Reasons Your Fiat 500 Key Fob Won't Work

A key fob from Fiat 500 is a great way to unlock the doors and get started the car. There are many reasons the key fob might stop working. This includes a dead battery, water damage, problems with receiver modules, as well as interference.

This listing is for a NEW replacement fiat 500 key replacement cost [this] Flip Key Remote - similar to the Ilco brand that needs to be programmed professionally by a local automotive locksmith (click here for Locksmith Search). It includes lock, unlock and trunk buttons.

Dead Coin Battery

A dead battery is the most frequent reason for your 500 key fob being inoperative. Modern key fobs have an operating range that is limited and must be within a few inches of the vehicle to work. If you are not within your vehicle, and you push the keyfob button it will not respond, and display the message "Key Fob Not Detected".

If this happens, replace the battery on your coin cell (Part number CR2032) with a brand new one from a reliable brand such as Panasonic, Duracell, or Energizer. You can find them in the local hardware store or online.

After you've replaced the battery of your coin cell, you can 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 should operate the lock and unlock buttons.

If the fob's remote doesn't work after replacing the battery, it may have water damage that stops it from communicating with the receiver module in your vehicle. Water damage can occur in a variety of ways, ranging from an accidental splash to submerging the fob salt water at the beach. If you suspect that your fob has been exposed to water, try putting it in a dry rice bag to draw the moisture back out. If this doesn't work your fob is likely to need to be reset by an experienced auto locksmith or dealer.

Water Damage

While the fob comes with rubber seals that keep water out of the chip's electronic circuit it, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater can cause the circuit board to short and then die. It's not good to let the fob get wet however, but don't give it up when you accidentally drop it in the water or don't remove it from your pants pocket.

First take the battery off the fob. Clean the electronic chip with isopropyl alcohol or a similar product and then dry it thoroughly before replacing the battery. Then check the fob to verify if it is working. If the key isn't working, it may need to be reprogrammed. This is usually handled by an auto locksmith or dealer.

If the key is more recent and has not been programmed to your vehicle It will most likely need to be replaced completely. This is a straightforward process that can be completed by a professional automotive locksmith. The locksmith will have to cut the key to match the ignition of your vehicle. The locksmith also needs to reprogram your fob into the car's system. It's a simple and cost-effective process which can be completed within the same day.

Receiver Module Issues

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

If you've replaced your coin battery (commonly known as a "button" or "watch") and your fob still won't work, it could have an internal circuit board problem. Reprogramming the fob is usually the solution to this issue. You can find the steps for most vehicles on YouTube or in the owner's manual.

It's possible that you need to replace the metal retaining clips that keep the battery of your coin in place. If they lose tension, it could prevent the coin battery from being properly seated and can cause the remote to malfunction.

In rare instances, the fob may be out of alignment with your vehicle because of software or hardware problems. This could cause a significant trouble, but you could usually fix it by visiting a local dealer or auto locksmith to have them reprogram your fob. In certain situations they may have to reinstall the software on your body control module, too.

Interference

Interference can also cause the key fob to not be able to receive or transmit an signal. This can happen when the key fob is close to the radio transmitter (cell phones or radar detectors) or another source of electromagnetic radiation. Other reasons why the key fob may not function include a weak connection to the buttons and internal chip, or water damage.

If the key fob has failed to work one day out of the blue, or after trying every option at home to resolve it e.g. replacing batteries, reprogramming or using the spare key fob, you might have a faulty receiver module on your 500. The receiver module, located under the dashboard, picks up radio frequency signals from your key fob. It converts them into electronic commands that the vehicle interprets.

Luckily, there is an easy way to reset every single system on board in your 500 device, including the key fob. Disconnect the battery for 15 minutes by taking off first the negative cable, then the positive cable. Then reconnect the battery. This will clear out any remaining electricity and then restart the car's computer system, which could help get your key fob working again. If the issue persists you should speak with a certified technician. They can identify the root cause of any problems.