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Reasons Your Fiat 500 Key Fob Won't Work

A key fob from Fiat 500 allows you to easily open doors and start your car. However, there are many reasons the fob could stop functioning. This includes a dead battery and water damage, as well as problems with the receiver modules, and interference.

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

Dead Coin Battery

The most common reason the 500 key fob won't work is the battery is dead. Modern key fobs have 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 press the keyfob button, it won't respond and display the message "Key Fob Not Detected".

If this happens, simply replace the battery in the coin cell (Part number CR2032) with a fresh one from a reputable manufacturer such as Panasonic, Duracell, or Energizer. You can typically find them in your local hardware store or on the internet.

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

If the key fob doesn't function after replacing the battery, it may be damaged by water that blocks it from connecting to the receiver module in your car. Water damage can happen through a variety of methods, including the simple splash or submerging the key fob in saltwater at the beach. If you suspect your fob was exposed to water, you can try placing it in a dry rice bag to pull the moisture out. If that doesn't work, your fob may require reprogramming by a professional auto locksmith or dealer.

Water Damage

Water damage can occur when you submerge the fob in the ocean, or wash it in a washing machine. Saltwater can cause the circuit board to become shorted and eventually end up dying. It's not a good thing to let the fob get wet however, but don't give it up in the event that you accidentally drop it in water or fail to take it out of your pants pocket.

First take fiat punto key replacement off the fob. Before replacing the battery, clean the electronic chip with isopropyl or similar products. Then test the fob to verify if it is working. If the key doesn't work, it might need to be reset. This is usually handled by an auto locksmith or dealer.

If the key is older and has never been programmed to your car, it will likely need to be replaced completely. A professional locksmith for cars can do this job. The locksmith will need the key cut to match your vehicle's ignition. They'll also have to reprogram the fob for the system of your car. This is a cost-effective and quick procedure that can be completed the same day.

Receiver Module Issues


The 500 key fob could not function because it's out of range. The remote has a range of 30 feet. Therefore, should you be too far from your vehicle, it won't respond to your commands. You can fix this by moving the remote closer to your vehicle until it responds.

If you've replaced the coin battery (commonly known as"button" or "button" or "watch") and the fob isn't working It could be because of an internal circuit board problem. In the majority of cases, reprogramming your fob will resolve this issue. You can find the instructions for the majority of vehicles on YouTube or in the owner's guide.

It may be necessary to replace the metal clips that hold the coin batteries in the correct position. If they loose tension, it can prevent the battery from sitting properly and cause your remote to malfunction.

In rare instances, the fob could be out of connection with your vehicle as a result of hardware or software problems. This could cause a significant trouble, but you could frequently fix this issue by visiting a local dealer or auto locksmith to have them reprogram your fob. In some instances they may have to install the software again in your body control module, too.

Interference

Interference can also cause the key fob to not be able to receive or transmit the signal. This could happen if the key fob is close to an electronic radio transmitter (cell phones, radar detectors) or any other source of electromagnetic radiation. Other reasons the key fob could not function could be due to a weak connection to the buttons or the internal chip or water damage.

If your key fob suddenly stopped working, or you've tried everything at home to fix it (e.g. replacing the battery, reprogramming it and using the spare key fob, you could have a defective receiver module on your 500. The receiver module, located beneath the dashboard, detects radio frequency signals from your key fob. It converts the signals into electronic commands, which are then processed by the vehicle.

Luckily, there is an easy way to reset all of the onboard systems in your 500 keys, including the key fob. Disconnect the battery 12 volt for about 15 minutes by removing the negative cable and then the positive cable. Reconnect the battery. This will remove any remaining electrical charge and restart the car's computers. This could allow you to get your key fob working again. If the issue continues you should seek out an experienced technician. They will be able to identify the root cause of your issues.

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