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Reasons Your Fiat 500 Key Fob Won't Work

A key fob from fiat 500 spare key cut 500 allows you to easily open doors and start your car. There are many reasons why the fob won't work. This includes a dead battery water damage, issues with the receiver module, and interference.

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Dead Coin Battery

The most common reason your 500 key fob doesn't work is the battery is dead. Modern key fobs come with a restricted operating range, and should be within some feet of the vehicle in order to function. If you're far from your vehicle and press the key fob button, the car won't respond and will display an "Key Fob Not Detected" message in the instrument cluster.

If this happens, replace the battery of your coin cell (Part number CR2032) with a new fiat key one from a reputable manufacturer such as Panasonic, Duracell, or Energizer. They are usually available in your local hardware store or on the internet.

You can test the battery of your coin-cell by pressing the buttons while standing near your Fiat 500. The car will blink its parking lights, and the key fob should be able to operate the lock and unlock switches.

If your key fob still doesn't work even after replacing the battery, it might be water damage that prevents it from communicating with the module inside your vehicle. Water damage can happen in many ways, such as simply splashing or submerging the key fob saltwater at the beach. If you think your fob was exposed to water, you can place it in a bag of rice to draw out the moisture. If that doesn't work your fob may need to be reset by a professional auto locksmith or the dealer.

Water Damage

Water damage can occur when you immerse the fob into the ocean or wash it in a washer. Saltwater can cause the circuit board to short and eventually end up dying. If you get the fob wet, it's not a good idea, but if you drop it into a cup of water or don't remember to take it out of your pants pocket before running the washer and you don't have a chance, don't give in.

First, remove the battery. Before replacing the battery clean the electronic chip using isopropyl, or a similar product. Check the fob to check if it's working. If the key does not function then it might need to be reset. This is typically done by a dealer or professional auto locksmith.

If the key is newer and has not been programmed to your vehicle It is likely that it needs to be replaced completely. This is an easy process which can be accomplished by a professional automotive locksmith. The locksmith will need the key to be cut to match your car's ignition. The locksmith will also need to reprogram the fob into the vehicle's system. It's a simple and cost-effective process which can be completed in the next day.

Receiver Module Issues

One of the main reasons your 500 key fob might 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 vehicle, it will not respond to your commands. This can be easily fixed by moving closer to your vehicle until it begins responding.

If you've replaced the coin battery (commonly called"button" or "button" or "watch") and the fob won't work It could be because of an internal circuit board problem. In the majority of cases, reprogramming your fob will fix the problem. You can find the instructions on how to do this for all automobiles by searching YouTube or consulting the owner's manual.

It is possible to replace the clips made of metal that hold the coin batteries in the correct position. If they become loose, it can stop your coin battery from sitting properly, causing your remote to malfunction.

In rare cases, the fob may become disconnected from your vehicle due to software problems or hardware issues. This could cause a significant issue, but you are able to often fix this by visiting a local dealer or auto locksmith to reprogram your fob for you. In some instances it is possible that the software will need to be reinstalled in your body control modules.

Interference

Interference can also cause the key fob to be unable to receive or transmit signals. This could happen if the key fob is located near a radio transmitter (cell phones, radar detectors) or any other source of electromagnetic radiation. Other reasons the key fob may 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 if you have tried everything at home to solve the issue (e.g. replacing the battery, reprogramming, and using the spare key fob, it could have a malfunctioning receiver module on your 500. The receiver module, located beneath the dashboard, receives radio frequency signals from your key fob. It transforms the signals into electronic commands which are then translated by the vehicle.

Luckily, there is an easy method to reset all on-board systems in your 500, including the key fob. Disconnect the battery for 15 minutes by taking off first the negative cable, then the positive cable. Reconnect the battery. This will get rid of any remaining electrical charge and restart the car's computers, which could allow you to get your key fob working again. If the problem persists you should consult an expert technician. They can determine the exact cause of your problem.