Replace Nissan Key Fob Batteries
If your Nissan key fob isn't responding properly to your instructions, it's most likely that its battery is dying. This is a repair that a majority of people can do themselves.
You can buy a replacement from a hardware store or from your owner's manual that is specific to the model you own, and you'll need to follow these instructions to change the battery.
Change the Battery
The key fob in your Nissan model is fitted with a lithium battery built-in that will eventually lose its charge. The key fob's battery can be changed in a matter of minutes. You'll first need the CR2032 battery. This is a small coin cell battery that's typically used in key fobs and it can be found in most convenience stores. You'll also require a pair of gloves (latex or non-latex) and an affixed screwdriver that is small enough to open the fob. Check the owner's manual for specific instructions and steps before you begin.
Flip the fob upside-down and look over the backside. You will see a small catch that you need to release by pulling it downwards. This will open the mechanical key from its initial position inside the fob.
Insert the new battery next and ensure that it is properly positioned. Once The KeyLab is inserted close the fob and then click the two sides together. After you have completed this step verify your key fob by pressing the unlock button and seeing what happens. If everything is in working in good order, you're now able to enjoy the Nissan's features. It's also a good idea to re-program your key fob following the change of the battery to make sure it's functioning correctly.
Replacing the Transmitter
With your key fob acting as the "key" to a myriad of your car's key functions, it can be a huge loss should you lose or break it. A damaged or malfunctioning key fob can prevent you from locking or starting your car.
So, it's a good idea to keep a spare key fob around in case of an emergency. Fortunately, the process of replacing your Nissan key fob is relatively easy. You'll need a new battery and a small screwdriver for removing the old one, but the replacement process is easy and will only take about a couple of minutes.
You'll also need a Panasonic CR2032 3V round battery (you can purchase them in multipacks that cost under $5 USD). The battery is located in the back half and you'll have to gently pull the two halves in order to expose the battery. Make use of a flathead screwdriver as well as small flatheads to remove the clip on the top of the battery. Make sure you note the place of placement. Replace the battery and put the key fob back together. You can test it to ensure it works as intended.
Nissan Intelligent Keys will eventually wear out and require to be changed just like every other electronic device. Protect your key fob against magnetic fields, water and physical impacts. Don't drop it, or put too much pressure on the device.
Replacing the Key
When your Nissan key fob is not working, you can't use it to unlock or start your car. This is a problem for those who have to go to work in Detroit or go on errands around Dearborn.
It's not too difficult to change the battery in your Nissan Smart Key. You can replace the battery at home, or at the dealership. A pack usually costs less than $5.
Begin by flipping over the fob and then pushing a small catch on the back. This will release the emergency mechanical keys inside. The emergency key won't allow you to start your vehicle but it will unlock the door.
Look for a small opening at the top of the casing. You can use a screwdriver for prying apart the two pieces of the key fob. Once you've got access to the internal battery, pull it out and make note of its position. When you're ready to put back together the key fob, slide the new battery back into its place and then snap the two pieces of the case together. Then put in the mechanical key and your Nissan smart key will function as normal.
Other Issues
Many modern cars come with key fobs that allow you to lock them and then start them without the need for a physical key. The key fob works as a transmitter to connect to the computer system in the car.
There are many possible reasons why your Nissan key fob does not work after you replace the battery. One possibility is that the new battery was not properly installed into the key fob. Another possibility is that the key fob has to be reset. It's an easy task that can be accomplished at home with the right tools.
For example, you'll need an appropriate screwdriver, with preferably a flat head, to open the key fob to remove the old battery. Then, you can use a screwdriver to open the back of the key fob to insert the new battery. After that, you'll need to reprogramme the key fob so it works with your vehicle.
Fortunately, most Nissan key fobs can be programmed, so you can easily do it yourself. It is usually done by inserting the key fob in the ignition twice in five minutes. If this does not work, bring your key fob to a dealer or auto locksmith to be programmed. The cost will vary depending on the person who you contact and the kind of vehicle you own.