Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 makes it easy to open doors and start your vehicle. There are a myriad of reasons why the key fob might stop functioning. This could be due to a dead coin battery, damaged receiver module, water damage issues, and interfering.

This listing is for an NEW replacement Fiat Flip Key Remote that looks like the Ilco brand. It needs to be professionally programmed (click here to search for local locksmiths for automotive locksmiths). This remote includes lock, unlock and trunk buttons.

Dead Coin Battery

The most frequent reason that your 500 key fob won't function is an inactive battery. Modern key fobs have a limited operating range, and should be within some feet of the car to operate. If you're not close to your vehicle and press the key fob button the car won't respond and will display an "Key Fob Not Detected" message in the instrument cluster.

If this happens, simply replace the battery of your coin cell (Part number CR2032) with a fresh one from a reputable manufacturer like Panasonic, Duracell, or Energizer. You can usually find them in your local hardware store or on the internet.

After you've replaced the coin cell battery, you can test it by standing next to your Fiat 500 and pressing the buttons. The car should flash its parking lights, and the key fob should be able to operate the lock and unlock buttons.

If your key fob isn't working even after replacing the battery, there may be water damage which hinders it from communicating with the module inside your vehicle. Water damage can occur in a variety of ways, from an accidental splash to submerging the fob in salt water at the beach. If you suspect your fob was exposed to water, try placing it in a dry rice bag to draw the moisture out. If this doesn't work your fob will probably need to be reset by an experienced locksmith or dealer.

Water Damage

Although the fob is equipped with rubber seals to keep water out of the chip's electronic circuit, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater is especially dangerous to the fob's circuit board which causes it to short out and eventually die. It's not the best idea to soak the fob in water however, but don't give it up even if you accidentally drop the fob in water or forget to take it out of your pocket.

Remove the battery first. Before replacing the battery clean the electronic chip with isopropyl, or a similar product. Then check the fob to verify if it is working. If the key isn't working it could need to be reset. 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 in the automotive industry will be able to complete this process. The locksmith will need the key cut to match the car's ignition. They'll also need to reprogram the fob in your vehicle's system. This is a fast and affordable process that can be completed in the next day.

Receiver Module Issues

The 500 key fob could be inoperable because it's out of range. The remote usually has 30 feet of range or less, and if it's too far from your vehicle, it will not respond to your commands. You can easily solve this problem by moving the remote closer to your car until it responds.

If you've replaced the coin battery (commonly known as a "button" or "watch") and the fob won't work It could be because of an internal circuit board problem. In most cases, reprogramming the fob will solve the issue. You can find the steps for the majority of vehicles on YouTube or in the owner's manual.

It is possible 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 instances, the fob may become disconnected from your vehicle because of software or hardware issues. This could cause a significant headache, but you can often fix this by visiting a local dealer or auto locksmith to reprogram your fob. In some cases, the software may also require reinstallation in your body control modules.

Interference

In addition to a dead battery on a coin The key fob might not be able to receive or transmit a signal due to interference. This can happen when the key fob is near an electronic radio transmitter (cell phones and radar detectors) or any other source of electromagnetic radiation. Other reasons why the key fob might not function may be a lack of connection to the buttons, damage how to start a fiat 500x with key to program fiat 500 key fob (web) the internal chip, or water damage.

If your key fob suddenly stopped working, or you've tried everything at home to resolve it (e.g. You might have a damaged 500 receiver module in the event that you've tried replacing the battery, reprogramming or using an alternative key fob. The receiver module, located beneath the dashboard, receives radio frequency signals from your key fob. It transforms the signals into electronic commands that are then processed by the vehicle.

There is a simple way to reset the 500's in-board system, including the keyfob. Disconnect the 12 volt battery for approximately 15 minutes by removing the negative cable and then the positive cable. Then reconnect the battery. This will get rid of any residual electricity and restart the car's computers. This could help get your key fob working again. If the problem persists, you should consult an expert certified technician. They will be able to determine the exact cause of any issues.