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Nissan Car Key Replacement Replacing the Nissan key fob battery is usually 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 need the key code that should be kept in a safe location and must match the one that came with your vehicle. Transponder Keys Often found in newer cars Transponder keys typically contain an RFID microchip in the key that transmits a unique code to the car every time it is inserted into the ignition. It is designed to prevent theft by ensuring that only the proper key is able to start the vehicle. If you'd like to find out more about how this technology works call your local locksmith or dealer to schedule an explanation. When the transponder is put into the ignition, the key sends an electronic message to the chip in the engine control unit (ECU) of the vehicle. The ECU determines if the code on the key is compatible with the serial number of the ECU. If it does, the ECU will then release the immobilizer and permits the engine to begin. If the code isn't compatible and the ECU will block the signal and prevent the engine from getting started. The keys are more expensive than traditional metal keys but give you extra security. The cost of these keys is higher than traditional keys made of metal however they offer more security. Many people wonder if it is possible to copy the transponder keys yourself. The answer is yes. However, it's better to leave it to auto locksmiths. The procedure may also differ depending on the brand and model of your car. Mechanical Keys Many older Nissan automobiles were equipped with mechanical keys. visit the next document made of metal did not feature remote functions, and were only capable of unlocking the doors and ignition cylinders of the car. If your key is damaged or breaks, the case is damaged, a locksmith will usually replace the inner parts and create a replacement that works as good as new. A reputable and experienced auto locksmith can also cut a key for a lower price than the dealership. There are several different types of mechanical keys, and each has its particular method for replacement. Linear switches come with a linear actuation chart for instance. This means that as you push the key down, it will move a certain distance until it reaches a stopper or actuates an internal spring. When the key is inserted into the ignition the switch will send an alert to the car to turn it up. Intelligent keys are equipped with an embedded chip that communicates with the computer system in your vehicle. This means that if you lose your key it will have to be replaced with a new one that has been programmed to work with the particular vehicle. This requires a more advanced key technology, only available through a specialized locksmith for cars. It will cost more than a standard key replacement at the dealership. Key Fobs Key fobs have been an integral part of many cars since the latter part of the 1990s. They let you unlock and lock the car's alarm at the pressing of a key. Many people believe that these systems are safe enough that only those who knows your code can steal your car. Unfortunately, that's not always the situation. In just a few easy steps, less scrupulous people could take advantage of these systems. If your Nissan's key fob isn't working as it should, you might require replacing the battery. The rechargeable CR2025 or CR2032 batteries that are used in the majority of key fobs last about two years. Consult your owner's guide for specific instructions if you're not sure how to replace the battery. If your key fob won't turn on due to a more serious problem, it may need to be replaced or programmed. These problems can be more complicated to fix than the simple replacement of batteries, and may require the help of an expert auto locksmith. Certain locksmiths specialize in replacing and repairing intelligent keys and can supply you with a OEM intelligent key for a lower cost than the dealer. They can also deliver to you, thereby saving you the hassle of having to leave your vehicle at a service center. They are available 24 hours a day, all week. Remotes There are some Nissan models with a remote keyless entry system, that uses a key fob to unlock your door and/or to start the engine. It is recommended that you have a spare in case yours is lost. A functional replacement key fob will save you the cost of a tow to the dealership and the cost of replacing the ignition keys that you lost. Fobs emit frequencies that communicate with the computer of the vehicle to perform a variety of tasks like locking and unlocking doors or trunk release, and sounding a panic alarm. Explore our range of Nissan key fobs and locate the one that is right for your specific model and year. You can also get a preprogrammed keyfob, which is a more affordable option. Choose the right style as numerous look alike and may create problems if not compatible. Online sellers who provide preprogrammed keys usually require proof of ownership or registration to confirm the legitimacy of the offer. Be wary of sites that don't require this information and may be fraudulent.