Fiat 500 Replacement Key Fob If your remote key fob has stopped working, it might be time to replace the battery If you do replace the battery and it does not work, then the problem is probably elsewhere United Locksmith specializes in the creation of new keys for classic cars We have the tools and parts needed for this job Dead Coin Battery The most common reason why your Fiat 500 key fob will not lock or unlock the doors is a dead battery The coin cell battery in the key fob can be depleted quickly when you don't utilize frequently enough If your remote starts to show signs of a loss in range or stopped functioning in the middle of the night, then your battery may be dead http//wwwannunciogratisnet/author/costdenim3 hold the battery in on the key fob If the clips aren't tight, they can cause problems with contact that can prevent your remote to receive power Use a flathead screwdriver to pry open the retaining clip and then remove the old battery Be sure to choose a replacement with the same kind of voltage, size, and specification as the original battery Exposure to water can cause the key fob to corrode or be damaged Even a small bath in warm, soapy water could cause damage to the chip It's best to keep your key fob in a dry environment Water Damage Damage to your water supply could be the cause of your key fob's not functioning properly Key fobs are fitted with rubber seals that stop them from being damaged by a light rain or a splash of water However, it is essential to keep your car keys from being tossed into the pool, ocean and washing machine The key fob comes with an electronic chip that transmits an immobilizer system in your car The chip allows the 500 to start and lock If it gets wet, it will no longer function If you're trying to determine whether your key fob still working You can clean the internal electronics with isopropyl or an electronic cleaner It is recommended to replace a key fob if it is submerged in salt water rather than attempting to repair it yourself A replacement fob may cost you a bit, but it's a lot cheaper than having to have your Fiat 500 towed to a dealership and repaired there You can also make it yourself with just a few steps Make sure you have the correct battery type before attempting to open your key fob This task is much simpler than it appears, and you can find step-by-step directions on the internet for nearly any key fob for your car Faulty Chip The chip inside the key fob communicates with the car's immobiliser unit to make sure your car is only capable of starting when the correct key is inserted If the chip is damaged, or corrupted in any way the car won't start Water damage or a dead battery are the most common causes of the chip being damaged Whatever the reason, it is recommended to delegate this task to a locksmith who will be able to replace the chip fast and at a low cost If your key fob does not work after being exposed to clean tap or rain water then remove the battery Wipe down the electronic component using a paper towel If the key fob does not work, it is likely to be a damaged chip that will need to be replaced Some people will visit their dealer in order to get a new Fiat fob However, this could be expensive United Locksmith is the best choice if you would like to have your Fiat key fob replaced at a reasonable price We have the tools and expertise necessary to fix your Fiat key fob in a timely and professional manner Faulty Receiver Module Fiat key fobs transmit a signal to the vehicle that will unlock and lock doors and start the car if it has an automatic transmission up to 50 feet There are many reasons why the fob could stop working This includes a dead coin battery damaged by water buttons, worn out buttons as well as a receiver module problem, and signal interference or an electronic chip that has failed If the fob was placed in an area that has experienced extreme trauma such as being dropped on the hard floor or washed in the washing machine the fob may not be able to communicate with the Body Control Module BCM of the vehicle This is because the BCM is a secure system that will only accept a signal from a genuine key and not accept any other If this is the case, then you will need to replace your fob A professional locksmith will take care of the entire process of replacing your key including programming a new key to your 500 They can even give you the fob cloned to work the same as the original and costs only a fraction of the price