9 Lessons Your Parents Teach 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 convenient method to unlock the doors and start the car. However, there are numerous reasons why the fob may stop working. This could be due to a dead coin battery damaged receiver module, water damage problems, and interference.

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Dead Coin Battery

A dead battery is probably the most common reason for your 500 key fob that isn't working. Modern key fobs operate with a limited operating range, and must be within some 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 an "Key Fob Not Detected" message in the instrument cluster.

If this occurs you need to replace the battery of your coin-cell (Part Number CR2032) by a fresh one from a reputable brand such as Panasonic Duracell or Energizer. They are available at your local hardware store or online.

After you've replaced the coin cell battery you can test it by standing in front of your fiat 500 spare key 500 and pressing the buttons. The car should blink its parking lights and the key fob should operate the lock and unlock buttons.

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 car. Water damage can occur in many ways, such as an easy splash or submerging your key fob in saltwater at the beach. If you suspect that your fob was exposed to water, put it in a dry rice bag to pull the moisture back out. If that doesn't work the fob might require reprogramming by an experienced auto locksmith or by the dealer.

Water Damage

Water damage can occur if you immerse the fob into the ocean, or wash it in a washer. Saltwater poses a particular risk to the fob's circuit board, causing it to short out and eventually end up dying. It's not a good thing to soak the fob in water but don't give up when you accidentally drop it in water or forget to take it out of your pocket.

First remove the battery from the fob. Before replacing the battery clean the electronic chip using isopropyl or another similar product. Check the fob to see if it is functioning. If the key still doesn't work, it may have to be programmed again. This is usually handled by a dealer or professional auto locksmith.

If your key is old and not programmed for your car, you will need to replace it completely. This is an easy process which can be accomplished by a professional locksmith for automotive use. The locksmith will need to cut the key to match the ignition in your vehicle. They'll also need to reprogram the fob in the car's system. This is a fast and inexpensive process that can be completed on the same day.

Receiver Module Issues

Your 500 key fob may not work because it's out of range. The remote's range is of 30 feet. Therefore, should you be too far away from your vehicle it won't be able to respond to your commands. It's easy to remedy this by moving your remote closer to your car until it responds.

If your fob does not work after replacing the coin battery, also known as a "button", "watch" or "button" it could be due to an issue with the circuit board inside. Reprogramming the fob is usually the solution to the issue. The instructions are available for the majority of vehicles on YouTube or in the owner's manual.

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

In rare instances, the fob may be out of alignment with your vehicle because due to hardware or software issues. You can fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In certain instances they may have to reinstall the software on your body control module, too.

Interference

Interference can also cause the key fob to not be able to receive or transmit the signal. This could occur if the key fob is located near radio transmitters (cell phones or radar detectors) or another source of electromagnetic radiation. The key fob may not function because of a weak connection to the buttons 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. replacing the battery, reprogramming, and using the spare key fob, you might have a faulty receiver module on your 500. The receiver module, which is located under the dashboard, detects radio frequency signals from your key fob. It converts the signals into electronic commands, which are then processed by the vehicle.

Fortunately, there's an easy method of resetting every single system on board in your 500, including the key fob. Disconnect the battery of 12 volts for about 15 minutes by disconnecting the negative cable first then the positive cable. Reconnect the battery. This will remove any remaining electric current, and also restart the car's computer. This can help you get your key fob working again. If the issue persists, you should consult an expert certified technician. They will be able to diagnose the exact cause of your issue.