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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 your key code, which should be kept in a secure place and should match the one that came with your vehicle. Transponder Keys Often found in newer cars Transponder keys typically come with an RFID microchip embedded in the key that transmits a unique number to the car whenever it is placed in the ignition. The idea behind this technology is to prevent theft by ensuring that only the right key can be used to start the car. If you'd like to find out more about how this technology works, contact your local locksmith or dealership to schedule an explanation. When the transponder gets inserted in the ignition, the key sends a message to the chip that is inside the engine control unit (ECU) of the vehicle. The ECU checks to see if the key's code on the key matches the digital serial number of the ECU. If it does, the ECU disengages the immobilizer so that the engine can start. If the code is not compatible it, the ECU will block the engine from starting. They are more expensive than the traditional metal keys, however, they are more secure. The cost of these keys is more expensive than traditional metal keys however they offer more security. Many people are wondering if they can duplicate a transponder key themselves – the answer is yes, but it's best to leave it to professional auto locksmiths. In addition, the process may differ based on your vehicle's model and make. Mechanical Keys Many older Nissans were equipped with mechanical keys. These traditional keys were not equipped with remote functions and were only used to open the doors of the car and the ignition cylinders. Locksmiths can replace the inside parts of a damaged key or a damaged case to create a replacement key that functions as good as new. A qualified and reputable auto locksmith can also cut you keys at a cheaper cost than the dealership. There are several types of mechanical keys that each have their own distinct replacement procedure. Linear switches are equipped with a linear actuation chart, for instance. When you press the switch down it will move until it hits the stopper. The switch will send a signal to start the car when the key is inserted into the ignition. Intelligent keys have an embedded chip that communicates with the computer system of the vehicle. This means that if you lose your key it must be replaced with a new one that has been programmed to work with your specific vehicle. This requires a more advanced key technology, only available through an automotive locksmith. It is more expensive than a standard replacement key at the dealership. Key Fobs Key fobs have become an essential feature in many automobiles since the end of the 1990s. You can unlock, lock and arm your car's alarm system with the press 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 true. In just a few easy steps, less scrupulous people are able to exploit these systems. If your Nissan's key fob isn't functioning as it should, you might need to replace the battery. The majority of key fobs utilize rechargeable CR2025 or the CR2032 battery. They usually last about two years. If you're not sure how to replace the battery, consult your owner's manual to learn more. If your key fob isn't functioning due to a larger issue, it might have to be replaced or programmed. These problems can be more difficult to fix than replacing a battery, and may require the help of a professional auto locksmith. nissan qashqai key specialize in repair and replacement of 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 your vehicle at a repair center. They are available 24 hours a day, 7 days a weeks. Remotes Some Nissan models come with a remote keyless system that utilizes a keyfob to unlock the door and/or start the engine. A spare key in case you misplace your key is highly recommended. A functional replacement key fob could save you the expense of a trip to the dealership for a tow, as well as the pricey replacement cost for your ignition keys. Fobs emit frequencies that communicate with the computer in your vehicle to perform tasks such as locking and unlocking doors opening trunks, activating trunk release and the sounding of a panic alarm. Browse our assortment of Nissan key fobs for replacement to find a match to your specific model and year. You can also buy a preprogrammed keyfob, which is a less expensive option. Make sure to select the correct style, as many look similar and can cause problems if they are not compatible. Also, online sellers who offer an already-programmed fob usually require documents of ownership or registration to prove the legitimacy of the product. Sites that do not ask for this information may be scams.