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Nissan Car Key Replacement Nissan key fob batteries are simple to replace. 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 need your key code which you must keep in a secure place and should match that of your car. Transponder Keys Commonly found in newer vehicles transponder keys usually include an RFID microchip inside the key that transmits a unique code to the car every time it is installed in the ignition. It is designed to prevent theft by ensuring that only the right key can start the vehicle. Contact your local dealership or locksmith for a demonstration of this technology. When the transponder key is placed in the ignition, it sends a signal to the chip inside the engine control unit (ECU). The ECU determines if the code on the key corresponds to the digital serial number of the ECU. If it does, then the ECU disables the immobilizer in order to allow the engine start. If the code doesn't match it, the ECU will reject it and prevent the engine from beginning. They are more expensive than traditional keys made of metal, but they are safer. However car thieves have developed over time and have found ways around this security measure, so the extra cost won't dissuade them completely. Many people wonder if is possible to copy the transponder key themselves. The answer is yes. However, it's better to leave it up to auto locksmiths. Besides, the process can differ based on your vehicle's model and make. Mechanical Keys Many older Nissan automobiles came with mechanical keys. These traditional keys did not have remote functions and were only used to unlock the doors of the car and the ignition cylinders. If your key is damaged or breaks, the case is damaged, a locksmith can typically replace the internal parts and create a replacement that works like new. A reputable and experienced auto locksmith will also be able to make a new key at a lower cost than what the dealership would charge. There are a few different kinds of mechanical keys each with its own unique replacement method. Linear switches, like have a linear actuation graph. This means that, as you push the button down, it will move a certain distance until it hits the stopper or triggers an internal spring. The switch will send a signal to start the car when the key is inserted into the ignition. Intelligent keys are equipped with an electronic chip that communicates with the computer system of the vehicle. This means that if you lose your key it will need to be replaced with a new one that is programmed to work with the specific vehicle. This requires a more sophisticated key technology that is only available through a specialist locksmith for cars. It is more expensive than a typical key replacement at the dealership. nissan micra key replacement G28 Since the late 1990s key fobs are a standard in almost all cars. You can unlock, lock and arm your car's alarm at the touch of a button. Many people believe that these systems are so secure that only someone who has your key code will be able to escape with your car. Unfortunately, this isn't always true. It is possible for less cautious individuals to make use of these systems with the simplest of steps. It's possible that you need to replace your Nissan key fob's batteries if they aren't working correctly. The rechargeable CR2025 and CR2032 batteries that are found in all key fobs will last around two years. If you're not sure of how to replace the battery, refer to the owner's manual for instructions. If your key fob isn't function because of a serious problem, you may need to replace or program it. These problems may be more complex than an easy replacement of the battery and might require the assistance of an auto locksmith. Some locksmiths specialize in replacing and repairing intelligent keys and can supply you with a OEM intelligent key at a lower price than the dealer. They can also visit you, saving you the hassle of having to leave your vehicle in an establishment for service. They are available all hours of the day seven days a week. Remotes Certain Nissan models come with a remote keyless system that makes use of keys to open the door and/or start your engine. It is recommended that you have a spare in the event that yours gets lost. A functional replacement key fob could save you the expense of a trip to the dealership for a tow, as well as the high cost of replacing your ignition keys. Fobs emit frequencies that communicate with the computer in your vehicle to perform tasks, including locking and unlocking doors opening trunks, activating trunk release and the sounding of a panic alarm. Explore our collection of Nissan key fobs and find the one that is right for your model and year. You can also buy one that is pre-programmed for the same price. Make sure you select the right style, as many look similar and can cause headaches if not compatible. Online sellers that provide preprogrammed keys typically require evidence of registration or ownership to verify the legitimacy. Beware of sites which do not require this information, and could be fraudulent.