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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 also need the key code that should be kept in a safe place and should match the one that came with your car. Transponder Keys Transponder keys can be found in newer vehicles. They feature an RFID microchip that sends a unique code for the car when the key is placed in ignition. It is designed to guard against theft by ensuring that only the right key can be used to start the car. If you'd like to learn more about the technology's working and how it works, call your local locksmith or dealer for a demonstration. When the transponder is put into the ignition, the key sends a message to the chip that is inside the engine control unit (ECU) of the vehicle. The ECU then examines whether or not the number in the key matches its own digital serial number. If it does, then the ECU disengages the immobilizer so that the engine can start. If the code is not compatible it, the ECU will reject it and stop the engine from beginning. nissan replacement car keys are more expensive than traditional metal keys but offer additional security. The cost of these keys is higher than traditional keys made of metal but they offer greater security. Many people wonder if it is possible to copy the transponder key themselves. The answer is yes. However, it's best to leave it up to auto locksmiths. Besides, the process can vary depending on your car's make and model. Mechanical Keys Many older Nissans were equipped with mechanical keys. These keys were made of metal and didn't have remote functions, and were only able to unlock the doors and the ignition cylinders in the car. Locksmiths can replace the inner components of a damaged key or damaged case to create a new key that functions exactly like new. A reputable and certified auto locksmith can also cut you keys at a lower cost than a dealership. There are several different types of mechanical key that each have their own unique process for replacement. Linear switches, like are equipped with a linear actuation graph. This means that, as you push the button down it will move a certain distance until it reaches the stopper or activates an internal spring. The switch will send a signal to start the car when the key is introduced into the ignition. Intelligent keys contain an electronic chip that communicates with the computer system of the vehicle. This means that when you lose your key, it will have to be replaced with a brand new one that has been programmed to work with the particular vehicle. This requires a higher level of technology for keys that can only be obtained from a specialist automotive locksmith and will cost you more than a standard replacement key from the dealership. Key Fobs Since the late 1990s key fobs became a standard in the majority of automobiles. They let you unlock and lock the car's alarm with a push of a button. Many people believe that the systems are secure enough to ensure that only the person who knows your code can drive off with your vehicle. Unfortunately, this isn't always true. It is possible for less cautious individuals to profit from these systems in just a few steps. If your Nissan's key fob isn't working as it should, you might need to replace the battery. The majority of key fobs utilize rechargeable CR2025 or the CR2032 battery, and typically last for 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 working because of a more serious problem, it may need to be replaced or programmed. These issues may be more complex than an easy replacement of the battery and might require the assistance of an auto locksmith. Certain locksmiths specialize in repair and replacement of intelligent keys and will provide you with an OEM intelligent key at a cheaper cost than the dealer. They can also come to your home and save you from having to leave your vehicle at a garage. They are also on-call all hours of the day, seven days a week. Remotes There are Nissan models with a remote keyless entry system which utilizes a key fob to unlock your door and/or to start the engine. Having a spare key in case you misplace your key is highly recommended. A key fob replacement that functions can help you avoid having to pay for towing and the cost of replacing your lost ignition keys. Fobs emit frequencies that communicate with the car's computer to perform a series of tasks, including locking and unlocking doors, activating trunk release or alarms that sound panic. Explore our collection of Nissan key fobs and find the best one for your specific model and year. You can also order one that is pre-programmed for an even lower cost. Choose the correct style since many look alike and can cause problems if not compatible. Also, online sellers who offer a pre-programmed fob typically require proof of ownership or registration in order to verify legitimacy. Websites that don't request this information could be scams.