Reasons Your Fiat 500 Key Fob Won't Work
A Fiat 500 key fob makes it simple to open doors and start your car. However, there are many reasons why the key fob might stop functioning. These include a dead battery or damaged receiver module, water damage problems, and interference.
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Dead Coin Battery
A dead battery is the most frequent reason for your 500 key fob not working. Modern key fobs offer a limited range of operation and must be within a few inches of the vehicle in order to work. If you are far from your vehicle and you hit the keyfob, it won't respond and display the message "Key Fob Not Detected".
If this happens you need to replace the battery of your coin-cell (Part Number CR2032) by a fresh one of a reliable brand, such as Panasonic Duracell or Energizer. They are usually available in your local hardware store, or online.
You can test the coin-cell battery by pressing the buttons while standing near your Fiat 500. The parking lights will flash and the key fob will operate the lock and unlock switch.
If the key fob won't work after replacing the battery, it may be damaged by water that blocks it from connecting to the receiver module in your vehicle. Water damage can happen in a variety of ways, ranging from an accidental splash to submerging your fob in salt water at the beach. If you think your fob was exposed to water, place it in a rice bag to draw out the moisture. If this fails, you'll need to have the fob changed by an auto locksmith or dealer.
Water Damage
While the fob has some rubber seals to 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 circuit board of the fob and can cause it to short out and eventually die. It's not the best idea to get the fob wet however, don't give it up even if you accidentally drop the fob in water or forget to take it out of your pants pocket.
First remove the battery from the fob. Before replacing the battery, clean the electronic chip with isopropyl, or a similar product. Check the fob to verify if it's working. If the fob doesn't work it could need to be reprogrammed. This is usually handled by a professional or dealer auto locksmith.
If the key you have is older and is not programmed to work with your vehicle then you'll need to replace it completely. A professional locksmith for automotive can carry out this simple task. The locksmith will need to cut the key to match the ignition of your car. They will also need to program the fob into your car's system. This is a cost-effective and fast process that can be completed within the same day.
Receiver Module Issues
The 500 key fob you have may be inoperable because it's out of range. The remote usually has 30 feet of range or less, and if it's too far from your car, it won't respond to your commands. It's easy to solve this problem 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 won't work it could be due to an internal circuit board issue. In the majority of cases, reprogramming your fob will resolve this issue. You can find directions on how to do this on the majority of automobiles by searching YouTube or looking through the owner's manual.
It's possible that you need to replace the metal clips that keep the coin battery in place. If they loose tension it can prevent the coin battery from being seated properly and can cause your remote to malfunction.
In rare cases the fob could be desync'd with your vehicle due to software or hardware issues. This can cause a major headache, but you can frequently fix this issue by visiting an auto locksmith to have them reprogram your fob for you. In some cases the software may require reinstallation to your body control modules.
Interference
Interference can also cause the key fob not to receive or transmit an signal. This could happen when the key fob is in close proximity to a radio transmitter, like a cellphone or radar detector. The key fob might not work because of a problem with the buttons water damage or damage to the internal chips.
If the key fob stopped working one day without notice or after trying every option at home to solve it e.g. You may have a faulty 500 receiver module after you've tried replacing the battery, reprogramming, or using a spare key fob. The receiver module, located beneath the dashboard, picks up radio frequency signals from your key fob. It converts the signals into electronic commands that are then interpreted by the vehicle.
There is a simple way to reset the 500's internal system, including the keyfob. Disconnect the battery for 15 minutes, removing first the negative cable and then the positive cable. Then reconnect the battery. replacement fiat key fob will get rid of any remaining electricity and then restart the car's computers, which can help you the key fob to function again. If the issue persists it is recommended that you consult an expert technician. They'll be able determine the exact cause of your problem.