Reasons Your Fiat 500 Key Fob Won't Work

A key fob from fiat 500 key fob reset 500 makes it easy to open doors and start your car. However, there are many reasons why the fob won't be working. It could be due to a dead battery damaged receiver module, water damage issues, and interfering.

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Dead Coin Battery

A dead battery is the most frequent cause of your 500 key fob that isn't working. Modern key fobs have a limited operating range, and should be within some feet of the vehicle to operate. If you're not close to your vehicle when you press the key fob button the car won't be able to respond, and will display the "Key Fob Not Detected" message in the instrument cluster.

If this occurs, replace the coin-cell battery (Part Number CR2032) by a brand new one of a reputable brand such as Panasonic Duracell or Energizer. They are usually available at your local hardware store, or online.

You can test the battery on your coin-cell by pressing the buttons while you're standing close to your fiat 500 remote key programming 500. The car will blink its parking lights, and the key fob will operate the lock and unlock switches.

If your fob's key isn't working even after replacing the battery, it may be water damage which has prevented it from interacting with the module inside your vehicle. Water damage can happen in a number of ways, from the slightest splash to submerging the fob into salt water at the beach. If you suspect your fob was exposed to water, put it in a dry rice bag to draw the moisture out. If that doesn't work your fob is likely to require reprogramming by an experienced locksmith or dealer.

Water Damage

Water damage can happen if you immerse the fob in the ocean, or wash it in a machine. Saltwater poses a particular risk to the circuit board of the fob, causing it to short out and eventually end up dying. If you get the fob wet, it's not a good idea, but if you drop it in the water in a cup or fail to take it out of your pocket before you run the washing machine, don't give up hope.

First, remove the battery. Before replacing the battery, clean the electronic chip using isopropyl or a similar product. Then try the fob and test if it works. If the key doesn't work, it may need to be programmed again. This is usually handled by a professional or dealer auto locksmith.

If the key is more recent and hasn't been programmed to your vehicle It is likely that it needs to be replaced completely. A professional automotive locksmith can do this job. The locksmith will need the key to be cut to match your car's ignition. They'll also need to reprogram the fob for the car's system. This is a quick and inexpensive process that can usually be completed in the same day.

Receiver Module Issues

One of the most common reasons why your 500 key fob might stop working is that it's simply out of range. The remote has a maximum range of 30 feet, which means in the event that you are far from your car it won't be able to respond to your commands. It can be solved by moving it closer to your vehicle until it begins responding.

If you've replaced the battery on your coin (commonly known as"button" or "button" or "watch") and your fob still won't work, it could have an internal circuit board problem. Reprogramming the fob usually resolves the issue. You can find directions on how to unlock fiat 500 boot without key to do this for all automobiles by searching YouTube or consulting the owner's manual.

It may be necessary to replace the clips made of metal that hold the coin batteries in place. If they become loose, it can stop your coin battery from being properly seated and cause your remote to malfunction.

In rare instances, the fob might be out of the vehicle's sync because due to hardware or software issues. This can cause a major problem, but you can usually resolve this issue by visiting a local dealer or auto locksmith to reprogram your fob for you. In certain situations, they may need to reinstall the software in your body control module, as well.

Interference

Interference can also cause the key fob to not be able to receive or transmit signals. This may happen if the keyfob is located in close proximity to a radio transmitter, such as a cell phone or radar detector. Other reasons why the key fob may not function may be a lack of connection to the buttons and internal chip or water damage.

If your key fob suddenly stopped working, or you have tried everything at home to solve the issue (e.g. battery replacement, reprogramming and using the spare key fob, you might have a defective receiver module on your 500. The receiver module, located under the dashboard, is able to pick up radio frequency signals from your key fob. Then, it converts them into electronic commands that the vehicle interprets.

There's a quick and easy way to reset the 500's in-board system, including the keyfob. Disconnect the battery for 15 minutes, removing first the negative cable and then the positive cable. Then reconnect the battery. This will erase any remaining electricity, and allow you to restart the car's computer. This can help get your key fob working again. If the problem persists you should consult an expert technician. They'll be able to determine the exact cause of your problem.