10 Facts About Fiat Panda Key Fob Replacement That Can Instantly Put You In A Good Mood Reasons Your Fiat 500 Key Fob Won't Work

A key fob with the fiat 500 number is a convenient method to unlock the doors and start the car. There are a myriad of reasons why the fob may stop functioning. It could be due to a dead battery or damage to the receiver module, issues, and interfering.

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 in the automotive industry). This remote includes lock, unlock and trunk buttons.

Dead Coin Battery

The most frequent reason why your 500 key fob doesn't function is due to the battery is dead. Modern key fobs come with a limited operating range, and should be within a few feet of the vehicle in order to function. If you're not close to your vehicle and 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, replace the coin-cell battery (Part Number CR2032) with a new battery of a reputable brand such as Panasonic Duracell or Energizer. They are available at your local hardware store, or on the internet.

You can test the battery on your coin-cell by pressing the buttons while standing near your Fiat 500. The parking lights should light up and the key fob should operate the lock and unlock switch.


If your key fob doesn't work even after replacing the battery, it could be water damage that hinders it from communicating with the module inside your vehicle. Water damage can occur in many ways, including the simple splash or submerging the key fob saltwater at the beach. If you believe your fob was exposed to water, you can place it in a bag of rice to draw out the moisture. If replacement key fiat 500 isn't working, you'll need to have your fob changed by an auto locksmith or dealer.

Water Damage

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

Take the battery off first. Before replacing the battery, clean the electronic chip using isopropyl, or a similar product. Check the fob again to see if it is working. If the key does not function it could need to be reprogrammed. This is usually done by an auto locksmith or dealer.

If your key is old and has not been programmed to work with your vehicle, you will need to replace it completely. This is a simple process that can be carried out by a professional automotive locksmith. The locksmith needs to cut the key to match the ignition of your vehicle. They'll also need to reprogram the fob for your car's system. This is a fast and cost-effective process that can be completed within the same day.

Receiver Module Issues

Your 500 key fob might not function because it's out of range. The remote's range is of 30 feet, which means in the event that you are far from your car it will not respond to your commands. You can easily solve this issue by moving the remote closer to your car until it responds.

If you've replaced your coin battery (commonly called a "button" or "watch") and the fob won't work, it could have an internal circuit board problem. In the majority of cases, reprogramming your fob will fix the problem. You can find the instructions for the majority of vehicles on YouTube or in the owner's manual.

You may have to replace the metal clips that keep the coin battery. If they lose tension, it can prevent your coin battery from sitting properly, causing your remote to malfunction.

In rare cases the fob could be out of sync with your vehicle because of hardware or software issues. This can cause a major issue, but you are able to usually fix it by visiting an auto locksmith to have them reprogram your fob for you. In certain instances the software might require reinstallation to your body control modules.

Interference

Interference can also cause the key fob to not receive or transmit signals. This can occur when the keyfob's location is in close proximity to a radio transmitter like a cellphone or radar detector. The key fob may not function due to a bad connection with the buttons or water damage, or damage to the internal chips.

If the key fob has stopped working one day out of the blue or after trying everything you can at home to solve it e.g. replacing batteries, reprogramming or using the spare key fob, you may have a damaged receiver module on your 500. The receiver module, which is located under the dashboard, is able to pick up radio frequency signals from your key fob. It transforms the signals into electronic commands, which are then translated by the vehicle.

Fortunately, there's an easy method of resetting all of the on-board systems in your 500 device, including the key fob. Disconnect the battery 12 volt for approximately 15 minutes by disconnecting the negative cable first then the positive cable. Reconnect the battery. This will remove any remaining electricity, and allow you to restart the computer in your car. This can help get your key fob to work again. If the issue continues, you should seek out an expert technician. They can diagnose the exact cause of your problem.