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Reasons Your Fiat 500 Key Fob Won't Work
A key fob for the Fiat 500 is a convenient method to unlock the doors and get started the car. There are many reasons the fob won't work. This could be due to a dead coin battery or water damage, receiver module issues, or interference.
This listing is for a NEW replacement Fiat Flip Key Remote that appears similar to the Ilco brand. It has to be professionally programmed (click here to search for local locksmiths for your vehicle). It comes with 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 only have limited operating range and must be within a few inches of the vehicle to function. If you're not close to your vehicle, and you press the key fob button the car won't respond and will display an "Key Fob Not Detected" message in the instrument cluster.
If fiat doblo key programming happens If this happens, replace the battery in the coin-cell (Part Number CR2032) by a fresh one of a trusted brand like Panasonic Duracell or Energizer. They can be found in your local hardware store, or online.
After you've replaced the battery in the coin cell You can test it by standing near your Fiat 500 and pressing the buttons. The car will flash its parking lights, and the key fob will operate the lock and unlock switches.
If the key fob won't function 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 into 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 this does not work, you'll have to get your fob reprogrammed either by an auto locksmith or a dealer.
Water Damage
Water damage can occur when you immerse the fob in the ocean or wash it in a machine. Saltwater can cause the circuit board to become shorted and eventually fail. Getting the fob wet is not a good idea but if you accidentally drop it into the water in a cup or forget to remove it from your pants pocket prior to running the washer, don't give up hope.
First remove the battery from the fob. Before replacing the battery, clean the electronic chip using isopropyl or another similar product. Check the fob again to verify if it's functioning. If the key doesn't function, it may need to be programmed again. This is usually done by a professional or dealer auto locksmith.
If the key is more recent and hasn't been programmed to your vehicle, it will likely need to be replaced completely. A professional locksmith for automotive can complete this simple process. The locksmith will need the key to be cut to match your car's ignition. They'll also have to reprogram the fob in your car's system. This is an affordable and fast process that can be completed in the same day.
Receiver Module Issues
The 500 key fob you have may be inoperable because it's out of range. The remote has a range of 30 feet. So if you are too far away from your vehicle, it won't respond to your commands. It is possible to solve this issue by moving the 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 be due to an internal circuit board issue. Reprogramming the fob usually resolves this problem. There are instructions on how to do this on the majority of vehicles by searching YouTube or checking out the owner's manual.
It is possible to replace the metal clips that hold the coin battery. If they lose tension, it can stop your coin battery from being properly seated and cause your remote to malfunction.
In rare cases the fob might be out of connection with your vehicle as a result of software or hardware problems. You can fix this problem by visiting your local dealer or auto-locksmith to reprogram your key fob. In certain situations they might need to reinstall the program in your body control module, too.
Interference
In addition to a dead battery on a coin, the key fob may not be able to transmit or receive a signal due to interference. This could occur if the key fob is near radio transmitters (cell phones or radar detectors) or any other source of electromagnetic radiation. The key fob could not work because of a weak connection with the buttons water damage or damage to the internal chips.
If the key fob suddenly stopped working, out of the blue or after trying everything you can do at home to resolve it e.g. battery replacement, reprogramming and using the spare key fob, it could have a defective 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.
Luckily, there is an easy method to reset all of the on-board systems in your 500, including the key fob. Disconnect the battery for 15 minutes by removing first the negative cable and then the positive cable. Then reconnect the battery. This will clear out any remaining electricity and restart the car's computers, which can help you the key fob to function again. If the issue continues, you should consult an expert technician. They can determine the exact cause of your issues.