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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 need your key code which should be kept in a safe place and should match the one that came with your car. Transponder Keys Transponder keys are typically found in newer vehicles. They come with an RFID microchip that transmits a unique car code when the key is placed in the ignition. It is designed to stop theft by making sure that only the right key is able to start the car. Contact your local dealer or locksmith to see the demonstration of this technology. When the transponder is inserted into the ignition, the key sends an electronic message to the chip that is inside the engine control unit (ECU) of the vehicle. keyless remote is then able to determine whether the code contained in the key matches with its own digital serial number. If it does, the ECU then disengages the immobilizer, allowing the engine to start. If the code doesn't in line to the code, then the ECU will reject the signal and keep the engine from starting. They cost more than traditional keys but give you extra security. However car thieves have evolved over time and have found ways to circumvent this anti-theft device therefore the extra cost will not stop them completely. Many people wonder if is possible to copy a transponder-key yourself. The answer is yes. However, it's preferential to leave it to auto locksmiths. Furthermore, the procedure can differ depending on the car's model and make. Mechanical Keys A lot of older Nissans had mechanical keys. The traditional keys made of metal did not have remote functions, and were only capable of unlocking the doors and the ignition cylinders in the car. If your key is damaged or breaks, the case is damaged, a locksmith will generally replace the inside parts and make a new one that operates like new again. A qualified and reputable auto locksmith can also cut a key for a lower cost than the dealer. There are various types of mechanical keys, each of which has its own unique replacement procedure. Linear switches come with a linear actuation chart, for example. This means that as you push the switch down it will move certain distance until it hits the stopper or triggers an internal spring. The switch will send a signal to start the car once the key is put into the ignition. Intelligent keys are equipped with the chip that connects to the computer system of the vehicle. If you lose your key, it will need to be replaced with a brand new one that has been programmed to work with the vehicle. This requires a higher level of key technology, which can only be obtained from a specialized automotive locksmith, and will cost more than a regular replacement key at the dealership. Key Fobs Key fobs have been an integral part of many automobiles since the end of the 1990s. They let you unlock and lock the car's alarm at the press of a button. Many people think that these systems are safe enough that only those with access to your keycode can drive off with your car. However, this isn't always the case. It is possible for less cautious individuals to profit from these systems with only a few simple steps. It's possible that you need to replace your Nissan key fob's battery if it's no longer functioning properly. The majority of key fobs utilize rechargeable CR2025 or CR2032 battery, and they typically last for two years. Check the owner's manual for directions if you're not sure how to replace the battery. If your key fob won't function due to a significant issue, you might need to replace it or program it. These issues can be more difficult to repair than an easy battery replacement and they might require the assistance of a professional auto locksmith. Certain locksmiths specialize in repair and replacement of intelligent keys and can supply 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 the vehicle at a service center. They are available all hours of the day all week. Remotes There are some Nissan models that come with a remote keyless entry system that uses a key fob to unlock your door and/or turn on the engine. It is recommended to have a spare in the event that yours is lost. A working replacement fob for your key will save you the cost of a trip to the dealership for a tow and the hefty fee to replace your ignition keys. Fobs emit a sound that communicates with the car's computer to complete a series of actions, including locking or unlocking the doors as well as activating the trunk release, or triggering the alarm for panic. Browse our selection of Nissan key fobs and locate the one that is right for your specific model and year. You can also get a preprogrammed key fob, which is a cheaper alternative. Choose the right style as many of them look similar and can create problems if not compatible. Also, online sellers who offer a pre-programmed device typically require proof of ownership or registration to confirm authenticity. Sites that do not require this information could be frauds.