Reasons Your Fiat 500 Key Fob Won't Work

A Fiat 500 key fob makes it simple to open doors and start your vehicle. There are a variety of reasons why the key fob might stop working. This includes a dead battery or water damage, issues with the receiver module, and interference.

This listing is for an NEW replacement Fiat Flip Key Remote that appears similar to the Ilco brand. It needs to be professionally programmed (click here to find local locksmiths for automotive locksmiths). It includes trunk, lock and unlock buttons.

Dead Coin Battery

The most frequent reason why your 500 key fob won't function is due to an inactive battery. Modern key fobs have a very restricted operating range, and must be within only a few feet from the vehicle to operate. If you are further away from your vehicle, and you press the keyfob button it won't 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 reputable brand like Panasonic, Duracell, or Energizer. You can typically find them in your local hardware store or online.

You can test the coin-cell battery by pressing the buttons while you are standing close to your fiat key replacement (click over here) 500. The car will blink its parking lights, and the key fob will operate the lock and unlock switches.

If the key fob won't work after replacing the battery, it may be damaged by water that blocks it from communicating with the receiver module in your vehicle. Water damage can happen in a number of ways, ranging from the slightest splash to submerging your fob in salt water at the beach. If you suspect your fob has been exposed to water, try placing it in a dry rice bag to draw the moisture out. If that doesn't work, your fob will probably need to be reprogrammed by a professional auto locksmith or dealer.

Water Damage

Water damage can happen if you immerse the fob in the ocean or wash it in a washing machine. Saltwater is particularly dangerous to the circuit board of the fob and can cause it to short out and eventually end up dying. It's not a good idea to get the fob wet however, but don't give it up in the event that you accidentally drop it in the water or don't remove it from your pocket.

First remove the battery from the fob. Before replacing the battery clean the electronic chip using isopropyl or another similar product. Check the fob again to determine if it's working. If the key does not function, it may need to be reset. This is usually done by an auto locksmith or dealer.

If the key is a newer model and has not been programmed to your car It is likely that it needs to be replaced completely. A professional locksmith for cars will be able to complete this process. The locksmith will need the key to be cut to match the car's ignition. They will also need to reprogram the fob for your car's system. It's a simple and cost-effective procedure that can be completed in the same day.

Receiver Module Issues

The 500 key fob could not work because it's out of range. The remote's range is of 30 feet. So in the event that you are far from your car it will not respond to your commands. This can be easily fixed by moving it closer to your vehicle until it starts responding.

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. Reprogramming the fob is usually the solution to this problem. You can find the steps for most vehicles on YouTube or in the owner's guide.

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

In rare cases the fob could be desync'd with your vehicle because of software or hardware issues. You can fix this problem by visiting your local auto-locksmith or dealer to reprogram your key fob. In certain instances, they may need to reinstall the software on your body control module as well.

Interference

Interference can also cause the key fob to not receive or transmit a signal. This could occur if the keyfob is located in close proximity to a radio transmitter like a cell phone or radar detector. The key fob may not work due to a bad connection to the buttons water damage or damage to the internal chips.

If the key fob has failed to work one day suddenly and you've tried everything you can at home to solve it e.g. battery replacement, reprogramming and using the spare key fob, you may have a defective receiver module on your 500. The receiver module, located beneath the dashboard, is able to pick up radio frequency signals from your key fob. It transforms the signals into electronic commands that are then processed by the vehicle.

There is a straightforward method to reset the 500's in-board system, including the keyfob. Disconnect the battery for 15 minutes by taking off first the negative cable and then the positive cable. Reconnect the battery. This will clear out any remaining electrical charge and restart the car's computers. This could help get your key fob working again. If the issue persists it is recommended that you consult an expert technician. They will be able to diagnose the exact cause of your problems.