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Reasons Your Fiat 500 Key Fob Won't Work

A key fob for Fiat 500 allows you to easily open doors and start your car. However, there are numerous reasons why the key fob might stop functioning. This could be due to a dead coin-battery water damage, issues with the receiver module, and interference.

This listing is for a NEW replacement Fiat Flip Key Remote that looks like the Ilco brand. It needs to be professionally programmed (click here to search for local locksmiths for your vehicle). It includes trunk, lock and unlock buttons.

Dead Coin Battery

The most frequent reason why the 500 key fob won't function is an inactive battery. Modern key fobs have a very limited operating range, and must be within only a few feet from the vehicle to operate. If you're not close to your vehicle and you press the key fob button, the car will not respond, and will display the "Key Fob Not Detected" message in the instrument cluster.

If this happens, replace the coin-cell battery (Part Number CR2032) by a brand new one of a reputable brand like Panasonic Duracell or Energizer. They are typically available at your local hardware store or online.

You can test the battery in the coin-cell by pressing the buttons while you are standing close to your fiat 500 electric key 500. The parking lights should light up and the key fob should operate the lock and unlock switches.

If the fob's remote doesn't function after replacing the battery, it may have water damage that prevents it from communicating with the receiver module in your vehicle. Water damage can happen in a variety of ways, such as an easy splash or submerging your key fob in saltwater at the beach. If you suspect that your fob was exposed to water, put it in a dry rice bag to draw the moisture out. If this doesn't work, your fob may need to be reset by a professional auto locksmith or by the dealer.

Water Damage

While the fob has some rubber seals that keep water from the chip's electronic circuit, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater is especially dangerous to the fob's circuit board, causing it to short out and eventually die. It's not a good idea to get the fob wet but don't give up in the event that you accidentally drop it in water or forget to remove it from your pants pocket.

First, remove the battery. Before replacing the battery, clean the electronic chip with isopropyl or a similar product. Next check the fob to check if it functions. If the key still doesn't work, it might need to be reprogrammed. This is usually done by an auto locksmith or dealer.

If the key is newer and has not been programmed to your vehicle It will most likely need to be replaced completely. This is a straightforward process that can be carried out by a professional automotive locksmith. The locksmith will need the key to be cut to match your vehicle's ignition. The locksmith will also have to reprogram your fob in the vehicle's system. This is a simple and affordable process that can be completed on the same day.

Receiver Module Issues

One of the simplest reasons why your 500 key fob may stop working is because it's out of range. The remote typically has an operating range of 30 feet or less and if it's far from your car, it won't respond to your commands. This can be fixed by moving it closer to your vehicle until it starts responding.

If you've replaced the battery on your coin (commonly known as a "button" or "watch") and the fob won't work it could be due to an internal circuit board problem. In the majority of cases, reprogramming your fob will resolve this problem. There are instructions on How Much Is A New Fiat 500 Key to do this for all automobiles by searching YouTube or How much is a new Fiat 500 key looking through the owner's manual.

It's possible that you need to replace the metal clips that hold the battery of your coin in place. If they lose tension it could prevent your coin battery from sitting properly and cause your remote to malfunction.

In rare instances, the fob might be out of connection with your vehicle as a result of software or hardware problems. This can cause a major problem, but you can frequently fix this issue by visiting an auto locksmith to have them reprogram your fob. In some instances, the software may also require reinstallation into your body control modules.

Interference

Interference can also cause the key fob to not be able to receive or transmit an signal. This could happen when the keyfob is located in close proximity to a radio transmitter like a cell phone or radar detector. The key fob could not function because of a problem with the buttons water damage or damage to the internal chips.

If your key fob suddenly stopped working, or if you've tried everything at home to fix it (e.g. You might have a damaged 500 receiver module if you've tried replacing the battery, reprogramming, and using an alternative key fob. The receiver module is situated under the dash and is able to pick up the radio frequency signals from the key fob. It transforms the signals into electronic commands, which are then read by the vehicle.

There's a simple method to reset the 500's in-board system including the keyfob. Disconnect the battery 12 volt for approximately 15 minutes by removing the negative cable and then the positive cable. Then, reconnect the battery. This will eliminate any remaining electrical charge and restart the car's computer system, which can help get your key fob working again. If the issue persists, you should consult an expert technician. They will be able to determine the exact cause of your issue.