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Reasons Your Fiat 500 Key Fob Won't Work

A fiat punto key fob replacement 500 key fob makes it simple to open doors and start your car. There are many reasons why the fob may stop working. This could be due to a dead coin-battery water damage, problems with the receiver modules, and interference.

This listing is for an NEW replacement fiat punto key programming 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 comes with lock, unlock and trunk buttons.

Dead Coin Battery

The most frequent reason why your 500 key fob doesn't work is the battery is dead. Modern key fobs only have only a limited range of operation and must be within only a few inches from the vehicle to function. If you are far from your vehicle and press the key fob button the car will not respond, and will display the "Key Fob Not Detected" message in the instrument cluster.

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

After you've replaced the battery of your coin cell It is possible to test it by standing next to your fiat punto key replacement 500 and pressing the buttons. The car should blink its parking lights and the key fob should be able to operate the lock and unlock buttons.

If the fob's key doesn't function after replacing the battery, it may have water damage that stops it from communicating with the receiver module inside your vehicle. Water damage can occur in a variety of ways, ranging from small splashes to submerging the fob into salt water at the beach. If you think your fob was exposed to water, you can place it in a rice bag to draw out the moisture. If that doesn't work, the fob might require reprogramming by an experienced auto locksmith or the dealer.

Water Damage

Water damage can occur if you immerse the fob in the ocean or wash it in a washing machine. Saltwater poses a particular risk to the circuit board of the fob that can cause it to short out and eventually end up dying. Getting the fob wet is not a good idea, but if you drop it into a glass of water or fail to remove it from your pocket before you run the washer, don't give up hope.

Remove the battery first. Before replacing the battery clean the electronic chip with isopropyl or another similar product. Next, test the fob to verify if it is working. If the key does not function, it may need to be programmed again. This is usually done by a professional or dealer auto locksmith.

If the key is older and hasn't been programmed to your vehicle it is likely to need to be replaced completely. This is an easy process that can be handled by a professional automotive locksmith. The locksmith will require the key to be cut to match your car's ignition. The locksmith also needs to program your fob into the car's system. This is a cheap and quick procedure that can be completed in the same day.

Receiver Module Issues

One of the main reasons why your 500 key fob may stop functioning is that it's out of range. The remote typically has 30 feet of range or less and if it's far away from your car it won't respond to your commands. It's easy to fix this by moving the remote closer to your vehicle until it responds.

If you've replaced your coin battery (commonly called a "button" or "watch") and the fob won't work it could be due to an internal circuit board issue. In most cases, reprogramming the fob can resolve the problem. You can find directions on how to do this for all vehicles by searching YouTube or reading the owner's manual.

It is sometimes necessary to replace the metal clips that hold the coin batteries in place. If they loose tension, it can prevent your coin battery from being properly seated, causing your remote to malfunction.

In rare cases the fob can become out of sync with your vehicle because due to hardware or software issues. This can be a major problem, but you can frequently fix this issue by visiting an auto locksmith to reprogram your fob. In some cases the software may require reinstallation in your body control modules.

Interference

In addition to a dead coin battery the key fob could not be able to transmit or receive an signal due to interference. This could occur if the key fob is near the radio transmitter (cell phones and radar detectors) or another source of electromagnetic radiation. The key fob might not function because of a weak connection with the buttons or water damage, or damage to the internal chips.

If your key fob suddenly stopped working, or if you have tried everything at home to resolve it (e.g. battery replacement, reprogramming and using the spare key fiat 500 key fob, you may have a faulty receiver module on your 500. The receiver module, which is located under the dashboard, receives radio frequency signals from your key fob. It converts them into electronic commands that the vehicle interprets.

There is a simple way to reset the 500's internal system, including the keyfob. Disconnect the battery for 15 minutes, removing first the negative cable, then the positive cable. Reconnect the battery. This will clear any residual electricity, and allow you to restart the computer of your car. This can help you get your key fob to work again. If the issue continues, you should consult an expert certified technician. They will be able to determine the root of your issues.