Reasons Your Fiat 500 Key Fob Won't Work
A key fob from Fiat 500 is a convenient method to unlock the doors and get started the car. However, there are numerous reasons the fob could stop working. It could be due to a dead battery or water damage, receiver module problems, and interference.
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Dead Coin Battery
The most frequent reason why the 500 key fob won't function is due to an inactive battery. Modern key fobs have an operating range that is limited and must be within just a few inches of the vehicle to function. If you're far from your vehicle and you press the keyfob button, it won't respond and display the message "Key Fob Not Detected".
If this happens then replace the battery for your coin-cell (Part Number CR2032) by a fresh one of a reputable brand such as Panasonic Duracell or Energizer. You can find them in the local hardware store or online.
After you've changed the battery on the coin cell, you can test it by standing in front of your Fiat 500 and pressing the buttons. The car should blink its parking lights, and the key fob should work the lock and unlock switches.
If the fob's remote doesn't function after replacing the battery, it could have water damage that stops it from connecting to the receiver module in your vehicle. Water damage can occur in a variety of ways, from an accidental splash to submerging the fob into salt water at the beach. If you suspect that your fob has been exposed to water, place it in a bag of rice to draw out the moisture. If that doesn't work, your fob is likely to need to be reprogrammed by a professional auto locksmith or by the dealer.
Water Damage
Water damage can happen if you submerge the fob in the ocean, or wash it in a washer. Saltwater can cause the circuit board to short and then end up dying. It's not good to submerge the fob in water however, but don't give it up even if you accidentally drop the fob in water, or fail to take it out of your pocket.
First take the battery off the fob. Before replacing the battery clean the electronic chip with isopropyl or another similar product. Then check the fob to test if it works. If the key does not function, it may need to be reprogrammed. This is usually handled by an auto locksmith or dealer.
If the key is newer and has not been programmed to your vehicle it is likely to need to be replaced completely. A professional locksmith for cars can do this job. The locksmith must cut the key to match the ignition in your vehicle. They will also need to reprogram the fob in the car's system. It's a simple and cost-effective process that can be completed the same day.
Receiver Module Issues
Your 500 key fob may stop working because it is out of range. The remote has a maximum range of 30 feet. So if you are too far from your car it won't be able to 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 on your coin (commonly called"button" or "button" or "watch") and the fob won't work, it could have an internal circuit board issue. Reprogramming your fob can resolve this issue. There are instructions on how to do this for the majority of automobiles by searching YouTube or checking out the owner's manual.
It is possible to replace the metal retaining clips that keep the coin battery. If they lose tension, it may prevent your battery from being properly seated and cause your remote to malfunction.
In rare cases the fob can become out of sync with your vehicle because due to hardware or software issues. This can be a major trouble, but you could frequently fix this issue by visiting a local dealer or auto locksmith to reprogram your fob for you. In certain instances the software may need to be reinstalled in your body control modules.
Interference
Interference can also cause the key fob to not receive or transmit signals. fiat 500 spare key could happen if the key fob is near radio transmitters (cell phones or radar detectors) or any other source of electromagnetic radiation. The key fob might not work 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 resolve it (e.g. You could have a malfunctioning 500 receiver module If you've tried replacing it with a battery, reprogramming, or using an alternative key fob. The receiver module, located beneath the dashboard, receives radio frequency signals from your key fob. It converts them to electronic commands that the vehicle interprets.
Luckily, there is an easy method to reset all of the onboard systems in your 500 device, including the key fob. Disconnect the 12 volt battery for approximately 15 minutes by disconnecting the negative cable first then the positive cable. Reconnect the battery. This will eliminate any remaining electricity, and restart the computer in your car. This can help you get your key fob to function again. If the issue continues it is recommended that you consult an experienced technician. They will be able diagnose the exact cause of problems.