Reasons Your Fiat 500 Key Fob Won't Work
A key fob for Fiat 500 makes it easy to open doors and start your vehicle. However, there are many reasons why the fob may stop functioning. This could be due to a dead battery or water damage, problems with receiver modules, as well as interference.
This listing is for an NEW replacement Fiat Flip Key Remote that is similar to the Ilco brand. It has to be professionally programmed (click here to find local automotive locksmiths). This remote includes lock, unlock and trunk buttons.
Dead Coin Battery
A dead battery is the main cause of your 500 key fob not working. Modern key fobs only have limited operating range and must be within just a few inches of the vehicle in order to work. If you are far from your vehicle and you press the key fob button the car will not respond, and will display the "Key Fob Not Detected" message in the instrument cluster.
If this happens, simply replace the coin cell battery (Part number CR2032) with a fresh one from a reliable brand like Panasonic, Duracell, or Energizer. You can typically find them in your local hardware store, or online.
You can test the battery in the coin-cell by pressing the buttons while you're standing close to your Fiat 500. The car should flash its parking lights and the key fob should operate 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 communicating with the receiver module inside your car. Water damage can occur through a variety of methods, including simply splashing or submerging your key fob in saltwater at the beach. If you believe your fob was exposed to water, you can place it in a rice bag to draw out the moisture. If this does not work, you'll have to get your fob reprogrammed either by an auto locksmith or dealer.
Water Damage
While the fob comes with rubber seals that keep water out of the chip's electronic circuit the device, submerging it into the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to short and eventually cease to function. It's not a good idea to soak the fob in water however, but don't give it up if you accidentally drop it in water or fail to remove it from your pocket.
First, remove the battery from the fob. Clean the electronic chip with isopropyl alcohol or a similar product and then dry it completely before replacing the battery. Test the fob afterward to verify if it's working. If the fob doesn't work, it may need to be changed. This is usually done by an auto locksmith or dealer.
If the key is older and has not been programmed to your car, it will likely need to be replaced completely. A professional locksmith for cars can complete this simple process. The locksmith will have to cut the key to match the ignition in your vehicle. They'll also have to program the fob into the car's system. This is a low-cost and quick process that could be completed on the same day.
Receiver Module Issues
Your 500 key fob might not function because it's out of range. The remote typically has an area of 30 feet or less, and if it's too far from your vehicle, it will not respond to your commands. You can easily remedy this by moving your remote closer to your vehicle until it responds.
If your fob doesn't work after you replace the battery for the coin, also called a "button", "watch" or "button", it could be a problem with the circuit board inside. Reprogramming your fob can resolve this issue. You can find the instructions for the majority of vehicles on YouTube or in the owner's guide.
You may have to replace the metal retaining clips that keep the coin battery. If they lose tension it could prevent the coin battery from being properly seated and could cause your remote to malfunction.
In rare cases the fob might become desync'd with your vehicle due to software issues or hardware issues. It is possible to fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In certain instances the software might 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 an signal. thekeylab could occur if the key fob is close to an electronic radio transmitter (cell phones, radar detectors) or any other source of electromagnetic radiation. The key fob may not function due to a bad connection with the buttons water damage or damage to the internal chips.
If the key fob failed to work one day suddenly and you've tried every option at home to resolve it e.g. You may have a faulty 500 receiver module If you've tried replacing it with a battery, reprogramming, or using a spare key fob. The receiver module is located under the dash and receives the radio frequency signals from the key fob. It transforms the signals into electronic commands which are then read by the vehicle.
Luckily, there is an easy way to reset every single system on board in your 500 keys, including the key fob. Disconnect the battery for 15 minutes, removing first the negative cable, then the positive cable. Then, reconnect the battery. This will get rid of any remaining electricity and restart the car's computer system, which could help get your key fob working again. If the issue continues, you should speak with an expert technician. They'll be able to diagnose the exact cause of your issue.