How to Repair Fiat 500 Keys
There are many reasons why your Fiat 500 key fob may stop working. One of the most common is the small "watch" battery that's inside the device dies. This is an 3.3-volt lithium CR2032, and you can get it at a price of less than $3.

If you require a replacement key for an older Fiat model, a locksmith is the right person to contact. United Locksmith can provide this service and also has the tools and replacement parts needed.
Keys
Fiat keys may appear simple however inside is a chip that is communicating with the immobiliser system in your vehicle. If the chip is not present, or not properly programmed to the immobiliser, your car will not be able to start. Fortunately Car Keys Solutions are able to provide dealer-standard technology and equipment to ensure your Fiat key is repaired, even when it has been damaged or has been lost.
Having a spare key is the best method to ensure your car is running in the event of a catastrophe or being locked out. No matter if you need a standard blank or a remote fob, we are able to assist. We only use the finest blanks and provide an immediate turnaround time so that you get back on the road in a hurry.
Many people decide to go to a Fiat Dealership in order to obtain an updated key. We can provide the service faster and more affordable. We can even come to you and save you the expense of towing your vehicle to the dealer. This can reduce the waiting time which can range from a few days to 10 days.
Remotes
The remote controls on Fiat cars look like the keys themselves, except they have an IR (infrared) LED on the top. This LED transmits an electronic signal to the device which opens or starts the vehicle when pressed. The signal is interpreted by a microprocessor within the key, which transforms it into a number that is then sent to the device.
This is referred to as "keyless entry". The more modern your car is, the more likely you will have a keyless system. The more modern your car is and the more features you'll likely get with it. This includes locking and unlocking your car with just a push of a button or opening the doors without touching the handle, and much more.
The key fob contains an integrated circuit chip that communicates with the immobiliser system of the car. The system is able to determine if the correct key is present by looking for a particular sequence of numbers in the transponder chip. If the chip is not there, or if it is not programmed to the correct immobiliser system, the vehicle will not start.
If the fob for the key is damaged, a locksmith can create a replacement. They'll also have to program the new key to sync with the car's immobiliser system. This is a crucial aspect of the procedure, and you must be prepared to provide details about your vehicle to your locksmith if they contact you.
Keyless Entry
If you have keys-less entry on your Fiat 500, you can lock and unlock your car at any time with the push of a button. This technology is becoming more prevalent in all cars of all ages and types, and it adds security and convenience to your vehicle's use.
If your remote keyless entry system fails to work Check to see if the coin battery in the fob has gone dead. Replace the battery with a newer one that has the same voltage size, type, and capacity as the original if it has been drained. You should also make sure that the contacts of the battery are free of dust or corrosion.
The rubber seals on the key fob protect the electronic chip from water. However long-term exposure to soapy water or salty water could cause the chip to fail. If your key fob is exposed to water, you must remove the battery and let it dry completely before putting it back into. You can also try cleaning the electronic chip using isopropyl ethanol or electronic cleaner.
While some people might believe that keyless entry isn't as secure, this system is actually more secure than conventional systems due to the code used to unlock your vehicle is rolled back after every use. This means that even if hackers intercept the signal it isn't possible for them to gain permanent access to your vehicle.
Transponders
Fiat uses a crypto-key transponder system, which means that the keys/transponders need to be precoded by the Body Control Module before they are "programmed" by the BCM. A key that is blank and has not been programmed can't be programmed as the BCM must read and write its secret code onto the transponder before locking it. previous is known as the process of cloning.
These are brand new replacement outer case SIP22 transponder keys to your Fiat 500. They have a chip inside that allows you to open the doors and start the car. They must be cut professionally by a locksmith so that they fit your ignition.