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Nissan Car Key Replacement Replacing a Nissan key fob battery is typically 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 require your keycode, which you must keep in a safe location and should be the same as that of your vehicle. Transponder Keys Often found in newer cars Transponder keys typically come with an RFID microchip in the key that transmits a specific code to the car every time it is inserted into the ignition. It is designed to ensure that only the correct key can be used to start the engine and prevent theft. Contact your local dealership or locksmith for a demonstration of this technology. When the transponder is placed in the ignition, it sends an information to the chip in the engine control unit (ECU) of the vehicle. The ECU determines if the code on the key matches the digital serial number of the ECU. If it does then the ECU removes the immobilizer and allows the engine to begin. If the code is not compatible then the ECU will block the engine from beginning. They are more expensive than traditional keys made of metal however, they are more secure. The cost of these keys is higher than traditional keys made of metal however they offer more security. Many people wonder if they could copy a transponder keys by themselves. The answer is yes however, it is best to leave it to professionals who can help you. The process can also vary depending on the make and model of your vehicle. Mechanical Keys Many older Nissan cars came with mechanical keys. The traditional keys made of metal were not equipped with remote functions, and could only be used to unlock the doors of the vehicle and the ignition cylinders. If your key fails or the case is damaged, a locksmith will usually repair the internal parts and make a replacement that operates like new again. A reputable and certified auto locksmith can also cut keys at a lower cost than the dealer. There are many different kinds of mechanical keys and each one has its particular method for replacement. Linear switches, for instance come with a linear-actuation graph. As you press the key down, it will move until it reaches an obstruction. When the key is inserted into the ignition, the switch will send an indication to the car to start it up. Intelligent keys are equipped with an internal chip that communicates with the computer system in your vehicle. When you lose your key it will have to be replaced by a new one that is programmed to work with the vehicle. This requires a more advanced key technology that is only available through an automotive locksmith. It will cost more than a standard replacement key at the dealership. Key Fobs Since the end of the 1990s, key fobs became a standard in most cars. They allow you to unlock, lock and arm the alarm of your car with 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. But this isn't always the case. With just a few steps, even the most sloppy of people are able to exploit these systems. key maker near me that you need to replace your Nissan key fob's batteries if they aren't functioning correctly. The rechargeable CR2025 and CR2032 batteries found in most key fobs will last around two years. Look up the owner's manual for instructions if you are uncertain about how to replace the battery. If your key fob doesn't work due to a larger problem, it may need to be replaced or programmed. These issues can be more complicated to fix than an easy battery replacement and they might require the assistance of an expert auto locksmith. Some locksmiths specialize in the repair and replacement of smart keys, and are able to provide you with an OEM intelligent key for a much lower price than the dealership. They are also able to visit you, saving you the inconvenience of having to drop off your vehicle at an establishment for service. They are open 24 hours a day and 7 days a week. Remotes There are some Nissan models with a remote keyless entry system, which uses an electronic key fob to unlock your door and/or to start the engine. It is recommended to have a spare for the event that yours is lost. A functional replacement key fob will save you the cost of an expensive tow to the dealer, as well as the cost of replacing your ignition keys. Fobs emit a sound that communicates with the car's onboard computer to complete a series of actions, including locking or unlocking the doors or trunk release, or triggering the panic alarm. Browse our selection of Nissan key fobs for replacement to find a suitable fob to your particular model and year. You can also buy an already-programmed fob to make it an even more affordable option. Choose the correct style since many look alike and can create problems if not compatible. Online sellers that offer preprogrammed key fobs typically require proof of ownership or registration to prove the legitimacy. Be wary of websites that do not ask for this information, and could be scams.