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Reasons Your Fiat 500 Key Fob Won't Work

A Fiat 500 key fob makes it easy to open doors and start your vehicle. There are a myriad of reasons why the fob may stop working. This could be due to a dead coin-battery water damage, issues with the receiver module, and interference.

This listing is for a NEW replacement fiat 500 key fob Fiat Flip Key Remote - an exact replica of the Ilco brand that must be professionally programmed by a local automotive locksmith (click here to search for a Locksmith Search). Includes lock, unlock, and trunk buttons.

Dead Coin Battery

The most frequent reason that your 500 key fob doesn't work is an inactive battery. Modern key fobs come with a limited operating range, and should be within just a few feet of the vehicle to operate. If you are further away from your vehicle and press the keyfob button, it won't respond and display the message "Key Fob Not Detected".

If this happens, replace the coin cell battery (Part number CR2032) by a new one from a trusted brand like Panasonic, Duracell, or Energizer. You can usually find them at your local hardware store, or online.

You can test the battery on your coin-cell by pressing the buttons while you're standing close to your Fiat 500. The parking lights should light up and the key fob should operate the lock and unlock switches.

If the key fob won't work after replacing the battery, it could have water damage that prevents it from communicating with the receiver module in your vehicle. Water damage can happen in a number of ways, ranging from the slightest splash to submerging the fob salt water at the beach. If you suspect that your fob has been exposed to water, you can place it in a rice bag to draw out the moisture. If that doesn't work your fob will probably need to be reprogrammed by a professional auto locksmith or dealer.

Water Damage

Damage to the water supply can occur if you submerge the fob in the ocean, or wash it in a washing machine. Saltwater is especially dangerous to the circuit board of the fob which causes it to short out and eventually die. The fob getting wet is not an ideal idea but if you drop it into a glass of water or do not remember to take it out of your pants pocket before running the washer do not give up hope.

First remove the battery from the fob. Clean the electronic chip using isopropyl alcohol or a similar product and then dry it completely before replacing the battery. Check the fob to check if it's functioning. If the key doesn't function, it may have to be reset. This is usually done by a professional or dealer auto locksmith.

If your key is old and not programmed for your car it is necessary to replace it completely. A professional locksmith for automotive can complete this simple process. The locksmith will need the Key Fiat 500 to be cut to match the car's ignition. The locksmith will also have to reprogram the fob into the car's system. This is a cost-effective and quick process that can be completed within the same day.

Receiver Module Issues

One of the main reasons why your 500 key fob might 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 far from your car, it won't respond to your commands. You can fix this by moving the remote closer to your vehicle until it responds.

If you've replaced the battery in your coin (commonly known as a "button" or "watch") and the fob won't work it could be due to an internal circuit board problem. In most cases, reprogramming the fob will fix the issue. There are instructions on how to do this for all automobiles by searching YouTube or checking out the owner's manual.

You may have to replace the metal retaining clips that hold the coin battery. If they lose tension it can prevent your coin battery from sitting properly and cause your remote to malfunction.

In rare cases the fob could be out of sync with your vehicle because of software or hardware problems. This could cause a significant trouble, but you could often fix this by visiting a local dealer or auto locksmith to have them reprogram your fob. In certain instances, they may need to reinstall the program in your body control module too.

Interference

Interference can also cause the key fob to not receive or transmit a signal. This could happen when the keyfob is in close proximity to a radio transmitter, like a cellphone or radar detector. The key fob might not work because of a weak connection to the buttons, water damage or damage to the internal chips.

If the key fob suddenly stopped working, in the middle of the night or even after trying everything you can at home to fix it e.g. replacing the battery, reprogramming, and using the spare key fob, it could have a malfunctioning receiver module on your 500. The receiver module is situated under the dash and is able to pick up the radio frequency signals from the key fob. It converts them into electronic commands that the vehicle interprets.

There is a straightforward method to reset the 500's internal system, including the keyfob. Disconnect the battery of 12 volts for about 15 minutes, by taking off the negative cable first then the positive cable. Then reconnect the battery. This will remove any remaining electricity and restart the car's computers, Key fiat 500 which could help get your key fob working again. If the issue persists you should speak with a certified technician. They will be able to determine the exact cause of your problems.