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Reasons Your fiat 500 key button replacement 500 Key Fob Won't Work

A fiat 500 key fob is a great way to open the doors and begin the car. There are a myriad of reasons why the fob may stop functioning. This includes a dead battery and water damage, as well as problems with the receiver modules, and interference.

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

Dead Coin Battery

The most common reason your 500 key fob won't function is due to the battery is dead. Modern key fobs have a very limited operating range, and must be within a few feet of the vehicle to function. If you are further away from your vehicle and press the keyfob button, it will not 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 brand new one of a reputable brand like Panasonic Duracell or Energizer. You can find them at the local hardware store or online.

After you've changed the battery on the coin cell, you can test it by standing close to your fiat key fob not working 500 and pressing the buttons. The car will blink its parking lights, and the key fob should operate the lock and unlock switches.

If your fob's key doesn't work even after replacing the battery, it may be water damage which hinders it from connecting to the module inside your vehicle. Water damage can happen in many ways, including the simple splash or submerging the key fob into 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 fails, you'll need to have your fob reprogrammed either by an auto locksmith or dealer.

Water Damage

While the fob has some rubber seals that keep water out of the electronic chip inside the device, submerging it into the ocean or washing it in a machine could cause water damage. Saltwater poses a particular risk to the circuit board of the fob that can cause it to short out and eventually die. It's not a good idea to submerge the fob in water however, but don't give it up in the event that you accidentally drop it in water or forget to remove it from your pocket.

First, remove the battery from the fob. Clean the electronic chip with isopropyl ethanol or a similar product and then dry it thoroughly before replacing the battery. Next check the fob to test if it works. If the key still doesn't work, it may need to be reset. This is usually handled by a professional or dealer auto locksmith.

If the key is newer and has not been programmed to your car it is likely to need to be replaced completely. A professional locksmith for automotive can do this job. The locksmith will require the key cut to match the car's ignition. They'll also need to reprogram the fob in the system of your car. It's a simple and inexpensive process which can be completed on the same day.

Receiver Module Issues

One of the main reasons why your 500 key fob may stop working is because it's out of range. The remote has a maximum range of 30 feet, which means when you're too far away from your vehicle it won't be able to respond to your commands. This can easily be resolved by moving it closer to your vehicle until it starts responding.

If your fob doesn't work after you replace the coin battery, also known as a "button", "watch" or "button", it could be a problem with the internal circuit board. In the majority of cases, reprogramming your fob can resolve the issue. The instructions are available for the majority of vehicles on YouTube or in the owner's guide.

It may be necessary to replace the metal clips that hold the coin batteries in place. If they lose tension, it may prevent your battery from being properly seated and cause your remote to malfunction.

In rare cases, the fob may become desync'd with your vehicle due to software issues or hardware issues. This could be a huge headache, but you can usually resolve this issue by visiting an auto locksmith to have them reprogram your fob. In some instances it may be necessary to reinstall the software in your body control module as well.

Interference

Interference can also cause the key fob to not be able to receive or transmit an signal. This could occur if the keyfob is in close proximity to a radio transmitter, such as a cell phone or radar detector. Other reasons why the key fob might not function may be a lack of connection to the buttons or damage to the internal chip, or water damage.

If the key fob failed to work one day without notice, or after trying everything you can do at home to resolve it e.g. It could be a defective 500 receiver module If you've tried replacing it with a battery, reprogramming or using a spare key fob. The receiver module, located under the dashboard, receives radio frequency signals from your key fob. It converts them to electronic commands that the vehicle interprets.

Fortunately, there's an easy method to reset all of the onboard systems in your 500 and include the key fob. Disconnect the battery for 15 minutes by removing first the negative cable and then the positive cable. Then, reconnect the battery. This will remove any residual electricity and restart the car's computer system, which could help the key fob to function again. If the issue persists, you should seek out an expert technician. They'll be able determine the exact cause of your issues.