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Replacing the nissan car key replacement key fob battery is usually a quick and simple 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 also need your key code, which must be stored in a secure location and must match the one that came with your car.

Transponder Keys

Transponder keys are often found in modern vehicles. They have an RFID microchip that sends a unique code for the car when the key is put in ignition. It is designed to guard against theft by making sure that only the correct key can start the vehicle. Contact your local dealership or locksmith to see a demonstration of this technology.

When the transponder key is placed in the ignition, it transmits an electrical signal to the chip in the vehicle's engine control unit (ECU). The ECU then checks to see whether the code on the key matches its digital serial number. If it does it, the ECU will then release the immobilizer and permits the engine to start. If the code doesn't matched to the code, then the ECU will block the signal and prevent the engine from starting.

They are more expensive than traditional metal keys but provide added security. However car thieves have developed over time and found ways to circumvent this anti-theft device and so the additional cost will not keep them from doing anything.

Many people wonder if it is possible to duplicate a transponder-key yourself. The answer is yes. However, it's better to leave it up to auto locksmiths. The procedure can vary dependent on the make and model of your car.

Mechanical Keys

A lot of older Nissans had mechanical keys. These traditional keys made of steel did not feature remote functions, and were 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 works as good as new. A qualified and reputable auto locksmith can also cut you keys at a cheaper price than the dealership.

There are a few different types of mechanical keys that each have its own unique replacement process. Linear switches, like come with a linear-actuation graph. This means that as you press the key down, it will move a certain distance until it hits an obstruction or triggers an internal spring. When the key is inserted into the ignition the switch will send an alert to the car to start it up.

Intelligent keys have a chip in them that communicates with the computer system in your vehicle. If you lose your keys, it will need to be replaced with a fresh key that is programmed for the vehicle. This requires more advanced key technology that is only available through a specialist locksmith for automotive. It is more expensive than a standard replacement key at the dealership.

Key Fobs

Since the mid 1990s, key fobs became a standard in the majority of cars. You can lock, unlock and arm your car's alarm at the push of a button. Many people assume that the systems are secure enough to ensure that only the person who has access to your key code can steal your car. However, this isn't always the case. In just a few easy steps, people who aren't terribly careful could take advantage of these systems.

If your Nissan's key fob doesn't function as it should, you might need to replace the battery. Most key fobs have rechargeable CR2025 or the CR2032 battery, and they typically last for two years. If you're not sure of how to replace the battery, refer to your owner's manual to learn more.

If your key fob does not function due to a significant problem, you may need to replace it or program it. These issues can be more complicated than replacing the battery and might require the assistance of an auto locksmith. Some companies specialize in the repair and replacement of smart keys, and can provide you with an OEM smart key at less than the dealership. They are also able to come to your home and save you from having to leave the vehicle at a service center. They are also available all day, seven days a week.

Remotes

Some Nissan models come with a remote keyless system that makes use of keys to open the door and/or to start your engine. A spare key in case you lose your key is highly recommended.

A functional replacement key fob will save you the cost of an expensive tow to the dealer, as well as the high cost of replacing the ignition keys that you lost. Fobs emit a signal that communicates with the computer in the vehicle to complete a series of tasks, such as locking or unlocking the doors, activating the trunk release, or triggering the alarm to alert you to a panic.

Explore our collection of Nissan key fobs for replacement to find a suitable fob for your particular model and year. You can also purchase one that is pre-programmed for an even lower cost. Make sure to select the right style, as many look similar and can cause problems if they are not compatible. Online sellers that provide preprogrammed keys typically require evidence of registration or ownership to verify authenticity. Sites that do not ask for this information may be scams.