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How to Repair Fiat 500 Keys There are a few reasons your Fiat 500 key FOB may stop working. The tiny “watch” inside the key FOB can fail. It's an 3.3-volt lithium CR2032, and you can get it for less than $3. If you require the replacement key for an older Fiat model, a locksmith is the one to call. United Locksmith offers this service and has all the parts and tools required. Keys Fiat keys may look simple but inside is an electronic chip that communicates with the immobiliser system in your car. If the chip isn't present, or is not programmed correctly to the immobiliser, your vehicle isn't able to start. Car Keys Solutions can offer you dealer-standard equipment and technology to repair your Fiat key, regardless of whether 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 a catastrophe or being locked out. Whether you need a standard blank or remote fob we can help. We only use the finest blanks available and offer an immediate turnaround time so that you are back on the road quickly. Some people choose to visit a Fiat Dealership in order to obtain an updated key. We can offer the service faster and more affordable. You will also save on the cost of towing your car to and from the dealership because we can deliver the key to you. This can also cut down on the waiting time which is often up to 10 days at a dealer. Remotes The remote controls on Fiat cars look like the keys themselves, with the exception that they feature an IR (infrared) LED on the end. The LED sends a digital signal to the device that opens or turns off the vehicle when it is pressed. The signal is received by a microprocessor located in the key which converts it into a code that is then sent to the device. This is known as “keyless entry”. The more recent your vehicle is and the more likely it is to feature a keyless entry system. The more advanced your vehicle is, the more features it will come with. This includes everything from locking and unlocking the car with a press of a button, to opening the doors without having to actually hold the door handle and much more. The key fob is outfitted with an integrated circuit chip that communicates with the immobiliser system of the car. The system determines if the key is correct by examining a specific sequence of the transponder. The vehicle will not start in the event that the chip is not present or if it's not programmed to the correct immobiliser system. A locksmith can repair the key fob in case it is damaged. They'll also need to program the new key to sync with the car's immobiliser system. This is an important part of the process, and you should be prepared to provide details about your car to your locksmith when they call. Keyless Entry If you have keys-less entry on your Fiat 500, you can lock and unlock the car at any time with the push of the button. This technology is becoming more common in cars of all types and ages, and it adds security and convenience to your car's use. Check to see if your remote keyless entry system is not working. The battery inside the fob could be dead. Replace the battery by using a newer one of the same voltage size, type and size as the original one if it has been drained. It is also important to ensure that the battery's contact points are free of corrosion or dust. The key fob is fitted with rubber seals that shield the electronic chip from water however, prolonged exposure to soapy or salty 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 with isopropyl 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 that unlocks your vehicle is rolled back after each use. This means that hackers will not be able to gain access to the vehicle even in the event that they intercept the signal. Transponders Fiat employs a crypto-key transponder system which means that keys/transponders need to be precoded by the Body Control Module before they are “programmed” in 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 onto the transponder before locking it. fiat punto key replacement is known as cloning. These are brand new replacement outer case OE SIP22 transponder keys to your fiat 500. They come with a chip that opens the doors and starts the car. Locksmiths will need to cut the chip to fit your ignition.