How to Repair Fiat 500 Keys
There are a few reasons your Fiat 500 key FOB may cease to function. The small "watch" inside the key FOB often dies. This is an 3.3-volt lithium CR2032 and you can find it anywhere for less than $3.
If G28 require a replacement key for an older Fiat model, a locksmith is the person to call. United Locksmith offers this service and has all the parts and tools needed.
Keys
Fiat keys may appear to be simple however inside is a chip that communicates with the immobiliser system of your car. If the chip is not present, or is not programmed correctly to the immobiliser, your vehicle will not be able start. Car Keys Solutions can offer you dealer-standard equipment and technology to repair your Fiat key, even if the key is damaged or lost.
Having a spare key is the best method to keep your car running in the event of an emergency or being locked out. We can provide you with a standard blank key or a remote fob. We use the best quality blanks we can find and provide rapid turnaround time to ensure you can get back on the road as quickly as possible.
Some people will choose to visit Fiat Dealerships when they require a new ignition key, but we can offer a lower cost and quicker service. You'll also save the cost of towing your vehicle from and to the dealership, as we can come to you. This can also decrease the wait time which can range from a few days to 10 days.
Remotes
The remote controls on Fiat vehicles are like keys, however they have an IR LED (infrared). This LED sends an indication to the device that allows the car to open or stop when the button is pressed. The signal is picked up by a microprocessor located in the key, which transforms it into a code that is then transmitted to the device.
This method is referred to as "keyless entry". The more recent your car is, and the more likely it is that you have keysless entry. The more recent your car and the more features you'll likely have. This includes everything from locking and unlocking your car with a button press to unlocking the doors without having to actually hold the door handle and more.
The key fob has an integrated circuit chip that connects to the immobiliser system of the car. The system will determine whether the correct key is in place by examining a specific sequence of digits inside the transponder chip. The vehicle will not start if the chip is missing or in the event that it is not programmed to the right immobiliser system.
A locksmith can repair the key fob in case it's damaged. They will also have to program the new key to be synced with the vehicle's immobiliser. You should be prepared to provide your locksmith details about your car when they call.
Keyless Entry
With a keyless entry on your Fiat 500 you can lock or unlock your car with just a touch of a button. This technology is becoming more popular in vehicles of all types and ages as it provides security and convenience to your car's use.

If your remote keyless entry system ceases to function look to see whether the battery for the coin in the fob has gone dead. If the battery is depleted replace it with a fresh one that is the same voltage, size, and type as the original. Also, make sure that the battery's contact points are free of dust or corrosion.
The key fob is fitted with rubber seals that shield the electronic chip inside from water, but prolonged exposure to soapy or salty water can cause the chip to fail. If your key fob has been exposed to water, you must remove the battery and allow it to dry completely before putting it back in. You can also clean the electronic chip by using isopropyl and electronic cleaner.
The keyless entry system is more secure than traditional systems, since it generates the code used to unlock your car after each use. This means that even if hackers intercept the signal, they won't be able to gain permanent access to your car.
Transponders
Fiat employs a crypto-key transponder system which means that keys and transponders have to be precoded by the Body Control Module before they are "programmed" in the BCM. A key that is blank and has not been programmed can't be programmed because the BCM must read and write the secret key onto the transponder before locking it. This is referred to as the process of cloning.
These are new replacement outer case OE SIP22 transponder keys to your Fiat 500. They contain a chip that allows you to open the doors and start the car. They will need to be cut professionally by a locksmith to fit your ignition.