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Nissan Car Key Replacement Replacing a 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 must keep safe and must match the one of your car. Transponder Keys Transponder keys are typically found in modern vehicles. They are equipped with 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 correct key is able to start the engine and also prevent theft. Contact your local dealer or locksmith to view the demonstration of this new technology. When the transponder key is inserted into the ignition, it sends an indication to the chip within the engine control unit (ECU). The ECU is then able to determine whether or not the code in the key is in line with its digital serial number. If it does, then the ECU disables the immobilizer in order to allow the engine start. If the code isn't compatible and the ECU will deny the signal and prevent the engine from starting. The keys are more expensive than traditional keys made of metal, but they provide greater security. The cost of these keys is higher than traditional keys made of metal, but they provide more security. Many people are wondering if they can copy a transponder key at home – the answer is yes, but it's best to leave it to professional auto locksmiths. Besides, the process can differ based on your vehicle's make and model. The KeyLab came with mechanical keys. These traditional keys did not come with remote functions, and could only be used to open the doors of the car and the ignition cylinders. Locksmiths can repair the inner components of a broken key or a damaged case and create a replacement key that functions just like the original. A reputable and certified auto locksmith can also cut you the key at a less cost than a dealership. There are many different kinds of mechanical keys, and each has its own unique process for replacement. Linear switches for instance are equipped with a linear actuation graph. This means that, as you push the switch down, it will move a certain distance until it reaches a stopper or actuates an internal spring. The switch will transmit the signal to start the car when the key is introduced into the ignition. Intelligent keys are equipped with an embedded chip that communicates with the computer system in your vehicle. If you lose your key it will need to be replaced with a new one that has been programmed to work with the vehicle. This requires a more sophisticated key technology, only accessible through a specialized locksmith for automotive. It will cost more than a standard key replacement at the dealership. Key Fobs Key fobs have become an integral part of many cars since the late 1990s. You can lock, unlock and arm your car's alarm with the press of a button. Many people believe that these systems are so secure that only someone with your key code could drive away with your car. Unfortunately, this isn't always true. In a couple of easy steps, even the most sloppy of people are able to exploit these systems. You may need to replace your Nissan key fob's battery in case it's not working properly. Most key fobs have rechargeable CR2025 and CR2032 battery, and generally last between two and three years. If you're not sure how to replace the battery, check your owner's manual to learn more. If your key fob doesn't work because of a more serious issue, it could need to be replaced or programmed. These problems can be more difficult to repair than a simple battery replacement, and might require the assistance of an expert auto locksmith. Certain locksmiths specialize in repairing and replacing smart keys, and can offer you an OEM smart key at cheaper than the dealership. They can also visit you, saving you the headache of leaving your vehicle at an establishment for service. They are available 24/7, 7 days a weeks. Remotes There are some Nissan models with a remote keyless entry system which utilizes a key fob to unlock your door and/or start the engine. It is recommended that you have a spare just in case yours gets lost. A key fob replacement that works could save you from having pay for a tow and the expense of replacing your 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, activating trunk release or sounding a panic alarm. Explore our range of Nissan key fobs to find the right one to match your year and model. You can also buy a pre-programmed key fob which is a less expensive option. Choose the correct style since many look alike and could cause problems if not compatible. Additionally, online sellers that offer an already-programmed fob usually require proof of ownership or registration in order to verify legitimacy. Websites that don't request this information could be a scam.