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Reasons Your fiat 500 spare key cut 500 Key Fob Won't Work

A fiat key case replacement 500 key fob is a handy way to unlock the doors and get started the car. However, there are a variety of reasons why the key fob might stop functioning. These include a dead battery, water damage, receiver module issues, and interfering.

This listing is for an NEW replacement fiat 500 keys Flip Key Remote that looks like the Ilco brand. It must be professionally programmed (click here to search for local locksmiths in the automotive industry). This remote includes lock, unlock and trunk buttons.

Dead Coin Battery

A dead battery is the most frequent cause of your 500 key fob not functioning. Modern key fobs come with a limited operating range, and should be within only a few feet from the car to operate. If you're far away from your vehicle, and you press the fiat van key replacement fob button, the Lost Car Key Fiat will not respond, and will display an "Key Fob Not Detected" message in the instrument cluster.

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 typically find them at your local hardware store, or online.

You can test the battery on your coin-cell by pressing the buttons while you are standing close to your fiat panda key 500. The car should flash its parking lights and the key fob will operate the lock and unlock switches.

If your key fob still doesn't work even after replacing the battery, there may be water damage which is preventing it from connecting to the module in 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 that your fob has been exposed to water, try putting it in a dry rice bag to pull the moisture back out. If this doesn't work, your fob may require reprogramming by an experienced auto locksmith or the dealer.

Water Damage

While the fob comes with rubber seals that keep water from the chip's electronic circuit, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater poses a particular risk to the circuit board of the fob, causing it to short out and eventually end up dying. It's not a good idea to submerge the fob in water however, but don't give it up when you accidentally drop it in the water or don't take it out of your pocket.

First remove the battery from the fob. Clean the electronic chip with isopropyl alcohol or another similar product and then dry it thoroughly before replacing the battery. Next, test the fob to see if it works. If the key does not function it could need to be programmed again. This is usually handled by an auto locksmith or dealer.

If your key is older and is not programmed to work with your vehicle then you'll need to replace it completely. A professional automotive locksmith can do this job. The locksmith will require the key to be cut to match your car's ignition. The locksmith also needs to reprogram the fob into the car's system. This is a simple and cost-effective procedure that is usually completed within the same day.

Receiver Module Issues

One of the most common reasons why your 500 key fob might stop functioning is that it's out of range. The remote usually has a range of 30 feet or less, and if it's too far from your car, it will not respond to your commands. You can remedy this by moving your remote closer to your vehicle until it responds.

If you've replaced the battery in your coin (commonly called a "button" or "watch") and your fob doesn't function, it could have an internal circuit board issue. In the majority of cases, reprogramming your fob will resolve this problem. There are instructions on how to do this on the majority of vehicles by searching YouTube or consulting the owner's manual.

It is possible to replace the metal clips that hold the battery of your coin in place. If they lose tension, it can prevent the coin battery from being properly seated and cause your remote to malfunction.

In rare cases the fob might be out of the vehicle's sync because of hardware or software problems. This can cause a major headache, but you can often fix this by visiting an auto locksmith to have them reprogram your fob. In certain instances the software may require reinstallation in your body control modules.

Interference

Interference can also cause the key fob to be unable to receive or transmit a signal. This can occur when the key fob is in close proximity to a radio transmitter, like a cellphone or radar detector. Other reasons why the key fob could 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 without notice or after trying everything you can do at home to solve it e.g. replacing batteries, reprogramming or using the spare key fob, you could have a faulty receiver module on your 500. The receiver module is situated under the dash, and it picks up the radio frequency signals from the key fob. It converts them into electronic commands that the vehicle interprets.

Fortunately, there's an easy method to reset all on-board systems in your 500 keys, including the key fob. Disconnect the battery for 15 minutes, removing first the negative cable and then the positive cable. Then, reconnect the battery. This will get rid of any remaining electricity and then restart the car's computer system, which could allow you to the key fob to function again. If the issue continues you should speak with an expert certified technician. They'll be able diagnose the exact cause of your issues.