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Reasons Your Fiat 500 Key Fob Won't Work

A key fob with the Fiat 500 key fob programming 500 number is a great way to unlock the doors and start the car. There are many reasons why the fob won't work. This could be due to a dead coin battery water damage, receiver module issues, and interference.

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

Dead Coin Battery

A dead battery is the most frequent reason for your 500 key fob not functioning. Modern key fobs have a limited operating range and must be within just a few feet of the car to operate. If you're far from your car and press the keyfob button it won't 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 manufacturer like Panasonic, Duracell, or Energizer. They are available at your local hardware store or online.

You can test the battery on your coin-cell by pressing the buttons while standing near your Fiat 500. The parking lights will flash and the key fob should operate the lock and unlock switches.

If the key fob won'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 happen in a variety of ways, ranging from a light splash to submerging the fob salt water at the beach. If you suspect your fob has been exposed to water, try putting it in a dry rice bag to pull the moisture out. If this doesn't work, you will have to get your fob reprogrammed either by an auto locksmith or dealer.

Water Damage

While the fob has some rubber seals to keep water out of the electronic chip inside, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to become shorted and eventually cease to function. Getting the fob wet is not an ideal choice but if you accidentally drop it into the water in a cup or do not remember to take it out of your pocket before you run the washing machine and Fiat 500 Key fob programming you don't have a chance, don't give in.

Take the battery off first. Before replacing the battery, clean the electronic chip with isopropyl or similar products. Test the fob next to verify if it's working. If the key isn't working, it may need to be changed. This is usually handled by an auto locksmith or dealer.

If your key is old and is not programmed for your vehicle, you will need to replace it completely. This is a simple procedure that can be handled by a professional locksmith for automotive use. The locksmith will need to cut the key to match the ignition on your vehicle. They'll also have to reprogram the fob in your vehicle's system. This is a fast and cost-effective procedure that can be completed the next day.

Receiver Module Issues

The 500 key fob you have may not work because it's out of range. The remote typically has a range of 30 feet or less and if it's far away from your car it won't respond to your commands. This can be fixed by moving closer to your vehicle until it starts responding.

If your fob does not work after replacing the battery inside the coin, which is also called a "button", "watch" or "button" It could be due to a problem with the internal circuit board. In the majority of cases, reprogramming your fob will resolve this issue. There are instructions on how to program fiat 500 key fob to do this for most vehicles by searching YouTube or reading the owner's manual.

It could be necessary to replace the clips made of metal that hold the coin batteries in place. If they become loose, it may prevent your battery from sitting properly and cause your remote to malfunction.

In rare instances, the fob may become desync'd with your vehicle because of software or hardware issues. You can fix this issue by visiting your local auto-locksmith or dealer to reprogram your key fob. In certain situations it may be necessary to install the software again in your body control module, too.

Interference

Interference can also cause the key fob to be unable to receive or transmit the signal. This may happen if the keyfob is located in close proximity to a radio transmitter, like a cellphone or radar detector. The key fob could not work because of a problem with the buttons, water damage or damage to the internal chips.

If the key fob failed to work one day out of the blue and you've tried every option at home to fix it e.g. It could be a defective 500 receiver module after you've tried replacing the battery, reprogramming, or using an alternative key fob. The receiver module is situated under the dash and receives the radio frequency signals from the key fob. It converts the signals into electronic commands which are then translated by the vehicle.

There is a straightforward method to reset the 500's on-board system including the keyfob. Disconnect the battery for 15 minutes by removing first the negative cable and then the positive cable. Then reconnect the battery. This will clear any residual electric current, and also restart the computer in your car. This could help you get your key fob to work again. If the problem persists you should seek out an expert technician. They'll be able to diagnose the exact cause of your problem.