Reasons Your Fiat 500 Key Fob Won't Work
A key fob from Fiat 500 is a great way to open the doors and begin the car. There are a myriad of reasons why the key fob might stop working. This could be due to a dead coin-battery or water damage, problems with the receiver modules, and interference.
This listing is for a NEW replacement Fiat Flip Key Remote that appears similar to the Ilco brand. It has to be professionally programmed (click here to find local locksmiths for your vehicle). It comes with lock, unlock and trunk buttons.
Dead Coin Battery
The most frequent reason why the 500 key fob won't work is a dead battery. Modern key fobs offer a limited range of operation and must be within a few inches of the vehicle to function. If you're far from your vehicle and you press the key fob button the car will not respond, and will display a "Key Fob Not Detected" message in the instrument cluster.
If this happens, simply replace the battery on your coin cell (Part number CR2032) with a new one from a trusted brand such as Panasonic, Duracell, or Energizer. You can find them in the local hardware store or online.
You can test the battery of your coin-cell by pressing the buttons while you are standing close to your Fiat 500. The car should flash its parking lights, and the key fob will operate the lock and unlock buttons.
If the fob's key doesn't work after replacing the battery, it may be damaged by water that blocks it from connecting to the receiver module in your car. Water damage can happen in many ways, such as a simple splash or submerging the key fob 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 out. If this does not work, you'll have to get your fob replaced by an auto locksmith or dealer.
Water Damage
While the fob has some rubber seals that keep water from the electronic chip inside it, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to short, and eventually die. Getting the fob wet is not an ideal idea however, if you drop it in a glass of water or fail to take it out of your pants pocket prior to running the washer do not give up hope.
First take the battery off the fob. Before replacing the battery clean the electronic chip using isopropyl or a similar product. Check the fob to determine if it's functioning. If the key does not function, it may have to be reprogrammed. This is usually handled by a dealer or professional auto locksmith.
If the key is more recent and has not been programmed to your car it is likely to need to be replaced completely. A professional locksmith for automotive will be able to complete this process. The locksmith must cut the key to match the ignition on your vehicle. They will also need to reprogram the fob for the car's system. This is a simple and cost-effective procedure that can be completed the next day.
Receiver Module Issues
Your 500 key fob may not work because it's out of range. The remote's range is of 30 feet, which means if you are too far from your vehicle it won't respond to your commands. It is possible to remedy this by moving your remote closer to your car until it responds.
If your fob won't work after replacing the battery in the coin, also called a "button", "watch" or "button" It could be due to an issue with the internal circuit board. Reprogramming your fob can resolve the issue. There are instructions on how to do this on the majority of vehicles by searching YouTube or reading the owner's manual.
It is possible to replace the metal clips that hold the coin batteries in place. If they loose tension, it could hinder the coin battery from being seated properly and can cause your remote to malfunction.
In G28 Car Keys might be out of the vehicle's sync because of software or hardware problems. You can fix this issue by visiting your local auto-locksmith or dealer to reprogram your key fob. In some cases, the software may also require reinstallation to your body control modules.
Interference
In addition to a dead coin battery The key fob might not be receiving or transmitting signals due to interference. This can happen when the key fob is close to radio transmitters (cell phones or radar detectors) or another source of electromagnetic radiation. Other reasons why the key fob may not function may be a lack of connection to the buttons or damage to the internal chip, or water damage.
If the key fob has stopped working one day out of the blue and you've tried everything you can do at home to fix it e.g. replacing the battery, reprogramming it and using the spare key fob, it could have a malfunctioning receiver module on your 500. The receiver module is located under the dash and receives the radio frequency signals from the key fob. It converts them to electronic commands that the vehicle interprets.
Fortunately, there's an easy method of resetting all of the on-board systems in your 500, including the key fob. Disconnect the battery 12 volt for about 15 minutes by removing the negative cable first then the positive cable. Then reconnect the battery. This will eliminate any remaining electrical charge, and then restart the computer of your car. This can help get your key fob working again. If the problem persists you should speak with an expert certified technician. They can diagnose the exact cause of your problem.