Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the fiat 500 keys 500 is a great way to unlock the doors and start the car. However, there are a variety of reasons the fob could stop working. It could be due to a dead battery or damage to the receiver module, issues, and interfering.

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Dead Coin Battery

A dead battery is the main cause of your 500 key fob not functioning. Modern key fobs have a very limited operating range, and must be within some feet of the vehicle to function. If you're far away from your vehicle and you press the key fob button, the car won't 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 trusted brand such as Panasonic Duracell or Energizer. They are available at the local hardware store or on the internet.

You can test the battery on your coin-cell by pressing the buttons while standing close to your fiat 500 key fob replacement 500. The car will blink its parking lights and the key fob should work the lock and unlock switches.

If your fob's key does not work after replacing the battery, it may be water damage which has prevented it from connecting to the module in your vehicle. Water damage can occur in a variety of ways, ranging from small splashes to submerging the fob in salt water at the beach. If you suspect that your fob was exposed to water, you can place it in a bag of rice to draw out the moisture. If that doesn't work your fob will probably require reprogramming by an experienced locksmith or dealer.

Water Damage

Water damage can occur if you immerse the fob into the ocean, or wash it in a washer. Saltwater can cause the circuit board to short and then die. It's not the best idea to get the fob wet however, but don't give it up when you accidentally drop it in water, or fail to remove it from your pocket.

Take the battery off first. Before replacing the battery clean the electronic chip with isopropyl, or a similar product. Check the fob again to see if it is working. If the fob doesn't work, it may need to be reset. This is typically done by a professional or dealer auto locksmith.

If the key is older and was not programmed to your car it is likely to need to be replaced completely. This is a simple process that can be carried out by a professional automotive locksmith. The locksmith will need to cut the key to match the ignition of your car. They'll also need to reprogram the fob to the car's system. This is a low-cost and fast process that can be completed in the same day.

Receiver Module Issues

One of the most common reasons why your 500 key fob won't be functioning is that it's out of range. The remote typically has an operating range of 30 feet or less and if it's far from your vehicle, it won't respond to your commands. This can be fixed by moving closer to your vehicle until it starts responding.

If your fob doesn't work after you replace the battery in the coin, also called a "button", "watch" or "button", it may be due to a malfunction on the internal circuit board. Reprogramming the fob is usually the solution to this issue. You can find the steps for most vehicles on YouTube or in the owner's guide.

It is possible to replace the metal clips that hold the battery of your coin in place. If they lose tension it can prevent your coin battery from sitting properly and cause your remote to malfunction.

In rare instances, the fob can become out of alignment with your vehicle because of software or hardware problems. This issue can be fixed by visiting your local auto-locksmith or dealer to reprogram your key fob. In certain situations, they may need to reinstall the software on your body control module, too.

Interference

In addition to a dead battery on a coin The key fob might not be able to receive or transmit the signal due to interference. This could happen when the keyfob's location is in close proximity to a radio transmitter, such as a cell phone or radar detector. The key fob may not work due to a poor connection to the buttons or water damage, or damage to the internal chips.

If your key fob suddenly stopped working, or you've tried everything at home to solve the issue (e.g. You might have a damaged 500 receiver module in the event that you've tried replacing the battery, reprogramming it, or using an alternative key fob. The receiver module is located under the dash and is able to pick up the radio frequency signals from the key fob. It converts the signals into electronic commands which are then interpreted by the vehicle.

Fortunately, there's an easy way to reset all of the on-board systems in your 500 keys, including the key fob. Disconnect the battery of 12 volts for about 15 minutes, by removing the negative cable and then the positive cable. Reconnect the battery. This will erase any remaining electric current, and also restart the computer in your car. This could help you get your key fob to work again. If the issue continues, you should consult an expert certified technician. They will be able diagnose the root of any problems.