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How to Repair Fiat 500 Keys
There are a variety of reasons why your Fiat 500 key fob may stop working. One of the most common is that the tiny "watch" battery that's inside the device dies. It's a 3.3-volt lithium CR2032 and you can find it anywhere for less than $3.

A locksmith is the best option to contact if you require a new key for your car for the classic Fiat model. United Locksmith can provide this service and will have the tools and replacement parts needed.
Keys
On the outside, a Fiat key may appear to be basic however inside the case is an electronic chip which communicates with the car's immobiliser system. If the chip is not present, or not programmed correctly to the immobiliser, your vehicle will not be able to start. Fortunately Car Keys Solutions are able to provide standard dealer technology and equipment that will ensure your Fiat key is repaired, even the damage it sustained or is lost.
The possession of a spare key is the best way to keep your vehicle running in the event of a catastrophe or being locked out. We can supply you with a standard blank key or remote fob. We use the best quality blanks available and offer quick turnaround so that you are back on the road quickly.
Many people decide to go to an Fiat Dealership to purchase a new key. We can provide a quicker and cheaper service. You will also save on the towing costs of getting your car to and from the dealership because we can deliver the key to you. This can also cut out the waiting time, which can be as long as 10 days at a dealer.
Remotes
The remote controls for Fiat vehicles are similar to the keys, but they have an IR (infrared) LED on the end. fiat 500 key replacement cost The Keylab sends signals to the device that opens or starts the car when it is pressed. The signal is detected by a microprocessor inside the key, which converts it to a code that is then transmitted to the device.
This process is called "keyless entry". The more recent your car is, the more likely you'll have the keyless system. The more advanced your vehicle, the more features it will have. This includes everything from locking and unlocking your car with a button press and opening the doors without having to actually touch the door handle and more.
The key fob has an integrated circuit chip that connects to the immobiliser system of the car. The system can determine whether the correct key is present by looking for a particular sequence of digits within the transponder chip. The vehicle will not start in the event that the chip is not present or isn't programmed to the right immobiliser system.
A locksmith can repair the key fob in case it's damaged. The locksmith will also need to program the new key to link with the immobiliser system in the vehicle. You must be prepared to give your locksmith information about your car when they call.
Keyless Entry
If you have an entry system that is keyless on your Fiat 500, you can lock and unlock the car at any time by pressing of the button. This is a growing feature in all types of cars which adds security and convenience to the operation of your car.
Check to see if the remote keyless entry system isn't working. The battery in the fob could be depleted. If the battery is depleted replace it with a new one that is the same voltage, size and type as the original. You should also ensure that the battery contacts are clean and free from dust or corrosion.
The key fob's rubber seals to protect the chip from water, but prolonged exposure to soapy or salty water may cause the chip to fail. If your key fob has been exposed to water, take it out and let the battery dry completely before replacing it. You can also try cleaning the electronic chip using isopropyl alcohol, or an electronic cleaner.
While some people might believe that keyless entry is less secure, this system is actually more secure than traditional systems due to the fact that the code used to unlock your car is rolled away after every use. This means that hackers will not be able to gain permanent access to your vehicle, even if they intercept the signal.
Transponders
Fiat employs a crypto-key transponder system. This means that the keys/transponders have to be encoded with a secret code generated by the Body Control Module (BCM) before being "programmed" into the BCM. This is the reason why an unwritten key cannot be programmed, as the BCM has to read & write the secret code to the transponder & lock it. This process is referred to as"cloning.
These are new replacement outer case SIP22 transponder keys to your fiat 500. They come with a chip that opens the door and begins the vehicle. Locksmiths will have to cut them to fit your ignition.