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9 . What Your Parents Taught You About Fiat Panda Key Fob Replacement
Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 is a great way to open the doors and begin the car. There are a variety of reasons why the key fob might stop working. These include a dead battery water damage, receiver module issues, and interfering.

This listing is for an NEW replacement Fiat Flip Key Remote - an exact replica of the Ilco brand that must be programmed professionally by a local automotive locksmith (click here for Locksmith Search). It includes trunk, lock and unlock buttons.

Dead Coin Battery

The most frequent reason that your 500 key fob doesn't work is a dead battery. car key cover fiat 500 of today have limited operating range and must be within a few inches of the vehicle to work. If you're far away from your vehicle, and you press the key fob button, the car won't respond, and will display a "Key Fob Not Detected" message in the instrument cluster.

If this happens, simply replace the battery in the coin cell (Part number CR2032) with a brand new one from a reliable brand like Panasonic, Duracell, or Energizer. You can find them at your local hardware store, or online.

After you've changed the battery on the coin cell, you can test it by standing in front of your Fiat 500 and pressing the buttons. The car should flash its parking lights and the key fob will operate the lock and unlock buttons.

If your fob's key doesn't work even after replacing the battery, there may be water damage which is preventing it from interacting with the module in your vehicle. Water damage can occur in a variety of ways, from an accidental splash to submerging the fob in salt water at the beach. If you suspect your fob was exposed to water, try putting it in a dry rice bag to draw the moisture back out. If this does not work, you'll require your fob to be reprogrammed either by an auto locksmith or dealer.

Water Damage

Water damage can occur if you immerse the fob in the ocean, or wash it in a washing machine. Saltwater can cause the circuit board to short, and eventually fail. It's not a good idea to soak the fob in water however, but don't give it up if you accidentally drop it in water or forget to remove it from your pants pocket.

Remove the battery first. Clean the electronic chip with isopropyl ethanol or a similar product and dry it thoroughly before replacing the battery. Then try the fob and verify if it is working. If the fob doesn't work, it may have to be reprogrammed. This is usually done by a dealer or professional auto locksmith.


If the key is older and was not programmed to your vehicle It will most likely need to be replaced completely. A professional locksmith for cars can carry out this simple task. The locksmith must cut the key to match the ignition of your car. The locksmith will also need to reprogram your fob into the vehicle's system. It's a simple and inexpensive process that can usually be completed the next day.

Receiver Module Issues

One of the simplest reasons your 500 key fob won't be functioning is because it's out of range. The remote usually has 30 feet of range or less, and if it's too far away from your car it won't respond to your commands. You can remedy this by moving your remote closer to your vehicle until it responds.

If your fob isn't working after replacing the coin battery, also known as a "button", "watch" or "button", it could be a problem with the internal circuit board. Reprogramming your fob can resolve the issue. You can find the steps for most vehicles on YouTube or in the owner's guide.

You may have to replace the metal clips that hold the battery of your coin in place. If they loose tension, it may prevent your battery from being properly seated and cause your remote to malfunction.

In rare cases the fob could be desync'd with your vehicle because of software or hardware issues. This can be a major issue, but you are able to often fix this by visiting a local dealer or auto locksmith to reprogram your fob for you. In certain instances they might need to install the software again in your body control module, as well.

Interference

Interference can also cause the key fob to not receive or transmit the signal. This could happen when the keyfob is in close proximity to a radio transmitter, like a cell phone or radar detector. The key fob could not function due to a poor connection to the buttons, water damage or damage to the internal chips.

If the key fob suddenly stopped working, in the middle of the night, or after trying everything you can do at home to solve it e.g. You may have a faulty 500 receiver module if you've tried replacing the battery, reprogramming, and using a spare key fob. The receiver module is situated under the dash and picks up the radio frequency signals from the key fob. Then, it 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 taking off first the negative cable and then the positive cable. Reconnect the battery. This will clear out any remaining electricity and then restart the car's computers, which could help get your key fob working again. If the issue persists it is recommended that you consult an expert technician. They can identify the root cause of your issue.