Fiat 500 Key Fob Replacement If your 500 key fob isn't working Try using a different one to see if your car can detect it. If it does, the issue may be related to the battery or water damage on the fob that was originally used. Replace the battery first. Make sure that the new #CR2032 coin battery is properly inserted, with the "+" side facing down on the fob. Dead Battery The battery is often the reason for the fob not functioning. It's a simple fix, and most fobs notify you that the battery is low. There are instructions on YouTube for almost any car's key fob or look in the owner's manual. You can also bring it to a local locksmith or to the dealer that supplied it to you to replace it. Other times, a device can cease to function, and it could be a problem with the internal circuit board. It's not a common occurrence but it can occur. The internal chip can be damaged in the event you drop the fob onto something that is hard. It can be a problem if you have an aftermarket fob and the key doesn't work. In this case, you will have to visit a locksmith or dealer and get it reprogRammed to work with your 500. One 2012 FIAT 500 Flip Key Remote - resembles Ilco brand with lock, unlock and trunk buttons. New replacement keyless entry remote (will need to be cut & programmed by a locksmith) Chips damaged A fiat 500 key fob is an electronic device that transmits an indication for the car to start after you press the button. It is equipped with a microchip that contains the code which is required to communicate with the car. If the chip is damaged, it will not send the correct code, and the car won't start. It is possible to repair this kind of damage, and a locksmith can assist. United Locksmith can complete this repair on both classic and modern models, so don't hesitate to call. Locksmiths can program the new key fob. It is cheaper to do this rather than going to the dealer and it works the same way. You'll need some information for the locksmith, like the year your vehicle was manufactured and its model. If you're not sure of the best solution to this issue Try rubbing the chip with a US dollar bill. The copper in the bill is abrasive, and will get rid of dirt and oxidation. However, it will not harm the microchip. If the chip is physically damaged, it might not be capable of being repaired. This could happen if you drop the chip or run it over by your vehicle. Water Damage Water damage is likely to occur on your fob, no matter if you dropped them in the water accidentally or put them in a pocket while swimming or splashed water on them during a rainy afternoon. Even if there's only a tiny amount of water on the key, it can cause serious problems to its electronics and stop it from working properly. It is usually possible to fix this issue by removing the fob and cleaning it with a paper towel. After the fob is dry it is possible to replace its battery and it should begin working normally. You can also take your key fob to a local locksmith or auto shop to have it professionally cleaned and programmed. These experts will be able to use special equipment to ensure that the key fob works with your car's computer. If the key fob of your Fiat 500 stops working, you may feel irritated and stressed. It can be expensive and time-consuming to take your key fob to a dealer. A locksmith can handle every aspect of your car's key fob replacement without the necessity of a dealership visit. Because of this, they are a better choice than the dealership. Pairing Issues If you drop your key fob, or it stops working, and nothing else appears to be problem It could be due to the chip that is malfunctioning. This could be due to water damage or a dead battery. In most cases, this can be accomplished by following the instructions in your owner's manual. If you're having problems or your manual isn't working then you should hire an automotive locksmith complete this task. This will ensure that the chip isn't damaged and is likely to be the most cost-effective solution. Another problem with some 500 owners is that the key fob will not secure the car. This can be a big issue if you're driving to a gas station and want to fill up. https://www.thekeylab.co.uk/fiat-car-keys/ have even reported the locking mechanism on their 500's failing and requiring replacement of the entire intermediate shaft for steering. Fiat has actually mentioned this issue in a technical bulletin (TSB). A reputable locksmith can help you when your Fiat has issues. They will duplicate your current key or make you a brand new one that locks and starts the vehicle. They are able to do this without looking at your old key, and it's usually cheaper than buying a new one from the dealer.