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Nissan Car Key Replacement Replacing the Nissan key fob battery is typically an easy and quick 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 need your key code, which you should keep in a safe location and must match the one of your car. Transponder Keys Transponder keys can be found in newer vehicles. They have an RFID microchip that emits a unique car number when the key is inserted into the ignition. It is designed to ensure that only the right key can start the engine, and to prevent theft. Contact your local dealer or locksmith to view the demonstration of this new technology. When the transponder keys are inserted into the ignition, it sends a signal to the chip inside the engine control unit (ECU). The ECU determines if the code on the key matches the digital serial number of the ECU. If it does, then the ECU will release the immobilizer to allow the engine to start. If the code doesn't match, the ECU will refuse to accept it and stop the engine from starting. They are more expensive than traditional keys, but provide additional security. The cost of these keys is more expensive than traditional metal keys however, they provide greater security. Many people are wondering if they could copy a transponder keys for themselves. The answer is yes, but it's best to leave the job to professional auto locksmiths. The procedure can vary depending on the brand and model of your car. Mechanical Keys Many older Nissans had mechanical keys. These keys were made of metal and did not feature remote functions, and were only capable of unlocking the doors and the ignition cylinders of the vehicle. If your key fails or the case is damaged, a locksmith can usually repair the internal parts and make a replacement that operates like new again. A reputable and certified auto locksmith will also be able to cut you a new key at a much lower price than the dealership will charge. There are several types of mechanical keys that each have its own unique replacement procedure. Linear switches are equipped with a linear actuation chart, for instance. This means that, as you push the switch down it will move a certain distance until it hits an obstruction or triggers 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 contain an electronic chip that communicates with the computer system of the vehicle. This means that when you lose your key it will need to be replaced with a new one that is programmed to work with your particular vehicle. This requires a higher level of technology for keys that is only available through an automotive locksmith who is specifically trained, and will cost you more than a standard replacement key you can purchase from the dealership. Key Fobs Since the end of the 1990s, key fobs have become 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 so secure that only someone with your keycode can escape with your car. However, this isn't always the case. It is possible for less cautious individuals to profit from these systems with the simplest of steps. It's possible that you need to replace your Nissan key fob's battery if it's not functioning correctly. The rechargeable CR2025 and CR2032 batteries that are found in all key fobs last about two years. Look up the owner's manual for directions if you're unsure how to replace the battery. If your key fob won't turn on due to a more significant issue, it could need to be replaced or programmed. These problems may be more complicated than replacing the battery and may require an auto locksmith's help. Certain companies specialize in fixing and replacing intelligent keys and can provide you with an OEM intelligent key at a lower price than the dealer. They are also able to come to your home, preventing you from having to leave the vehicle at a garage. They are available all hours of the day, 7 days a weeks. Remotes There are Nissan models that come with a remote keyless entry system which uses an electronic key fob to unlock your door and/or start your engine. It is recommended to have a spare for the event that yours is lost. A functioning replacement key fob can save you the expense of a trip to the dealership for a tow and the cost of replacing the ignition keys that you lost. Fobs emit a frequency that communicates with the vehicle's onboard computer to complete a series of tasks, such as locking or unlocking the doors as well as activating the trunk release, or sounding the alarm that sounds the panic alarm. nissan qashqai key replacement uk G28CarKeys of Nissan replacement key fobs to find a match for your particular model and year. You can also buy an already-programmed key fob which is a less costly option. Make sure you select the correct style, since some look similar and can cause problems if they are not compatible. Online sellers that offer preprogrammed key fobs usually require proof of ownership or registration to prove the legitimacy. Websites that do not ask for this information may be a scam.