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How to Repair Fiat 500 Keys
There are many reasons why your Fiat 500 key FOB may not function properly. The tiny "watch" inside the key FOB often dies. It's a 3.3-volt lithium CR2032 and you can find it at a price of less than $3.
If you require the replacement key for an older Fiat model, a locksmith is the one to contact. United Locksmith offers this service, and has all the parts and tools required.
Keys

On the outside, a Fiat key may seem basic however inside the casing is an electronic chip that communicates with your vehicle's immobiliser system. If this chip is not present or programmed to the immobiliser system properly then your vehicle won't start. Luckily, Car Keys Solutions are able to provide standard dealer technology and equipment to ensure that your Fiat key is repaired, even the damage it sustained or has been lost.
A spare key is the best way to keep your vehicle running in the event of a catastrophe or being locked out. We can provide you with a standard blank key or remote fob. We only use the finest blanks and provide a fast turnaround to ensure you are back on the road in a hurry.
Some people will choose to go to Fiat Dealerships when they require a replacement key, however we can provide a less expensive and quicker service. We can be there for you without the expense of towing your vehicle to the dealer. This can also decrease the waiting period which can last up to 10 days for dealers.
Remotes
The remote controls for Fiat vehicles look similar to the keys, but they feature an IR (infrared) LED at the end. The LED sends a digital signal to the device that can open or shut down the vehicle when pressed. The signal is picked up by a microprocessor within the key that converts it to a code that is then sent to the device.
This is known as "keyless entry". The more recent your vehicle is, the more likely you are to have a keyless entry feature. The newer your vehicle is and the more features you'll likely find in it. This includes locking and unlocking your car with a pressing a button, opening the doors without touching the handle, and much more.
The key fob has an integrated circuit chip that connects to the car's immobiliser system. The system is able to determine whether the key is genuine by checking a certain sequence within the transponder. The vehicle won't start in the event of a chip being missing or in the event that it is not programmed to the right immobiliser system.
If the fob for the key is damaged, a locksmith can create a replacement. They'll also have to program the replacement key to sync with the immobiliser of the car. You must be prepared to provide your locksmith details regarding your vehicle whenever they call.
Keyless Entry
If you have a keyless entry system on your Fiat 500, you can lock and unlock the vehicle from any location with the click of one button. This technology is becoming more common in all cars of all kinds and ages and can add security and convenience to your vehicle's use.
If your remote keyless entry system fails to work examine whether the battery in the fob has gone dead. If
key for fiat 500 is drained, replace it with a new one that is of the same voltage, size, and type as the original. Also, make sure that the battery's contacts are free of dust or corrosion.
The key fob has rubber seals that shield the chip from water, but prolonged exposure to salty or soapy water can 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 clean the electronic chip using isopropyl or electronic cleaner.
Keyless entry systems are more secure than conventional systems, as it rolls up the code used to unlock your vehicle after each use. This means that even if hackers do intercept the signal that they receive, they will not be able to gain access to your car.
Transponders
Fiat uses a crypto keys transponder system. This means that the keys/transponders have to be encoded with a secret code that is generated by the Body Control Module (BCM) before being "programmed" into the BCM. A key that is blank and has not been programmed cannot be programmed as the BCM must read and write its secret key into the transponder before locking it. This process is referred to as cloning.
These are brand new replacement outer case OE SIP22 transponder keys for your Fiat 500. They contain a chip that opens the door and starts the vehicle. Locksmiths will need to cut them to fit the ignition.