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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 vehicle. There are a myriad of reasons the fob could stop working. This could be due to a dead battery, water damage, issues with the receiver module, and interference.





This listing is for an NEW replacement Fiat Flip Key Remote - similar to the Ilco brand that must be professionally programmed by a local locksmith (click here to search for a Locksmith Search). It includes lock, unlock, and trunk buttons.

Dead Coin Battery

The most frequent reason why your 500 key fob doesn't function is a dead battery. Modern key fobs have a very limited operating range and must be within only a few feet from the vehicle in order to function. If you're far from your vehicle, and you press the key fob button the car will not respond, and will display a "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 one from a reputable manufacturer like Panasonic, Duracell, or Energizer. They are typically available in your local hardware store, or online.

You can test the battery of your coin-cell by pressing the buttons while standing close to your Fiat 500. fiat ducato key fob parking lights should blink and the key fob should operate the lock and unlock switch.

If your fob's key doesn't work even after replacing the battery, there may be water damage which prevents it from connecting to the module inside your vehicle. Water damage can happen through a variety of methods, including a simple splash or submerging the key fob into saltwater at the beach. If you suspect that your fob was exposed to water, you can try placing it in a dry rice bag to pull the moisture out. If this doesn't work, the fob might need to be reset by a professional locksmith or dealer.

Water Damage

Water damage can occur when you submerge the fob in the ocean, or wash it in a washer. Saltwater can cause the circuit board to short and eventually cease to function. It's not the best idea to let the fob get wet, but don't give it up in the event that you accidentally drop it in the water or don't take it out of your pants pocket.

First remove the battery from the fob. Clean the electronic chip using isopropyl alcohol or a similar product and dry it completely before replacing the battery. Check the fob to verify if it's functioning. If the fob doesn't work, it may have to be reprogrammed. This is typically handled by a dealer or professional auto locksmith.

If your key is older and has not been programmed for your vehicle it is necessary to replace it completely. This is a simple 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. They will also need to reprogram the fob for your vehicle's system. This is a low-cost and quick procedure that can be completed the same day.

Receiver Module Issues

One of the main reasons your 500 key fob may stop working is that it's simply out of range. The remote typically has 30 feet of range or less, and if it's too far away from your car it will not respond to your commands. It is possible to solve this problem by moving the remote closer to your car until it responds.

If your fob isn't working after replacing the battery in the coin, also called a "button", "watch" or "button", it could be due to a problem with the internal circuit board. Reprogramming your fob can resolve the issue. There are instructions on how to do this on the majority of automobiles by searching YouTube or consulting the owner's manual.

You may need to replace the metal retaining clips that keep the coin battery. If they loose tension, it can prevent the battery from sitting properly and cause your remote to malfunction.

In rare cases it is possible that the fob will become desync'd with your vehicle due to software issues or hardware issues. This can be a major issue, but you are able to usually resolve this issue by visiting a local dealer or auto locksmith to reprogram your fob. In some instances the software might require reinstallation in your body control modules.

Interference

In addition to a dead battery on a coin The key fob might not be able to transmit or receive a signal due to interference. This could occur if the key fob is in close proximity to a radio transmitter, like a cell phone or radar detector. The key fob might not function due to a bad connection 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 resolve it (e.g. You could have a malfunctioning 500 receiver module after you've tried replacing the battery, reprogramming, or using a spare key fob. The receiver module is located under the dash and picks up the radio frequency signals from the key fob. It transforms the signals into electronic commands, which are then processed by the vehicle.

Fortunately, there's an easy way to reset all on-board systems in your 500 and include the key fob. Disconnect the battery for 15 minutes by removing first the negative cable and then the positive cable. Then, reconnect the battery. This will remove any remaining electricity, and allow you to restart the computer of your car. This can help get your key fob to work again. If the problem persists it is recommended that you consult a certified technician. They will be able to identify the root of any problems.