Reasons Your Fiat 500 Key Fob Won't Work

A key fob from Fiat 500 is a handy way to open the doors and begin the car. There are a variety of reasons why the fob could stop working. These include a dead battery or damage to the receiver module, issues, and interfering.

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Dead Coin Battery

A dead battery is probably the most common reason for your 500 key fob not working. Modern key fobs offer a limited range of operation and must be within just a few inches of the vehicle to work. If you're far away from your vehicle when you press the key fob button the car won't respond, and will display a "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, such as Panasonic Duracell or Energizer. You can usually find them at your local hardware store or online.

You can test the battery in the coin-cell by pressing the buttons while you're standing close to your fiat car keys 500. The parking lights should flash and the key fob will operate the lock and unlock switch.

If your fob's key doesn't work even after replacing the battery, there may be water damage that prevents it from interacting with the module inside your vehicle. Water damage can happen in many ways, including simply splashing or submerging your key fob in saltwater at the beach. If you suspect your fob was exposed to water, try placing it in a dry rice bag to draw the moisture back out. If that doesn't work your fob will probably require reprogramming by an experienced auto locksmith or dealer.

Water Damage

Damage where to get a fiat key cut the water supply can occur if you immerse the fob into the ocean, or wash it in a washing machine. Saltwater is particularly dangerous to the fob's circuit board and can cause it to short out and eventually die. In the event that you let your fob get wet, it's not an option however, if you drop it in a cup of water or fail to take it out of your pants pocket prior to running the washer, don't give up hope.

First take the battery off the fob. Before replacing the battery clean the electronic chip using isopropyl or another similar product. Then test the fob to verify if it is working. If the key doesn't work, it might need to be changed. This is usually handled by an auto locksmith or dealer.

If the key is more recent and has never been programmed to your vehicle it is likely to need to be replaced completely. A professional locksmith in the automotive industry can carry out this simple task. The locksmith needs to cut the key to match the ignition of your vehicle. They'll also have to reprogram the fob to your vehicle's system. This is a cost-effective and quick procedure that can be completed on the same day.

Receiver Module Issues

Your 500 key fob might not function because it's out of range. The remote typically has an operating range of 30 feet or less and if it's far away from your car it won't respond to your commands. It is possible to remedy this by moving your remote closer to your car until it responds.

If you've replaced your coin battery (commonly called"button" or "button" or "watch") and the fob won't work it could be due to an internal circuit board problem. Reprogramming the fob is usually the solution to this issue. You can find the instructions on how to do this for all vehicles by searching YouTube or looking through the owner's manual.

It is sometimes necessary to replace the clips made of metal that hold the coin batteries in place. If they lose tension it may prevent your battery from being properly seated, causing your remote to malfunction.

In rare instances the fob could be disconnected from your vehicle due to software issues or hardware issues. It is possible to fix this issue by visiting your local auto-locksmith or dealer to reprogram your key fob. In certain instances the software might require reinstallation to your body control modules.

Interference

In addition to a dead battery on a coin The key fob may not be receiving or transmitting the signal due to interference. This may happen if the keyfob is located in close proximity to a radio transmitter, like a cellphone or radar detector. Other reasons why the key fob may not function may be a lack of connection to the buttons, damage to the internal chip, or water damage.

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

There is a simple way to reset the 500's onboard system including the keyfob. Disconnect the battery for 15 minutes, removing first the negative cable, then the positive cable. Reconnect the battery. This will erase any remaining electric current, and also restart the computer in your car. This could help you get your key fob working again. If the issue persists you should speak with an expert certified technician. They will be able to determine the exact cause of issues.