Replace Nissan Key Fob Batteries
If your Nissan key fob isn't responding your instructions, it's most likely that its battery is dying. It's an easy fix that most people can complete themselves.
You can find a replacement from a hardware store or the owner's manual for the specific model you have and you'll need to follow these instructions to change the battery.
The Battery is changed
The key fob on your Nissan model is equipped with a built-in battery that can eventually lose its charge. The battery in the key fob can be replaced in a matter of minutes. You'll first need the CR2032 batteries. It is a small coin-cell battery that is found in most key fobs. You can purchase it in a majority of convenience stores. You will also need gloves (latex or non-latex) and a small screwdriver with a flat head to open the fob. Check the owner's manual for specific instructions and steps to follow before you begin.
When you have the new battery, you can remove the old one by flipping the fob over and looking at the back side. There will be a small latch that you must release by pulling down. This will release the mechanical key from its original position inside the fob.
Then, insert the brand new battery and make sure that it's positioned correctly. Once the battery is placed then close the fob and then press the two sides together. After you have completed this step, test your key fob by pressing the unlock button, and then seeing what happens. If everything is in good and in good working order, you're ready to take advantage of the Nissan's numerous features. After changing the battery, it is a good idea to re-program your key fob to make sure that it's functioning correctly.
Replacing the Transmitter
Your key fob is the "key" to many of your vehicle's most vital functions. It could be a huge loss when it is lost or damaged. A damaged or broken key fob can prevent you from locking and starting your car.
It's smart to keep a spare keyfob in hand in case of an emergency. The process of replacing your Nissan keyfob is relatively simple. You'll need a new battery and a small flathead screwdriver to remove the old one however, the replacement process is very easy and should only take just a few minutes.
You'll also need an Panasonic CR2032 3V round battery (you can find them in multipacks priced less than $5 USD). The battery is in the back of the key fob. replacement key for nissan juke 'll need a small flathead screwdriver to gently separate the two halves. Utilize a small screwdriver to push the clip on top of the battery and lift it out, making a note of its location. Replace the battery and put the key fob back together. You can test it to make sure it functions properly.
Like any electronic device that you own, like any other electronic device, your Nissan Intelligent Key will eventually wear out over time due to normal use and will require replaced. To avoid this issue, it's a good idea to shield your key fob from water, magnetic fields and physical impacts Be careful not to drop it or put too much pressure on it.

Replace the Key
If your Nissan key fob fails in the middle, you won't be able to use it to unlock your vehicle or start it. This is a problem for those who have to go to work in Detroit or to run errands in Dearborn.
It's not too difficult to change the battery on your Nissan Smart Key. You can do it at home or at the dealership and usually, you can find a set for $5 or less at the hardware store.
Start by flipping over the fob and pushing a small catch on the back. This will open the emergency key that is mechanical. Although you won't be able to use the emergency key to start your car it will let you open the door.
Next take a look for a small opening on the top of the casing for the key fob. You can use a screwdriver or a plier to break off the two pieces of the key fob. Once you've reached the internal battery, remove it and note its position. When you're ready to put back together the key fob, slide the new battery into its place and then snap the two pieces of the case together. Insert the mechanical key and your Nissan smartkey will function as usual.
Other Problems
Many modern vehicles come with key fobs, which let you to lock them and start them without having a physical key. Key fobs use the transmitter to communicate with the computer system of the car.
There are many possible reasons that your Nissan key fob won't work after you replace the battery. One possibility is that the new battery was not correctly installed into the key fob. Another possibility is that the key fob has to be reset. This is a simple procedure that you can do at home with a few tools.
For instance, you'll need a screwdriver, and preferably with a flat head to remove the key fob to remove the old battery. After that, using an screwdriver, you can pry the back of the keyfob and then insert the new batteries. It is also necessary to reprogramme your key fob to allow it to function with your vehicle.
Fortunately, the majority of Nissan key fobs can be programmed, so you can easily accomplish this yourself. You can usually do this by inserting the key fob in the ignition twice in five minutes. If this doesn't work it is possible to take your key fob to a dealer or auto locksmith to have it programmed. The cost will depend on the person you speak with and what kind of vehicle you own.