Reasons Your Fiat 500 Key Fob Won't Work

A Fiat 500 key fob allows you to easily open doors and start your car. There are a myriad of reasons the fob won't work. This includes a dead battery water damage, problems with the receiver modules, and interference.

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Dead Coin Battery

The most common reason your 500 key fob will not work is an inactive battery. Modern key fobs have a very limited range of operation, and should be within just a few feet of the vehicle in order to function. If you are further away from your vehicle and you push the keyfob button it will not respond, and display the message "Key Fob Not Detected".

If this happens, replace the battery of your coin cell (Part number CR2032) by a new one from a reputable brand such as Panasonic, Duracell, or Energizer. They are typically available at 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 keys 500. The car will flash its parking lights and the key fob should work the lock and unlock switches.

If the key fob doesn't function after replacing the battery, it may be damaged by water that blocks it from communicating with the receiver module inside your vehicle. Water damage can occur in a number of ways, ranging from small splashes to submerging the fob in salt water at the beach. If you suspect your fob was exposed to water, try putting it in a dry rice bag to draw the moisture out. If this fails, you'll need to have your fob replaced by an auto locksmith or a dealer.

Water Damage

Although the fob is equipped with rubber seals to keep water from the chip's electronic circuit and out of the ocean or washing it in a machine can cause water damage. Saltwater can cause the circuit board to short, and eventually die. It's not good to let the fob get wet but don't give up in the event that you accidentally drop it in water or fail to take it out of your pants pocket.

First, remove the battery from the fob. Clean the electronic chip with isopropyl ethanol or a similar product and dry it completely before replacing the battery. Check the fob again to determine if it's working. If the fob doesn't work, it may have to be changed. This is usually handled by a dealer or professional auto locksmith.

If the key is newer and has never been programmed to your vehicle it is likely to need to be replaced completely. A professional locksmith in the automotive industry can complete this simple process. The locksmith will need the key to be cut to match the car's ignition. They will also need to program the fob into your car's system. This is a cost-effective and quick procedure that can be completed in the same day.

Receiver Module Issues

The 500 key fob could stop working because it is out of range. The remote's range is of 30 feet. So should you be too far away from your vehicle it won't be able to respond to your commands. This can be fixed by moving it closer to your vehicle until it begins responding.

If your fob doesn't work after replacing the battery inside the coin, which is also known as a "button", "watch" or "button", it may be due to a malfunction on the internal circuit board. In the majority of cases, reprogramming your fob will resolve this issue. You can find instructions on how to do this for the majority of vehicles by searching YouTube or looking through the owner's manual.

You may have to replace the metal clips that keep the battery of your coin in place. If they loose tension, it could hinder the battery from sitting properly and could cause the remote to malfunction.

In rare cases, the fob may become disconnected from your vehicle due to software problems or hardware issues. This issue can be fixed by visiting your local auto-locksmith or dealer to reprogram your key fob. In certain situations they may have to reinstall the software in your body control module as well.

Interference

In addition to a dead coin battery The key fob may not be receiving or transmitting a signal due to interference. This could happen if the key fob is close to a radio transmitter (cell phones and radar detectors) or another source of electromagnetic radiation. The key fob may not work because of a problem to the buttons water damage or damage to the internal chips.

If the key fob been unable to function for a while in the middle of the night or even after trying everything you can at home to fix it e.g. You might have a damaged 500 receiver module if you've tried replacing the battery, reprogramming it, or 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 to electronic commands that the vehicle interprets.

Fortunately, there's an easy method to reset every single system on board in your 500, including the key fob. Disconnect the battery for 15 minutes, removing first the negative cable and then the positive cable. Reconnect the battery. This will get rid of any remaining electricity and restart the car's computers. This can help you the key fob to function again. If the problem persists you should seek the advice of an expert technician. They will be able to identify the root cause of your issues.