How to Repair Fiat 500 Keys
There are many reasons why your Fiat 500 key fob may cease to function. The tiny "watch" inside the key FOB will often fail. This is a 3.3-volt lithium CR2032 and you can find it at a price of less than $3.
A locksmith is the ideal choice to call if require a replacement car key for an old Fiat model. United Locksmith offers this service and has all the tools and parts required.
Keys
Fiat keys may appear simple but inside is a chip that communicates with the immobiliser system of your car. If the chip is not present, or is not properly programmed to the immobiliser, your car isn't able to start. Car Keys Solutions can offer you dealer-grade equipment and technology to repair your Fiat key, regardless of whether the key has been damaged or lost.
A spare key will keep your vehicle running in the event of an accident or lockout. No matter if you need a standard blank or a remote fob, we are able to assist. We only use the highest quality blanks, and we offer a rapid turnaround so you can get back to driving in a short time.
Some people prefer to visit a Fiat Dealership if they need a new key, however we can offer you a cheaper and quicker service. You can also avoid the towing costs of getting your vehicle from and to the dealership, as we can bring it to you. This will also cut down on the waiting time, which is usually up to 10 days.
Remotes
The remote controls of Fiat vehicles are like keys, however they come with an IR LED (infrared). The LED transmits an electronic signal to the device which opens or turns off the vehicle when it is pressed. The microprocessor inside a key converts this signal into a code which is then sent to the device.
This process is known as "keyless entry". The more recent your vehicle is, the more likely it will be to have a keyless entry feature. The more advanced your car, the more features it will come with. This includes everything from locking and unlocking your car with a button press to opening the doors without having to actually reach the door handle and much more.
The key fob comes with an integrated circuit chip that connects to the vehicle's immobiliser system. The system is able to determine if the correct key is in place by examining a specific sequence of digits inside the transponder chip. If the chip is not there, or if it has not been programmed with the correct immobiliser system, then the vehicle will not start.
A locksmith can replace the key fob if it's damaged. They'll also need to program the new key to be synced with the vehicle's immobiliser. locked keys in car boot fiat punto is an important part of the procedure, and you should be prepared to disclose information about your vehicle to the locksmith when they call you.
Keyless Entry
With the keyless entry option on your Fiat 500 you can lock or unlock the vehicle with just a touch of an button. This technology is becoming more common in all types of cars and provides security and convenience to the usage of your car.
If your remote keyless entry system fails to work look to see whether the battery for the coin in the fob has gone dead. If the battery has been drained replace it with a new one that is of the same size, voltage and type as the original. 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 salty or soapy water could cause the chip to fail. If your key fob is exposed to water, remove the battery and allow it to dry completely before putting it back into. You can also clean the electronic chip using isopropyl ethanol or electronic cleaner.
While some may believe that keyless entry is less secure, this system is actually more secure than conventional systems due to the code used to unlock your car is rolled away after each use. This means that even if hackers attempt to intercept the signal it isn't possible for them to gain access to your car.

Transponders
Fiat utilizes a crypto-key transponder system which means that keys/transponders must be precoded by the Body Control Module before they are "programmed" within the BCM. This is the reason why an unwritten key cannot be programmed, as the BCM has to read & write it's secret key to the transponder, then lock it. This is referred to as"cloning.
These are brand new replacement outer cases OE SIP22 Transponder keys for Fiat 500. They have a chip inside that opens the doors and starts the car. They will need to be cut professionally by a locksmith so that they fit your ignition.