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How to Repair The Key Lab There are many reasons why your Fiat 500 key FOB may not function properly. The tiny “watch” inside the key FOB can fail. This is an 3.3-volt lithium CR2032, and you can get it at a price of less than $3. A locksmith is the ideal choice to call if require a new car key for the classic Fiat model. United Locksmith can provide this service and has the tools and replacement parts needed. Keys Fiat keys may appear to be simple but inside is a chip that communicates with the immobiliser system of your vehicle. If this chip is not present or programmed to the immobiliser system properly then your vehicle won't start. Fortunately, Car Keys Solutions are able to offer standard technology and equipment to ensure that your Fiat key can be repaired, even in the event that it has suffered damage or is lost. A spare key can keep your vehicle running in case of an accident or lockout. Whether you need a standard blank or a remote fob, we can assist. We only use the finest blanks that are available and offer a fast turnaround to ensure you get back on the road as quickly as possible. Some people prefer to visit a Fiat Dealership to get a new key. We can offer the fastest and most affordable service. You will also save on the cost of towing your vehicle to and from the dealership, as we can bring it to you. This can also reduce the waiting time which can be anywhere from 5 to 10 days. Remotes The remote controls on Fiat vehicles look similar to the keys themselves, except they feature an IR (infrared) LED at the bottom. This LED transmits signals to the device which can open or start the car when you press. The microprocessor in the key transforms the signal into a code that is then transmitted to the device. This is referred to as “keyless entry”. The more recent your vehicle is and the more likely it is to feature a keyless entry system. The more modern your car is and the more features you'll probably have with it. This includes locking and unlocking your car with a one touch, opening the doors without touching the handle, and much more. The key fob is fitted with an integrated circuit chip which communicates with the immobiliser system of the car. The system is able to determine if the correct key is present by looking for a particular sequence of digits within the transponder chip. If the chip isn't present, or is not programmed to the correct immobiliser system, then the vehicle will not start. If the key fob has been damaged, a locksmith can create a replacement. They'll also need to program the new key to be synced with the vehicle's immobiliser. It is recommended to give your locksmith information about your vehicle when they call. Keyless Entry If you have a keyless entry system in your Fiat 500, you can lock and unlock your car from any location with the click of a button. This technology is becoming more common in vehicles of all ages and types and adds convenience and security to your vehicle's use. Check to see if your remote keyless entry system isn't working. The battery in the fob may be dead. Replace the battery with one with the same voltage size, type, and capacity as the original if it is drained. It is also important to ensure that the battery's contacts are clean and free from corrosion or dust. The rubber seals on the key fob are designed to protect the electronic chip from water. However prolonged exposure to soapy water or salty water can cause the chip to fail. If your key fob is exposed to water, you must remove the battery and allow it to dry completely before putting it back in. You can also clean the electronic chip using isopropyl ethanol or electronic cleaner. Keyless entry systems are more secure than conventional systems because it generates the code used to unlock your vehicle after every use. This means that hackers will not have the ability to gain permanent access to your vehicle, even when they intercept the signal. Transponders Fiat employs a crypto-key transponder system, which means that 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 a blank unwritten key cannot be programmed as the BCM has to read & write it's secret key to the transponder & lock it. This is referred to as the process of cloning. These are brand new replacement outer case OE SIP22 transponder keys that fit your Fiat 500. They contain a chip that opens the door and begins the vehicle. They must be cut professionally by a locksmith so that they fit your ignition.