Replace Nissan Key Fob Batteries
If your Nissan keyfob doesn't respond to your commands, its battery could be dead. Fortunately, this is a relatively easy repair that most people can complete themselves.
To change the battery, you can either purchase the new one from a hardware shop or consult your owner's guide for the model you have.
Change the battery
The key fob on your Nissan model is equipped with a built-in battery that could eventually lose its charge. The key fob battery can be replaced in just a few minutes. First, you'll need the CR2032 batteries. It's a tiny coin cell battery often used in key fobs and can be found at all convenience stores. You'll also require gloves (latex or non-latex) and a small screwdriver with a flat head to open the fob. Read the owner's manual for detailed instructions and steps to follow before you begin.
Turn the fob upside down and look at the backside. There is a tiny catch that you must release by pulling it downwards. This will release the mechanical key from its original position within the fob.
Then, insert the brand new battery and make sure that it's positioned correctly. Once the battery is inserted close the fob, and click the two sides together. Check the fob's functionality after completing this step by pressing the unlock button. If everything is in good in good order, you're now able to enjoy your Nissan's various features. After changing the battery, it is a good idea to re-program your key fob to make sure that it works properly.
Replace the Transmitter
Your key fob is the "key" for the majority of your vehicle's essential functions. It could be a huge loss when it is lost or damaged. If you lose or damaged key fob, you'll be left without the ability to lock or start your car.
It's a smart idea to keep a spare key fob on for in the event of an emergency. The procedure for replacing your Nissan keyfob can be done in a relatively straightforward manner. The procedure for replacing your Nissan key fob is simple. You'll need an entirely new flathead screwdriver and the new battery to get rid of the old.
You'll require an oval Panasonic CR 2032 3V battery (you are likely to find them in multipacks for under $5 USD). The battery is situated in the back of the key fob. You'll need an incredibly small flathead screwdriver to gently separate the two halves. Make use of a flathead screwdriver as well as smaller flatheads to unbolt the clip on top of the battery. Make sure to note its place of placement. Replace the battery and put the key fob back together, and test it to ensure it works as intended.
Like nissan car keys like yours, like any other electronic device, your Nissan Intelligent Key will eventually wear out from regular use and will require replaced. To help you avoid this is a good idea to shield your key fob from water, magnetic fields and physical impacts Make sure not to drop it or put too much pressure on it.

Replace the Key
If your Nissan key fob dies and you are unable to use it to unlock your vehicle or start it. That's a problem for people who have to go to work in Detroit or to run errands near Dearborn or have an evening out close to Troy.
The good news is that the battery in your Nissan smart key isn't difficult to replace. You can do it at home or at the dealership and you'll typically find a set for $5 or less at the hardware store.
Start by flipping the fob over and pushing a small latch on the back. This will release the emergency key that is mechanical. The emergency key won't allow you to start your vehicle but it will unlock the door.
Then take a look for a small cut on the top of the casing for the key fob. These are ideal to place the screwdriver in the slit, which allows you to take the two parts of the key fob. Once you've reached the internal battery, remove it and note its position. When you're ready to reassemble your key fob, slide the new battery into its spot and snap the two parts of the case. Then you can insert the mechanical key, and your Nissan smart key will work as usual.
Other Issues
Many modern cars are fitted with key fobs that allow you to lock and open them without having a physical car key. To accomplish this, the key fob uses small transmitters to communicate with the car's computer system.
If your Nissan key fob does not function after you replace the battery There could be several reasons for this. One possibility is that the new battery was not correctly installed into the key fob. A reset of the key fob is another possibility. This is a straightforward process that can be completed at home with just a few simple tools.
For example, you'll need a screwdriver, preferably with a flat tip to remove the key fob and then remove the battery that was in there. Then, you'll need a screwdriver to open the back of the key fob and insert the new battery. Then, you'll need reprogramme the key fob so it works with your vehicle.
Fortunately, most Nissan key fobs are programmed by the user which means you can accomplish this yourself. It is usually done by inserting the key fob into the ignition twice in five seconds. If this does not work, bring your key fob to a dealer or auto locksmith to have it programmed. Costs will vary based on the person you call and the type of car you own.