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Nissan Car Key Replacement Replacing the Nissan key fob battery is typically a quick and simple 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 require your key code, which should be stored in a secure location and should match the one that came with your car. Transponder Keys Transponder keys are often used in newer cars. key replacement nissan come with an RFID microchip that emits a unique car number when the key is inserted into ignition. It is designed to ensure that only the right key can be used to start the engine and also prevent theft. Contact your local dealership or locksmith to view the demonstration of this technology. When the transponder is placed into the ignition, the key transmits an information to the chip within the engine control unit (ECU) of the vehicle. The ECU checks if the code on the key matches the serial number digital of the ECU. If it does it, the ECU then disengages the immobilizer and allows the engine to begin. If the code doesn't match then the ECU will block the engine from beginning. These keys are more costly than traditional keys made of metal, but they provide greater security. The cost of these keys is more expensive than traditional metal keys however, they provide greater security. Many people wonder if you can copy transponder keys for themselves. The answer is yes but it's better to leave the job to professional auto locksmiths. Additionally, the process could differ depending on the car's model and make. Mechanical Keys Many older Nissan cars came with mechanical keys. These traditional metal keys did not feature remote functions, and were capable of unlocking the doors and the ignition cylinders in the car. If your key breaks or the case is damaged, a locksmith can usually replace the inner parts and create a replacement that works like new. A reputable, experienced and reputable auto locksmith will also be able to cut a new key for a much lower cost than the dealership charge. There are a few different types of mechanical keys, each of which has their own distinct replacement procedure. Linear switches are equipped with the ability to operate in a linear manner, for example. This means that when you push the button down it will move a certain distance until it hits an obstruction or triggers an internal spring. When the key is inserted into the ignition the switch will send an electronic signal to the car to turn it up. Intelligent keys have chips that communicate with the computer system of the vehicle. When you lose your key it will have to be replaced with a fresh key that is programmed for the vehicle. This requires a higher degree of key technology, which is only available from an automotive locksmith that is specialized, and will cost more than a standard replacement key would at the dealership. Key Fobs Key fobs have been an everyday feature in the majority of cars since the mid 1990s. You can lock, unlock and arm your car's security alarm with the touch of a button. Many people think that these systems are safe enough that only those who knows your key code is able to drive away with your vehicle. However, this isn't always the case. It's possible for less scrupulous individuals to profit from these systems in the simplest of steps. It's possible that you need to replace your Nissan key fob's battery if it's no longer working correctly. Most key fobs have rechargeable CR2025 and CR2032 battery, and they typically last for two years. If you're not sure how to change the battery, refer to your owner's manual for guidance. If your key fob isn't functioning due to a more significant issue, it might need to be replaced or programmed. These issues are more complicated to fix than a simple battery replacement, and they may require the help of a professional auto locksmith. Certain locksmiths specialize in the repair and replacement of smart keys, and they are able to offer you an OEM intelligent key for cheaper than the dealership. They can also come to you, saving you the burden of having to leave your vehicle in an auto repair shop. They are available 24 hours a day, all week. Remotes There are some Nissan models that have a remote keyless entry system that uses an electronic key fob to unlock your door and/or turn on the engine. Having a spare key in case you misplace your key is highly recommended. A working replacement key fob will save you the cost of an extra trip to the dealership and the hefty fee to replace the ignition keys that you lost. Fobs emit frequencies that communicate with the computer of the vehicle to perform tasks such as locking and unlocking doors and trunk release, as well as alarms that sound panic. Shop our selection of Nissan replacement key fobs to find the right one to your specific model and year. You can also buy an already-programmed fob to make it an even lower cost. Choose the correct style since many look alike and could cause problems if they are not compatible. Also, online sellers who offer a pre-programmed device typically require documents of ownership or registration in order to verify legitimacy. Websites that do not ask for this information may be scams.