Reasons Your Fiat 500 Key Fob Won't Work
A key fob from Fiat 500 makes it easy to open doors and start your vehicle. There are many reasons the fob won't work. This could be due to a dead coin-battery or water damage, issues with the receiver module, and interference.
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Dead Coin Battery
The most frequent reason why your 500 key fob doesn't work is a dead battery. Modern key fobs have a limited operating range, and must be within some feet of the vehicle to function. If you are far from your vehicle and hit the keyfob, it will not respond and display the message "Key Fob Not Detected".
If this occurs If this happens, replace the battery in the coin-cell (Part Number CR2032) with a new battery of a reputable brand like Panasonic Duracell or Energizer. You can typically find them at your local hardware store or online.
You can test the battery in the coin-cell by pressing the buttons while standing close to your Fiat 500. The parking lights will flash and the key fob should operate the lock and unlock switches.
If your key fob still isn't working after replacing the battery, it may be water damage which is preventing it from communicating with the module inside your vehicle. Water damage can occur in a variety of ways, such as a simple splash or submerging the key fob saltwater at the beach. If you suspect that your fob has been exposed to water, you can place it in a rice bag to draw out the moisture. If that doesn't work, your fob is likely to need to be reprogrammed by an experienced auto locksmith or dealer.
Water Damage
Water damage can occur when you immerse the fob in the ocean or wash it in a machine. Saltwater can cause the circuit board to short and eventually fail. Getting the fob wet is not an ideal choice however, if you drop it into a glass of water or don't remember to remove it from your pants pocket before running the washing machine and you don't have a chance, don't give in.
First, remove the battery from the fob. Clean the electronic chip with isopropyl alcohol or a similar product and then dry it completely before replacing the battery. Test the fob next 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 more recent and has not been programmed to your car it is likely to need to be replaced completely. A professional automotive locksmith can do this job. The locksmith needs to cut the key to match the ignition on your vehicle. They will also need to reprogram the fob for your car's system. This is a simple and cost-effective procedure which can be completed in the same day.
Receiver Module Issues
Your 500 key fob might stop working because it is out of range. The remote has a range of 30 feet. Therefore, in the event that you are far from your vehicle it won't be able to respond to your commands. This can be fixed by moving it closer to your vehicle until it begins responding.
If you've replaced the battery on your coin (commonly called a "button" or "watch") and your fob doesn't function it could be due to an internal circuit board issue. In the majority of cases, reprogramming your fob will solve the issue. You can find instructions on how to do this for the majority of vehicles by searching YouTube or consulting the owner's manual.
You may need to replace the metal clips that keep the coin battery in place. If they loose tension it could prevent the battery from sitting properly and could cause the remote to malfunction.
In rare cases the fob could be out of the vehicle's sync because of hardware or software problems. This could be a huge trouble, but you could usually resolve this issue by visiting an auto locksmith to reprogram your fob. In some cases the software may need to be reinstalled in 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 could happen when the keyfob is in close proximity to a radio transmitter like a cell phone or radar detector. The key fob might not function due to a poor connection with the buttons water damage or damage to the internal chips.
If your key fob suddenly stopped working, or if you have tried everything at home to fix it (e.g. replacing the battery, reprogramming it and 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.
Luckily, there is an easy method of resetting all of the onboard systems in your 500 keys, including the key fob. Disconnect the battery for 15 minutes by removing first the negative cable, then the positive cable. Then reconnect the battery. This will eliminate any remaining electrical charge, and then restart the car's computer. This can help you get your key fob working again. If the issue persists, you should seek the advice of an expert technician. fiat replacement key 'll be able to determine the exact cause of your issues.