Reasons Your Fiat 500 Key Fob Won't Work

A key fob with the fiat 500 spare key 500 number is a great way to open the doors and start the car. However, there are many reasons why the fob won't be functioning. This includes a dead battery, water damage, receiver modules issues, and interference.

This listing is for a NEW replacement Fiat Flip Key Remote that looks like the Ilco brand. It has to be professionally programmed (click here to find local locksmiths for your vehicle). Includes lock, unlock and trunk buttons.

Dead Coin Battery

A dead battery is the most frequent reason for your 500 key fob that isn't working. Key fobs of today have only a limited range of operation and must be within just a few inches of the vehicle in order to function. If you are far from your vehicle and press the keyfob button, it won't respond and display the message "Key Fob Not Detected".

If this occurs, replace the coin-cell battery (Part Number CR2032) with a new battery of a trusted brand like Panasonic Duracell or Energizer. They are typically available in your local hardware store, or online.

You can test the battery in the coin-cell by pressing the buttons while you're standing close to your Fiat 500. The parking lights will flash and the key fob will operate the lock and unlock switch.

If the key fob doesn't work after replacing the battery, it might have water damage that stops it from communicating with the receiver module in your car. Water damage can happen in a variety of ways, ranging from the slightest splash to submerging the fob in salt water at the beach. If you suspect your fob has been exposed to water, put it in a dry rice bag to pull the moisture out. If that doesn't work the fob might need to be reprogrammed by an experienced locksmith or dealer.

Water Damage

Water damage can happen if you submerge the fob in the ocean, or wash it in a washer. Saltwater can cause the circuit board to short and eventually fail. Getting the fob wet is not an ideal idea, but if you drop it in the water in a cup or do not remember to remove it from your pants pocket prior to running the washer Don't give up hope.

First take the battery off the fob. Clean the electronic chip with isopropyl or a similar product and dry it thoroughly before replacing the battery. Test the fob next to see if it is functioning. If the key isn't working, it may have to be reset. This is usually done by an auto locksmith or dealer.

If your key is older and is not programmed to work with your vehicle it is necessary to replace it completely. A professional locksmith for cars can do this job. The locksmith will require the key to be cut to match the car's ignition. The locksmith will also need to reprogram your fob in the vehicle's system. This is a cheap and quick process that could be completed the same day.

Receiver Module Issues

The 500 key fob you have may be inoperable because it's out of range. The remote's range is of 30 feet, so should you be too 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 starts responding.

If your fob won't work after you replace the battery inside the coin, which is also known as a "button", "watch" or "button" or "button", it could be a problem with the internal circuit board. Reprogramming your fob can resolve this issue. You can find the instructions for the majority of vehicles on YouTube or in the owner's manual.

You may need to replace the metal retaining clips that keep the battery of your coin in place. If they lose tension it could prevent your coin battery from being properly seated, causing your remote to malfunction.

In rare instances the fob could be disconnected from your vehicle due to software problems or hardware issues. This issue can be fixed by visiting your local auto-locksmith or dealer to reprogram your key fob. In some cases they might need to reinstall the program in your body control module, too.

Interference

Interference can also cause the key fob to not receive or transmit signals. This could happen when the key fob is in close proximity to a radio transmitter, such as a cell phone or radar detector. The key fob could not work because of a problem with the buttons or water damage, or damage to the internal chips.

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

There's a simple method to reset the 500's in-board system, including the keyfob. Disconnect the battery for 15 minutes by removing first the negative cable, then the positive cable. Then reconnect the battery. This will remove any residual electricity and restart the car's computers, which could help get your key fob working again. If the issue persists it is recommended that you consult a certified technician. They can identify the root cause of any issues.