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Reasons Your Fiat 500 Key Fob Won't Work

A Fiat 500 key fob makes it easy to open doors and start your vehicle. There are a variety of reasons why the fob won't work. This could be due to a dead coin-battery, water damage, receiver modules issues, and interference.

This listing is for a NEW replacement Fiat Flip Key Remote that is similar to the Ilco brand. It needs to be professionally programmed (click here to find local locksmiths for automotive locksmiths). It comes with lock, unlock and trunk buttons.

Dead Coin Battery

A dead battery is the main reason for your 500 key fob being inoperative. Modern key fobs come with a limited range of operation, and should be within just a few feet of the vehicle to function. If you're far from your vehicle and press the key fob button, the car won't be able to respond, and will display the "Key Fob Not Detected" message in the instrument cluster.


If this occurs then replace the battery for your coin-cell (Part Number CR2032) by a fresh one of a reputable brand like Panasonic Duracell or Energizer. They are available at your local hardware store, or on the internet.

After you've changed the battery on the coin cell You can test it by standing near your Fiat 500 and pressing the buttons. The parking lights should light up 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, which prevents it from communicating with the receiver module inside your vehicle. Water damage can happen in a variety of ways, from the slightest splash to submerging the fob into salt water at the beach. If you suspect your fob was exposed to water, you can try placing it in a dry rice bag to pull the moisture back out. If this doesn't work your fob will probably need to be reset by an experienced locksmith or dealer.

Water Damage

Damage to the water supply can occur if you immerse the fob in the ocean, or wash it in a washing machine. Saltwater poses a particular risk to the fob's circuit board which causes it to short out and eventually end up dying. Getting the fob wet is not an option but if you accidentally drop it in an empty cup of water, or fail to take it out of your pocket before you run the washing machine do not give up hope.

Remove the battery first. Before replacing the battery, clean the electronic chip using isopropyl or another similar product. Then try the fob and see if it works. If the key isn't working then it might need to be reprogrammed. This is usually handled by a professional or dealer auto locksmith.

If the key is a newer model and was not programmed to your car It will most likely need to be replaced completely. A professional locksmith in the automotive industry can do this job. The locksmith will require the key to be cut to match your car's ignition. They'll also have to program the fob into the car's system. This is a cost-effective and quick process that could be completed on the same day.

Receiver Module Issues

The 500 key fob could not function because it's out of range. The remote typically has an operating range of 30 feet or less and if it's far from your car, it won't respond to your commands. It is possible to solve this problem by moving the remote closer to your car until it responds.

If you've replaced the coin battery (commonly known as"button" or "button" or "watch") and your fob doesn't function it could be due to an internal circuit board problem. In the majority of cases, reprogramming your fob will fix the issue. You can find the instructions on how to do this for most vehicles by searching YouTube or checking out the owner's manual.

You may have to replace the metal retaining clips that hold the coin battery. If they loose tension, it could prevent your coin battery from being properly seated, causing your remote to malfunction.

In rare instances the fob might become disconnected from your vehicle because of software or hardware issues. This can be a major issue, but you are able to frequently fix this issue by visiting a local dealer or auto locksmith to have them reprogram your fob for you. In certain instances it may be necessary to install the software again in your body control module, too.

fiat 500 key replacement

In addition to a dead battery on a coin, the key fob may not be able to receive or transmit the signal due to interference. This could happen when the key fob is in close proximity to a radio transmitter, like a cell phone or radar detector. Other reasons why the key fob could not function could be due to a weak connection to the buttons and internal chip or water damage.

If your key fob suddenly stopped working, or if you have tried everything at home to solve the issue (e.g. It could be a defective 500 receiver module after you've tried replacing the battery, reprogramming, or using a spare key fob. The receiver module, which is located under the dashboard, detects radio frequency signals from your key fob. It converts them into electronic commands that the vehicle interprets.

There's a simple method to reset the 500's on-board system, including the keyfob. Disconnect the 12 volt battery for approximately 15 minutes by disconnecting the negative cable first then the positive cable. Then reconnect the battery. This will erase any remaining electricity, and allow you to restart the car's computer. This could help you get your key fob to function again. If the problem persists, you should consult an experienced technician. They'll be able to determine the root of your problem.

Homepage: https://www.thekeylab.co.uk/fiat-car-keys/