Fiat 500 Replacement Key Fob
It's possible to replace the battery if your 500 remote key fob isn't working. If you do replace the battery and it doesn't work it may be elsewhere.
At United Locksmith, we specialize in making new keys for old automobiles. We have the tools and spare parts required for this service.
Dead Coin Battery
A dead battery is the primary cause of your Fiat 500 keyfob not locking or unlocking the doors. The coin cell battery in the key fob can be depleted quickly in the event that you don't use frequently enough. If your remote is beginning to show signs like a loss of range or has stopped working in the middle of the night, then your battery may be dead.
The battery in the key fob is held in place by steel retaining clips. If the clips aren't secure, they can cause contact issues that will stop the remote from receiving power. Make use of a flathead screwdriver to pry open the retaining clip and remove the battery. Choose a battery that is the same size, voltage and specification as the original.
The key fob could also become corroded or damaged due to exposure to water. Even a small bath in warm, soapy water could damage the chip. Keep your key fob dry.
Water Damage
If your key fob isn't working correctly, it could be due to water damage. Key fobs have rubber seals to protect them from being damaged by light rain or a splash of water. However, it is very important to keep your car keys out of the ocean, pool, and the washing machine!
The key fob has an electronic chip in it that sends a signal car's immobilizer system. This is what allows your 500 to start or lock, however should the chip become saturated, it won't be able to longer function.
You can clean your key fob's internal electronics with isopropyl Alcohol or an electronic cleaner to see whether they're still functioning. It is best to replace the key fob if it's submerged in salt water instead of trying to repair it yourself.
While a replacement fob could cost a bit of money, it is much less expensive than having to pay for your Fiat 500 to be towed to the dealership and repaired! Additionally, you can do it yourself in a few easy steps. Make sure you have the correct battery type prior to opening your key fob. This is a job that's more straightforward than it appears and there are step-by-step instructions on the internet for nearly any key fob for your car.
Faulty Chip
The chip located within the key fob communicates with the car's immobiliser system to ensure the car is capable of starting when the correct key is used. If the chip is damaged, or corrupted, your car won't start no matter what you do.
A chip that is defective can happen due to many reasons, but most commonly due to water damage or an unresponsive battery. Whatever the reason, it's recommended to delegate the work to a locksmith who will be able to repair the chip quickly and at a reasonable cost.
If your key fob fails to function after exposure to clean tap water or rain, take out the battery and clean the electronic component with a towel to ensure it's completely dry before putting it back into. If the key fob will not function, there is the possibility that it's malfunctioning components and need to be replaced.

Some people go to their dealer in order to get a new Fiat fob. However, this can be an expensive option. If you are looking for a low-cost solution to get your Fiat key fob fixed, look no further than United Locksmith. We have the tools and experience needed to repair your Fiat key fob in a timely and professional manner.
Faulty Receiver Module
Fiat key fobs send signals of up to 50 feet to the vehicle, which will open and close the doors (and start the vehicle if it has automatic transmissions). However there are some things that can cause the fob to stop functioning. This could be due to a dead battery, water damage, worn-out buttons as well as a receiver issue. signal interference or malfunctioning chips.
If G28 Car Keys was in the pocket of someone who has suffered extreme trauma (such as being dropped on the hard floor or washed in the washer) the fob may not be able to connect with the Body Control Module (BCM) of the vehicle. This is because the BCM is an extremely secure system that will only accept a signal from a genuine key and not accept any other.
If this is the case, then you must replace your fob. A professional locksmith will manage the entire replacement process including programming a new key to your 500. They can even provide a clone fob that works exactly like the original (and costs just less than the cost).