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The Worst Advice We've Heard About Fiat Panda Key Fob Replacement
Reasons Your Fiat 500 Key Fob Won't Work

A key fob from Fiat 500 makes it easy to open doors and start your vehicle. However, there are many reasons why the fob won't be functioning. These include a dead battery or damaged receiver module, water damage issues, and interfering.

This listing is for an NEW replacement Fiat Flip Key Remote - similar to the Ilco brand that needs to be programmed professionally by a local locksmith (click here for Locksmith Search). Includes lock, unlock, and trunk buttons.

Dead Coin Battery

A dead battery is the most common cause of your 500 key fob not working. Modern key fobs come with a limited operating range and should be within a few feet of the vehicle to operate. If you're far from your vehicle, and you 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 happens then replace the battery for your coin-cell (Part Number CR2032) by a fresh one of a reputable brand like Panasonic Duracell or Energizer. You can find them at your local hardware store, or online.

You can test the battery of your coin-cell by pressing the buttons while standing near your Fiat 500. The car will blink its parking lights and the key fob should be able to operate the lock and unlock buttons.

If the fob's key doesn't work after replacing the battery, it may be damaged by water that blocks it from connecting to the receiver module inside your car. Water damage can occur in a variety of ways, ranging from the slightest splash to submerging the fob salt water at the beach. If you suspect that your fob was exposed to water, you can try placing it in a dry rice bag to pull the moisture back out. If this isn't working, you'll need to have the fob replaced by an auto locksmith or a dealer.

Water Damage

The fob does have rubber seals that keep water from the chip's electronic circuit it, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater can cause the circuit board to short and eventually cease to function. It's not the best idea to let the fob get wet however, don't give it up in the event that you accidentally drop it in water, or fail to remove it from your pocket.

Remove the battery first. Before replacing the battery, clean the electronic chip with isopropyl or similar products. Then check the fob to verify if it is working. If fiat 500 key cover doesn't work, it might need to be changed. This is usually done by an auto locksmith or dealer.

If the key you have is older and not programmed for your vehicle then you'll need to replace it completely. This is a simple process which can be accomplished by a professional automotive locksmith. The locksmith will need the key cut to match the car's ignition. The locksmith will also have to reprogram the fob into the car's system. This is a cheap and quick process that could be completed the same day.

Receiver Module Issues

The 500 key fob could not function because it's out of range. The remote's range is of 30 feet. So in the event that you are far from your car, it won't respond to your commands. This can be easily fixed 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 the fob isn't working it could be due to an internal circuit board problem. Reprogramming your fob can resolve the issue. You can find the instructions for the majority of vehicles on YouTube or in the owner's guide.

It is possible to replace the metal clips that hold the coin batteries in the correct position. If they lose tension, it can stop your coin battery from sitting properly, causing your remote to malfunction.


In rare cases the fob could be out of the vehicle's sync because due to hardware or software issues. You can fix this issue by visiting your local auto-locksmith or dealer to reprogram your key fob. In certain situations they might need to reinstall the program in your body control module, as well.

Interference

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

If your key fob suddenly stopped working, or if you've tried everything at home to fix it (e.g. You could have a malfunctioning 500 receiver module if you've tried replacing the battery, reprogramming, and using an alternative key fob. The receiver module is situated under the dash and is able to pick up the radio frequency signals from the key fob. It transforms the signals into electronic commands that are then processed by the vehicle.

There's a simple method to reset the 500's onboard system, including the keyfob. Disconnect the battery 12 volt for approximately 15 minutes by removing the negative cable and then the positive cable. Then reconnect the battery. This will erase any remaining electrical charge, and then restart the computer of your car. This will help you get your key fob working again. If the issue continues you should speak with an expert certified technician. They will be able to determine the root of your problem.