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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 require the key code that should be stored in a secure location and must match the one that came with your car. Transponder Keys Transponder keys are commonly used in newer cars. They come with an RFID microchip that transmits a unique car code when the key is put in ignition. It is designed to ensure that only the correct key can start the engine, and to prevent theft. If you want to know more about how this technology works call your local locksmith or dealer for demonstrations. When the transponder is placed in the ignition, the key sends a message to the chip in the engine control unit (ECU) of the vehicle. The ECU then examines whether the code contained in the key matches its own digital serial number. If it does it, the ECU is then able to disengage the immobilizer and allows the engine to start. If the code is not compatible with the code, the ECU will reject it and stop the engine from beginning. They're more expensive than traditional metal ones, however they offer greater security. The cost of these keys is higher than traditional keys made of metal but they offer greater security. Many people wonder if they can copy transponder keys at home – the answer is yes however, it is best to leave it to professional auto locksmiths. The process may differ depending on the make and model of your vehicle. Mechanical Keys Many older Nissan automobiles came with mechanical keys. These traditional keys made of steel did not feature remote functions, and were capable of unlocking the doors and ignition cylinders of the car. If The Keylab fails or the case is damaged, a locksmith will typically replace the internal components and make a replacement that works as good as new. A reputable and certified auto locksmith can also cut you a key for a lower cost than a dealership. There are various kinds of mechanical key and each one has its own unique process for replacement. Linear switches come with a linear actuation chart for instance. This means that, as you push the key down it will move certain distance until it hits a stopper or actuates an internal spring. The switch will transmit the signal to start the car when the key is inserted into the ignition. Intelligent keys contain a chip in them that communicates with the vehicle's computer system. If you lose your key it will have to be replaced with a new one that has been programmed to work with the vehicle. This requires more advanced key technology that is only available through a specialized locksmith for automotive. It will cost more than a regular key replacement at the dealership. Key Fobs Key fobs have been a standard feature in most automobiles since the end of the 1990s. You can unlock, lock or arm your car's alarm system with the press of a button. Many people believe that these systems are so secure that only someone with your key code can leave your car. Unfortunately, that's not always the case. In a few simple steps, even the most sloppy of people could take advantage of these systems. If your Nissan's key fob isn't functioning as it should, you might require replacing the battery. The rechargeable CR2025 or CR2032 batteries found in most key fobs last about two years. Refer to the owner's guide for directions if you're not sure how to change the battery. If your key fob isn't work because of a serious issue, you might need to replace or program it. These issues are more difficult to fix than the simple replacement of batteries, and they may require the help of an expert auto locksmith. Some companies specialize on replacing and repairing smart keys and can supply you with a OEM intelligent key at a cheaper cost than the dealer. They are also able to come to your home, saving you from having to leave your vehicle at a service centre. They are available all hours of the day all week. Remotes Some Nissan models come with a remote keyless system that utilizes keys to open the door and/or start your engine. It is recommended to have a spare in case yours is lost. A working replacement fob for your key will help you avoid the cost of a trip to the dealership for a tow, as well as the pricey replacement cost for your lost ignition keys. Fobs emit frequencies that communicate with the vehicle's computer to perform tasks, including locking and unlocking doors opening trunks, activating trunk release and alarms that sound panic. Shop our selection of Nissan replacement key fobs to find the perfect one for your specific model and year. You can also purchase one that is pre-programmed for the same price. Choose the right style as numerous look alike and may create problems if not compatible. Online sellers that provide preprogrammed keys usually require evidence of registration or ownership to verify the legitimacy. Websites that do NOT require this information could be a scam.