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nissan car key replacement Replacing the Nissan key fob battery is generally 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 must be stored in a secure location and should match the one that came with your car. Transponder Keys Most often found in modern cars transponder keys usually include an RFID microchip within the key that transmits a unique number to the car every time it is installed in the ignition. It is designed to ensure that only the correct key can start the engine and stop theft. If you'd like to learn more about how this technology works call your local locksmith or dealership to schedule demonstrations. When the transponder is put into the ignition, it sends a message to the chip within the engine control unit (ECU) of the vehicle. The ECU checks if the code on the key matches the digital serial number of the ECU. If it does, the ECU removes the immobilizer, allowing the engine to begin. If the code doesn't compatible to the code, then the ECU will deny the signal and prevent the engine from starting. They are more expensive than the traditional metal keys, however, they are more secure. The cost of these keys is more expensive than traditional metal keys however they offer more security. Many people wonder if it is possible to copy a transponder-key themselves. The answer is yes. However, it's better to leave it to auto locksmiths. The procedure can vary dependent on the make and model of your car. Mechanical Keys Many older Nissans were equipped with mechanical keys. These traditional metal keys did not have remote functions and could only be used to unlock the doors of the vehicle and the ignition cylinders. If your key breaks or the case is damaged, a locksmith will generally replace the inside parts and make a new one that works as good as new. A reputable and experienced auto locksmith is also able to make a new key at a less price than the dealership will charge. There are various kinds of mechanical keys that each have their own unique process for replacement. Linear switches are equipped with an actuation chart that is linear, for example. When you press the key 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 start it up. Intelligent keys contain an internal chip that communicates with the computer system of the vehicle. This means that if you lose your key, it will need to be replaced with a brand new one that is programmed to work with the particular vehicle. This requires a higher level of technology in the key that is only available through a specialist automotive locksmith and will cost more than a regular replacement key you can purchase from the dealership. Key Fobs Since the mid 1990s, key fobs became a standard in most automobiles. You can lock, unlock and arm your car's security alarm with the click of a switch. Many people believe that these systems are so secure that only a person with your key code could take off with your car. However, that's rarely the situation. It's possible for less scrupulous individuals to make use of these systems in the simplest of steps. You may need to replace your Nissan key fob's batteries if they aren't functioning properly. Most key fobs are powered by rechargeable CR2025 or CR2032 battery. They usually last about two years. If you're not sure of how to replace the battery, refer to the owner's manual for instructions. If your key fob doesn't work because of a more serious issue, it could need to be replaced or programmed. These problems can be more difficult to resolve than an easy battery replacement and they may require the help of an expert auto locksmith. Some companies specialize in repairing and replacing smart keys, and they are able to offer you an OEM smart key at cheaper than the dealership. They are also able to come to your house, preventing you from having to leave the vehicle at a service center. They are open 24/7 and 7 days a week. Remotes There are some Nissan models that have a remote keyless entry system which utilizes a key fob to unlock your door and/or turn on the engine. Having a spare key in case you misplace yours is highly recommended. A key fob replacement that works could save you from having to pay for a tow and the expense of replacing your lost ignition keys. Fobs emit a sound that communicates with the car's computer to complete a series of tasks, like locking or unlocking the doors and activating the trunk release, or sounding the alarm for panic. Explore our range of Nissan key fobs and choose the perfect one for your model and year. You can also buy a preprogrammed key fob, which is a more affordable alternative. Make sure to select the correct design, as some look similar and can cause headaches if not compatible. Also, online sellers offering an already-programmed fob usually require the proof of ownership or registration to ensure the legitimacy of the product. Websites that do not ask for this information may be frauds.