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Nissan Car Key Replacement Replacing a Nissan key fob battery is usually an easy and quick 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 need your key code, which you should keep in a secure place and should match the one in your vehicle. Transponder Keys Most often found in modern cars transponder keys usually come with an RFID microchip embedded in the key that transmits a unique code to the car when it is placed in the ignition. It is designed to ensure that only the right key is able to start the engine and stop theft. Contact your local dealership or locksmith to view the demonstration of this technology. When the transponder key is inserted in the ignition, it transmits an indication to the chip inside the engine control unit (ECU). The ECU then examines whether or not the number in the key matches its own digital serial number. If it does then the ECU then disengages the immobilizer and permits the engine to begin. If the code is not matched to the code, then the ECU will deny the signal and prevent the engine from starting. They cost more than traditional keys but provide added security. The cost of these keys is more expensive than traditional metal keys, but they provide more security. Many people ask if they can duplicate a transponder key by themselves. The answer is yes however, it is best to leave it to a professional auto locksmith. Additionally, the process could differ based on your vehicle's model and make. Mechanical Keys Many older Nissans were equipped with mechanical keys. These traditional keys made of steel did not come with remote functions, and were only able to unlock the doors and ignition cylinders on the car. A locksmith can replace the inside parts of a damaged key or damaged case to create a key replacement that works as good as new. A reputable and certified auto locksmith is also able to cut you a brand new key at a less cost than the dealership will charge. There are a variety of mechanical keys and each one has its own unique process for replacement. replacement car key nissan are equipped with an actuation chart that is linear, for instance. This means that as you press the key down it will move certain distance until it reaches the stopper or triggers an internal spring. The switch will transmit the signal to start the car when the key is placed in the ignition. Intelligent keys are equipped with a chip inside them that communicates with the computer system of the vehicle. When you lose your key it must be replaced with a new one that is programmed to work with the vehicle. This requires a more sophisticated key technology, only available through a specialized locksmith for automotive. It is more expensive than a regular key replacement at the dealership. Key Fobs Key fobs have been an essential feature in many cars since the late 1990s. You can unlock, lock and arm your car's alarm system with the press of a button. Many people assume that these systems are secure enough that only someone who knows your code can leave with your car. However, that's rarely the situation. It is possible for less cautious individuals to make use of these systems in only a few simple steps. If your Nissan's key fob doesn't function as it should, you might require replacing the battery. Most key fobs have a rechargeable CR2025 or CR2032 batteries, and they generally last around two years. Refer to the owner's guide for specific instructions if you're unsure how to replace the battery. If your key fob does not function because of a serious issue, you may need to replace it or program it. These issues could be more complicated than an easy replacement of the battery, and may require assistance from an auto locksmith. Some locksmiths specialize in replacing and repairing smart keys, and can provide you with an OEM intelligent key at a cheaper cost than the dealer. They can also come to your house, preventing you from having to leave the vehicle at a garage. They are also on-call 24 hours a day, seven days a week. Remotes Some Nissan models come with 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 in case yours is lost. A replacement key fob that functions can help you avoid having to pay for a tow as well as the expense of replacing your ignition keys. Fobs emit frequencies that communicate with the computer in your vehicle to perform a series of tasks, including locking and unlocking doors, activating trunk release or alarms that sound panic. Explore our range of Nissan key fobs and find the right one for your specific model and year. You can also purchase a pre-programmed fob for an even lower cost. Just be sure to select the right style, as many look similar and can create headaches if they're not compatible. Additionally, online sellers that offer a pre-programmed device typically require documents of ownership or registration to ensure the legitimacy of the product. Websites that do NOT ask for this information may be scams.