Reasons Your Fiat 500 Key Fob Won't Work
A key fob for the Fiat 500 is a convenient method to open the doors and begin the car. However, there are many reasons why the fob won't be functioning. This includes a dead coin-battery and water damage, as well as issues with the receiver module, and interference.
This listing is for an NEW replacement Fiat Flip Key Remote that is similar to the Ilco brand. It has to be professionally programmed (click here to search for local locksmiths in the automotive industry). This remote includes lock, unlock and trunk buttons.
Dead Coin Battery
The most common reason your 500 key fob will not work is the battery is dead. Modern key fobs operate with a limited operating range and must be within only a few feet from the vehicle to function. If you are not within your car and press the keyfob button it will not respond, and display the message "Key Fob Not Detected".
If this happens, replace the coin-cell battery (Part Number CR2032) by a brand new one of a reputable 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 the key fob doesn't function after replacing the battery, it may have water damage that prevents it from communicating with the receiver module in your car. Water damage can happen in a number of ways, from a light splash to submerging the fob in salt water at the beach. If you suspect your fob has been exposed to water, try putting it in a dry rice bag to pull the moisture back out. If that doesn't work, the fob might require reprogramming by a professional auto locksmith or the dealer.
Water Damage
Damage to the water supply can occur if you immerse the fob in the ocean, or wash it in a washing machine. Saltwater poses a particular risk to the fob's circuit board that can cause it to short out and eventually die. If you get the fob wet, it's not an ideal choice but if you accidentally drop it into a glass of water or don't 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 another similar product and dry it completely before replacing the battery. Test the fob afterward to check if it's working. If the fob doesn't function, it may need to be reset. This is usually handled by an auto locksmith or dealer.
If the key is a newer model and was not programmed to your car it is likely to need to be replaced completely. A professional locksmith for cars can complete this simple process. The locksmith will need the key cut to match your vehicle's ignition. The locksmith will also have to reprogram your fob in the car's system. This is a quick and affordable process that can be completed the same day.
Receiver Module Issues
One of the main reasons your 500 key fob won't be working is because it's out of range. The remote has a range of 30 feet, so in the event that you are far from your vehicle it won't be able to respond to your commands. This can be fixed by moving closer to your vehicle until it starts responding.
If you've replaced the battery in your coin (commonly called"button" or "button" or "watch") and the fob won't work It could be because of an internal circuit board issue. In most cases, reprogramming the fob will solve the issue. You can find directions on how to do this for the majority of automobiles by searching YouTube or consulting the owner's manual.
It is possible to replace the metal clips that keep the coin battery. If they loose tension, it may prevent your battery from being properly seated, causing your remote to malfunction.
In rare cases it is possible that the fob will become desync'd with your vehicle due to software problems or hardware issues. This can be a major problem, but you can frequently fix this issue by visiting an auto locksmith to have them reprogram your fob. In certain instances it is possible that the software will require reinstallation in your body control modules.
Interference
In addition to a dead coin battery The key fob might not be receiving or transmitting an signal due to interference. This can occur when the keyfob is located in close proximity to a radio transmitter, like a cellphone or radar detector. The key fob might not work due to a poor connection with the buttons, water damage or damage to the internal chips.
If your key fob suddenly stopped working, or if you have tried everything at home to fix it (e.g. replacing the battery, reprogramming it and using the spare key fob, you might have a defective receiver module on your 500. The receiver module is located under the dash and receives the radio frequency signals from the key fob. Then, the full details converts them into electronic commands that the vehicle interprets.
Luckily, there is an easy way to reset all of the on-board systems in your 500 and include the key fob. Disconnect the battery for 15 minutes by removing first the negative cable, then the positive cable. Reconnect the battery. This will erase any remaining electrical charge, and then restart the computer of your car. This could help you get your key fob to work again. If the issue persists, you should seek out an expert technician. They can determine the exact cause of your problem.