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nissan key fobs are simple 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 require your key code, which you must keep safe and should match that of your car. Transponder Keys Transponder keys can be found in modern vehicles. They are equipped with an RFID microchip that transmits a unique vehicle code when the key is inserted into ignition. It is designed to ensure that only the correct key is able to start the engine, and to prevent theft. If you'd like to know more about the technology's working get in touch with your local locksmith or dealership for demonstrations. When the transponder is put into the ignition, it sends an electronic message to the chip that is inside the engine control unit (ECU) of the vehicle. The ECU is then able to determine whether or not the number in the key matches its digital serial number. If it does, the ECU is then able to disengage the immobilizer and permits the engine to start. If the code does not match then the ECU will reject it and prevent the engine from beginning. They are more expensive than traditional keys, however they provide additional security. The cost of these keys is higher than traditional metal keys, but they provide more security. Many people wonder if it is possible to copy the transponder key yourself. The answer is yes. However, it's preferential to leave it to auto locksmiths. Furthermore, the procedure can differ depending on the car's model and make. Mechanical Keys A lot of older Nissans had mechanical keys. These traditional metal keys didn't have remote functions, and were capable of unlocking the doors and ignition cylinders on the car. If the key you have is damaged or broken, the case is damaged, a locksmith can generally replace the inside parts and make a replacement that works like new. A licensed and reputable auto locksmith can also cut you keys at a cheaper cost than the dealership. There are several kinds of mechanical keys, each of which has its own unique replacement procedure. Linear switches come with the ability to operate in a linear manner, for instance. This means that when you push the key down it will move a certain distance until it hits the stopper or activates an internal spring. When the key is pushed into the ignition the switch will send an indication to the car to turn it up. Intelligent keys are equipped with a chip in them that communicates with the computer system in your vehicle. If you lose your key it will need to be replaced with a fresh one that has been programmed to work with the vehicle. This requires a higher degree of key technology that is only available through an automotive locksmith that is specialized, and will cost more than a standard replacement key at the dealership. Key Fobs Since the mid 1990s, key fobs are a standard in the majority of cars. You can unlock, lock and arm your car's alarm at the push of a button. Many people believe that these systems are safe enough that only those with your key code can escape with your car. Unfortunately, this is not always the case. It is possible for less cautious people to take advantage of these systems in just a few steps. It's possible that you need to replace your Nissan key fob's battery if it's no longer functioning correctly. The rechargeable CR2025 and the CR2032 batteries that are found in all key fobs last for about two years. Refer to the 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 larger issue, it might have to be replaced or programmed. These issues can be more complex than replacing the battery and could require the assistance of an auto locksmith. Some locksmiths specialize in replacing and repairing intelligent keys and can provide you with an OEM intelligent key for a lower cost than the dealer. They can also deliver the key to your home, saving you from having to leave the vehicle at a service centre. They are available 24/7 seven days a week. Remotes Certain Nissan models have a remote keyless system that utilizes a keyfob to unlock the door and/or start your engine. It is recommended that you have a spare for the event that yours gets lost. A key fob replacement that functions can save you from having pay for a tow and the cost of replacing your lost ignition keys. Fobs emit a frequency that communicates with the vehicle's onboard computer to complete a series of tasks, like locking or unlocking the doors as well as activating the trunk release, or triggering the alarm to alert you to a panic. Browse our selection of Nissan key fobs and find the best one to match your year and model. You can also purchase a preprogrammed keyfob, which is a less costly alternative. Make sure to select the correct style, since many look similar and can cause problems if they are not compatible. Online sellers who provide preprogrammed keys typically require proof of ownership or registration to prove the legitimacy of the offer. Websites that do not request this information could be scams.