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Nissan Car Key Replacement Replacing the Nissan key fob battery is typically 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 must keep in a secure place and should match that of your car. Transponder Keys Transponder keys are often found in modern vehicles. They have an RFID microchip that transmits a unique vehicle code when the key is placed in ignition. It is designed to guard against theft by making sure that only the correct key is able to start the vehicle. Contact your local dealership or locksmith for the demonstration of this technology. When the transponder gets inserted in the ignition, the key transmits an electronic message to the chip inside the engine control unit (ECU) of the vehicle. The ECU is then able to determine whether the code on the key is in line with its digital serial number. If it does, the ECU will then release the immobilizer and allows the engine to start. If the code doesn't match, the ECU will refuse to accept it and stop the engine from starting. These keys are more costly than traditional keys made of metal however they offer greater security. However replacement nissan key fob have developed to the changing times and have found ways around this anti-theft measure and the additional cost will not keep them from doing anything. Many people wonder if is possible to duplicate the transponder key yourself. The answer is yes. But, it's better to leave it up to auto locksmiths. Additionally, the process could vary based on the vehicle's model and make. Mechanical Keys Many older Nissan vehicles came equipped with mechanical keys. The traditional keys made of metal did not have remote functions and were used to open the doors of the car and the ignition cylinders. A locksmith can replace the internal components of a broken key or damaged case to make a replacement that works as good as new. A licensed and reputable auto locksmith can also cut you keys at a cheaper cost than the dealer. There are several different types of mechanical keys and each one has its own unique process for replacement. Linear switches are equipped with a linear actuation chart for instance. This means that as you push the key down it will move down a certain distance until it hits a stopper or actuates an internal spring. The switch will send a signal to start the car once the key is placed in the ignition. Intelligent keys contain a chip in them that communicates with the computer system of the vehicle. If you lose your keys, it must be replaced by a new one that is programmed to work with the vehicle. This requires a more advanced key technology, which is only available through a specialist automotive locksmith. It will cost more than a typical key replacement at the dealership. Key Fobs Key fobs have been an everyday feature in the majority of cars since the late 1990s. You can unlock, lock and arm your car's alarm with the touch of a button. Many people assume that the systems are secure enough to ensure that only the person who has access to your key code can drive off with your vehicle. However, that's rarely the situation. In just a few easy steps, less scrupulous people are able to exploit these systems. It's possible that you need to replace your Nissan key fob's battery if it's no longer functioning correctly. The majority of key fobs utilize a rechargeable CR2025 or CR2032 batteries, and they typically last for two years. Check the owner's manual for specific instructions if you're not sure how to replace the battery. If your key fob isn't function due to a significant issue, you may need to replace it or program it. These problems may be more complicated than simply replacing the battery, and may require an auto locksmith's help. Certain locksmiths specialize in the repair and replacement of smart keys, and are able to offer you an OEM smart key at a much lower price than the dealership. They are also able to deliver to you, thereby saving you the burden of having to leave your vehicle in the service center. They are also on-call all day, all week. Remotes There are some Nissan models with a remote keyless entry system which makes use of a key fob to unlock your door and/or start your engine. It is recommended that you have a spare just in case yours is lost. 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 a frequency that communicates with the computer in the vehicle to complete a sequence of tasks, like locking or unlocking the doors, activating the trunk release, or sounding the alarm to alert you to a panic. Shop our selection of Nissan replacement key fobs to find the right one to your particular model and year. You can also buy a pre-programmed key fob which is a less expensive option. Choose the correct style since many look alike and could cause problems if not compatible. Also, online sellers offering a pre-programmed fob typically require the proof of ownership or registration in order to verify the legitimacy of the product. Websites that do NOT require this information could be a scam.