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. However, there are many reasons why the fob may stop working. This could be due to a dead coin-battery water damage, problems with receiver modules, as well as interference.

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Dead Coin Battery

The most frequent reason that your 500 key fob doesn't function is an inactive battery. Modern key fobs have a very limited operating range and should be within a few feet of the vehicle to function. If you are further away from your vehicle and press the keyfob button it will not respond and display the message "Key Fob Not Detected".

If this happens, replace the battery on your coin cell (Part number CR2032) with a new one from a trusted brand like Panasonic, Duracell, or Energizer. They are typically available in your local hardware store, or online.

After you've replaced the battery of your coin cell You can test it by standing in front of your fiat scudo key replacement 500 and pressing the buttons. The car should flash its parking lights, and the key fob should work the lock and unlock switches.

If your fob's key isn't working after replacing the battery, it might be water damage that hinders it from interacting with the module in your vehicle. Water damage can happen in a number of ways, from small splashes to submerging the fob salt water at the beach. If you suspect that your fob was exposed to water, try placing it in a dry rice bag to pull the moisture out. If this does not work, you'll require your fob to be replaced by an auto locksmith or dealer.

Water Damage

Damage to the water supply can occur if you immerse the fob into the ocean or wash it in a machine. Saltwater is particularly dangerous to the fob's circuit board which lost key to car fiat causes it to short out and eventually die. It's not a good idea to get the fob wet, but don't give it up if you accidentally drop it in water or forget to 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 then dry it completely before replacing the battery. Check the fob again to see if it is working. If the key does not work, it might need to be reset. This is usually handled by a professional or dealer auto locksmith.

If your key is a bit older and has not been programmed to work with your vehicle it is necessary to replace it completely. This is a simple process that can be handled by a professional locksmith for automotive use. The locksmith will require the key cut to match the car's ignition. The locksmith will also need to reprogram the fob into the vehicle's system. This is an affordable and quick 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 has a range of 30 feet. So in the event that you are far away from your vehicle it won't be able to respond to your commands. This can easily be resolved by moving it closer to your vehicle until it begins responding.

If you've replaced the battery in your coin (commonly called"button" or "button" or "watch") and your fob still won't work it could be due to an internal circuit board problem. In most cases, reprogramming the fob will fix the problem. The instructions are available for most vehicles on YouTube or in the owner's manual.

You may need to replace the metal clips that keep the battery of your coin in place. If they loose tension they could stop the battery from being seated properly and can cause your remote to malfunction.

In rare cases the fob might become desync'd with your vehicle due to software problems 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. In some cases they might need to reinstall the software on your body control module too.

Interference

In addition to a dead battery on a coin, the key fob may not be receiving or transmitting an signal due to interference. This can occur when the keyfob is in close proximity to a radio transmitter such as a cell phone or radar detector. The key fob could not function due to a poor connection with the buttons, water damage or damage to the internal chips.

If the key fob failed to work one day without notice or after trying every option at home to fix it e.g. replacing batteries, reprogramming or using the spare fiat 500 key (read the article) key fob, you might have a malfunctioning receiver module on your 500. The receiver module, located under the dashboard, receives radio frequency signals from your key fob. It converts the signals into electronic commands which are then translated by the vehicle.

Fortunately, there's an easy way to reset all of the on-board systems in your 500 device, including 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 clear out any remaining electricity and then restart the car's computers, which could allow you to get your key fob working again. If the issue persists you should speak with an expert certified technician. They will be able to identify the root cause of any problems.