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Reasons Your Fiat 500 Key Fob Won't Work
A key fob from Fiat 500 makes it easy to open doors and start your vehicle. However, there are a variety of reasons why the fob won't be functioning. This includes a dead coin-battery or water damage, issues with the receiver module, and interference.
This listing is for an NEW replacement Fiat Flip Key Remote that appears similar to the Ilco brand. It must be professionally programmed (click here to search for local locksmiths in the automotive industry). It includes trunk, lock and unlock buttons.
Dead Coin Battery
The most frequent reason that your 500 key fob will not function is due to an inactive battery. Modern key fobs only have a limited range of operation and must be within only a few inches from the vehicle in order to function. If you're far away from your vehicle when you press the key fob button the car won't be able to respond, and will display the "Key Fob Not Detected" message in the instrument cluster.
If this happens, replace the battery on your coin cell (Part number CR2032) with a fresh one from a reliable brand like Panasonic, Duracell, or Energizer. You can find them at the local hardware store or on the internet.
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 flash its parking lights and the key fob should be able to operate the lock and unlock switches.
If your key fob still does not work after replacing the battery, there could be water damage that prevents it from connecting to the module in your vehicle. Water damage can occur in a number of ways, from the slightest splash to submerging the fob into salt water at the beach. If you suspect that your fob was exposed to water, you can try placing it in a dry rice bag to draw the moisture back out. If this doesn't work, you will require your fob to be replaced by an auto locksmith or dealer.
Water Damage
Water damage can occur if you submerge the fob in the ocean or wash it in a machine. Saltwater can be particularly harmful to the circuit board of the fob and can cause it to short out and eventually die. In the event that you let your fob get wet, it's not an ideal choice however, if you drop it in the water in a cup or fail to remove it from your pants pocket prior to running the washing machine do not give up hope.

Take the battery off first. Clean the electronic chip using isopropyl ethanol or a similar product and then dry it thoroughly before replacing the battery. Test the fob next to determine if it's working. If the fob doesn't work then it might need to be reprogrammed. This is usually done by an auto locksmith or dealer.
If your key is older and not programmed for your car it is necessary to replace it completely. This is a simple procedure that can be completed by a professional automotive locksmith. The locksmith must cut the key to match the ignition of your vehicle. They will also need to program the fob into the system of your car. This is a cost-effective and quick procedure that can be completed in the same day.
Receiver Module Issues
Your 500 key fob might not function because it's out of range. The remote usually has an area of 30 feet or less and if it's far from your vehicle, it won't respond to your commands. You can easily solve this issue by moving the remote closer to your car until it responds.
If you've replaced the coin battery (commonly called a "button" or "watch") and the fob won't work, it could have an internal circuit board issue. Reprogramming your fob can resolve this issue. You can find the procedure for most vehicles on YouTube or in the owner's guide.
It is possible to replace the clips made of metal that hold the coin batteries in the correct position. If they lose tension, it could hinder the battery from sitting properly, and this will cause the remote to malfunction.
In fiat 500 replacement key near me , the fob may become desync'd with your vehicle due to software problems or hardware issues. You can fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In certain instances they may have to install the software again in your body control module as well.
Interference
In addition to a dead battery on a coin The key fob might not be able to transmit or receive the signal due to interference. This could occur if the key fob is located near the radio transmitter (cell phones, radar detectors) or any other source of electromagnetic radiation. Other reasons the key fob could not function may be a lack of connection to the buttons or the internal chip, or water damage.
If the key fob has been unable to function for a while suddenly or after trying everything you can at home to resolve 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 is able to pick up the radio frequency signals from the key fob. It converts the signals into electronic commands, which are then translated by the vehicle.
Luckily, there is an easy way to reset all of the on-board systems in your 500, including the key fob. Disconnect the battery of 12 volts for about 15 minutes, by taking off the negative cable first then the positive cable. Reconnect the battery. This will remove any remaining electricity, and restart the computer of your car. This could help you get your key fob to function again. If the issue continues, you should seek the advice of an expert technician. They'll be able identify the root cause of your issue.