 12 volt for approximately 15 minutes by taking off the negative cable first then the positive cable. Reconnect the battery. This will get rid of any residual electricity and restart the car's computers. This can help get your key fob working again. If the issue persists, you should seek out an expert technician. They'll be able to identify the root cause of your issues.