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Nissan Car Key Replacement Nissan key fob batteries are easy 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 should be kept in a secure place and should match the one that came with your car. Transponder Keys Commonly found in newer vehicles, transponder keys come with an RFID microchip in the key which transmits a unique code to the car every time it is put into the ignition. It is designed to ensure that only the correct key is able to start the engine and prevent theft. If you'd like to learn more about the technology's working and how it works, call your local locksmith or dealership for an explanation. When the transponder key is placed in the ignition, it transmits an electronic signal to the chip inside the engine control unit (ECU). The ECU will then check to see whether or not the code in the key matches with its own digital serial number. If it does it, the ECU is then able to disengage the immobilizer, allowing the engine to start. If the code does not match it, the ECU will refuse to accept it and stop the engine from beginning. They are more expensive than traditional metal keys but provide additional security. However car thieves have changed to the changing times and have found ways to circumvent this anti-theft device, so the extra cost will not dissuade them completely. Many people ask if they can copy transponder keys by themselves. The answer is yes but it's better to leave it to professionals who can help you. The process may differ dependent on the make and model of your vehicle. Mechanical Keys Many older Nissan cars came with mechanical keys. The traditional keys made of metal did not come with remote functions, and were capable of unlocking the doors and ignition cylinders on the car. If your key breaks or the case is damaged, a locksmith will generally replace the inside components and make a replacement that works like new. A reputable, experienced and reputable auto locksmith is also able to cut you a brand new key for a much lower cost than the dealership charge. There are various kinds of mechanical keys each with its own unique replacement procedure. Linear switches feature an actuation chart that is linear, for instance. As you press the key down, it will move until it reaches 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 have an embedded chip that communicates with the computer system in your vehicle. This means that if you lose your key, it will need to be replaced with a brand new one that has been programmed to work with your particular vehicle. This requires a higher level of technology in the key that 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. You can unlock, lock or arm your car's alarm with the click of a switch. Many people believe that these systems are secure enough to ensure that only the person who has access to your key code can drive off with your car. However, this isn't always the case. In just a few easy steps, less scrupulous people could take advantage of these systems. It's possible that you need to replace your Nissan key fob's battery in case it's not functioning properly. Most key fobs are powered by a rechargeable CR2025 or CR2032 batteries, and they generally last around two years. Consult your owner's guide for the correct procedure if not sure how to change the battery. If your key fob isn't functioning due to a more serious issue, it might need to be replaced or programmed. nissan micra duplicate key cost can be more difficult to resolve than an easy battery replacement and they may require the help of an expert auto locksmith. Some locksmiths specialize in the repair and replacement of smart keys, and they can provide you with an OEM intelligent key for an affordable price compared to the dealership. They can also visit your home, saving you from having to leave your vehicle at a garage. They are available 24 hours a day, all week. Remotes There are some Nissan models that feature a remote keyless entry system, which uses a key fob to unlock your door and/or turn on the engine. It is recommended that you have a spare for the event that yours is lost. A functional replacement key fob will save you the cost of a tow to the dealership, as well as the cost of replacing your ignition keys. Fobs emit frequencies that communicate with the vehicle's computer to perform a series of tasks such as locking and unlocking doors, activating trunk release or the sounding of a panic alarm. Explore our range of Nissan key fobs and locate the right one for your model and year. You can also purchase an already-programmed fob to make it an even more affordable option. Choose the right style as many of them look similar and can cause problems if not compatible. Additionally, online sellers selling a pre-programmed fob typically require evidence of ownership or registration in order to verify the legitimacy of the product. Be wary of websites which do not require this information and may be scams.