UniEnergy Technologies Battery » How To Change The Old Battery In A Nissan Key Fob? (3 Simple Steps & Extended Tips)

How To Change The Old Battery In A Nissan Key Fob? (3 Simple Steps & Extended Tips)

Your Nissan car key fob is an integral device in your life.

This blog post will show you how to change the battery in a Nissan key fob yourself when it dies. And it’s a lot easier than you might think!

Read on for some time-saving information on changing the battery in your Nissan key fob.

What Are The Steps For Nissan Key Fob Battery Replacement?

What Are The Steps For Nissan Key Fob Battery Replacement?
Image Credit: denver-locksmith

The Nissan Intelligent Key is a great feature that allows you to unlock your car doors without having to use a traditional key.

Button cells are the most common battery type used in Nissan key fobs. Luckily, changing the battery is a fairly easy process that you can do at home with just a few access tools.  All you need is a small coin or flathead screwdriver and a new CR2032 battery.

Step 1: Start by using your small flathead screwdriver to remove the back panel of your key fob. There is usually a small tab or notch that you can use to pry it open. Consult your Nissan’s owner manual for guidance if you can’t find it.

Step 2: Once the back cover is off, take out the old battery and note which way it is facing. This will help you orient the new battery in the same way. You can take the negative side of the battery as a reference.

Step 3: Put the new battery in place and the key housing back.

That’s it! You should now have a working key fob. If not, try repeating these steps or consult a professional for help. You will follow the same procedure for Nissan Rogue or Nissan Altima.

How Long Do Nissan Key Fob Batteries Last?

The average lifespan of a button cell battery is around two to three years. However, this can vary depending on the type of battery, how often you use your key fob and other factors.

If you find that you’re having to change your key fob’s batteries more often than every three years, there are a few things you can do to extend its life.

First, avoid exposing your key fob to high temperatures. This can shorten the battery’s lifespan. If you live in a hot climate, keep your key fob out of direct sunlight as much as possible.

In cold weather, avoid leaving your key fob in the car where it can be exposed to the elements.

Another way to prolong the life of your key fob’s battery is to avoid unnecessarily pressing the buttons. If you don’t need to use your key fob, leave it in your purse or pocket. Pressing the buttons too often can drain the battery faster.

Can You Use A Key Fob With Low Battery?

Can You Use A Key Fob With Low Battery?
Image Credit: vehq

If you’re a proud Nissan Altima or Nissan Rogue owner, you may be wondering if you can use a key fob with a low battery.

The answer is yes! Even if your key fob’s battery is low, you can still use it to unlock your doors and start your car.

If your key fob does have a low battery, you may notice that it takes longer for the doors to unlock or that the range is not as far as it used to be. You may also notice that the key fob’s buttons are not as responsive as they used to be.

If you’re having any of these issues, it is probably time to change the batteries in your key fob.

If you find yourself in a situation where your key fob’s battery is completely dead and you can’t get into your car, don’t worry! You can still unlock your doors manually with your key. Once you are inside your car, you can start the engine with the push of a button. No key fob is necessary!

So, the next time your key fob’s battery starts to get low, don’t panic. You can still use your key fob. Just be sure to change the batteries as soon as possible for convenience.

Unlock & Start Your Nissan If The Key Fob Battery Is Dead

Here’s a quick guide on unlocking and starting your car if the key fob battery is dead.

1. Stressing the “Start” Button

  • Press on the key fob. If it doesn’t work, it’s probably because the battery is dead.
  • If the key fob has a physical hidden key or backup key inside, flip the key fob and get it. Once inside, look for a button near the steering column that says “Start.” Press that, and your car should start right up.
  • If there’s no hidden emergency key and you can’t find the start button, you’ll need to call a tow truck or Nissan dealer for assistance.

2. Using A Dead Key Fob To Start A Nissan

You can do a few things to start your Nissan with a dead key fob battery.

  • One thing you can try is to use the key itself. This may work if you insert the key into the ignition and turn it.
  • Another thing you can do is use a spare key fob. If you have a spare key fob, you can try starting your car with that.

If neither of these methods works, you can try starting your car with a jump start. To do this, you’ll need to connect jumper cables to your car’s battery.

How To Program Your Nissan Intelligent Key?

If you have misplaced your key or need to program a new one, follow these steps:

Step 1: Make sure your key is in the ignition and turn it “On” without starting the engine.

Step 2: Press and release the “Lock” button on your key fob within five seconds.

Step 3: Press and release the “Unlock” button on your key fob within five seconds.

Step 4: Within five seconds, press and release the “Lock” button on your key fob again.

Step 5: Your Nissan’s headlights should flash to indicate that the new key has been programmed successfully.

Nissan Key Fob Old Battery Replacement: What To Watch Out For

Replacing the battery in your Nissan key fob is a pretty straightforward process, but there are a few things you’ll want to keep in mind to make sure it goes smoothly.

  • Be sure to purchase a replacement battery that is specifically designed for your key fob model. You can usually find this information on the back of the key fob or in your owner’s manual. Once you have the correct battery, simply remove the old one and insert the new one in its place.
  • Be careful not to touch the exposed metal contacts on the new battery, as this can cause corrosion and prevent it from working properly. Also, make sure that the new battery is inserted with the positive (+) side facing up.
  • Once you have replaced the battery, reassemble your key fob and test it out to ensure it’s working properly.
  • With these simple tips in mind, replacing the battery in your Nissan key fob should be a breeze!


Image Credit: vehiclehistory

1. What Is The Size Of The Nissan Key Fob Battery?

A Nissan key fob typically operates on a frequency of 315 MHz and can be used to unlock and lock your doors and start the engine.

The Nissan key fob uses a CR2032 battery, which is a 3-volt lithium coin cell battery. This type of battery is also used in many other devices, such as watches, calculators, and keyless entry remote controls.

2. Where Can You Buy A Key Battery Replacement For A Nissan Key Fob?

The good news is that you don’t have to go to a Nissan dealership to get a new key battery. In fact, you can find replacement key batteries for most makes and models of cars at your local hardware store or electronics store.

However, we recommend that you buy a high-quality key battery from a reputable brand like Duracell. This will help ensure that your new key battery lasts as long as possible.

3. When Should You Replace The Battery In Your Nissan Key Fob?

Most experts recommend that you replace the battery in your Nissan key fob every two years to keep it working properly. However, if you live in a hot or cold climate, you may need to replace the battery more often.

If your Nissan key fob starts to act erratically or fails to work altogether, it’s probably time to replace the battery.

If you have a Nissan with a keyless remote, it’s important to know how to change the battery. Not only will this ensure that your car starts when you need it to, but it will also save you money in the long run.


The buttons on your Nissan key fob are vital to your car ownership experience. Regularly check and replace the battery to avoid any problems. You can do this yourself.

Simply follow the steps above, and you’ll have a new battery in no time.

If you have an older model Nissan, you may need to get the key fob replaced entirely. But as long as you take good care of it, your key fob should give you years of happy button-pushing!

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