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 many reasons why the fob won't work. It could be due to a dead battery or damage to the receiver module, water problems, and interference.
This listing is for a NEW replacement Fiat Flip Key Remote that looks like the Ilco brand. It must be professionally programmed (click here to find local locksmiths for automotive locksmiths). This remote includes trunk, lock and unlock buttons.
Dead Coin Battery
A dead battery is probably the most common cause of your 500 key fob being inoperative. Modern key fobs only have only a limited range of operation and must be within a few inches of your vehicle to function. If you are far from your vehicle and hit the keyfob, it will not respond, and display the message "Key Fob Not Detected".
If this happens, replace the battery on your coin cell (Part number CR2032) with a new one from a trusted brand like Panasonic, Duracell, or Energizer. They are usually available in your local hardware store, or online.
After you've replaced the battery in the coin cell you can test it by standing next to your Fiat 500 and pressing the buttons. The car should blink its parking lights, and the key fob should work the lock and unlock switches.
If your key fob doesn't work even after replacing the battery, there might be water damage that has prevented it from communicating with the module inside your vehicle. Water damage can occur in many ways, such as an easy splash or submerging your key fob in saltwater at the beach. If you suspect your fob was exposed to water, try putting it in a dry rice bag to draw the moisture out. If this isn't working, you'll have to get your fob reset by an 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 washer. Saltwater can be particularly harmful to the fob's circuit board that can cause it to short out and eventually die. It's not good to soak the fob in water however, but don't give it up when you accidentally drop it in water or fail to take it out of your pocket.
First, remove the battery. Clean the electronic chip with isopropyl or a similar product and dry it completely before replacing the battery. Then, test the fob to verify if it is working. If the fob doesn't work, it may have to be changed. This is typically done by a professional or dealer auto locksmith.
If your key is a bit older and is not programmed for your car You will need to replace it completely. A professional locksmith for automotive can complete this simple process. The locksmith must cut the key to match the ignition of your vehicle. The locksmith also needs to reprogram your fob in the car's system. This is a cheap and quick procedure that can be completed on the same day.
Receiver Module Issues
One of the most common reasons your 500 key fob won't be 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 remedy this by moving your remote closer to your car until it responds.
If your fob won't work after replacing the battery inside the coin, which is also known as a "button", "watch" or "button" or "button", it may be due to a malfunction on the circuit board inside. In the majority of cases, reprogramming your fob will resolve this problem. There are instructions on how to do this for most vehicles by searching YouTube or looking through the owner's manual.
It is possible to replace the clips made of metal that hold the coin batteries in their place. If they lose tension, they could stop the battery from being properly seated and could cause your remote to malfunction.
In rare cases, the fob may become disconnected from your vehicle due to software or hardware issues. This could cause a significant issue, but you are able to frequently fix this issue by visiting an auto locksmith to reprogram your fob. In fiat 500 key button replacement may have to reinstall the software on your body control module, as well.
Interference
Interference can also cause the key fob not to receive or transmit the signal. This can happen when the key fob is close to a radio transmitter (cell phones, radar detectors) or another source of electromagnetic radiation. Other reasons why the key fob might not work include a weak connection to the buttons or the internal chip or water damage.
If the key fob been unable to function for a while suddenly, or after trying every option at home to solve it e.g. replacing batteries, reprogramming or using the spare key fob, you may have a malfunctioning receiver module on your 500. The receiver module, which is located under the dashboard, detects radio frequency signals from your key fob. It transforms the signals into electronic commands, which are then read by the vehicle.
Fortunately, there's an easy way to reset all on-board systems in your 500 and include the key fob. Disconnect the battery of 12 volts for about 15 minutes by removing the negative cable and then the positive cable. Reconnect the battery. This will clear any residual electricity, and restart the computer in your car. This could help you get your key fob to function again. If the issue persists you should speak with an experienced technician. They will be able to determine the exact cause of any problems.