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Nissan Car Key Replacement Replacing a Nissan key fob battery is typically an easy and simple task. 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 stored in a secure place and should match the one that came with your vehicle. Transponder Keys Often found in newer cars transponder keys usually contain an RFID microchip inside the key that transmits a unique code to the car every time it is put into the ignition. It is designed to ensure that only the right key can start the engine and also prevent theft. If you'd like to find out more about the technology's working, contact your local locksmith or dealership for a demonstration. When the transponder key is placed in the ignition, it transmits a signal to the chip in the vehicle's engine control unit (ECU). The ECU determines if the code on the key matches the digital serial number of the ECU. If it does, the ECU disables the immobilizer in order so that the engine can start. If the code isn't matched with the ECU will reject the signal and keep the engine from beginning. They're more expensive than traditional keys made of metal however they offer greater security. The cost of these keys is higher than traditional keys made of metal, but they provide more security. Many people wonder if they could copy a transponder keys for themselves. The answer is yes but it's best to leave it to professional auto locksmiths. Furthermore, the procedure can vary based on the vehicle's make and model. TheKeyLab were equipped with mechanical keys. The traditional keys made of metal did not have remote functions, and could only be used to open the doors of the car and the ignition cylinders. If your key fails or the case is damaged, a locksmith can usually replace the inner parts and make a new one that works like new. A reputable and certified auto locksmith should also be able to cut you a new key at a less cost than the dealership will charge. There are various kinds of mechanical key that each have their particular method for replacement. Linear switches are equipped with a linear actuation chart for instance. As you press the key down, it will move until it hits an obstruction. The switch will transmit the signal to start the car when the key is inserted into the ignition. Intelligent keys are equipped with an electronic chip that communicates with the computer system of the vehicle. This means that when you lose your keys, it must be replaced with a brand new one that has been programmed to work with your specific vehicle. This requires a more advanced key technology that is only available through an locksmith for cars. It is more expensive than a typical key replacement at the dealership. Key Fobs Key fobs have been a standard feature in most cars since the latter part of the 1990s. You can lock, unlock and arm your car's alarm system with the push of a button. Many people assume that these systems are safe enough that only those who knows your key code is able to drive away with your car. However, that's rarely the case. In just a few easy steps, less scrupulous people are able to exploit these systems. You may need to replace your Nissan key fob's battery in case it's not functioning correctly. The rechargeable CR2025 and the CR2032 batteries found in most key fobs can last for around two years. Consult your owner's guide for instructions if you are not sure how to replace the battery. If your key fob does not function because of a serious issue, you may have to replace it or program it. These issues could be more complicated than a simple replacement of the battery and might require an auto locksmith's help. Certain locksmiths specialize in replacing and repairing smart keys, and they are able to offer you an OEM smart key at less than the dealership. They can also be at your location, avoiding you the burden of having to leave your vehicle in an auto repair shop. They are also on-call all day, all week. Remotes Some Nissan models have a remote keyless system that uses keys to open the door and/or start your engine. It is recommended that you have a spare in case yours is lost. A key fob replacement that works can help you avoid having to pay for towing and the cost of replacing your ignition keys. Fobs emit frequencies that communicate with the computer in your vehicle to perform tasks like locking and unlocking doors or trunk release, and alarms that sound panic. Browse our assortment of Nissan key fobs for replacement to find the right one to your specific model and year. You can also purchase a pre-programmed key fob which is a less costly alternative. Choose the correct style since many of them look similar and can create problems if not compatible. Online sellers that offer preprogrammed key fobs usually require proof of ownership or registration to prove authenticity. Websites that do NOT ask for this information may be scams.