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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 your key code, which must be kept in a secure location and must match the one that came with your car. Transponder Keys Transponder keys are typically found in more modern vehicles. They have an RFID microchip that transmits a unique car code when the key is inserted into ignition. The idea behind this technology is to prevent theft by ensuring that only the right key can be used to start the vehicle. If you'd like to know more about how this technology works and how it works, call your local locksmith or dealer to schedule a demonstration. When the transponder key is inserted in the ignition, it transmits an electronic signal to the chip in the engine control unit (ECU). The ECU will then check to see whether or not the number in the key matches its digital serial number. If it does, then the ECU removes the immobilizer so that the engine can start. If the code does not match then the ECU will reject it and prevent the engine from starting. They are more expensive than the traditional metal keys, however they offer greater security. However car thieves have changed in the past and discovered ways to get around this anti-theft system and so the additional cost is not enough to stop them completely. Many people are wondering if it is possible to duplicate the transponder keys themselves. The answer is yes. However, it's better to leave it to auto locksmiths. Furthermore, the procedure can vary depending on your car's make and model. Mechanical Keys Many older Nissans were equipped with mechanical keys. The traditional keys made of metal did not come with remote functions and could only be used to unlock the doors of the vehicle and the ignition cylinders. If your key is damaged or breaks, the case is damaged, a locksmith can usually repair the internal parts and make a new one that operates like new again. A reputable and certified auto locksmith can also cut you a key for a lower cost than the dealer. There are various kinds of mechanical keys, and each has its unique method of replacement. Linear switches come with a linear actuation chart, for example. When you press the switch down, it will move until it comes to the stopper. When the key is put into the ignition the switch will send an alert to the car to turn it up. Intelligent keys are equipped with an electronic chip that communicates with the computer system of the vehicle. This means that if you lose your keys, it will need to be replaced with a brand new one that has been programmed to work with your particular vehicle. This requires a more sophisticated key technology that is only accessible through a specialized locksmith for cars. It is more expensive than a standard replacement key at the dealership. Key Fobs Key fobs have been an everyday feature in the majority of cars since the late 1990s. They allow you to unlock, lock and arm the alarm of your car with the push of a button. Many people assume that the systems are secure enough that only a person who knows your key code can steal your car. Unfortunately, that's not always the situation. It is possible for less cautious individuals to make use of these systems in the simplest of steps. It's possible to replace your Nissan key fob's battery in case it's not functioning properly. Most key fobs have rechargeable CR2025 or CR2032 battery, and they usually last about two years. Refer to the owner's guide for instructions if you are not sure how to change the battery. If your key fob isn't working because of a more serious issue, it might have to be replaced or programmed. These problems can be more difficult to resolve than a simple battery replacement, and might require the assistance of an expert auto locksmith. Some locksmiths specialize in fixing and replacing intelligent keys, and can provide you with an OEM intelligent key for a lower cost than the dealer. They can also deliver the key to your home, saving you from having to leave the vehicle at a service center. They are open 24/7 all week long. Remotes Some Nissan models come with a remote keyless system that uses a keyfob to open the door and/or start the engine. A spare key in case you lose your key is highly recommended. A working replacement key fob could save you the expense of a tow to the dealership and the hefty fee to replace your lost ignition keys. Fobs emit a signal that communicates with the car's computer to complete a sequence of tasks, like locking or unlocking the doors or trunk release, or sounding the alarm for panic. The KeyLab of Nissan key fobs and find the one that is right for your specific model and year. You can also get a preprogrammed key fob, which is a more affordable alternative. Be sure to choose the correct style, as they all look alike and could cause headaches if not compatible. Also, online sellers who offer a pre-programmed fob typically require evidence of ownership or registration to ensure legitimacy. Websites that don't require this information might be scams.