A Look Into The Future What's In The Pipeline? Fiat Panda Key Fob Replacement Industry Look Like In 10 Years? Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 is a convenient way to open the doors and begin the car. There are many reasons why the fob won't work. This includes a dead battery, water damage, issues with the receiver module, and interference.

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

Dead Coin Battery

A dead battery is the most common cause of your 500 key fob not functioning. Key fobs of today have only a limited range of operation and must be within only a few inches from the vehicle to work. If you're far away from your vehicle and press the key fob button the car won't be able to respond, and will display a "Key Fob Not Detected" message in the instrument cluster.

If this happens, simply replace the battery in the coin cell (Part number CR2032) with a new one from a reliable brand such as 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 standing close to your Fiat 500. The car should flash its parking lights and the key fob should be able to operate the lock and unlock switches.

If the fob's key doesn't work after replacing the battery, it might have water damage that stops it from communicating with the receiver module in your vehicle. Water damage can occur in a variety of ways, such as a simple splash or submerging the key fob saltwater at the beach. If you suspect your fob has been exposed to water, try placing it in a dry rice bag to pull the moisture back out. If this doesn't work, you will need to have the fob replaced by an auto locksmith or dealer.

Water Damage

Damage to the water supply can occur if you immerse the fob into the ocean, or wash it in a washer. Saltwater can cause the circuit board to short and then die. It's not good to let the fob get wet however, don't give it up in the event that you accidentally drop it in water or forget to remove it from your pocket.

Take the battery off first. Before replacing the battery, clean the electronic chip with isopropyl or similar products. Next try the fob and test if it works. If g28carkeys.co.uk doesn't function then it might need to be changed. This is usually handled by a dealer or professional auto locksmith.

If the key is more recent and has not been programmed to your vehicle, it will likely need to be replaced completely. This is a straightforward process that can be completed by a professional locksmith for automotive use. The locksmith must cut the key to match the ignition of your car. They will also need to reprogram the fob for your car's system. This is an affordable and fast process that can be completed within the same day.

Receiver Module Issues

One of the main reasons your 500 key fob could stop working is because it's out of range. The remote has a range of 30 feet. Therefore, when you're too far from your vehicle, it won't respond to your commands. It is possible to remedy this by moving your remote closer to your vehicle until it responds.


If you've replaced your coin battery (commonly known as a "button" or "watch") and the fob won't work, it could have an internal circuit board issue. Reprogramming the fob is usually the solution to this issue. You can find the procedure for the majority of vehicles on YouTube or in the owner's manual.

It could be necessary to replace the clips made of metal that hold the coin batteries in their place. If they loose tension it can prevent the coin battery from being properly seated and cause the remote to malfunction.

In rare cases, the fob may become desync'd with your vehicle due to software issues or hardware issues. It is possible to fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In some instances it is possible that the software will need to be reinstalled in your body control modules.

Interference

Interference can also cause the key fob to not receive or transmit the signal. This could occur if the key fob is in close proximity to a radio transmitter like a cell phone or radar detector. The key fob might not function because of a weak connection to the buttons or water damage, or damage to the internal chips.

If the key fob been unable to function for a while in the middle of the night and you've tried every option at home to solve it e.g. replacing batteries, reprogramming or using the spare key fob, you might have a faulty receiver module on your 500. The receiver module, which is located beneath the dashboard, detects radio frequency signals from your key fob. It converts the signals into electronic commands which are then interpreted by the vehicle.

Fortunately, there's an easy way to reset all on-board systems in your 500 keys, including the key fob. Disconnect the battery for 15 minutes, removing first the negative cable and then the positive cable. Reconnect the battery. This will erase any remaining electric current, and also restart the computer in your car. This can help get your key fob to function again. If the problem persists you should consult an expert technician. They will be able to determine the root cause of any issues.