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Nissan Car Key Replacement Replacing a Nissan key fob battery is generally an easy and simple task. 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 must keep in a safe location and should be the same as that of your vehicle. Transponder Keys Transponder keys can be used in newer cars. They are equipped with an RFID microchip that emits a unique car number when the key is placed in the 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 the technology's working get in touch with your local locksmith or dealer to schedule an explanation. When the transponder is put into the ignition, it sends an information to the chip that is inside the engine control unit (ECU) of the vehicle. The ECU examines if the number on the key matches the serial number digital of the ECU. If it does, then the ECU disables the immobilizer in order so that the engine can start. If the code is not compatible with the code, the ECU will block the engine from starting. They are more expensive than the traditional metal keys, however, they are more secure. However car thieves have evolved to the changing times and have found ways to circumvent this anti-theft device therefore the extra cost won't dissuade them completely. Many people are wondering if they can copy a transponder key for themselves. The answer is yes but it's best to leave it to a professional auto locksmith. Furthermore, the procedure can differ based on your vehicle's make and model. Mechanical Keys Many older Nissan cars came with mechanical keys. The traditional keys made of metal did not have remote functions and were only used to unlock the doors of the vehicle and the ignition cylinders. A locksmith can replace the inner components of a broken key or damaged case to create a new key that functions like new. A licensed and reputable auto locksmith can also cut keys at a cheaper price than the dealership. There are a variety of mechanical keys and each one has its distinct method of replacement. Linear switches, like come with a linear-actuation graph. This means that, as you push the key down it will move down a certain distance until it reaches a stopper or actuates an internal spring. The switch will send a signal to start the car once the key is placed in the ignition. Intelligent keys are equipped with a chip inside them that communicates with the computer system in your vehicle. When you lose your key it will need to be replaced with a brand new one programmed to work for the vehicle. This requires a higher degree of technology for keys that is only available through a specialized automotive locksmith, and will cost you more than a regular replacement key you can purchase from the dealership. Key Fobs Key fobs have become an integral part of many cars since the late 1990s. You can unlock, lock and arm your car's alarm with the click of a switch. Many people believe that these systems are secure enough that only a person who has access to your key code can drive off with your vehicle. However, this isn't always the case. It is possible for less cautious individuals to exploit these systems with only a few simple steps. It's possible to replace your Nissan key fob's battery in case it's not working properly. The rechargeable CR2025 and the CR2032 batteries that are found in all key fobs last for about two years. Check the owner's manual for the correct procedure if not sure how to change the battery. If your key fob doesn't work because of a serious problem, you may need to replace it or program it. These issues could be more complicated than an easy replacement of the battery and may require the assistance of an auto locksmith. replacement nissan keys specialize in replacing and repairing smart keys and can supply you with an OEM intelligent key at a cheaper cost than the dealer. They are also able to come to you, saving you the burden of having to leave your vehicle in the service center. They are available all hours of the day all week. Remotes Certain Nissan models have a remote keyless system that utilizes an electronic key fob to unlock the door and/or start your engine. A spare key in case you lose your key is highly recommended. A replacement key fob that works could save you from having pay for a tow as well as the cost of replacing your lost ignition keys. Fobs emit frequencies that communicate with the computer of the vehicle to perform a variety of tasks such as locking and unlocking doors and trunk release, as well as alarms that sound panic. Browse our selection of Nissan key fobs and locate the perfect one to match your year and model. You can also buy an already-programmed fob to make it the same price. Be sure to choose the right style, as several look similar and may create headaches if they're not compatible. Additionally, online sellers selling a pre-programmed fob typically require proof of ownership or registration to confirm authenticity. Websites that do not require this information might be frauds.