Reasons Your Fiat 500 Key Fob Won't Work

A fiat 500 car key cover 500 key fob makes it simple to open doors and start your car. However, there are many reasons why the key fob might stop functioning. This could be due to a dead coin battery or damaged receiver module, water damage issues, and interfering.

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Dead Coin Battery

A dead battery is the main cause of your 500 key fob that isn't working. Modern key fobs come with a limited operating range and should be within a few feet of the vehicle to function. If you're far away from your vehicle when you press the key fob button, the car won't 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 of a reliable brand, like Panasonic Duracell or Energizer. You can find them at the local hardware store or online.

After you've replaced the coin cell battery you can test it by standing close to your fiat panda key fob replacement 500 and pressing the buttons. The parking lights will flash and the key fob will operate the lock and unlock switch.

If your key fob isn't working even after replacing the battery, there could be water damage that hinders it from communicating with the module in your vehicle. Water damage can happen in many ways, such as simply splashing or submerging your key fob in saltwater at the beach. If you suspect that your fob was exposed to water, place it in a rice bag to draw out the moisture. If this doesn't work your fob may need to be reprogrammed by an experienced locksmith or dealer.

Water Damage

While the fob has some rubber seals to keep water from the chip's electronic circuit it, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater poses a particular risk to the fob's circuit board that can cause it to short out and eventually die. If you get the fob wet, it's not an option, but if you drop it in a cup of water or do not remember to take it out of your pocket before you run the washing machine, don't give up hope.

Remove the battery first. Clean the electronic chip with isopropyl alcohol or a similar product and dry it completely before replacing the battery. Then, test the fob to verify if it is working. If the fob doesn't work it could need to be reset. This is usually handled by an auto locksmith or dealer.

If the key is more recent and hasn't been programmed to your car It will most likely need to be replaced completely. A professional locksmith in the automotive industry will be able to complete this process. The locksmith will require the key to be cut to match your car's ignition. They'll also have to reprogram the fob to the car's system. This is a cheap and fast process that can be completed within the same day.

Receiver Module Issues

One of the most common reasons your 500 key fob may stop functioning is because it's out of range. The remote typically has 30 feet of range or less and if it's far from your car, it won't respond to your commands. It can be solved by moving it closer to your vehicle until it begins responding.

If you've replaced the battery on your coin (commonly known as a "button" or "watch") and your fob doesn't function It could be because of an internal circuit board problem. Reprogramming the fob usually resolves this issue. You can find instructions on how to do this for the majority of automobiles by searching YouTube or consulting the owner's manual.

You may have to replace the metal clips that hold the coin battery. If they lose tension it could prevent your coin battery from being properly seated, causing your remote to malfunction.

In rare instances, the fob may become desync'd with your vehicle due to software or hardware issues. It is possible to fix this issue by visiting your local auto-locksmith or dealer to reprogram your key fob. In some cases the software may need to be reinstalled in your body control modules.

Interference

Interference can also cause the key fob to not be able to receive or transmit signals. This can happen when the key fob is near a radio transmitter (cell phones and radar detectors) or another source of electromagnetic radiation. Other reasons the key fob might not function could be due to a weak connection to the buttons or the internal chip, or water damage.

If the key fob been unable to function for a while suddenly or after trying everything you can do at home to resolve it e.g. battery replacement, reprogramming and using the spare key fob, you may have a defective receiver module on your 500. The receiver module, located under the dashboard, receives radio frequency signals from your key fob. It converts the signals into electronic commands which are then translated by the vehicle.

There's a simple method to reset the 500's onboard system, including the keyfob. Disconnect the battery of 12 volts for about 15 minutes, by removing the negative cable first then the positive cable. Reconnect the battery. This will clear out any residual electricity and restart the car's computers, which can help you the key fob to function again. If the issue persists you should seek out an experienced technician. They'll be able to identify the root cause of your problem.