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 a myriad of reasons the fob could stop functioning. This includes a dead coin-battery, water damage, receiver modules issues, and interference.

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Dead Coin Battery

A dead battery is the most common cause of your 500 key fob being inoperative. Modern key fobs have a limited range of operation, and should be within only a few feet from the vehicle to operate. If you're 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 then replace the battery for your coin-cell (Part Number CR2032) with a new battery from a reputable brand such as Panasonic Duracell or Energizer. They are available at the local hardware store or online.

You can test the battery in the coin-cell by pressing the buttons while you're standing close to your Fiat 500. The car will blink its parking lights and the key fob will operate the lock and unlock buttons.

If the fob's remote doesn't work after replacing the battery, it could be damaged by water, which prevents it from connecting to the receiver module in your car. Water damage can happen in a variety of ways, such as simply splashing or submerging the key fob saltwater at the beach. If you suspect that your fob was exposed to water, place it in a bag of rice to draw out the moisture. If this doesn't work your fob is likely to need to be reset by a professional auto locksmith or by the dealer.

Water Damage

The fob does have rubber seals that keep water out of the electronic chip inside, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to short, and eventually cease to function. In the event that you let your fob get wet, it's not an ideal choice but if you accidentally drop it into the water in a cup or fail to remove it from your pants pocket before running the washer, don't give up hope.

First remove the battery from the fob. Clean the electronic chip using isopropyl or a similar product and dry it completely before replacing the battery. Next check the fob to see if it works. If the key does not function, it may need to be programmed again. This is usually handled by an auto locksmith or dealer.

If the key is more recent and hasn't been programmed to your car It is likely that it needs to be replaced completely. A professional locksmith in the automotive industry can complete this simple process. The locksmith will need to cut the key to match the ignition of your vehicle. The locksmith will also have to reprogram your fob into the vehicle's system. It's a simple and cost-effective process that can be completed on the same day.

Receiver Module Issues

One of the most common reasons why your 500 key fob could stop working is that it's simply out of range. The remote usually has a range of 30 feet or less, and if it's too far away from your car it will not respond to your commands. This can be easily fixed by moving it closer to your vehicle until it starts responding.

If your fob doesn't work after you replace the battery for the coin, also called a "button", "watch" or "button" or "button", it could be due to a problem with the circuit board inside. In most cases, reprogramming the fob will resolve this problem. You can find the steps for most 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 lose tension, it could prevent your coin battery from sitting properly, causing your remote to malfunction.

In rare cases the fob may be out of sync with your vehicle because of software or hardware problems. This can cause a major problem, but you can often fix this by visiting an auto locksmith to have them reprogram your fob for you. In certain instances, they may need to reinstall the software on your body control module too.

Interference

In addition to a dead coin battery The key fob might not be receiving or transmitting signals due to interference. This could happen when the keyfob is in close proximity to a radio transmitter, like a cell phone or radar detector. The key fob might not function due to a bad connection with the buttons, water damage or damage to the internal chips.

If the key fob failed to work one day in the middle of the night, or after trying every option at home to resolve it e.g. You could have a malfunctioning 500 receiver module If you've tried replacing it with a battery, reprogramming, and using an alternative key fob. The receiver module is situated under the dash and receives the radio frequency signals from the key fob. It transforms the signals into electronic commands which are then processed by the vehicle.

There's a simple method 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 erase any remaining electricity, and restart the car's computer. This can help get your key fob to function again. If the issue continues, you should consult an expert technician. They will be able diagnose the root of any problems.