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Reasons Your Fiat 500 Key Fob Won't Work

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

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Dead Coin Battery

The most frequent reason that the 500 key fob won't function is due to an inactive battery. Modern key fobs operate with a restricted operating range, and must be within just a few feet of the vehicle in order to function. If you're far from your vehicle and press the keyfob button it will not respond and display the message "Key Fob Not Detected".

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

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

If the key fob won't work after replacing the battery, it may have water damage that prevents it from connecting to the receiver module inside your car. Water damage can occur in many ways, such as simply splashing or submerging the key fob into saltwater at the beach. If you suspect that your fob was exposed to water, try putting it in a dry rice bag to draw the moisture out. If this doesn't work, you will require your fob to be replaced by an auto locksmith or dealer.

Water Damage

Water damage can occur when you immerse the fob into the ocean or wash it in a machine. Saltwater can cause the circuit board to become shorted and eventually cease to function. It's not a good idea to let the fob get wet however, don't give it up even if you accidentally drop the fob in water or forget to take it out of your pocket.

First remove the battery from the fob. Clean the electronic chip with isopropyl alcohol or another similar product and dry it thoroughly before replacing the battery. Check www.thekeylab.co.uk to determine if it's functioning. If the key isn't working it could need to be programmed again. This is usually handled by an auto locksmith or dealer.

If the key is a newer model and has never been programmed to your vehicle it is likely to need to be replaced completely. This is a simple process which can be accomplished by a professional automotive locksmith. The locksmith will require the key cut to match your car's ignition. They'll also need to program the fob into the system of your car. This is a fast and inexpensive process that is usually completed on the same day.

Receiver Module Issues

One of the simplest reasons why your 500 key fob could stop functioning is that it's out of range. The remote typically has a range of 30 feet or less and if it's far from your vehicle, it will not respond to your commands. It can be solved by moving it closer to your vehicle until it begins responding.

If your fob doesn't work after you replace the battery for the coin, also called a "button", "watch" or "button", it may be due to a malfunction on the internal circuit board. Reprogramming the fob usually resolves this problem. 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 clips that hold the coin battery. If they loose tension, it could prevent the coin battery from being seated properly and can cause the remote to malfunction.

In rare instances, the fob may become desync'd with your vehicle due to software issues or hardware issues. This can be a major trouble, but you could often fix this by visiting a local dealer or auto locksmith to reprogram your fob. In some instances 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 the signal due to interference. This could happen when the keyfob is located in close proximity to a radio transmitter like a cell phone or radar detector. The key fob may not function due to a poor connection to the buttons water damage or damage to the internal chips.

If your key fob suddenly stopped working, or you've tried everything at home to resolve it (e.g. It could be a defective 500 receiver module If you've tried replacing it with a battery, reprogramming, and 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 transforms the signals into electronic commands that are then read by the vehicle.

There is a straightforward method to reset the 500's on-board system, including the keyfob. Disconnect the 12 volt battery for about 15 minutes by disconnecting the negative cable first then the positive cable. Reconnect the battery. This will erase any remaining electricity, and allow you to restart the computer in your car. This will help you get your key fob to work again. If the issue persists, you should seek the advice of an expert technician. They will be able to determine the exact cause of your problem.