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Reasons Your Fiat 500 Key Fob Won't Work

A Fiat 500 key fob allows you to easily open doors and start your vehicle. However, there are many reasons why the fob may stop working. This could be due to a dead coin battery or damaged receiver module, water damage issues, and Replacement Fiat Key Fob interfering.

This listing is for an NEW replacement Fiat Key fob Fiat Flip Key Remote that appears similar to the Ilco brand. It must be professionally programmed (click here to search for local locksmiths for automotive locksmiths). Includes lock, unlock, and trunk buttons.

Dead Coin Battery

A dead battery is probably the most common cause of your 500 key fob being inoperative. Modern key fobs only have an operating range that is limited and must be within a few inches of your vehicle to function. If you are not within your vehicle, and you hit the keyfob, it will not respond and display the message "Key Fob Not Detected".

If this happens, replace the coin-cell battery (Part Number CR2032) with a new battery from a reputable brand such as Panasonic Duracell or Energizer. They can be found in your local hardware store or online.

You can test the battery of your coin-cell by pressing the buttons while standing near your fiat 500 locked keys in car 500. The car will blink its parking lights and the key fob should operate the lock and unlock switches.

If the fob's key 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 occur in a variety of ways, ranging from the slightest splash to submerging the fob into salt water at the beach. If you believe your fob was exposed to water, place it in a rice bag to draw out the moisture. If this does not work, you'll need to have the fob replaced by an auto locksmith or dealer.

Water Damage

Water damage can occur when you immerse the fob into the ocean, or wash it in a machine. Saltwater can cause the circuit board to become shorted and eventually end up dying. It's not a good thing to soak 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. Clean the electronic chip with isopropyl ethanol or a similar product and then dry it completely before replacing the battery. Test the fob afterward to see if it is functioning. If the key does not function, it may need to be programmed again. This is usually done by a professional or dealer auto locksmith.

If the key is newer and hasn't been programmed to your vehicle it is likely to need to be replaced completely. This is an easy process that can be completed by a professional locksmith for automotive use. The locksmith will require the key to be cut to match the car's ignition. The locksmith will also need to reprogram your fob in the vehicle's system. This is a low-cost and quick process that can be completed in the same day.

Receiver Module Issues

One of the most common reasons your 500 key fob might stop functioning is that it's out of range. The remote's range is of 30 feet. So if you are too far from your car it won't respond to your commands. It's easy to solve this problem by moving the remote closer to your vehicle until it responds.

If your fob won't work after you replace the battery inside the coin, which is also called a "button", "watch" or "button" It could be due to an issue with the internal circuit board. In most cases, reprogramming the fob can resolve the issue. You can find the procedure for the majority of vehicles on YouTube or in the owner's guide.

You may need to replace the metal retaining clips that hold the coin battery. If they loose tension, it can prevent your coin battery from being properly seated, causing your remote to malfunction.

In rare cases the fob can become out of alignment with your vehicle because of software or hardware problems. It is possible to fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In some instances the software might require reinstallation into your body control modules.

Interference

Interference can also cause the key fob to not receive or transmit signals. This could occur if the keyfob is located in close proximity to a radio transmitter, like a cell phone or radar detector. The key fob may not function because of a weak connection with the buttons or water damage, or damage to the internal chips.

If the key fob failed to work one day without notice and you've tried everything you can at home to fix it e.g. You might have a damaged 500 receiver module If you've tried replacing it with a battery, reprogramming, and using a spare key fob. The receiver module is located under the dash and picks up the radio frequency signals from the key fob. It converts the signals into electronic commands, which are then read by the vehicle.

There is a straightforward method to reset the 500's onboard system, including the keyfob. Disconnect the battery for 15 minutes by removing first the negative cable and then the positive cable. Reconnect the battery. This will clear out any remaining 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 expert technician. They'll be able determine the root of your issues.