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Nissan Car Key Replacement Replacing a Nissan key fob battery is typically an easy and straightforward process. But first you'll need to know if your car uses an intelligent fob, push to start button or regular remote/non-transponder key. You'll also need your key code which should be stored in a secure location and should match the one that came with your car. Transponder Keys Most often found in modern cars, transponder keys contain an RFID microchip in the key that transmits a unique number to the car when it is placed in the ignition. It is designed to guard against theft by making sure that only the right key can start the vehicle. If you'd like to find out more about the technology's working call your local locksmith or dealership to schedule an explanation. When the transponder key is inserted in the ignition, it transmits an indication to the chip inside the engine control unit (ECU). The ECU will then check to see whether the code contained in the key matches its digital serial number. If it does, then the ECU disables the immobilizer in order so that the engine can start. If the code doesn't match and the ECU will refuse to accept the signal and stop the engine from beginning. The keys are more expensive than traditional keys made of metal however they offer greater security. However car thieves have developed in the past and discovered ways to circumvent this anti-theft device and so the additional cost is not enough to stop them completely. Many people ask if they can copy transponder keys by themselves. The answer is yes, but it's best to leave it to a professional auto locksmith. The process can also vary depending on the make and model of your vehicle. Mechanical Keys Many older Nissans came with mechanical keys. These keys were made of metal and did not come with remote functions, and were only able to unlock the doors and the ignition cylinders of the vehicle. A locksmith can replace the inside components of a key that is damaged or a damaged case and create a key replacement that works like new. A reputable and experienced auto locksmith can also cut keys at a cheaper price than the dealership. There are many different kinds of mechanical keys, and each has its particular method for replacement. Linear switches feature a linear actuation chart, for instance. This means that as you push the button down it will move certain distance until it hits the stopper or triggers an internal spring. The switch will transmit the signal to start the car once the key is introduced into the ignition. Intelligent keys are equipped with chips that communicate with the computer system of the vehicle. When you lose your key it will have to be replaced with a new one programmed to work for the vehicle. This requires more advanced key technology that is only accessible through a specialized locksmith for automobiles. It is more expensive than a typical key replacement at the dealership. Key Fobs Since the late 1990s, key fobs became a standard in most automobiles. They let you unlock and lock the car's alarm with a pressing of a key. Many people think that the systems are secure enough to ensure that only the person with access to your keycode is able to drive away with your car. However, this isn't always the case. It's possible for less scrupulous people to take advantage of these systems in a few easy steps. nissan replacement key fob may need to replace your Nissan key fob's battery in case it's not working properly. The rechargeable CR2025 or CR2032 batteries that are found in all key fobs will last around two years. If you're not certain how to replace the battery, refer to your owner's manual to learn more. If your key fob won't function due to a significant issue, you may need to replace it or program it. These problems can be more difficult to repair than a simple battery replacement, and may require the help of an expert auto locksmith. Some companies specialize on replacing and repairing intelligent keys and can provide you with an OEM intelligent key at a price lower than the dealer. They can also deliver the key to your home and save you from having to leave the vehicle at a repair center. They are also on-call all hours of the day all week. Remotes Some Nissan models have a remote keyless system that utilizes a keyfob to unlock the door and/or to start your engine. It is recommended to have a spare for the event that yours is lost. A functional replacement key fob will help you avoid the cost of a tow to the dealership and the pricey replacement cost for the ignition keys that you lost. Fobs emit an electromagnetic signal that communicates with the computer in the vehicle to complete a sequence of tasks, such as locking or unlocking the doors or trunk release, or triggering the panic alarm. Explore our range of Nissan key fobs and find the right one for your year and model. You can also buy a preprogrammed key fob, which is a less costly alternative. Select the correct style as numerous look alike and may create problems if not compatible. Online sellers who offer preprogrammed key fobs typically require proof of ownership or registration to confirm authenticity. Beware of sites which do not require this information and could be frauds.