Reasons Your Fiat 500 Key Fob Won't Work A Fiat 500 key fob allows you to easily open doors and start your vehicle There are many reasons the fob may stop working It could be due to a dead battery or damage to the receiver module, water issues, or interference This listing is for an NEW replacement Fiat Flip Key Remote - similar to the Ilco brand that must be programmed professionally by a local locksmith click here for Locksmith Search This remote includes lock, unlock and trunk buttons Dead Coin Battery The most frequent reason that your 500 key fob will not function is an inactive battery Modern key fobs operate with a limited range of operation, and must be within a few feet of the car to operate If you're far from your vehicle and you push the keyfob button it will not respond, and display the message "Key Fob Not Detected" If this happens, replace the battery in the coin cell Part number CR2032 with a new one from a trusted brand like Panasonic, Duracell, or Energizer You can usually find them at your local hardware store or on the internet After you've changed the battery on the coin cell It is possible to test it by standing next to your Fiat 500 and pressing the buttons The parking lights should blink and the key fob will operate the lock and unlock switch If the fob's remote doesn't function after replacing the battery, it might have water damage that stops it from connecting to the receiver module inside your vehicle Water damage can happen in a variety of ways, such as an easy splash or submerging your key fob in saltwater at the beach If you suspect your fob was exposed to water, try putting it in a dry rice bag to draw the moisture back out If that doesn't work, the fob might need to be reset by a professional auto locksmith or the dealer Water Damage Water damage can occur when you immerse the fob in the ocean or wash it in a washing machine Saltwater is especially dangerous to the circuit board of the fob, causing it to short out and eventually end up dying It's not good to let the fob get wet however, don't give it up when you accidentally drop it in water or forget to take it out of your pocket Take https//wwwg28carkeyscouk/fiat-car-key-replacements-near-me/ off first Before replacing the battery clean the electronic chip using isopropyl or another similar product Test the fob next to determine if it's functioning If the key doesn't function, it may need to be programmed again This is typically handled by a dealer or professional auto locksmith If your key is old and is not programmed for your car You will need to replace it completely This is a simple procedure that can be handled by a professional locksmith for automotive use The locksmith will require the key cut to match your car's ignition The locksmith also needs to reprogram your fob into the vehicle's system It's a simple and inexpensive process that is usually completed in the next day Receiver Module Issues The 500 key fob could stop working because it is out of range The remote usually has an operating range of 30 feet or less, and if it's too far from your car, it will not respond to your commands It can be solved by moving it closer to your vehicle until it starts 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 due to an internal circuit board issue In the majority of cases, reprogramming your fob will resolve this issue You can find instructions on how to do this for most automobiles by searching YouTube or checking out the owner's manual It is possible to replace the metal clips that hold the battery of your coin in place If they lose tension, it may prevent your battery from sitting properly, causing your remote to malfunction In rare cases the fob could be disconnected from your vehicle due to software or hardware issues You can fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob In some instances it is possible that the software will require reinstallation into your body control modules Interference Interference can also cause the key fob to be unable to receive or transmit a signal This is possible when the key fob is near radio transmitters cell phones, radar detectors or any other source of electromagnetic radiation The key fob could not work due to a poor connection to the buttons water damage or damage to the internal chips If the key fob stopped working one day without notice or after trying everything you can do at home to solve it eg replacing batteries, reprogramming or using the spare key fob, you could have a damaged receiver module on your 500 The receiver module, which is located beneath the dashboard, is able to pick up radio frequency signals from your key fob It then converts them into electronic commands that the vehicle interprets Fortunately, there's an easy way to reset every single system on board in your 500 and include the key fob Disconnect the battery for 15 minutes by removing first the negative cable, then the positive cable Then, reconnect the battery This will clear out any remaining electricity and restart the car's computers, which could allow you to get your key fob working again If the issue continues, you should consult an experienced technician They can identify the root cause of your issue