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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 tiny "watch" battery that's inside it dies. It's a 3.3 volt lithium, CR2032, you can buy just about anywhere for under $3.
A locksmith is the best option to contact if you require a replacement car key for an old Fiat model. United Locksmith can provide this service and can provide the tools and replacement parts needed.
Keys
Fiat keys might appear simple however inside is a chip that communicates with the immobiliser system of your car. If the chip isn't present, or is not programmed correctly to the immobiliser, your car isn't able to 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.
The possession of a spare key is the most efficient way to keep your car running in the event of an emergency or being locked out. We can supply you with a standard blank key or remote fob. We use the highest quality blanks we can find and provide rapid turnaround time to ensure you are back on the road as quickly as possible.
Some people prefer to visit a Fiat Dealership when they require a new key, but we are able to provide a more affordable and faster service. We can even come to you without the expense of towing your vehicle to the dealer. This can reduce the waiting time, which is usually up to 10 days.

Remotes
The remote controls of Fiat vehicles are similar to keys, but they feature an IR LED (infrared). This LED transmits an electronic signal to the device, which opens or starts the vehicle when pressed. The signal is picked up by a microprocessor in the key, which converts it to a code that is then transmitted to the device.
This process is known as "keyless entry". The more modern your car is, and the more likely you will have an electronic keypad. The newer your vehicle is, the more features you'll likely get with it. This includes locking and unlocking your car at the one touch, opening the doors without touching the handle, and much more.
The key fob comes with an integrated circuit chip that communicates with the car's immobiliser system. The system will determine if the correct key is present by looking for a particular sequence of digits in the transponder chip. The vehicle won't start when the chip isn't present or isn't programmed to the right immobiliser system.
A locksmith can replace the key fob in case it's damaged. The locksmith will also need to program the new key so that it can sync up with the immobiliser system of the car. It is important to give your locksmith information about your car when they call.
Keyless Entry
With the keyless entry option on your Fiat 500 you can lock or unlock the car with just a touch of an button. This technology is becoming increasingly popular in all kinds of vehicles that adds security and convenience to the usage of your car.
Check to see if your remote keyless entry system isn't working. The coin battery inside the fob could be dead. Replace the battery with one with the same voltage size, type, and capacity as the one that came with it if it is drained. You should also ensure that the battery's contacts are clean and free of dust or corrosion.
The key fob's rubber seals to protect the electronic chip from water but prolonged exposure to soapy or salty water can cause the chip to fail. If
fiat 500 replacement key has been exposed to water, take it out and allow the battery to dry completely before replacing it. You can also clean the electronic chip with isopropyl, or electronic cleaner.
The keyless entry system is more secure than the traditional systems because it rolls up the code used to unlock your car after every use. This means that even if hackers are able to intercept the signal, they won't be able to gain access to your vehicle.
Transponders
Fiat uses a crypto keys transponder system which means the keys and transponders have to be encoded with a secret code by the Body Control Module (BCM) before being "programmed" into the BCM. This is why an unwritten key cannot be programmed, as the BCM must read and write the secret code to the transponder & lock it. This is referred to as"cloning.
These are new replacement outer case OE SIP22 transponder keys for your Fiat 500. They have a chip that unlocks the door and opens the vehicle. Locksmiths will have to cut the chip to fit your ignition.