It's The Ugly Reality About Fiat Panda Key Fob Replacement Reasons Your Fiat 500 Key Fob Won't Work

A key fob with the fiat 500 number is a great way to unlock the doors and get started the car. However, there are numerous reasons why the fob won't be working. This could be due to a dead coin-battery or water damage, problems with the receiver modules, 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 find local locksmiths for automotive locksmiths). Includes trunk, lock and unlock buttons.

Dead Coin Battery

A dead battery is the main reason for your 500 key fob not functioning. Modern key fobs have a limited range of operation, and should be within a few feet of 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 respond, and will display an "Key Fob Not Detected" message in the instrument cluster.

If this occurs you need to replace the battery of your coin-cell (Part Number CR2032) with a new battery of a reliable brand, like Panasonic Duracell or Energizer. You can find them at the local hardware store or online.

After you've changed the battery on the coin cell It is possible to test it by standing close to your Fiat 500 and pressing the buttons. The car should flash its parking lights, and the key fob will operate the lock and unlock switches.


If your fob's key isn't working after replacing the battery, there might be water damage that hinders it from interacting with the module inside your vehicle. Water damage can happen in a variety of ways, such as simply splashing or submerging your key fob in saltwater at the beach. If you think your fob was exposed to water, place it in a rice bag to draw out the moisture. If that doesn't work, your fob may require reprogramming by an experienced auto locksmith or the dealer.

Water Damage

Water damage can occur if you submerge the fob in the ocean or wash it in a machine. Saltwater can cause the circuit board to become shorted and eventually die. It's not a good thing to soak the fob in water however, but don't give it up if you accidentally drop it in water or fail to take it out of your pants pocket.

First, remove fiat ducato key from the fob. Clean the electronic chip using isopropyl ethanol or a similar product and dry it completely before replacing the battery. Check the fob again to check if it's working. If the key isn't working, it may have to be changed. This is usually done by an auto locksmith or dealer.

If the key is older and has not been programmed to your car it is likely to need to be replaced completely. A professional automotive locksmith can carry out this simple task. The locksmith will require the key to be cut to match your vehicle's ignition. They will also need to reprogram the fob in the car's system. This is a quick and cost-effective process that can usually be completed the same day.

Receiver Module Issues

One of the simplest reasons your 500 key fob won't be working is that it's simply out of range. The remote typically has 30 feet of range or less and if it's far from your car, it won't respond to your commands. This can be fixed by moving it closer to your vehicle until it starts responding.

If you've replaced the battery in your coin (commonly known as a "button" or "watch") and the fob isn't working, it could have an internal circuit board issue. In most cases, reprogramming the fob can resolve the problem. You can find instructions on how to do this for most vehicles by searching YouTube or reading the owner's manual.

It is sometimes necessary to replace the clips made of metal that hold the coin batteries in the correct position. If they loose tension, it can prevent the coin battery from being properly seated and can cause your remote to malfunction.

In rare cases the fob could be desync'd with your vehicle due to software problems or hardware issues. This could cause a significant problem, but you can usually resolve this issue by visiting a local dealer or auto locksmith to reprogram your fob. In some cases 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 signals. This can occur when the keyfob is located in close proximity to a radio transmitter, such as a cell phone or radar detector. Other reasons the key fob could not function could be due to a weak connection to the buttons or damage to the internal chip or water damage.

If the key fob been unable to function for a while out of the blue and you've tried everything you can do at home to resolve it e.g. replacing the battery, reprogramming, and using the spare key fob, you may have a defective receiver module on your 500. The receiver module is located under the dash and picks up the radio frequency signals from the key fob. It converts the signals into electronic commands, which are then read by the vehicle.

Luckily, there is an easy method to reset all 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. Reconnect the battery. This will eliminate any remaining electricity, and restart the computer in your car. This can help get your key fob to function again. If the issue continues you should speak with a certified technician. They can diagnose the exact cause of your issues.