Reasons Your Fiat 500 Key Fob Won't Work
A key fob for the Fiat 500 allows you to easily open doors and start your vehicle. However, there are a variety of reasons why the fob won't be working. This includes a dead coin-battery, water damage, problems with the receiver modules, and interference.
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Dead Coin Battery
A dead battery is probably the most common reason for your 500 key fob being inoperative. Modern key fobs have a limited range of operation, and should be within a few feet of the vehicle in order to function. If you're far from your vehicle and you press the keyfob button, it won't respond and display the message "Key Fob Not Detected".
If this happens, replace the battery on your coin cell (Part number CR2032) with a fresh one from a reliable brand such as Panasonic, Duracell, or Energizer. You can typically find them at your local hardware store or online.
You can test the battery on your coin-cell by pressing the buttons while you are standing close to your Fiat 500. The car will flash its parking lights and the key fob should be able to operate the lock and unlock switches.
If the key fob won't work after replacing the battery, it could be damaged by water, which prevents it from connecting to the receiver module in your car. Water damage can occur in a number of ways, from the slightest splash to submerging the fob in salt water at the beach. If you suspect that your fob was exposed to water, try placing it in a dry rice bag to draw the moisture back out. If that doesn't work, your fob will probably require reprogramming by an experienced auto locksmith or dealer.
Water Damage
Although the fob is equipped with rubber seals that keep water out of the chip's electronic circuit and out of the ocean or washing it in a machine could cause water damage. Saltwater is especially dangerous to the circuit board of the fob and can cause it to short out and eventually end up dying. It's not good to let the fob get wet however, but don't give it up if you accidentally drop it in water or fail to remove it from your pocket.
Take the battery off first. Clean the electronic chip using isopropyl alcohol or another similar product and then dry it thoroughly before replacing the battery. Check the fob to check if it's working. If the key still doesn't work, it might need to be reprogrammed. This is usually done by an auto locksmith or dealer.
If your key is old and not programmed to work with your vehicle, you will need to replace it completely. This is a simple process that can be carried out 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 in the system of your car. This is a cheap and fast process that can be completed on the same day.
Receiver Module Issues
The 500 key fob could not work because it's out of range. The remote has a maximum range of 30 feet, so if you are too far away from your vehicle it won't be able to respond to your commands. You can easily solve this issue by moving the remote closer to your car until it responds.
If your fob doesn't work after replacing the coin battery, also known as a "button", "watch" or "button" or "button", it could be due to a problem with the internal circuit board. Reprogramming the fob typically resolves this issue. replacement fiat 500 key can find the steps for most vehicles on YouTube or in the owner's manual.
It is possible to replace the metal clips that keep the coin battery. If they lose tension they could stop the coin battery from being properly seated and cause your remote to malfunction.
In rare cases the fob could be out of sync with your vehicle because due to hardware or software issues. This can be a major problem, but you can usually resolve this issue by visiting a local dealer or auto locksmith to reprogram your fob. In certain situations they might need to install the software again in your body control module, as well.
Interference
In addition to a dead coin battery The key fob may not be able to transmit or receive a signal due to interference. This can happen when the key fob is located near a radio transmitter (cell phones or radar detectors) or any other source of electromagnetic radiation. The key fob could not work 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 fix it (e.g. replacing the battery, reprogramming it and using the spare key fob, you might have a damaged receiver module on your 500. The receiver module, located beneath the dashboard, is able to pick up radio frequency signals from your key fob. It then converts them into electronic commands that the vehicle interprets.
There is a straightforward method to reset the 500's onboard system, including the keyfob. Disconnect the 12 volt battery for about 15 minutes by disconnecting the negative cable first then the positive cable. Reconnect the battery. This will remove any remaining electrical charge, and then restart the car's computer. This could help you get your key fob working again. If the problem persists you should speak with an experienced technician. They will be able diagnose the exact cause of issues.