Reasons Your fiat 500 keys 500 Key Fob Won't Work

A key fob with the fiat 500 number is a convenient method to unlock the doors and get started the car. There are a myriad of reasons the key fob might stop working. These include a dead coin battery, damage to the receiver module, issues, and interfering.

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 search for local locksmiths in the automotive industry). It includes trunk, lock and unlock buttons.

Dead Coin Battery

A dead battery is probably the most common reason for your 500 key fob being inoperative. Modern key fobs have a very limited range of operation, and must be within only a few feet from the vehicle to operate. If you are far from your vehicle, and you press the keyfob button, it won't respond and display the message "Key Fob Not Detected".

If this happens you need to replace the battery of your coin-cell (Part Number CR2032) with a new battery of a reliable brand, like Panasonic Duracell or Energizer. You can find them at the local hardware store or on the internet.

After you've replaced the battery in the coin cell It is possible to test it by standing in front of your Fiat 500 and pressing the buttons. The car will flash its parking lights and the key fob will operate the lock and unlock buttons.

If your key fob still isn't working after replacing the battery, there may be water damage which has prevented it from communicating with the module in your vehicle. Water damage can occur in a variety of ways, such as an easy splash or submerging the key fob saltwater at the beach. If you think your fob was exposed to water, place it in a bag of rice to draw out the moisture. If this fails, you'll need to have your fob changed by an auto locksmith or dealer.

Water Damage

The fob does have rubber seals to keep water from the chip's electronic circuit it, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater can be particularly harmful to the fob's circuit board which causes it to short out and eventually die. In the event that you let your fob get wet, it's not an ideal idea however, if you drop it into a glass of water or forget to take it out of your pocket before you run the washer and you don't have a chance, don't give in.

First take the battery off the fob. Before replacing the battery clean the electronic chip with isopropyl or similar products. Test the fob afterward to check if it's working. If the fob doesn't work, it might need to be programmed again. This is usually done by an auto locksmith or dealer.

If the key is newer and has not been programmed to your vehicle, it will likely need to be replaced completely. A professional locksmith for cars will be able to complete this process. The locksmith will need to cut the key to match the ignition of your car. The locksmith will also have to reprogram the fob into the car's system. This is a simple and cost-effective process that can usually be completed on the same day.

Receiver Module Issues

The 500 key fob could not work because it's out of range. The remote typically has 30 feet of range or less, and if it's too far from your vehicle, it won't respond to your commands. This can easily be resolved by moving it closer to your vehicle until it begins responding.

If you've replaced the battery in your coin (commonly called a "button" or "watch") and your fob still won't work, it could have an internal circuit board issue. In most cases, reprogramming the 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 the correct position. If they loose tension, it could prevent your coin battery from sitting properly, causing your remote to malfunction.

In rare instances the fob might become desync'd with your vehicle due to software or hardware issues. You can fix this problem by visiting your local auto-locksmith or dealer to reprogram your key fob. In certain instances it is possible that the software will require reinstallation in your body control modules.

Interference

Interference can also cause the key fob to be unable to receive or transmit an signal. This could occur if the keyfob is located in close proximity to a radio transmitter like a cellphone or radar detector. The key fob might not work because of a weak connection with the buttons, water damage or damage to the internal chips.

If your key fob suddenly stopped working, or if you've tried everything at home to solve the issue (e.g. It could be a defective 500 receiver module if you've tried replacing the battery, reprogramming or using a spare key fob. The receiver module, located beneath the dashboard, is able to pick up radio frequency signals from your key fob. It converts the signals into electronic commands which are then translated by the vehicle.

Fortunately, there's an easy method to reset all on-board systems in your 500 keys, including the key fob. Disconnect the 12 volt battery for about 15 minutes, by disconnecting the negative cable first then the positive cable. Then reconnect the battery. This will clear out any remaining electrical charge and restart the car's computers. This can help the key fob to function again. If the issue continues, you should consult an expert technician. They'll be able diagnose the exact cause of your problem.